2012大学英语四级词汇练习模拟题30

1. Great as Newton was， many of his ideas _C_ today and are being modified by the work of scientists of our time.

　　A are to challenge B may be challenged C have been challenged D are challenging

　　as表示“尽管”时引导从句，从句中的表语可以放在引导词之前构成部分倒装。

2. Please be careful when you are drinking coffee in case you _D_ the new carpet.

　　A crash B pollute C spot D stain

　　pollute vt. 污染; spot n. 地点，场所，斑点，污点;v. 使…上有斑点、污点。

　　spotted dog 斑点狗。 stain v. 弄脏，玷污，染色。

3. As _B_ announced in today’s papers， the Shanghai Export Commodities Fair is also open on Sundays.

　　A being B is C to be D been

　　注意两个非限定性定语从句的引导词：as， which。

　　which在做非限定性定语从句引导词时有两个特点：

　　1 which前要有逗号与前面句子分开; 2 which引导非限定性定语从句指的是前面整句话的内容。

　　只要引导非限定性定语从句as和which都指一句话内容，区别在于which只能放在它所指那句话的后面，而as可以在前面也可以在后面。

4. You see the lightning _A_ it happens， but you hear the thunder later.

　　A the instant B for an instant C on the instant D in an instant

　　the instant=as soon as 一…就…转自:考试网 - [Examw.Com]

5. The manager lost his _B_ just because his secretary was ten minutes late.

　　A mood B temper C mind D passion

　　lose one’s temper 发脾气。