If had done wouldcouldshouldmigh t have done did

三个不同时态的虚拟条件句 时态 If从句动词 主句动词 过去 had done would/could/should/migh t have done 现在 did, were would/could/should/migh t do 将来 were to do, should do would/could/should/migh t do

四处信号词 1. without Without my roommate’s remind, I could have been late for the meeting. 2. but for But for Mother’s hard work, we could not live this kind of life now. 3. otherwise I have a good wife, otherwise I could not live this lifestyle. 4. if only I were I college student!

五个从句 （1）It is necessary that the local government should take measures to protect the environment. （2）It was ordered that all the villagers should leave the village at once. (3) It is a pity that he should fail/failed the interview. 牢记记以下形容词、名词与动词： important, natural， a pity , commanded, suggested, advised, demanded, required, recommended

（1）He suggested that everyone should donate five yuan to help the disabled. (advise，suggest, order， command, demand，require, recommend，insist，urge) (2)wish I were a college student now.

Our monitor’s demand is that everyone should work together. (名词：advice, suggestion, tip, order, command, demand, requirement, recommendation)

It is some students’ advice that every student should stop eating snacks in the class.

Isn’t it high time that we stopped playing online games?

省略if 的虚拟条件句, 把were, had, should放在主语前, 用倒装结构, 1. _____(be) it necessary, I might resign. 2. _____(had)you informed me earlier, I would not have signed the contract. 3. ______(if/should) I have time, I would call on her.

I _______(will/would) try every means to help her (if I could. ) He ____(can/could) have got the first prize(if he hadn’t not been nervous. ) If only you _____(can/could) help me carry the heavy box.

“混合”指虚拟条件句中主从句时态不一 致或既有陈述又有虚拟语气的句子或根 据上下文及语境须用虚拟语气。 (1)If I had followed his advice, I ______(study) at a good college now. (2)---You could have come here 15 minutes earlier. ---But I ______(miss) the first train.

“增补”指补充说明其它常用虚拟语气的句 子。 1. The woman treated the poor boy as if he _____(be) his own child. 2. You were absent-minded just now. I would rather you _____(listen) attentively. 3. May you succeed and be happy！

Never等含有否定意义的词位于句首。 seldom, never, hardly, little, not, by no means, under no circumstances, no sooner…than; hardly…when, not only…but also Seldom______I go home; I usually stay at the school. Under no circumstances ______he give in. He is full of courage.

As, though引导的让步状语从句。 ______(小孩) as he is , he is well informed. ______(努力) though he worked, he made little progress. ______(年轻) though the girl is, she is learned.

Only+状语开头的句子。 Only_________(用这种方法 ) can you solve the crime. Only___________(下课 时) are we allowed to go home. Only _____(那时) did I realize I was wrong.

So, neither, nor开头的句子 So lovely _______(the little girl is) that we all like her. You are good at math and so______(he is). I don’t like Jim and neither ______(Tom does)

Here, there, up, down, in, out, now, then, away开头的句子 Here _______(the pen is). Out _________(the disappointed boy ran)

省略if引导的虚拟条件句。 虚拟条件句中有were, had, should时, 可把if省略, 而把were, had, should放 在主语前, 用到装结构, 这种结构主要用 于书面语中. _____(be) it necessary, I might resign. ______ you informed me earlier, I would not have signed the contract.

Such a kindhearted man ______(is he/ he is) that everyone loves him. At the head of the queue was an old woman. Before them ______(be) miles and miles of snow. Southeastern Fujian is Quangang, a newly-founded district. Hanging on the wall was a splendid painting.

_______(read) under the tree ______(be) John, minitor of Class 3. Gone are the days when the Chinese had to use foreign oil. _____(sit/seat) at the back of the classroom_____(be) some tall students. Also present will be a person who thinks up an idea for an advertisement. Deeply moved were the audience.

表达“有”的句型：there be句型及类似 句型there live, there stand, there lie, there seem to be, there happen to be, there is likely to be There is a piece of paper on the desk. There used to be a lot of trees in the mountain.