he uses these tools that makes him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigate, how to discover information, is important to everyone. The scientist, however, goes one step further, he must be sure that he has a reasonable answer to his questions and that his answer can be confirmed by other persons. He 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 exact. There is no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the conditions are different, any changes the scientist observes in a demonstration must be explained by the changes in the conditions. This is one reason that investigations are important in science. Albert Einstein, who developed the Theory of Relativity, arrived at this theory through mathematics. The accuracy of his mathematics was later tested through investigations, and Einstein’s ideas were shown to be correct. A scientist uses many tools for measurements. Then the measurements are used to make mathematical calculations that may test his investigations. 11.What makes a scientist according to the passage? ________ A.The tools he uses.
B.The way he uses his tools. C.His ways of learning. D.The various tools he uses. 答案：B
12.The underlined part in the passage shows_______. A.the importance of information B.the importance of thinking
C.the difference between scientists and ordinary people D.the difference between carpenters and people with other jobs 答案：C
13.A sound scientific theory should be one that _________.
A.works not only under one set of conditions at one time, but also under the same conditions at other times
B.does not allow any changes even under different conditions C.can be used for many purposes D.leaves no room for improvement 答案：A
14.The author quotes the case of Albert Einstein to illustrate __________.
A.that measurements are keys to success in science B.that accuracy of mathematics
C.that investigations are important in science
D.that the mathematical calculations may test his investigations 答案：C
15.What is the main idea of the passage? ________ A.The theory of relativity. B.Exactness is the core of science.
C.Scientists are different from ordinary people.
D.Exactness and ways of using tools are the keys to the making of a scientist. 答案：D 三、词汇与语法
16.When Laura finally arrived she apologized _______ so late. A.for to come B.that she was coming C.for coming D.to come 答案：C
17.Samuel Clemens, ________ as Mark Twain, was one of the most famous American writers. A.to know B.to be known C.known D.knowing
答案：C
18.She is not only my classmate ________ also my good friend. A.or B.but C.and D.too 答案：B
19.Tom is so talkative. I'm sure you'll soon get tired _______ him. A.of B.with C.at D.on 答案：A
20.He _______ lives in the house where he was born. A.already B.yet C.still D.ever 答案：C 四、完型填空
Susan Cleveland is the young president of a candy company in the city of Chicago.( 苏珊克利夫兰是芝加哥市里一家糖果公司的年轻总
裁。) Her father began the company in the 1960's. He died three years ago. Now, the company belongs to Susan.
Susan, however, did not have any jobs before becoming head of the company. She just finished the college. The employees became even more concerned during Susan's first months on the job. Mr. Cleveland had been a __21__ leader. But Susan permitted many employees to make their own __22__. One employee said, \told us what to do. He kept people on a short leash. But the company did well. What does a \？A leash is a kind of rope. We use a leash to walk our pet dogs. The leash keeps the dog from __23__ away or getting into trouble.
Keeping a person on a short leash means keeping him or her under close control. The person can't make many decisions for himself or herself. Ms. Cleveland does not keep her workers on a short leash. __24__, she encourages them to get better ways to do business. For example, her secretary proposed an idea. She said the company should offer a sum of money as a prize to the best student in the high school near the factory. The winner could use the prize money to study at a university. Mr. Cleveland appreciated the idea. After the prize was announced, people who lived in the area of the factory began to buy __25__ of the company's candy. Local newspapers wrote about the competition. Business improved.
2019年大学英语B统考题网考真题两份合集附全答案
