专四考试第四部分是语法词汇题共有三十道题，同学们平时复习专四语法知识的同时可以做做专四全真模拟练习题。

　　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 agaisnt chewing tobacco as a _____ for smoking.

　　A succession B substitute C revival D relief

　　参考答案 1-5BDBCB

　　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