常见的专四英语语法难题
专四英语词汇题重复考的可能性比较小，但是某些语法项目却经常换件马甲重复出现，下面把专四考试中出现频率最高、又比较难的语法题给大家拎出来，引起大家的注意。
1. My uncle is quite worn out from years of hard work. He is no longer the man ___ he was fifteen years ago. (2011/51)
A. Which B. whom C. who D. that
解析：本题考察定语从句的用法。关系代词在定语从句中做表语时，无论指认还是指物，都只能用that，不用which，且that也可以省略。故选D。再如：
China is not the country (that) it was. 中国不是从前的那个国家。
Mary is no longer the girl (that) she used to be. 玛丽不是过去的那个女孩了。
2. It is not so much the language ___ the cultural background that makes the book difficult to understand. (2011/57)
A. as B. nor C. but D. like
解析：本题答案是A。本题考察短语not so much A as B，它的意思是“与其说是A，倒不如说是B”，例如：
He is not so much a writer as a reporter. 他与其说是个作家、不如说是个记者。
The boy is not so much slow as careless in learning． 与其说那男孩学东西迟钝，倒不如说他学习粗心。
The oceans do not so much divide the world as unite it. 与其说海洋分开了世界，不如说海洋把世界联系在一起。
3. Fool ____ Jerry is, he could not have done such a thing. (2010/55)
A. who B. as C. like D. that
解析：本题答案是B。在英语中，adj / adv / n / vi + as + 主语 + 谓语，表示“尽管 ---”，相当于though 或者although引导的让步状语从句。例如：
Young as he is, he is able.他虽然年轻，却很能干。
Strange as it may sound, it is true. 尽管听起来奇怪，但千真万确。
Child as he is, he does a lot to support the family. 尽管他是个孩子，却已经帮着持家。（名词不带冠词）
Much as l like you I couldn’t live with you. 我尽管很喜欢你，却不能和你一起生活。
Try as he would, he couldn’t open the door. 他试过多次，却仍打不开门。
4. _____ the boss says, it is unreasonable to ask me to work overtime without pay. (2009/54)
A. Whatever B. Whenever C. Whichever D. However
解析：本题答案是A。whatever 不论，不管，后面跟名词或一个名词性从句，表示让步。如：
The building must be saved, whatever the cost. 不论花多少钱，这幢建筑物必须保存。
Whatever I suggest, he always disagrees. 不管我提什么建议，他都不同意。
相比之下，however adv不管，无论，后面跟一个形容词或副词，表示让步。如：
She has the window open, however cold it is outside. 不管外面多冷，她都开着窗户。
We’ll have to finish the job, however long it takes. 无论花多长时间，我们都得把这些工作做完。
5. John is ____ hardworking than his sister, but he failed in the exam.
A. no less B. no more C. not less D. no so (1998/41)
解析：本题正确答案是A。no less --- than ---。 意思是“和 --- 一样都”，连词than的前后都是肯定的意思。例如：
She is no less beautiful than her sister. 她的美不逊于他的妹妹。
He is no less active than he used to be. 他和以前一样活跃。
与之相反的一个短语是no more --- than，意思是“和 --- 一样不”，连词than前后都是否定的意思。例如：
Jenny is no more beautiful than Mary.詹妮和玛丽一样不漂亮。
