Đề thi thử thpt quốc gia môn Tiếng Anh cực hay có lời giải chi tiết ( Đề số 18)

Mark the letter A, B,C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

Mark the letter A, B,C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions

A beaver uses its strong front teeth to cut down trees and peel off its bark

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions

The clerks who are happy to wait for their customers will get promoted soon.

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions

Although lacking in calcium and vitamin A, grains have most carbohydrates than any other food

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question

These shoes won’t __________your trousers

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question

I can’t wear this coat to work because there are two buttons __________

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The movie is__________Shakespeare’s Hamlet in a number of ways.

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I__________all members by tomorrow night.

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The Internet has enabled people to __________with each other more quickly

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Houses in big cities are expensive because land is in__________supply

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Solar heat penetrates more deeply into water than__________

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She’s got 100 percent on the exam and the other students were below 70 percent. She’s__________above the rest.

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__________orangutans live alone

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The forecast has revealed that the world’s reserves of fossil fuel will have__________by 2015

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The poor child was in __________because his bike had been stolen

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As soon as she __________home, she took off her shoes and __________her slippers

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges

Mr Black: “ I’d like to try on these shoes, please.” Salesgirl: “__________”

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges

Susan: “I had a really good weekend at my uncle’s.” Peter: “__________”

Choose the word which has CLOSEST meaning to the underlined word

Drivers who break traffic rules will be photographed

Choose the word which has CLOSEST meaning to the underlined word

The students came up with some novel ideas for fund-raising

Choose the word which has OPPOSITE meaning to the underlined word

A tangerine, which is flatter than an orange, peels and separates more readily

Choose the word which has OPPOSITE meaning to the underlined word

Catherine made a negligible effort to extend the freedoms of most Russians

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

You are obliged to stop when the lights turn red

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

If he had known the road was icy, he wouldn’t have been driving very fast

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

In the end, I felt I had been right to leave the club

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions

She doesn’t have a car. She doesn’t go out in the evening

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What was the name of the man? You met and talked to him this morning

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

The future of the African elephant depends on man. No (31)_________ can human beings and wild animals live in harmony throughout vast area of the continent as was possible in days gone by, for man’s needs have increased as well as his numbers. There are regions, such as the Congo forests and the equatorial Sudan, (32)_________ the old relationship may remain for a few more years or even generations, but in general it has gone. Conservation, if it is to be effective, should be a positive, constructive policy, and it is wishful thinking to imagine otherwise, (33)_________ in the case of the elephant. And this is not yet true of the whole of Africa, it soon will be, for the increase in the human population is almost universal. Where human beings and wild animals find themselves in competition with each other, the animals will (34)_________ Even if there appears to be enough room for both, man will not tolerate long a situation in which elephants and other (35)_________ make even occasional raids on his fields of food or economic crops. For many years this has been a major cause of conflicting interests and one of the reasons why so many elephants have been shot to control their numbers

 Điền vào ô số 31.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

The future of the African elephant depends on man. No (31)_________ can human beings and wild animals live in harmony throughout vast area of the continent as was possible in days gone by, for man’s needs have increased as well as his numbers. There are regions, such as the Congo forests and the equatorial Sudan, (32)_________ the old relationship may remain for a few more years or even generations, but in general it has gone. Conservation, if it is to be effective, should be a positive, constructive policy, and it is wishful thinking to imagine otherwise, (33)_________ in the case of the elephant. And this is not yet true of the whole of Africa, it soon will be, for the increase in the human population is almost universal. Where human beings and wild animals find themselves in competition with each other, the animals will (34)_________ Even if there appears to be enough room for both, man will not tolerate long a situation in which elephants and other (35)_________ make even occasional raids on his fields of food or economic crops. For many years this has been a major cause of conflicting interests and one of the reasons why so many elephants have been shot to control their numbers

 Điền vào ô số 32

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

The future of the African elephant depends on man. No (31)_________ can human beings and wild animals live in harmony throughout vast area of the continent as was possible in days gone by, for man’s needs have increased as well as his numbers. There are regions, such as the Congo forests and the equatorial Sudan, (32)_________ the old relationship may remain for a few more years or even generations, but in general it has gone. Conservation, if it is to be effective, should be a positive, constructive policy, and it is wishful thinking to imagine otherwise, (33)_________ in the case of the elephant. And this is not yet true of the whole of Africa, it soon will be, for the increase in the human population is almost universal. Where human beings and wild animals find themselves in competition with each other, the animals will (34)_________ Even if there appears to be enough room for both, man will not tolerate long a situation in which elephants and other (35)_________ make even occasional raids on his fields of food or economic crops. For many years this has been a major cause of conflicting interests and one of the reasons why so many elephants have been shot to control their numbers

 Điền vào ô số 33

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

The future of the African elephant depends on man. No (31)_________ can human beings and wild animals live in harmony throughout vast area of the continent as was possible in days gone by, for man’s needs have increased as well as his numbers. There are regions, such as the Congo forests and the equatorial Sudan, (32)_________ the old relationship may remain for a few more years or even generations, but in general it has gone. Conservation, if it is to be effective, should be a positive, constructive policy, and it is wishful thinking to imagine otherwise, (33)_________ in the case of the elephant. And this is not yet true of the whole of Africa, it soon will be, for the increase in the human population is almost universal. Where human beings and wild animals find themselves in competition with each other, the animals will (34)_________ Even if there appears to be enough room for both, man will not tolerate long a situation in which elephants and other (35)_________ make even occasional raids on his fields of food or economic crops. For many years this has been a major cause of conflicting interests and one of the reasons why so many elephants have been shot to control their numbers

 Điền vào ô số 34

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer for each of the blanks.

The future of the African elephant depends on man. No (31)_________ can human beings and wild animals live in harmony throughout vast area of the continent as was possible in days gone by, for man’s needs have increased as well as his numbers. There are regions, such as the Congo forests and the equatorial Sudan, (32)_________ the old relationship may remain for a few more years or even generations, but in general it has gone. Conservation, if it is to be effective, should be a positive, constructive policy, and it is wishful thinking to imagine otherwise, (33)_________ in the case of the elephant. And this is not yet true of the whole of Africa, it soon will be, for the increase in the human population is almost universal. Where human beings and wild animals find themselves in competition with each other, the animals will (34)_________ Even if there appears to be enough room for both, man will not tolerate long a situation in which elephants and other (35)_________ make even occasional raids on his fields of food or economic crops. For many years this has been a major cause of conflicting interests and one of the reasons why so many elephants have been shot to control their numbers

 Điền vào ô số 35

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

What is the main topic of the passage?

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

According to the passage, how many states were represented at the Constitutional Convention?

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

It can be inferred from the passage that the Articles of Confederation

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

According to the passage, in 1787 which of the following states had FEWEST people?

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

The phrase “this plan” refers to

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

The word “shrewd” is closest in meaning to

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

Fifty-five delegates representing all thirteen states except Rhode Island attended the Constitutional Convention in Philadelphia from May to September 1787. The delegates had been instructed by the Continental Congress to revise the old Articles of Confederation, but most believed that a stronger central government was needed. There were differences, however, about what structure the government should take and how much influence large states should have.

Virginia was by far the most populous state, with twice as many as people as New York, four times as many as New Jersey, and ten times as many as Delaware. The leader of the Virginia delegation, James Madison, had already drawn up a plan for government, which became known as the Large State Plan. Its essence was that congressional representation would be based on population. It provided for two or more national executives. The smaller states feared that under this plan, a few large states would lord over the rest. New Jersey countered with the Small State Plan. It provided for equal representation for all states in a national legislature and for a single national executive. Angry debate, heightened by a stifling heat wave, led to deadlock.

A cooling of tempers seemed to come with lower temperatures. The delegates hammered out an agreement known as the Great Compromise- actually a bundle of shrewd compromises. They decided that Congress would consist of two houses. The larger states were granted representation based on population in the lower house, the House of Representatives. The smaller states were given equal representation in the upper house, the Senate, in which each state would have two senators regardless of population. It was also agreed that there would be a single executive, the president. This critical compromise broke the logjam, and from then on, success seemed within reach.

Which of the following is NOT given in the passage as one of the provisions of the Great Compromise?

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

According to the passage, a modern scientist should be more concerned about__________.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

The pronoun "it" in paragraph 2 refers to__________.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

It is implied in the passage that genetic engineering__________.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

The pronoun "they" in paragraph 2 refers to__________.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

The word "which" in paragraph 3 refers to __________.

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

According to the passage, to save our planet, biologists should work

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

Which of the following is closest in meaning to the word "ramifications" in paragraph 4?

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question.

The biologist's role in society as well as his moral and ethical responsibility in the discovery and development of new ideas has led to a reassessment of his social and scientific value systems. A scientist can no longer ignore the consequences of his discoveries; he is as concerned with the possible misuses of his findings as he is with the basic research in which he is involved. This emerging social and political role of the biologist and all other scientists requires a weighing of values that cannot be done with the accuracy or the objectivity of a laboratory balance. As a member of society, it is necessary for a biologist now to redefine his social obligations and his functions, particularly in the realm of making judgments about such ethical problems as man's control of his environment or his manipulation of genes to direct further evolutionary development.

As a result of recent discoveries concerning hereditary mechanisms, genetic engineering, by which human traits are made to order, may soon be a reality. As desirable as it may seem to be, such an accomplishment would entail many value judgments. Who would decide, for example, which traits should be selected for change? In cases of genetic deficiencies and disease, the desirability of the change is obvious, but the possibilities for social misuse are so numerous that they may far outweigh the benefits.

Probably the greatest biological problem of the future, as it is of the present, will be to find ways to curb environmental pollution without interfering with man's constant effort to improve the quality of his life. Many scientists believe that underlying the spectra of pollution is the problem of surplus human population. A rise in population necessitates an increase in the operations of modern industry, the waste products of which increase the pollution of air, water, and soil. The question of how many people the resources of the Earth can support is one of critical importance.

Although the solutions to these and many other problems are yet to be found, they do indicate the need for biologists to work with social scientists and other members of society in order to determine the requirements necessary for maintaining a healthy and productive planet. For although many of man's present and future problems may seem to be essentially social, political, or economic in nature, they have biological ramifications that could affect the very existence of life itself.

What is the author's purpose in this passage?