【正文】 s questions and that his answer can be confirmed (確認) by other also works to fit the answers he gets to many questions into a large set of ideas about how the world works.The scientist’s knowledge must be is no room for half right or right just half the must be as nearly right as the conditions works under one set of conditions sometimes must work under the same conditions at other the conditions are different，any changes the scientist observes in a demonstration (演示) must be explained by the changes in the is one reason that investigations are important in Einstein，who developed the theory of relativity，arrived at this theory through accuracy of his mathematics was later tested through ’s ideas were shown to be scientist uses many tools for the measurements are used to make mathematical calculations that may test his investigations.1．What makes a scientist according to the passage?A．The tools he uses. B．His ways of learning.C．The ways he uses his tools. D．The different tools.解析：　細節(jié)理解題。由第一段“It is not what the tools that a scientist uses but how he uses these tools that makes him a scientist.”可知。答案：　C2．What can we learn from the passage?A．The scientist’s knowledge is always right under all conditions.B．When the condition changes，the result of the observation may also change.C．Condition makes no difference to scientists.D．There’s no point for ordinary people knowing how to investigate.解析：　細節(jié)理解題。由第二段“If the conditions are different，any changes the scientist observes in a demonstration (演示) must be explained by the changes in the conditions.”可知。答案：　B3．“The scientist，however，goes one step further，...”the author says this to show ________.A．the importance of informationB．the importance of thinkingC．the difference between scientists and ordinary peopleD．the difference between carpenters and people with other jobs解析：　句意理解題。上文提到了如何調查，如何發(fā)現信息對每個人來說都很重要，下文用however引起轉折，說明科學家們應該更進一步，他必須確保問題有合理的答案。故此處的the scientist，however，goes one step further，...用來說明科學家和普通人的不同之處。答案：　C4．A scientific theory should be one that________.A．not only works under one set of conditions sometimes，but also works under the same conditions at other timesB．leaves no room for improvementC．does not allow any change even under different conditionsD．can be used for many purposes解析：　細節(jié)理解題。由“What works under one set of conditions sometimes must work under the same conditions at other times.”可知答案。答案：　A5．What is the main idea of the passage?A．Scientists are different from ordinary people.B．The theory of relativity.C．Exactness is the center of science.D．Exactness and way of using tools are the keys to the making of a scientist.解析：　主旨大意題。本文第一句“What makes a person a scientist？”提出了文章的主題，第一段論述“how a scientist uses these tools makes him a scientist”，第二段論述“The scientist’s knowledge must be exact”，故D正確。其余各項只是文章中的細節(jié)。答案：　D。