Question

The job of a scientist is to find out the truth in the field of science. It is  1. challenging profession. Scientists usually have to do thousands of experiments in order 2.    prove something. Although they are often disappointed 3.    they fail, most of them never give up. My next door neighbour is a scientist. He studies radiation. He 4. always working in his lab, trying to figure out all the mysteries 5. make him puzzled. When I met him the other day, he had just come back 6. work, looking excited. He told me he had had a breakthrough. He sounded so thrilled. Then I noticed that   7. was wearing shoes that did not match. He must have been working too hard to notice! I think it’s good to do a job that you are interested in. 8. you will get bored easily.

Answer

1.a

2.to

3.if/when

4.is

5.that

6.from

7.he

8.otherwise/or

【解析】

试题分析：题目主要考查学生对冠词、介词、代词、连词、时态、定语从句、状语从句、固定搭配等知识的掌握情况。

1. profession一种职业，故填a。

2. order to do sth为了做某事，故填to。

3.

4.always working”可知，这里用的是进行时，根据前一句可知说的是现在的事情，应该用现在进行时，故填is。

5.mysteries，定语从句缺少主语，当先行词是不定代词或被不定代词修饰时，用that引导定语从句，故填that。

6. back from...从......回来，这里指下班回家，故填from。

7.

8.

考点：考查冠词；介词；代词；连词；时态；定语从句；状语从句；固定搭配