[外语类试卷]国家公共英语二级(英语知识运用)练习试卷2及答案与解析.doc
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1、国家公共英语二级(英语知识运用)练习试卷 2及答案与解析 完形填空 1 Villages in developing countries often lack many things. Books, clean water, electricity. These shortages are【 B1】 to 【 B2】 . But a【 B3】 kind of shortage is not easy to see. That is a shortage of 【 B4】 Many villages have no doctors, engineers or scientists. They h
2、ave no one who know【 B5】 to treat unusual medical problems or design a new expert system. Theres a way to ease these problems. They can do it with【 B6】 . In the past few years, computer scientists around the world【 B7】 【 B8】 they call expert systems. An expert system is a special kind of computer pr
3、ogram. In some 【 B9】 , it can take the place of a human expert. For example, an expert in 【 B10】 system can help【 B11】 a sick person. A question appears on the computer screen, “Is the person hot7“ You tell the computer either yes or no. The computer asks【 B12】 questions. “Has the person lost any bl
4、ood?“ Can the person move normally?“ You【 B13】 . The computer continues to ask questions【 B14】 it has enough【 B15】 to make a decision. Then it tells what【 B16】 or other treatment is needed. In this way the expert system takes the place of a【 B17】 . Another kind of expert system takes the place of an
5、 engineer. It 【 B18】 the flow of water in the river. It tells if a dam can be built【 B19】 the river. It also tells【 B20】electricity can be produced. Still other kinds of expert systems help solve problems for farmers and owners of small businesses. 1 【 B1】 ( A) difficult ( B) easy ( C) unable ( D) e
6、asier 2 【 B2】 ( A) see ( B) watch ( C) observe ( D) understand 3 【 B3】 ( A) strange ( B) similar ( C) different ( D) difficult 4 【 B4】 ( A) engineers ( B) computers ( C) doctors ( D) experts 5 【 B5】 ( A) what ( B) how ( C) when ( D) where 6 【 B6】 ( A) computers ( B) scientists ( C) experts ( D) noth
7、ing 7 【 B7】 ( A) have known ( B) have discovered ( C) have found ( D) have developed 8 【 B8】 ( A) who ( B) that ( C) what ( D) when 9 【 B9】 ( A) situations ( B) countries ( C) areas ( D) time 10 【 B10】 ( A) medical ( B) agricultural ( C) computer ( D) industrial 11 【 B11】 ( A) care for ( B) see ( C)
8、 take care ( D) look 12 【 B12】 ( A) much ( B) many ( C) no more ( D) other 13 【 B13】 ( A) hear ( B) listen ( C) know ( D) answer 14 【 B14】 ( A) after ( B) when ( C) until ( D) as 15 【 B15】 ( A) time ( B) message ( C) answer ( D) information 16 【 B16】 ( A) doctor ( B) medicine ( C) service ( D) answe
9、r 17 【 B17】 ( A) hospital ( B) doctor ( C) person ( D) nurse 18 【 B18】 ( A) stops ( B) understands ( C) measures ( D) makes 19 【 B19】 ( A) for ( B) in ( C) on ( D) by 20 【 B20】 ( A) how many ( B) how much ( C) much ( D) many 国家公共英语二级(英语知识运用)练习试卷 2答案与解 析 完形填空 1 【正确答案】 B 【试题解析】 本题选项中的四个词放回原文都不存在语法错误,因
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