新视野大学英语第四册第四单元quiz

better than conventionally-grown foods are often ________. A. careless B. mistaken C. mistaking D. wealthy

100. What is the author's attitude toward the claims made by advocates of health foods?

A. Very enthusiastic. B. Somewhat favorable. C. Neutral. D. Doubtful.

Questions 101 to 105 are based on the same passage or dialog.

For me, scientific knowledge is divided into mathematical sciences, natural sciences or sciences dealing with the natural world, and sciences dealing with mankind. Apart from these sciences is philosophy. In the first place, pure or theoretical knowledge has been sought only for the purpose of understanding. What distinguishes man from animals is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn't be man. The technical aspects or applications of knowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.

But even while enjoying the results of technical progress, he must defend the value of pure knowledge. Knowledge sought directly for its practical applications will have

immediate and foreseeable success, but pure or theoretical knowledge will not. Let me recall a well-known example. If the Greek mathematicians had not applied themselves to the investigation of conic (圆锥形的) sections, keenly and without the least suspicion that it might someday be useful, it would not have been possible centuries later to navigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity,

would eventually lead to modern electrical technology, without which we can scarcely think of contemporary life. Pure knowledge is valuable for its own sake, because the human spirit cannot resign itself to ignorance. But, in addition, it is the foundation for practical results that would not have been reached if this knowledge had not been sought disinterestedly.

101. The most important advances made by mankind come from ________ according to the

passage.

A. practical applications of social sciences B. practical applications of pure knowledge C. sciences dealing with the natural world D. the biological sciences

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102. The author does NOT include among the sciences the study of _________. A. chemistry B. astronomy C. economics D. literature

103. The author points out that the Greeks who studied conic sections ________. A. were mathematicians

B. were interested in navigation

C. were unaware of the practical value of their studies D. worked with electricity

104. The title below that best expresses the ideas of this passage is ________. A. Technical Progress

B. A Little Learning Is a Dangerous Thing C. Man's Distinguishing Characteristics D. The Value of Pure Knowledge

105. Pure knowledge is valuable for its own sake because ________. A. it is sought only for the purpose of understanding B. it is the foundation for practical results C. people are keen on it

D. people are curious about it

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