1.We mustn't relax our vigilance___.

A in the least B at least C at most D in the end

2. During the reading lesson, the teacher asked the students to read a few __ from the novel.

A pieces B essays C fragments D extracts

3. But they aslo __ beyond the individual places and consider the earth as a whole.

A pass B reach C go D set

4. How human beings and their environment act __ each other.

A upon B for C as D to

5. The mere fact __ most people believe nuclear war would be madness does not mean that it will not occur.

A what B which C that D why

答案：

1-5ADCAC

1．选A ①in the least 丝毫，一点They don’t in least understand this.

②in the end 最后，终于

In the end they reached their destination before dusk.

③at least至少

④at most至多

2．选D ①extract 做节录，引文，选段

He applied to the publisher for permission to reprint an extract.

②fragment 碎片，断片，（文艺作品等的）残存部分

Liberty and civilization are only fragments of rights wrung from the strong hands of wealth and book learning.

③essay 散文，小品文，随笔，短文，评论

3．选C go beyond超过，超出These issues go beyond the range of language study. 而set和pass，reach不与beyond搭配。

4．选A ①act upon作用于This drug act upon (on) the nerves.

②act as 作为……而作出反应，充当

His job was to act as a link between the government and the press.

③work at从事She had been wondering what she should work at in order to gain her doctorate.

5．选C 从句子结构来看，fact后接的是同位语从句。