语法练习

1.He ___ unwisely, but he was at least trying to do something helpful.

A.may have acted
B.must have acted
C.should act

D.would act

2.Please let us have more time, ___?

A.shall we
B.will you
C.shall not we

D.won't you

3.Even as a girl, ___ to her life, and theater audiences were to be her best teachers.

A.performing by Melissa were
B.it was known that Melissa's performances were
C.knowning that Melissa's performances were

D.Melissa knew that performing was

4.Look at the terrible situation I am in! If only I ___ your advice.

A.follow
B.would follow
C.had followed

D.have followed

5.He narrowly escaped ___.

A.to drown
B.to be drowned
C.being drowned
D.having been drowned

答案详解

1.[A]【解析】may/might/must have done表示从现在的角度对过去情况进行推测。might表示的可能性最小，may的可能性较大，must（一定是）表示的可能性最大，几乎可以肯定。

2.[B]【解析】let us引导的祈使句，附加疑问句应使用will you形式。

3.[D]【解析】本句空处所缺的是主句的主语和谓语部分，主句的主语应该是人。本句中出现的并列连词and，其后的结构应该与前面的结构平行。

4.[C]【解析】if only引导的状语从句用虚拟语气。表示从句动作与主句动作同时发生时，从句用一般过去时；表示从句动作先于主句动作发生时，从句用过去完成时。

5.[C]【解析】escape后接动名词作宾语。根据句意，其后的动名词须用被动形式。