1. What CANNOT be inferred from the first paragraph?
Scientific experiments in the past three hundred years have produced many valuable items.
For three hundred years there have been people holding a hostile attitude toward science.
Modern civilization depends on science so man supports scientific progress unanimously.
Some people think three hundred years is not long enough to set back for critical appraisal of scientific method.
2. The principle discovery in this century shows
man has overthrown Newtons laws of physics
man has solved a new set of gigantic puzzles
man has lost many scientific discoveries
man has given up some of the once accepted theories
3. Now scientists have found in the past few years__________
the exposure of DNA to the public is unnecessary
the tiny cell in DNA is a neat little machine
man knows nothing about DNA
man has much to learn about DNA
4. The writers main purpose in writing the passage is to say that
science is just at its beginning
science has greatly improved mans life
science has made profound progress
science has done too little to human beings
5. The writers attitude towards science is__________
critical
approving
neutral
regretful
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文章精要
本文讨论的是科学的进步与人类的发展。300年来，人类一直在从事各种科学活动，试图揭开科学的神秘面纱，构建现代文明。但是，科学发展到现在还只是个开端，人类在各方面都需要继续探索和努力，只有这样，人类才能不断提高对自然及自身的认识。
1.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，故排除D。
2.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。AB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。
3.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。
4.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。
5.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。A，B，D均不正确。