资源简介

(共26张PPT)
单词是基础；语法是主线；记忆和练习是提高英语的唯一方法。
虚拟语气
一、英语中的四大语气
一、英语中的四大语气
1、陈述语气
2、疑问语气
3、祈使语气
4、虚拟语气
I like apples. (肯定)
陈述
疑问
What’s your name Do you like apples
祈使
虚拟
If I were a boy, I think that I’d understand, how it feels to love a girl.
Open the door.
一、英语中的四大语气
一、虚拟语气在非真实条件句中的运用
A
后悔药
对过去的虚拟
B
白日梦
对现在的
虚拟
C
妄想症
对将来的
虚拟
If she had worked hard , she would have gone to QingHua University .
后悔药—对过去事实的虚拟—归纳谓语:
从句谓语为_________,
主语谓语动词为__________
had done
would/could/should/might+ have done
Long time ago, a farmer saved a snake. But later, the farmer was bitten by the snake and died.
The Farmer And The Snake农夫与蛇
What would have happened if the farmer hadn’t seen the snake
If the farmer ___________(not see) the snake, he _________________ (not put) it under his coat. If he __________ (not put)it under his coat ,the snake ___________________ (not bite)him.If the snake____________ (not bite)him,he __________________(not die).
hadn’t seen
wouldn’t have put
hadn’t put
wouldn’t have bitten
hadn’t bitten
wouldn’t have died.
与过去事实相反的虚拟语气：
白日梦—对现在事实的虚拟—归纳谓语:
从句谓语为_________,
主语谓语动词为__________
did (be-were)
would/could/should/might+do
If I were headmaster, I would make your holiday longer.
If I had one billion , I would give you one million.
如果我是一名亿万富翁，我会建一座图书馆。如果我有足够的钱，我为每一位学生提供免费的三餐。如果我是超人，我会保卫世界和平。
If I ______ a billionaire, I _____ build a library. If I _____ enough money, I ___________ (supply) free meals to the students. If I ______ a superman, I ______ keep the whole world peace.
were
would
had
would supply
were
would
If you
married
were to marry
should marry
me tomorrow,
I would get the moon for you.r.
妄想症—对将来事实的虚拟—归纳谓语:
从句谓语为:
主语谓语动词为:
1.did (be-were)
2.were to do
3.should do
would/could/should/might+do
should give/were to give/gave
would tell
had to
would be
如果上天能够给我一个再来一次的机会，
我会对那个女孩子说三个字：我爱你。
如果非要在这份爱上加上一个期限，我希望是--一万年!
If the God _____________________________(give) me another chance，I____________ (tell) the girl three words, “ I love you.” If I ______(have to) set a time limit to our love, it___________ (be)10,000 years!
情况 if从句 主句
与现在事实相反 动词过去式（be动词用were） would/could/should/might+动词原形
与过去事实相反 had+过去分词
would/could/should/might+动词原形
与将来事实相反 动词过去式
would/could/should/might+动词原形
should+动词原形 were to+动词原形 一、虚拟条件句
2.错综时间条件句
错综时间条件句，又叫混合条件句。主句和从句的动作不是发生在同一时间，其动词形式要根据时间而定。
If I were you, I wouldn’t have missed the film last night.
(现在—过去)
If he had followed the doctor’s advice, he would recover already. (过去—现在)
If Mary helped Tom do the work today, it would be finished tomorrow afternoon. (现在—将来)
2、错综时间条件句→看各自的时态
语法填空.
If we ___________ (catch) the flight yesterday, we would be enjoying our holiday on the beach now.
had caught
易错点
3. 虚拟条件句的省略与倒装
If条件句中若含有谓语动词were, had, should时，可以把if省略，把were, had, should移至主语前，构成倒装结构。
_____it not been for your generous help, we couldn’t have finished the project punctually.
Had
Were she here, she would agree with us.
Should he agree to go there, we would send him there.
4. 含蓄条件句
有时虚拟的条件并不是直接通过条件句来表示，而是通过一些词或短语体现出来，如without, but for, otherwise, or, but等，甚至暗含在上下文中，我们称之为“含蓄条件句”。
Without air, there would be no living things in the world.
没有空气，世界上就没有生物。
But for your help, we couldn’t have finished the work on time.
要不是你的帮助，我们不可能按时完成这项工作。
I forget where I read the article, or I would show it to you now.
我忘记在哪儿读过这篇文章了，否则现在我会给你看看的。
二、虚拟语气在宾语从句中的运用
72%
95%
63%
（1）wish后的宾语从句中用虚拟语气，表示一种不可能实现的愿望
与现在事实相反 wish+从句主语+动词过去式（be动词用were）
与过去事实相反 wish+从句主语+had+过去分词
与将来情况相反 wish+从句主语+would/could+动词原形
I wish(that) I were a bird and could fly freely in the sky.
I would rather you hadn’t told me about that.
一坚持：insist
二命令：order，command
三建议：suggest，advise，propose，recommend
四要求：require，request，demand，desire，urge
(2)would rather后的宾语从句用一般过去时表示与现在或将来事实相反的事实，用过去完成时表示与过去相反的事实。
(3)表示“建议、命令、要求”等动词后的宾语从句中需用虚拟语气，从句谓语动词用（should+）动词原形。常见的动词有：
三、虚拟语气在主语从句、表语从句和同位语从句中的运用
（1）在 “It is necessary/important/strange/suggested+that从句”中，that引导的主语从句要用虚拟语气，谓语动词用“should+动词原形
It is important/necessary that we (should) think before we decide.
三、虚拟语气在主语从句、表语从句和同位语从句中的运用
(2）在表示 “建议、命令、主张”等名词后面的表语从句和同位语从句中用虚拟语气，谓语动词用“should+动词原形”
His proposal is that we (should)get rid of the bad habits.
六、特殊句型中的虚拟语气
(1)“It is(high/about))time+that从句 ”句型中，从句谓语动词用动词过去式或“should+动词原形(should不能省略)，表示“早该做…；是…的时候了”。
It is time that we took measures to solve the problem.
是我们采取措施解决问题的时候了。
特殊句型中的虚拟语气
(2)if only表示“要是…就好了”，用虚拟语气表示愿望。与现在事实相反用动词过去式；与过去事实相反用“had+过去分词”；与将来事实相反用“woudmight/could/should.+动词原形
If only she had spent more time preparing for the contest!
要是她多花，点儿时间准备这次比赛就好了！
在as if/thoug助引导的表语从句或方式状
语从句中，谓语部分常用虚拟语气形式，与现在事实相反用动词过去式；与过去事实相反用)与将来事实相反用"would/might/could/should+-动词原形
he looks as if nothing had happened to her。
她看起来好像什么事都没发生似的。
She talks about it again and again as though she would never end.
她反复谈论那件事，好像永远谈不完的样子。
特殊句型中的虚拟语气

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