专四考试中，有语言知识一项，一共有20题，其实就是词汇语法题啦。而且不止是语言知识，完形填空也必须用到语法。语法看似简单，而且都是选择题，但是也是失分点，为了让大家保证在这项上不失冤枉分，小编为大家带来专四语法每日一练，今天的专四语法5道题又来啦！

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 also __ 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 

（做完后才能看答案哦！）

1．选A
① in 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 ① extract 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。