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你会正确使用虚拟语气的倒装形式吗

2010-12-08来源:和谐英语

你会正确使用虚拟语气的倒装形式吗

 

请看典型考题:

__________ your address,I would have written to you.

A. Did I know                                        B. Were I to know

C. Had I known                                      D. If I should know

此题应选 C。这是虚拟语气的倒装形式。当虚拟条件句中含有 were,had,should,could等动词时,可以将if省略,然后将 were,had,should,could 等词移至句首:

1. If he should fail,he would kill himself.

→Should he fail,he would kill himself.

万一失败,他就会自杀。

2. If I were you,I would do it at once.

→Were I you,I would do it at once.

假若我是你,我就会马上做。

3. If I could do it,I would.

→Could I do it,I would.

要是我能做此事,我一定会做。

4. If he had seen you yesterday,he would haveasked you about it.

→Had he seen you yesterday,he would haveasked you about it.

他昨天要是看到了你,他就会问你这事了。

顺便说一句,以上移至句首的 had不一定是助动词,如果是实义动词也可倒装:

If he had money,he would buy a car.

→Had he money,he would buy a car.

他要是有钱,他就会买一辆小车。