第 20 讲 第二章·核心语法

第二章 · 虚拟语气

第二章 · 虚拟语气

第二章-虚拟语气

动词的语气

语气分为:陈述语气、祁使语气、虚拟语气。虚拟语气是谓语动词的一种特殊形式,用来表达假设、主观愿望、猜测、建议、可能或空想等非真实情况。

1.条件句中的虚拟语气:条件句有两种,真实条件句和虚拟条件句。混合时间的虚拟语气:条件句中的动作和主句的动作不是同时发生。

虚拟条件句的几种情况:

1.与现在事实相反

If I were you, I would accept his apology.

虚拟语气

特殊词:wish后面的虚拟语气:

“可惜……”、“……就好了”、“悔不该……”、“但愿……”(be不分人称均为were)

I wish I were as slim as you.

I wish I knew the key to the answer.(对现在事实的虚拟,动词用一般过去时。)

2.与过去事实相反

If I had received the passport yesterday, I would start today.

I wish that I had gone to the football match last week.(对过去事实的虚拟,用过去完成时。)

3.与将来事实相反,对将来可能发生的事实的假设

She won’t come tomorrow. But if she should come, I would ask her to ring you.(should,万一。)

He wishes that we would visit the school.(对将来事实的虚拟,动词用情态动词的过去式,如should, could, might +动词原形。)

4.if的省略

省略if的虚拟语气倒装:条件句中含有情态动词、助动词、be或have时,如含有were/should/had,这些词前置。

If it should happen, what would you do?

=Should it happen, what would you do?

If he had recognized me, he would have come over.

=Had he recognized me, he would have come over.

含蓄虚拟条件句:利用介词短语、连词或其他形式委婉地表示虚拟,如without, with, but for(要是有),otherwise,or,but.

Without your help(=If we had not had your help), we could not have succeeded.

虚拟语气在if only(“要是……就好了”)引导的句子中的应用。

If only we knew the telephone number!

would rather与虚拟语气:would rather后接动词原形,但接从句时要用虚拟语气(宁愿,但愿)。

I'd rather he didn't know.

I'd rather you hadn't done it.

虚拟语气用在名词性从句、定语从句和状语从句中,表示命令、建议、愿望、决定等。

主语从句:It was suggested(desired) that he (should) join the club./It is strange/ It is pity

宾语从句:The teacher ordered.( ask,advise,beg,command, insist,propose,request) that all the books (should) be handed in on time.

(注意:当suggest表示“暗示、说明”之意,insist表示“坚持认为,坚持说”之意时,从句不用虚拟,用正常的陈述语气。)

The smile on his face suggested that he was satisfied with life.

表语从句:My suggestion is that the meeting (should) be canceled.

定语从句:在It is (high/about) time that……句型中也用虚拟语气(“该是做……的时候了”)表示早该做而没做。

It is time that we should go home.(不可以省略)

It is high time that we should make a decision.(should不能省略)

状语从句与虚拟语气:as if

It looks as if it was /were going to rain. 天看起来要下雨。

Take it in case it should rain.

【例-单选题】He insisted that we ___early the next morning.

A.start
B.started
C.Would start
D.Had started

网校答案:A

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