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Read the passage and mark A, B, C, or D to indicate the correct word that best fits each of the blanks
The World Wide Fund for Nature (WWF) is an international non-governmental organization for the conservation research, and restoration of the environment. The organization was as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million worldwide, working in more than 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with 9% of its funding coming from voluntary donations by private individuals and businesses.
The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned endangered species, pollution, and climate change. The organization more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
Read the passage and mark A, B, C, or D to indicate the correct word that best fits each of the blanks
The World Wide Fund for Nature (WWF) is an international non-governmental organization for the conservation research, and restoration of the environment. The organization was as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million worldwide, working in more than 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with 9% of its funding coming from voluntary donations by private individuals and businesses.
The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned endangered species, pollution, and climate change. The organization more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
Read the passage and mark A, B, C, or D to indicate the correct word that best fits each of the blanks
The World Wide Fund for Nature (WWF) is an international non-governmental organization for the conservation research, and restoration of the environment. The organization was as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million worldwide, working in more than 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with 9% of its funding coming from voluntary donations by private individuals and businesses.
The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned endangered species, pollution, and climate change. The organization more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
Read the passage and mark A, B, C, or D to indicate the correct word that best fits each of the blanks
The World Wide Fund for Nature (WWF) is an international non-governmental organization for the conservation research, and restoration of the environment. The organization was as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million worldwide, working in more than 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with 9% of its funding coming from voluntary donations by private individuals and businesses.
The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned endangered species, pollution, and climate change. The organization more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
Read the passage and mark A, B, C, or D to indicate the correct word that best fits each of the blanks
The World Wide Fund for Nature (WWF) is an international non-governmental organization for the conservation research, and restoration of the environment. The organization was as a charitable trust on September 11, 1961, in Morges, Switzerland, under the name World Wildlife Fund. It was an initiative of Julian Huxley and Max Nicholson.
It is the world's largest independent conservation organization with over 5 million worldwide, working in more than 90 countries, supporting 100 conservation and environmental projects around the world. It is a charity, with 9% of its funding coming from voluntary donations by private individuals and businesses.
The group says its mission is "to halt and reverse the destruction of our environment". Currently, much of its work focuses on the conservation of three biomes that contain most of the world's biodiversity: forests, freshwater ecosystems, and oceans and coasts. Among other issues, it is also concerned endangered species, pollution, and climate change. The organization more than 20 field projects worldwide. In the last few years, the organization set up offices and operations around the world.
Mark A, B, C, or D to indicate the most suitable response to complete each of the following exchanges
- “Did you get everything you wanted?”
– “ .”
Mark A, B, C, or D to indicate the most suitable response to complete each of the following exchanges
- “Don't tell anyone my phone number.” – “ .”
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
Which of the following sentences is closest in meaning to the sentence “There will always be good career opportunities for people with ability, skills and determination, the secret to securing a good job is to be one of them”
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
In paragraph 1, "_those days are gone, even in Hong Kong_", suggests that .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
In paragraph 3, "_in more depth_" could be .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
In paragraph 4, the writer seems to suggest that .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
The word "_recruit_" in the first paragraph refers to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
According to the passage, which of the following is NOT true?
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
Not so long ago almost any student who successfully completed a university degree or diploma course could find a good career quite easily. Companies toured the academic institutions, competing with each other to _recruit _graduates. However, those days are gone, even in Hong Kong, and nowadays graduates often face strong competition in the search for jobs.
Most careers organizations highlight three stages for graduates to follow in the process of securing a suitable career: recognizing abilities, matching these to available vacancies and presenting them well to prospective employers. Job seekers have to make a careful assessment of their own abilities. One area of assessment should be of their academic qualifications, which would include special skills within their subject area. Graduates should also consider their own personal values and attitudes, or the relative importance to themselves of such matters as money, security, leadership and caring for others. An honest assessment of personal interests and abilities such as creative or scientific skills, or skills acquired from work experience, should also be given careful thought.
The second stage is to study the opportunities available for employment and to think about how the general employment situation is likely to develop in the future. To do this, graduates can study job vacancies and information in newspapers or they can visit a careers office, write to possible employers for information or contact friends or relatives who may already be involved in a particular profession. After studying all the various options, they should be in a position to make informed comparisons between various careers. Good personal presentation is essential in the search for a good career. Job application forms and letters should, of course, be filled in carefully and correctly, without grammar or spelling errors. Where additional information is asked for, job seekers should describe their abilities and work experience _in more depth__,_ with examples if possible. They should try to balance their own abilities with the employer’s needs, explain why they are interested in a career with the particular company and try to show that they already know something about the company and its activities.
When graduates are asked to attend for interview, they should prepare properly by finding out all they can about the _prospective _employer. Dressing suitably and arriving for the interview on time are also obviously important. Interviewees should try to give positive and helpful answers and should not be afraid to ask questions about anything they are unsure about. This is much better than pretending to understand a question and giving an unsuitable answer. There will always be good career opportunities for people with ability, skills and determination; the secret to securing a good job is to be one of them.
The word "_prospective_" in paragraph 4 is closest in meaning to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "_dwarfs_" in the second paragraph is closest in meaning to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
What does the passage mainly discuss?
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "_adversely_" in the first paragraph is opposite in meaning to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
According to the passage, the numerical value of the concentration level of a substance is only useful if ?
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
For which of the following reasons can natural pollutants play an important role in controlling air pollution?
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "_detectable_" in the third paragraph is closest in meaning to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
The word "_noxious_" in the third paragraph is closest in meaning to .
Read the passage and mark A, B, C, or D to indicate the correct answer to each of the questions
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials _adversely_. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and nitrogen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions, they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds _dwarfs_ that resulting from human activities.
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of _noxious_ chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has _detectable_ health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.
According to the passage, human-generated air pollution in localized regions ___.
Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
Choose the word(s) CLOSEST in meaning to the underlined word(s): "What I've got to say to you now is strictly _off the record_ and most certainly not for publication," said the government official to the reporter.
Mark the letter A, B, C, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions
Choose the word(s) CLOSEST in meaning to the underlined word(s): Before the interview, you have to send a letter of application and your _resume_ to the company.
Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
Choose the word(s) OPPOSITE in meaning to the underlined word(s): "That is a _well-behaved_ boy whose behavior has nothing to complain about"
Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
Choose the word(s) OPPOSITE in meaning to the underlined word(s): The consequences of the typhoon were _disastrous_ due to the lack of precautionary measures.
Mark A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions
The meeting was put off because of pressure of time.
Mark A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions
Only customers with coupons may use the service.
Mark A, B, C, or D to indicate the sentence that is closest in meaning to each of the following questions
Tom regrets to say that he has left his tickets at home.
Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
Choose the word whose underlined part differs from the other three in pronunciation: h_eal_, st_eal_, d_eal_, gr_eat_
Mark the letter A, B, C, or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
Choose the word whose underlined part differs from the other three in pronunciation: o_ce_an, techni_ci_an, commer_ci_al, ne_ce_ssary
Mark A, B, C, or D to indicate the underlined part that needs correction in each of the questions
Find the mistake: He _smoked__very much__so_ he died _for_ lung cancer.
Mark A, B, C, or D to indicate the underlined part that needs correction in each of the questions
Find the mistake: I enjoyed _talking_ to _the_ people _with that_ I met _at the party_ last night.
Mark A, B, C, or D to indicate the underlined part that needs correction in each of the questions
Find the mistake: In case _it will rain_ hard _this afternoon_, you should _take_ the raincoat _with_ you.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
Nowadays, with the help of the computer, teachers have developed a approach to teaching.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
A large number of inventions and discoveries have been made accident.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
Laser disc provides images of either television signals or video tapes.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
I live next to a nursing home for very old.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
The pool should not be made so deep small children can be safe there.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
She asked me I was looking at.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
Yes, the script was excellent, but the performances were weak.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
Have dinner with us, ?
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
in business, one must be prepared to take risks.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
The headmaster has decided that three lecture halls in our school next semester.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
After the new technique had been introduced, the factory produced cars in 2014 as the year before.
Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions
It is imperative that you there in person.
Mark A, B, C, or D to indicate the sentence that best combines each pair of sentences in the questions
David loves Anna. That's why he bought tickets for her live show last week.
Mark A, B, C, or D to indicate the sentence that best combines each pair of sentences in the questions
The fire-fighters made every effort to put off the flames. The building burned down completely.
Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions
Choose the word that differs from the other three in the position of primary stress: necessary, reflection, invention, attention
Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions
Choose the word that differs from the other three in the position of primary stress: apology, direct, experienced, follow
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