2）would rather that -
a flood, what should we do?
Shoul there be
3. 名词性从句的虚拟语气。 主要是表示命令、要求、建议的虚拟语气。
1. 宾语从句。常见动词： 2. 一个坚持：insist 3. 两个命令：order, command 4. 三个建议：advise, suggest, propose 5. 五个要求：demand , require, request, desire ask
A. If the captain were B. If the captain had been C. Should the captain be D. If the captain would have been 3. If he ____ me tomorrow, I would let himknow A. should call B. should not have been able C. were not able D. are not able
与现在事实相反
与过去事实相反
5. If it should rain tomorrow, they wouldn’t go for an outing. 6. I think we could do it, if we planned it properly and could borrow the tools. 7. If we were to have three days off , we would enjoy a very happy life.
They requested that we (should) send them to work there.
2、以上动词相应的名词构成的名词性从句（包括主语从句，表语从句和同位语从句）也要使用虚拟语气。从句中 的动词形式一样。
order, advice, suggestion, proposal, demand, request, desire
4、几种特殊结构中虚拟语气的用法；
1）wish + 宾语从句
现在： 过去： 未来：
过去时 (did/were)
过去完成时 (had done) would/could/might+V. should
• I wish I were a bird. (现在) • I wish I hadn’t made such a mistake. (过去) • We wish our parents wouldn’t p
B
1. If I were you, I ____ buy the house right now. 2. A. won’t B. don’t C. wouldn’t D. can’t
2. _____more careful, his ship would not have sunk.
这些动词后面的宾语从句要使用虚拟语气用法。即从句中的动词 使用should + 动词原形，或者将should省略。
• 我们建议Tom去休息一下。 • 他坚决要求我到场。 • 国王命令囚犯明天要实施死刑。 • 他们要求我们派他们去那儿工作。
We suggested that Tom (should) have a rest. He insisted that I (should) be present. The king ordered that the prisoners (should) be killed the next day.
+have done sth
现在
助动词 be用 were 实义动词 do 用 did
would should could might
+ do sth
将来
did / were should do were to do
would should + do sth could Might
1. If I had HIV, I would know because I would feel sick. 2. If I were you, I would give AIDS patient a hug. 3. If I had taken your advice, I wouldn’t have made a mistake. 4. If he had been there, it wouldn’t have happened.
高三虚拟语气经典讲解
1、一般条件句中虚拟语气的用法； 2、条件句中虚拟语气的倒装； 3、名词性从句中虚拟语气的用法； 4、几种特殊结构中虚拟语气用法； 5、虚拟语气与陈述语气的判定。
二、虚拟语气的考点
时间 过去
1、一般条件句中的虚拟语气
If 条件句
主句
had done
would should could might
A
2、条件句中虚拟语气的倒装； 假设条件虚拟倒装。 条件从句中含有
should，were， had 三个助动词并且放在句首时，可以把if省略。 If I were you, I would give it up. Were I you, I would give it up. If I had had time, I would have run round that lake again. Had I had time, I would have run round that lake again. If there should be a flood, what should we do?
• It’s suggested that the plan be carried out. • My demand is that she should come to see me once a week. • All of us are for the advice that the chemical factory should be closed down.