课件43张PPT。虚拟语气
SubjunctiveimpossibleIf I were a bird, I would fly in the sky.No way!If I went to school without any exam, I would be happy.If I had enough money, I would buy an expensive car.虚拟语气虚拟语气表示一种不太可能实现的愿望
或是与客观现实违背的假设。 主要用于if引导的条件句中,也可以用于主语从句, 表语从句, 宾语从句等中。If I were a bird, I would fly in the sky.(现在)If I went to school without any exam, I would be happy.If I had enough money, I would buy an expensive car.1.虚拟语气在if条件从句中分三种情况:一:虚拟语气在条件状语从句中的运用If I won the lottery, I would buy an expensive car. If I had a lot of money now,
I would travel around the world.If it were fine now,I would go shopping.1).If they ______ (be) here, they __________
(take) your advice.
2).If the world-war _____ (burst) out again,
what _____________ (happen) to our people on earth?
3).If the policeman ________ (be not) in that
room, it _______ (be) very dangerous.
4).If I _____ (be) in your position,I __________ (ask) for teacher’s help.werewould takeburstwould happenwere notcould bewerewould askIf I ________ time last night,I
_______________ to see the film
with you .had hadwould have goneIf he more carefully,
he the car
accident yesterday.had driven would not have had 1). If Tom (be) more careful in the
exam, he ______ ___(pass) it already.
2). If you (get) up earlier, you ________
(catch) the first train.
3). If I (meet) you yesterday, we ________
(go) to the concert together.had beenwould have passedhad gotwould have
caughthad metwould
have
gonehe would be on timeIf he got up early tomorrow
morning,PRACTICE 3: Fill in the blanks
a. If there (be) no natural resource any more,we __(make) use of nuclear power .
b. What ___ ______(happen) if you ______ _____(get up) too late tomorrow?
c. If Robots (control) the world some day,there ___(be) no friendship .should beshould makewould happenshould get upwere to controlwould be虚拟语气在if条件从句中分三种情况:虚拟语气
(1). 要是你早来几分钟的话,你就能见到他了。(过去)(2). 明天要是天气好的话,我来看你。(将来)(3). 假如我是你的话,我会马上走。(与现在)If you had come a few minutes earlier, you would
have met him.If it were sunny tomorrow, I would come to see you.If I were you, I would go at once2.省略 if 的虚拟条件从句
当从句中有 were, had 或 should 时,可省略if 而
把were, had或 should放在句首。
If I were to meet him tomorrow, I should ask him about it.
Were I to meet him tomorrow,…
If he should fail in the experiment this time, he would try again.
Should he fail in the experiment…
B: Had you gone over your test paper carefully before
handing it in,you would have made fewer mistakes.B: Should it rain tomorrow ,we would have to put off
the visit to Beihai park.B: Were I a teacher ,I would not give my students
any homework.If you had asked him yesterday, you would
know what to do now.(过去)(现在)3.主句与从句的动作发生在不同的时间, 这时主句的谓语动词和从句的谓语动词的虚拟语气形式根据不同的时间而定, 这叫做错综时间条件句。如果我早上出门时带了伞, 现在就不会淋湿了.If I had taken umbrella with me when I went
out this morning, I wouldn’t be wet now.如果我是你, 我就不会错过了昨晚的那部电影.
要是他们一大早就离开家的话, 再过半个小时
就到了.
If I were you, I wouldn’t have missed the film.If they had left home early morning, they
would arrive in half an hour.I would do anything for her. (省略了if I could)You might have failed.(省略了if you made less efforts)4.有些句子中, 没有任何表示虚拟语气的词、
短语或句子,但仍要用虚拟语气。这时要么
省略了表示虚拟语气的部分,要么隐含在上
下文中,称为含蓄条件句。(1). otherwise, or 或 but可以表示含蓄条件的词有:(2). with, without, but for
(3). if only这位老人的手不停的颤抖, 否则他现在仍然
在工作.The old man’s hands shook constantly.
Otherwise he would be still be working.1.表示建议(suggest, advise, propose, recommend),要求(demand, request, require, insist), 命令(order, command)等动词以及这些词语的名词后接从句时用should+do, 其中should 可省。二、虚拟语气在在其它从句中的运用 2. 记住:
insist 表示“坚决要求”时,用虚拟形式,即 should + do;
insist 表示“坚称,坚持说”时,用陈述语气,表示事实。
suggest 表示“建议”时,用虚拟形式。
suggest 表示“表明、暗示”时,用陈述语气。1. My idea is that we__________ (begin)the party with a warm welcome to Mr. Black.
2. Their proposal was that we ___________(start) out one hour earlier.
3. His request was that we______________ (help) the old lady with her daily shopping.
4. My advice is that you _________________(not come) back to this place again. (should) begin(should) start(should) help should not comeHe insisted that he was right.老师建议我们课后把黑板擦了。The teacher suggested that we (should) clean the
blackboard after class. He insisted that all of us should be there on time by
any means. 他坚持要我们大家想尽办法按时去那儿。3. It’s necessary /strange/ natural/ important that
从句中的动词要用虚拟, 即(should) + doIt is important that we (should) master a
foreign language.
It is strange that she refuse to come to the
party.
It’s necessary that we should study hard.I wish I were as tall as you.4. wish后接宾语从句表虚拟
1) 现在:用过去式
2) 过去:用过去完成式 (had done)
3) 将来:用情态动词(would / could) + do I wish I _____ what is happening now.
A.know B.knows C.had known D.knew真希望我能年轻十岁。
I wish I were ten years younger.
I feel sick. I wish I ______ so much.
ate B. have eaten
C. had not eaten D. have not eaten她去英国了.要是已经告诉她真相 (truth) 就好了.
She’s gone to England.
I wish ____________________.I had told her the truthYou are so busy! I wish you _____ give him a message for me.
A.will B.would C.would have D.can5. It’s (high/right/the first) time that + 过去时或should
+ doIt was (high/right) time that + had done或should + doIt’s time that you left here.It’s time that we went to bed.6.would rather that现在:
过去:
将来:过去时过去完成时过去时我宁愿你明天来参加我的聚会。I would rather you came to my party tomorrow.我宁愿你没去过那里。I would rather you had not gone there.7.在as if/though从句中, 即表示与现在事实相反,
用过去式; 与过去事实相反用过去完成式 (had
done).She loves the baby as if it were her own son.
I remember the whole thing as if it had happened
yesterday.虚拟语气1.Alan ___ the party if he had gone to London.
A. would have missed B. had missed
C. would miss D. missed
ExercisesAD2.I wish I _____ what is happening now.
A know B knows
C had known D knew虚拟语气3. Tom suggested that Ann ___ the house.
A. sell B. sold
C. shall sell D. would sell
4. I wish this bus ___ to the university.
A. go B. went
C. has gone D. had goneAB虚拟语气6. Simon looks as though he never ___ a square meal(吃得饱), though his parents feed him very well.
A. get B. getting C. got D. should get
7. He is talking so much about America as if he ___ there.
A. had been B. were C. was D. been
8. I ___ you some money, but I hadn’t got any then.
A. would lend B. would have lent
C. could lend D. may have lentCAB虚拟语气9. – Have you ever been to Beijing?
-- No, but I wish I ___.
A. have B. will C. do D. had
10. I don’t think it is the right time that you __.
A. will go B. went C. go D. must go
11. When a pencil is partly in a glass of water, it looks as if it ____. A. breaks?? B. has broken??
C. were broken?? D. had been broken DBC as if
He looks as if he were drunk. as if /as though从句动作与主句动作同时发生:
as if / as though + …过去时
She looks as if she were drunk.
He talks as if he _____ all about it.
A know B knows C knowing D knew
她表现(act)得好象她是老师一样。
She acts as if she were a teacher. 从句动作发生在主句动作之前:
as if / as though +…had done
1.They talked as if they had been friends
for years.
2.He went out as if nothing _____ .
A happen B has happened
C had happened D is happening
3.他看起来很开心,就好象他已经通过了考试。
He looked very happy, as if he had passed
the exam. advise , ask suggest, insist
demand , orderthat + …(should) doTom advised that Jim (should) go.
He insisted that we _____ at once.
A to go B going C go D has gone
老师要求所有学生参加英语一级考试。
The teacher demands that all students
(should )take part in PET 1.It is suggested that
It is ordered that+…(should) doIt is suggested that they (should) have a rest.
I suggested that we ______ .
A to go B going C go D gone
Kate followed their suggestion that she
(should) go to the theatre.小结:had hoped that + 过去完成式
It’s (high) time that sb. + 过去式
As if/though + 过去式
过去完成式
与suggest(ion), order, demand, insist等有关的名词性从句中用 should+原形