(共25张PPT)
新教材高中英语人教版
语法课 虚拟条件句
虚拟语气 If从句 主句
现在
过去
将来
过去式 (were) would do
had done would have done
虚拟条件句
What would you do if you won the lottery
If I won the lottery, I would…
If I _____ (win) the lottery, I _______ (buy)an expensive car now.
won would buy
If I ____ (have) a lot of money , I _____
( buy ) a villa now.
had would
If it _____ fine now, I _______ go shopping.
were would
If he __________(drive) more carefully, he _________________(have) the car accident yesterday.
had driven
would not have had
If I ________(learn) how to swim,
I __________________ (be trapped) in this island.
had learnt
would not have been trapped
虚拟语气 If从句 主句
现在
过去
将来
过去式 (were) would do
had done would have done
过去式
were to do would do
Should do
虚拟条件句
与将来相反:
If you ____(succeed) , everything ____ all right.
①If you ________, everything would be all right.
②If you ________________, everything would
be all right.
③If you _________________, everything would be
all right.
succeeded
should succeed
were to succeed
一 、若If 句中有were, had ,should(万一) 时,if 可省略把以上词置于主语之前,变成倒装句。
1)If I were you , I would study hard.
2) If I had known your address , I would have visited you .
3) If it should rain tomorrow , I would not go there .
注意not的位置:Had it not been for your help , I would have failed.
Were I you , I would …
Had I known your address , I …..
Should it rain tomorrow , I …..
二含蓄条件句(常用without / but for(若不是) ; or / otherwise(否则) / but / with来代替if从句。
1. What would you do with a million dollars
2. Without / But for your help,
I ________________________ (fail ).
3. I ______ busy then, or / otherwise I___________________ (help) you .
4.I________________ (help ) you , but I _______busy then.
would have failed.
was
would have helped
would have helped
was
三.错综条件句:
1. If I had taken your advice just now, I __________ ( be)better now.
2. If you____________ (study) hard before ,
you would be a college student now.
would be
had studied
If the staff ________ (be) more careful,
the mall ________________ (be) on fire now.
had been
would not be
Exercises:
If I _______ (have) much money , I ______ travel around the world now.
If I ______ you , I ______ study much harder now.
If you_____________ (be) more careful in the exam , you _____________ (pass) it easily.
If it_____________________________ (rain ) tomorrow , we ________________(not go ) there.
5. But for / without your help , I ____________ (not finish )
the work on time.
6. I _____ (be ) caught in the traffic , or / otherwise I
_____________(get ) there earlier.
7. _____ he see me , he would know me .
8. ____ it not been for the rain , we would have gone there.
had would
were would
had been more
would have passed
should / were to rain / rained
would not have finished
was
would have got
should
Had
would not go
虚拟语气
1. 虚拟条件句 (三规范 / 三特殊)
2. wish / if only 但愿,如果…就好了
as if=as though 仿佛,好像
would rather that…宁愿
It’s (high) time that… (早)该到了…的时候了
3.表建议(suggest / recommend /advise /propose),要求(demand /require /request /insist /urge /desire),命令(command / order)的词的宾语从句及形式主语的句型
I wish / if only(要是...就好了) / as if=as though 仿佛
一般过去时(were) (与现在相反) 好像
过去完成时 (与过去相反)
情态动词+动词原形 (与将来相反)
I wish I had a million dollars now .
I wish I had been there before .
I wish I could go there with you tomorrow.
He talked as if he____ an American.
He speaks English well as if he _________ to
American before.
He talked so excited as if he________ in the sky like a bird the next day.
{
were
had been
would fly
I wish I were as tall as you.
If only every day were my birthday!
I wish/wished I hadn’t eaten so much watermelon.
(2) 表示对过去情况的虚拟:从句动词常用“had+过去分词”。
I wish it would rain tomorrow.
二、表建议(suggest / recommend /advise /propose),要求(demand /require /request /insist /urge /desire),命令(command / order)的词的宾语从句及形式主语的句型用(should )do,should表应该或竟然。
但是要注意以下特殊情况:
1. His pale face suggested he____ ill and we suggested he ______ (go ) to hospital.
2. He insisted I ____ wrong and insisted I _______ (apologize) to him.
3.It is a pity that you( should )be so careless,
4.It is important that we (should) study English well.
was
go
was apologize
三.Would rather+主语+did/were(对现在或将来的愿望)
Would rather+主语+had done(对过去的愿望)
I would rather you ______ (come) tomorrow.
I would rather you _________ (not tell ) me the truth yesterday.
四、It’s (high/about) time+ that+主语 did/should do
should 不能省略
It’s time we went to school.
It’s time we should go to school.
=It’s time for us to go to school.
came
had not told
Exercise:
1.It is necessary that he______ (go ) there at once.
2. Their suggestion is that the injured______ (send) to the hospital at once.
3. If only we__________ (know) about the danger.
4. If he________________ (warn) , he_______________ (take) the food then.
5. He always acts as if he_____ ( know) everything.
6. The law requires that everyone________ ( have) his car checked once a month.
7. But for the fog , we________ (reach ) our school.
8. It is time I ____________ (decide) something.
go
send
had known
had been warned would have taken
knew
should
would have reached
decided / should decide
9. Should it rain tomorrow , we ________ (go ) there.
10. It was demanded that the play______ ( put) on again.
11. I wish I _______( know) what is wrong with my car.
12. I would rather you ______ (stay) at home tonight.
13. ________ I you , I would work harder.
14. They would have arrived on time, but their flight _____________ (delay).
would go
be put
knew
stayed
Were
was delayed