四六级

　　 在 英语六级 考试中，阅读是重点考察内容。今天小编为大家准备了一篇 英语六级阅读模拟练习题 ，快来练习吧！

　　For about three centuries we have been doing science, trying science out, using science for the construction of what we call modern civilization. Every dispensable item of contemporary technology, from canal locks to dial telephones to penicillin, was pieced together from the analysis of data provided by one or another series of scientific experiments. Three hundred years seems a long time for testing a new approach to human inter-living, long enough to set back for critical appraisal of the scientific method, maybe even long enough to vote on whether to go on with it or not. There is an argument. Voices have been raised in protest since the beginning, rising in pitch and violence in the nineteenth century during the early stages of the industrial revolution, summoning urgent crowds into the streets on the issue of nuclear energy. "Give it back," say some of the voices, "It doesn't really work, we've tried it and it doesn't work. Go back three hundred years and start again on something else less chancy for the race of man."

　　The principle discoveries in this century, taking all in all, are the glimpses of the depth of our ignorance of nature. Things that used to seem clear and rational, and matters of absolute certainty-Newtonian mechanics, for example-have slipped through our fingers; and we are left with a new set of gigantic puzzles, cosmic uncertainties, and ambiguities. Someof the laws of physics are amended every few years; some are canceled outright; some undergo revised versions of legislative intent as if they were acts of Congress.

　　Just thirty years ago we call it a biological revolution when the fantastic geometry of the DNA molecule was exposed to public view and the linear language of genetics was decoded. For a while, things seemed simple and clear: the cell was a neat little machine, a mechanical device ready for taking to pieces and reassembling, like a tiny watch. But just in the last few years it has become almost unbelievably complex, filled with strange parts whose functions are beyond today's imagining.

　　It is not just that there is more to do, there is everything to do. What lies ahead, or what can lie ahead if the efforts in basic research are continued, is much more than the conquest of human disease or the improvement of agricultural technology or the cultivation of nutrients in the sea. As we learn more about fundamental processes of living things in general we will learn more about ourselves.

　　52. What CANNOT be inferred from the first paragraph?

　　[A] Scientific experiments in the past three hundred years have produced many valuable items.

　　[B] For three hundred years there have been people holding a hostile attitude toward science.

　　[C] Modern civilization depends on science so man supports scientific progress unanimously.

　　[D] Some people think three hundred years is not long enough to set back for critical appraisal of scientific method.

　　53. The principle discovery in this century shows ________.

　　[A] man has overthrown Newton's laws of physics

　　[B] man has solved a new set of gigantic puzzles

　　[C] man has lost many scientific discoveries

　　[D] man has given up some of the once accepted theories

　　54. Now scientists have found in the past few years ________.

　　[A] the exposure of DNA to the public is unnecessary

　　[B] the tiny cell in DNA is a neat little machine

　　[C] man knows nothing about DNA

　　[D] man has much to learn about DNA

　　55. The writer's main purpose in writing the passage is to say that ________.

　　[A] science is just at its beginning

　　[B] science has greatly improved man's life

　　[C] science has made profound progress

　　[D] science has done too little to human beings

　　56. The writer's attitude towards science is ________.

　　[A] critical [B] approving [C] neutral [D] regretful

　　参考答案：

　　52. C 细节题。由文章第一段最后一句There is an argument可知，人们对科学的看法是有争议的，选项C意思与其相反，故选c。D项干扰性大，对应第一段倒数第二句，表面上看与文章表述意思相反，但文章接下来说There is an argument，由此可知，有的人赞成倒数第二句的观点，有的人反对(即D项的观点)，故排除D。

　　53. D 推断题。由文章第三段最后一句可知，人类对已有理论所采取的做法是修正或摈弃，所以D正确。A、B对应第三段第二句，曲解了文章原意，C文中并未提及，均应排除。

　　54. D 推断题。由文章第四段可知，30年前人们将DNA的发现称为生物革命，刚开始时，人们认为DNA细胞很简单，但随着时间的推移，人们发现它其实极为复杂，由此推断，人们还需要进一步研究，所以D正确。

　　55. A 主旨题。由最后一段尤其是第一句中的there is everything to do可以看出，作者认为关于科学还有很多方面有待于进一步研究、探索，即科学仍处于起步阶段，前面的路还很长很长，所以A正确。

　　56. C 观点态度题。通读全文可知，作者以客观的态度说明了科学的发展状况，并介绍了对待科学的不同观点，综合而言，作者对科学的态度是C(中立的)。A(批评的)，B(赞成的，满意的)，D(遗憾的)均不正确。