语法练习

1.Our civilization cannot be thought of as ___ in a short period of time.
A.to have been created
B.to be created
C.having been created

D.being created

2.I'd just as soon you ___ these important documents with you now.
A.don't take
B.didn't take
C.hadn't take

D.were not taking

3.___ the two, Tom is ___ boy.

A.Of,more intelligent
B.In,more intelligent
C.Of,the more intelligent

D.In,the more intelligent

4.I have dreaded traveling by airplane ___ I read about all those crashes two years ago.

A.until
B.once
C.ever since

D.as soon as

5.A hibernating animal needs hardly any food all through the winter, ___?

A.need it
B.needn't it
C.does it
D.doesn't it

答案详解

1.[C]【解析】as在句中是介词，后面应接名词、代词或相当于名词的短语、从句等，且creat这一动作发生在主语动作之前，因此应使用完成时态。

2.[B]【解析】would（just）as soon意为“宁愿……”，后接省略that的宾语从句，从句中的谓语动词用虚拟语气。本句表示与现在事实相反，因此用一般过去时。

3.[C]【解析】the+比较级+of the two表示两者之间的比较。表示三者或三者以上的比较，应使用最高级。

4.[C]【解析】ever since意为“自从……”。常见的用法为：从句中谓语动词用一般过去时，主句中谓语动词用完成时。

5.[C]【解析】主句中有否定副词hardly，附加疑问句应该为肯定结构。另外，主句中的谓语动词need是实义动词而不是情态动词。