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,今天的量少了,但是少而精呦!

1.First published in 1927, the charts remain an _______ source for researchers.
A intelligent B indispensable C inevitable D identical
  
2. Please___ dictionaries when you are not sure of____ word spelling or meaning.
A search B seek C inquire D consult
  
3. It ____ you to at least 50% off the regular price of either frames or lenses when you buy both.  
A credits B entitles C presents D tips
  
4. The __ at the military academy is so rigid that students can hardly bear it.
A confinement B convention C discipline D principle
  
5. Doctors warned against chewing tobacco as a _____ for smoking.
A succession B substitute C revival D relief 

(做完后才能看答案哦!)

1.选B indispensable to do sth, indispensable for sth/ doing sth 不可缺少的,必需的
inevitable 不可避免的,必然发生的; identical同一的,identical to/with sb/sth与……完全相同的
  
2.选D consult with sb 与某人商量,consult查阅。
  
3. 选B entitle sb to sth(用于被动语态) 给某人获得某事物或权利。
  
4. 选C discipline 训练方式,处罚;confinement限制,监禁;convention大会。
  
5.选B substitute 代替, 替用品;revival恢复,苏醒。