2025届高考英语专项复习 虚拟语气 课件（共74页）
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| 名称 | 2025届高考英语专项复习 虚拟语气 课件（共74页） |  | |
| 格式 | pptx | ||
| 文件大小 | 6.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-10-02 16:25:11 | ||
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(共74张PPT)
虚拟语气
CONTENTS
非真实条件句
01
含蓄条件句
02
名词性从句用法
03
状语从句用法
习题训练
04
其他句型用法
05
06
01
非真实条件句
陈述语气 (Indicative): 用于陈述事实、描述现实情况。
Mike comes from Beijing.
祈使语气 (Imperative): 用于表示请求、建议、命令等。
Please take good care of the old.
疑问语气 (Interrogative Mood):用于提问和寻求信息。
Are you coming to the party
What is 虚拟语气？
虚拟语气 (Subjunctive Mood):用于表示愿望、建议、假设等虚拟情况。
If I were you, I would take the job.
对比：下面句子有什么区别？
If you raise your ideas at the meeting, I will support you.
真实条件句
条件状语从句
If I were a bird, I would like to enjoy the blue sky.
非真实条件句
虚拟语气
探索发现
实现的可能性≤50%时，
在英语中要用虚拟语气。
一、虚拟语气在非真实条件句及主句中的用法
If I were you, I would go with him to the concert.
If you were a panda, everybody would love you.
If we were billionaires, we would/could buy anything we like now.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设现在情况 did（be动词用were） should/would/could/might do
一、虚拟语气在非真实条件句及主句中的用法
If I had known he was sick, I wouldn't have asked him to do that.
If he had had her number, he would have called her.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设过去情况 had done should/would/could/might have done
一、虚拟语气在非真实条件句及主句中的用法
If you should get/got/were to get a full score tomorrow, I would give you a billion dollars.
If I should ask/asked/were to ask him, he might help me.
If he should turn up/were to turn up/turned up tomorrow, I would marry him.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设将来情况 did（be动词用were）/should do/were to do should/would/could/might do
语法秘籍
时态 构成 虚拟条件从句
与现在事实相反 If + 主语 + did
(be用 were)
与过去事实相反 If + 主语 + had done
与将来情况相反 If + 主语 + did (be用 were)
If + 主语 + were to do
If + 主语 + should do
主 句
主语 + would/should/could/might + do
主语 + would/should/could/might + have done
主语 + would/should/could/might + do
真题派送
They might have found a better hotel if they ______ a few more kilometers.
01
drove
would drive
were to drive
had driven
答案：D
解析：考查虚拟语气。句意：如果他们多开几公里的话，他们也许会找到一个更好的旅馆。由“They might have found a better hotel”可知，该句是表示对过去的虚拟。if they____ a few more kilometers是条件句部分，表示对过去的虚拟，条件句部分要用过去完成时态，故D选项正确。
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真题派送
-Sorry, Mum! I failed the job interview again.
-Oh, it's too bad. You ______ have made full preparations.
02
must
can
should
would
答案：C
解析：考查虚拟语气。句意：一很抱歉， 妈妈，我的面试又失败了。一噢，真是太糟糕了，你本应该做好充分准备的。should have done本应该做但是没有做。
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真题派送
We ______ back in the hotel now if you didn’t lose the map.
03
are
were
will be
would be
答案：D
解析：考查虚拟语气。句意：如果你不丢失地图，我们就已经到旅馆了。根据条件状语从句中“if we didn’t lose the map”可知，主从句都是对现在情况的假设，所以选用D。
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二、虚拟语气在错综时间条件句中的用法
从句表示对过去情况的假设，主句表示对现在情况的假设。
If they had ever cared more about the child, he wouldn’t let them down now.
二、虚拟语气在错综时间条件句中的用法
从句表示对过去情况的假设，主句表示对将来情况的假设。
If they had left home in the early morning, they would arrive in half an hour.
二、虚拟语气在错综时间条件句中的用法
从句表示对现在情况假设，主句表示对过去情况的假设。
If I were you, I would have gone to the cinema last night.
二、虚拟语气在错综时间条件句中的用法
从句表示对现在情况假设，主句表示对将来情况的假设。
If you hesitated at this moment, you might regret it in the future.
二、虚拟语气在错综时间条件句中的用法
Note:
当从句表示的动作或行为和主句表示的动作或行为所发生的时间不一致时，这种句子被称为“错综时间条件句”。
在这种句子中，动词的形式需要根据它所表示的时间作出相应的调整。
考试时候，看时间状语判断用表格的哪一项
1. If the United States had built more homes for poor people in 1995, the housing problems now in some parts of the country so serious.
A. wouldn't be B. wouldn't have been
C. will not be D. would have not been
2.If the weather had been more favorable, the crops still better.
A. will be growing B. are growing
C. would have been growing D. would be growing
A
D
3. If you that late movie last night, you wouldn't be sleepy.
A. haven't watched B.didn't watched
C.hadn't watched D. wouldn't have watched
4. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown.
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fall
C
B
5. If he hadn’t stood under the ladder to catch you when you fell, you ____here now.
A. wouldn’t be smiling B. won’t smile
C. couldn’t have smiled D. didn’t smile
6. If it had rained last night, it_____ very cold today.
A. is B. will be C. were D. might be
7.If he had spent more time practicing speaking English before, he________ able to speak it much better now.
A. will be B. would be C. had been D. would have been
A
D
B
三、虚拟语气在省略if的非真实条件句的用法
如果条件从句中包含有were, had, should，有时可把if省略掉，
把were, had, should放在主语前。
If you had come earlier, you would have met him.
→Had you come earlier, you would have met him.
If it weren't for the rain, I would be going hiking now.
→Were it not for the rain，I would be going hiking now.
If he should ignore your pain, you should break up with him.
→Should he ignore your pain, you should break up with him.
翻译下面句子：
1.要是明天是星期日，我们就能去长城了。
Were it Sunday tomorrow, we should go to the Great Wall.
2.要是我知道安排可能会省去一些麻烦。
Had I known the schedule, it might have saved me some trouble.
3.如果明天下雨，航班就有可能被推迟。
Should it rain tomorrow, the flight might be put off.
4.我要是有时间的话，我就去看电影了。
Had I had time, I would have gone to the movies.
翻译下面句子：
5. 我要是早点知道这个消息，我就会去参加了。
Had I known this news earlier, I would have gone to participate.
6. 如果我是你的话，我就会接受这个挑战。
Were I you, I would accept this challenge.
7. 如果他万一改变主意的话，我们就会取消计划。
Should he change his mind, we would cancel the plan.
8.如果他昨天在这里的话，他就会帮助我们解决问题了。
Were he here yesterday, he would have helped us solve the problem.
Note: ①若省略if的非真实条件句为否定句，否定词not应置于主语之后，不能与were，had，should一起提前。
Were I not so busy, I would go shopping with you.
②if it were not for相当于were it not for，表示对现在情况的假设，“如果没有......”；if it had not been for 相当于had it not been for，表示对过去情况的假设，“如果当时没有......”。
If it were not for the policeman’s help, his cellphone would become lost.
If it had not been for the war, these people would not have been homeless.
02
含蓄条件句
What is 含蓄条件句？
在有些句子中，表示假设的条件也可以隐含在介短语或连词中，这一点句子叫做含蓄条件句。
含蓄条件句的常见表示方式 谓语动词的形式
but for，without, with, under引出介词短语表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
or, otherwise，but等连词表示虚拟条件 1. but for, without, with, under等引出的介词短语表示虚拟。
Without air, there would be no living things.
With favorable winds, we might have got there in two days.
We could have done better under more favorable conditions.
But for electricity, there would be no modern industry.
含蓄条件句的常见表示方式 谓语动词的形式
but for，without, with, under引出介词短语表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
2. or, otherwise, but等连词表示虚拟。
I would have given you more help, but I was so busy.
He is not a careful driver, otherwise he wouldn't have had that accident.
He felt very tired yesterday, or he would have attended your ceremony.
含蓄条件句的常见表示方式 谓语动词的形式
or, otherwise，but等连词表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
Note：在某些暗含虚拟的句子中，虚拟条件也可以通过分词短语、名词短语或上下文表现出来。
Born in better times, he would have been a scholar.
A few hours earlier, you might have seen the famouse writer.
Any man in his position would have done like that.
真题派送
What a pity！You missed the sightseeing，or we__________ a good time together.
01
had
will have
had had
would have had
答案：D
解析：考查虚拟语气。句意为：真遗憾！你错过了观光。否则我们在一起会玩得很开心。根据关键词or可知应用虚拟语气，这里表示与过去的事实相反，谓语动词应用would/could/should/might＋have done。
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真题派送
The workers were not better organized， otherwise they________the task in half the time．
02
accomplished
had accomplished
would have accomplished
would accomplish
答案：C
解析：考查虚拟语气。句意：工人们没有很好的组织，否则他们将在一半时间内完成任务．otherwise是虚拟语气的含蓄条件，相当于if the workers had been organized， 根据前句可知本句是对于过去的虚拟，所以主句用情态动词+have done结构．
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真题派送
If I hadn’t been faced with so many barriers, I _____where I am.
03
won’t be
wouldn’t have been
shouldn’t have been
wouldn’t be
答案：D
解析：考查虚拟语气。句意：如果我没有面对那么多的障碍，我现在就不会在这里。分析句子成分可知，此处是错综时间虚拟语气，根据空后where I am可知，此处是与现在事实相反的假设，主句谓语动词应使用would/could/might/should+do。
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真题派送
The workers were not better organized,
otherwise they ______ the task in half the time.
04
accomplished
had accomplished
accomplished
would have accomplished
答案：D
解析：考查虚拟语气。句意:工人们没有被更好的组织起来，否则他们用一半的时间就能完成任务。根据上句the workers were not better organized可知，这是对过去事情的虚拟。与过去事实相反的假设。其句子结构为:从句: If+主语+过去完成时+其他，主句:主语+should ( would, could, might)+现在完成时+其他，故选D。
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真题派送
If we ______ the flight yesterday, we would be enjoying our holiday on the beach.
05
had caught
caught
have caught
would catch
答案：A
解析：考察虚拟语气。句意:如果我们昨天赶上飞机的话， 现在我们正在海滩享受我们的假日了 。根据时间状语yesterday可知， 从句表示与过去事实相反，故用had + v-ed。故选A。
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真题派送
______ not for the support of the teachers, the student could not overcome her difficulty.
06
It were
Were it
It was
Was it
答案：B
解析：在虚拟语气中，be动词只能用were；虚拟条件句省去连词if时，从句主谓部分倒装：Were/Had/Should+主语+谓语动词...
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03
名词性从句用法
一、虚拟语气在主语从句中用法
1.It is +adj. +主语从句
常见的形容词有：important, necessary, urgent, essential, vital, natural, strange, proper 等。
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It is advisable that you (should) listen to others’ advice when making a choice.
It's necessary that we (should) start to do the work right away.
2. It is+n.+主语从句
常见的名词有：advice，command，decision，demand，desire, idea，necessity，order，plan，preference，proposal，recommendation，request，requirement，resolution，suggestion，wish等。
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It was the doctor’s advice tat you (should) give up smoking.
It is John’s suggestion that the boss (should) double the overtime pay.
Note: It is/was a pity/a shame/no wonder/amazing/surprising/astonishing/shocking/strange +that 从句
I am/was sorry/surprised/disappointed...that从句
should不能省略，翻译为“竟然，居然”
It is a pity that Jack should miss the last bus.
It is astonishing that he should finish the work so soon.
I am sorry that the famous chess player should lose the game.
3. It is+过去分词+主语从句
分词：（建议）proposed，suggested，advised，recommended
（请求）demanded，required，requested
（愿望）desired，decided，insisted
（命令）ordered，commanded
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It is requested that students (should) return the books to the library before they are overdue.
It is decided that the government (should) support the public.
二、虚拟语气在宾语从句中用法
1.在一些表示建议、愿望、要求、请求、劝告、意志、欲望、命令、安排、决定等的动词的宾语从句中，要用虚拟语气。
一坚持 insist
两命令 command, order,
三建议 advise, suggest, propose
四要求 demand, ask, desire, urge
She demanded (that) the paper (should) be rewritten.
They proposed (that) all the plans (should) be discussed at the meeting.
二、虚拟语气在宾语从句中用法
Note：suggest 作“建议”解时，用虚拟语气，作“使想起、暗示”解时，用陈述语气。
His silence suggested that he agreed with my decision.他的沉默暗示他赞同我的决定。（暗示）
He suggested that I (should) stick to my decision.他建议我坚持自己的决定。（建议）
二、虚拟语气在宾语从句中用法
Note：insist 作“坚决要求”解时，用虚拟语气，作“坚持认为”解时，用陈述语气。
He insists that doing morning exercises does good to people's health.他坚持认为做早操对健康有益。（强调）
He insists that he (should) do morning exercises every day.他坚持每天都要做早操。（要求）
二、虚拟语气在宾语从句中用法
2.在it作形式宾语的宾语从句的用法。
在believe，consider，feel，think等表示看法的动词后，用it作形式宾语，且宾语补足语为表示建议、重要、必要、紧急等意义的形容词时，宾语从句常用虚拟语气，即从句用should do,should可以省略。
I consider it necessary that we (should) combine theory with practice.
We think it advisable that he (should) think carefully before action.
二、虚拟语气在宾语从句中用法
3. wish宾语从句用法
I wish you had come to my birthday party yesterday.
I wish I were rich.
I wish she would try again.
不同情况 从句谓语
与过去愿望相反 had done
与现在愿望相反 did (be 动词用were)
与将来事实相反 would/could/might+ do
二、虚拟语气在宾语从句中用法
4. 虚拟语气在would rather后接的宾语从句的用法。
would rather，would sooner, might as well, would prefer后的宾语从句用虚拟语气，“宁愿，但愿”。
I would rather you went tomorrow (now).
不同情况 从句谓语
与过去事实相反 had done
与现在事实相反 did（ be 动词一般用 were）
与将来事实相反 三、虚拟语气在表语从句中的用法
1.在表示建议、命令、要求、主张、愿望、计划等名词的表语从句中，用虚拟语气，从句should do, should可以省略。
Our decision is that the school (should) remain closed.
Sophia's idea was that they (should) lock up the house.
My suggestion is that we (should) take the 6:00 train.
Their requirement is that every member (should) attend at least one meeting per year.
三、虚拟语气在表语从句中的用法
2. as if和as though引导表语从句，意为“好像”。
You look as if you didn’t care.
He talks about Rome as though he had been there before.
He behaves as if he owned the place.
不同情况 从句谓语
与过去事实相反 had done
与现在事实相反 did (be动词用were)
与将来事实相反 would/could等 + do
Note:在look，seem，taste，smell后，as if引导的从句中可以用陈述语气。
It looks as if they are in a terrible hurry.
It seems as if we shall have to walk.
The meat tastes as if it has gone bad.
The milk smells as if it is sour.
表示所说情况是事实或实现的可能性较大。
四、虚拟语气在同位语从句中的用法
在表示建议、命令、要求、主张、愿望、计划等名词的同位语从句中，用虚拟语气，从句should do, should可以省略。
He made the suggestion that they (should) carry on their conversation in Japanese.
There have been demands that the prime minster (should) resign.
They expressed the wish that they (should) be given more free time.
The resolution that women (should) be allowed to join the society was carried.
真题派送
It’s strange that he ______ have taken the books without the owner’s permission.
09
would
should
could
might
答案：B
解析：考查虚拟语气。句意:真奇怪，他竟然没有主人的允许就拿走了这些书。在句型"It is important /necessary/ strange/impossible/natural that"中，其中由that引导的主语从句通常用“should+动词原形”这样的虚拟语气，其中的should可以省略。故选B。
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真题派送
People are recycling many things which they ______ away in the past.
10
had thrown
would have thrown
were throwing
will be throwing
答案：B
解析：人们现在正在回收过去会扔掉的东西。这句话的which引导的是定语从句，是一个隐含的虚拟语气，因为in the past相当于If they had been in the past，所以句子用虚拟语气，和过去相反用would have done。所以选B。
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真题派送
Mr. Li required the computer equipment referred ______ used in every classroom.
11
should be
have to be
to be
to being
答案：C
解析：因为在表示“要求”的require, request, ask, demand等动词后的宾语从句的谓语要用“(should+)动词原形”，句中referred to是过去分词短语，作the computer equipment的定语，所以选C。
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真题派送
What the customers ______ from the company is that the goods ______ right to their homes.
12
requested; deliver
demand; be delivered
request; should deliver
demand; delivered to being
答案：B
解析：该句句意为顾客对该公司的要求就是货物要送货上门。【What the customers_____ from the company】是 主语从句，is后面的是表语从句，当名词性从句中涉及到demand等表示”要求“的词时，从句中的谓语动词用虚拟语气，即should+ 动词原形，should常常省略，而从句主语货物和”deliver“应该是被动语态，因此第二个空是be delivered.
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真题派送
The workers were not better organized,
otherwise they ______ the task in half the time.
04
accomplished
had accomplished
accomplished
would have accomplished
答案：D
解析：考查虚拟语气。句意:工人们没有被更好的组织起来，否则他们用一半的时间就能完成任务。根据上句the workers were not better organized可知，这是对过去事情的虚拟。与过去事实相反的假设。其句子结构为:从句: If+主语+过去完成时+其他，主句:主语+should ( would, could, might)+现在完成时+其他，故选D。
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真题派送
If we ______ the flight yesterday, we would be enjoying our holiday on the beach.
05
had caught
caught
have caught
would catch
答案：A
解析：考察虚拟语气。句意:如果我们昨天赶上飞机的话， 现在我们正在海滩享受我们的假日了 。根据时间状语yesterday可知， 从句表示与过去事实相反，故用had + v-ed。故选A。
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真题派送
______ not for the support of the teachers, the student could not overcome her difficulty.
06
It were
Were it
It was
Was it
答案：B
解析：在虚拟语气中，be动词只能用were；虚拟条件句省去连词if时，从句主谓部分倒装：Were/Had/Should+主语+谓语动词...
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真题派送
There is a good social life in the village, and I wish I ______ a second chance to become more involved.
07
had
will have
would have had
have had
答案：A
解析：考查虚拟语气。句意：在这个村里有很好的社交生活，并且我希望我再有机会去更多的参与。本题考查wish引导的宾语从句，表示与现在事实相反的愿望，所以从句用一般过去时。故选A。
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真题派送
It was John who broke the window. Why are you talking to me as if I ______ it
08
had done
will have done
would have had done
have had done
答案：A
解析：题意：John打坏了窗户，为什么跟“我”谈话？好像是“我”打坏了窗户似的。题中broke表明“打坏窗户”发生在“过去”。as if / though 后面的从句用 had done 表示对“过去”的虚拟。故A项正确。
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04
状语从句用法
一、虚拟语气在目的状语从句的用法
1.so that, in order that意为“以便，为了”，引导的目的状语从句常用虚拟语气，从句谓语动词前需要加上情态动词。
I go to bed early so that I can have a good sleep.
I will repeat the address in order that there would not be any mistakes.
2.在lest，for fear that, in case意为“以免，以防，唯恐”，引导的目的状语从句用虚拟语气，谓语动词为should do。
I'm telling you this lest you should doubt my sincerity.
05
其他句型用法
1.It is (high/about) time that sb should do/sb did sth
“该是某人做某事时候了”
=It is (high/about) time for sb to do sth
It is time that I went to pick up my daughter at school.
=It is time for me to go to pick up my daughter at school.
It is high time you should go to work.
=It is high time for you to go to work.
It is about time that we went to school.
=It is about time for us to go to school.
2.if only虚拟语气，意为“要是......就好了”
If only Simon would reply to my e-mails.
If only I had more spare time.
If only I could have seen their faces.
不同情况 感叹句谓语
与过去事实相反的愿望 had done
与现在事实相反的愿望 did (be动词用were)
与将来事实相反的愿望 would/could/might + do
1.He talked as if he ______ all about it.
A. knows B. knew C. had known D. would know
2.If only I ______ more time to study.
A. have B. had C. would have D. should have
3.I would rather you ______ tomorrow.
A. come B. came C. will come D. would come
4.He looked as if he ______ ill for a long time.
A. was B. were C. had been D. would be
5. It is high time that we ______ to protect the environment.
A. take action B. took action C. will take action D. have taken action
C
B
B
C
B
06
习题训练
语法填空
What a pity! You missed the sightseeing, or we ____________ （have) a good time together.
Had the governments and scientists not worked together , AIDS-related deaths ____________________________ (fall) since their highest in 2005.
I wish I ___________ (be) at my sister’s wedding last Tuesday, but I was on a business trip in New York then.
It is time that the government _______ (take) measures to protect the rare birds and animals.
If we ________________ (book) a table earlier, we wouldn't be standing here in a queue.
would have had
wouldn’t have fallen
had been
took
had booked
语法填空
6. -Do you have Betty's phone number
-Yes. Otherwise, I _________________________ (be) able to reach her yesterday.
7. ____________ (be) it not for the support of the teachers, the student could not overcome her difficulty.
8. Ellen is a fantastic dancer. I wish I ________ (dance) as well as her.
9. My mom suggests that we ____________ (eat) out for a change this weekend.
10. Why didn't you tell me about your trouble last week If you ____________ (tell) me, I could have helped.
wouldn't have been
Were
danced
(should) eat
had told
句子改错
The doctor ordered that she stayed in bed for a few days.
I’d rather you will go to the concert with me this evening.
If you had worked hard, you would have been very tired now.
It is high time that we leave for our hometown
01
02
03
04
stay
went
would be
left
stayed → (should) stay。order的宾语从句的谓语用“（should）+ 动词原形”的虚拟结构。
will go → went。would rather后的宾语从句中，用过去时表示现在或将来要做的事情。
would have been → would be。从句说的是过去，所以用过去完成时，而主句指的是现在，即现在的虚拟结果，所以用“would + 动词原形”。
leave → left/should leave。在“It is （high）time that …”句型中，从句的谓语动词一般用过去式或should+动词原形，should不可省。
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句子改错
If only I can speak several foreign languages!
I wish I didn’t do such a foolish thing yesterday.
What would have happened if you didn’t help her
But for your great efforts, the work couldn’t be finished on time.
05
06
07
08
can → could。if only引出的句子要用虚拟语气,谓语动词用一般过去时表示目前的愿望。
didn’t do → hadn’t done。wish后的宾语从句谓语用过去完成时，表示与过去事实相反的愿望。
didn’t help → hadn’t helped。主句用“would / should + have + 过去分词”，表示过去时间的虚拟条件从句要用过去完成时。
couldn’t be → couldn’t have been。句意：要不是你那么努力，工作就不会准时完成了。从but for（要不是）短语中的“great”可知，“你”已经付出了努力，是暗含的条件，所以后面句子相当于虚拟条件句的主句，而且与过去事实相反，应该用couldn’t have been。
More
could
hadn’t done
hadn’t helped
couldn’t have been
句子改错
-Do you have Betty's phone number
-Yes. Otherwise, I ______ (be) able to reach her yesterday.
______ (be) it not for the support of the teachers, the student could not overcome her difficulty.
01
02
wouldn't have been
Were
01.答案：wouldn't have been
解析：根据句意otherwise意思是否则的话，一般引导虚拟语气，结合具体语境可知，是和过去虚拟，所以主句用would have done。句意： ---你有贝蒂的号码吗？
---有，要不然昨天我都联系不上她了．
02. 答案： Were
解析：考查虚拟语气倒装形式．虚拟语气倒装一般有：were…；should…；had…所以此题答案为B，完整的句型为 If it were not for the support…，句意是"要不是老师的支持…"。考生需掌握if引导虚拟倒装的用法，并结合具体语境灵活使用。
句子改错
Ellen is a fantastic dancer. I wish I ______ (dance) as well as her.
My mom suggests that we ______ (eat) out for a change this weekend.
Why didn't you tell me about your trouble last week If you ______ (tell) me, I could have helped.
03
04
05
danced
(should) eat
had told
03.答案：danced
解析：根据谓语动词 is 可确定是对现在情况的假设。wish后跟宾语从句用虚拟语气时，如对现在情况假设，从句中的谓语动词用过去式（be 用 were），所以用过去式．
句意： Ellen是一个极棒的舞者，我希望我能跳得和她一样地好。
点评 ：此题考查wish后跟宾语从句时用虚拟语气的情况．分为三种情况：1．对现在情况的假设：wish+主语+动词过去式（be 用 were）；2．对过去情况的假设：wish+主语+had 过去分词；3．对将来情况的假设：wish+主语+would/could+动词原形．解题时先根据语境或时间副词/短语的提示，确定是对哪种情况的假设，再选用正确的谓语动词形式．
04.答案：(should) eat
解析：考查虚拟语气。题干关键词为suggest，表示建议，其后所接的名词性从句应用“(should＋)动词原形”的虚拟语气。
05.答案：had told
解析:题目考套虚拟语气。根据第一句可知，对过去发生的事情进行虚拟，if条件句的时态应该用过去完成时。
句意：您上周为他系没有查诉我你遇到的度烦 如果你告诉我的话，我就可以帮你了。
Thank you for
watching.
虚拟语气
CONTENTS
非真实条件句
01
含蓄条件句
02
名词性从句用法
03
状语从句用法
习题训练
04
其他句型用法
05
06
01
非真实条件句
陈述语气 (Indicative): 用于陈述事实、描述现实情况。
Mike comes from Beijing.
祈使语气 (Imperative): 用于表示请求、建议、命令等。
Please take good care of the old.
疑问语气 (Interrogative Mood):用于提问和寻求信息。
Are you coming to the party
What is 虚拟语气？
虚拟语气 (Subjunctive Mood):用于表示愿望、建议、假设等虚拟情况。
If I were you, I would take the job.
对比：下面句子有什么区别？
If you raise your ideas at the meeting, I will support you.
真实条件句
条件状语从句
If I were a bird, I would like to enjoy the blue sky.
非真实条件句
虚拟语气
探索发现
实现的可能性≤50%时，
在英语中要用虚拟语气。
一、虚拟语气在非真实条件句及主句中的用法
If I were you, I would go with him to the concert.
If you were a panda, everybody would love you.
If we were billionaires, we would/could buy anything we like now.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设现在情况 did（be动词用were） should/would/could/might do
一、虚拟语气在非真实条件句及主句中的用法
If I had known he was sick, I wouldn't have asked him to do that.
If he had had her number, he would have called her.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设过去情况 had done should/would/could/might have done
一、虚拟语气在非真实条件句及主句中的用法
If you should get/got/were to get a full score tomorrow, I would give you a billion dollars.
If I should ask/asked/were to ask him, he might help me.
If he should turn up/were to turn up/turned up tomorrow, I would marry him.
表示情况 从句谓语动词的形式 主句谓语动词的形式
假设将来情况 did（be动词用were）/should do/were to do should/would/could/might do
语法秘籍
时态 构成 虚拟条件从句
与现在事实相反 If + 主语 + did
(be用 were)
与过去事实相反 If + 主语 + had done
与将来情况相反 If + 主语 + did (be用 were)
If + 主语 + were to do
If + 主语 + should do
主 句
主语 + would/should/could/might + do
主语 + would/should/could/might + have done
主语 + would/should/could/might + do
真题派送
They might have found a better hotel if they ______ a few more kilometers.
01
drove
would drive
were to drive
had driven
答案：D
解析：考查虚拟语气。句意：如果他们多开几公里的话，他们也许会找到一个更好的旅馆。由“They might have found a better hotel”可知，该句是表示对过去的虚拟。if they____ a few more kilometers是条件句部分，表示对过去的虚拟，条件句部分要用过去完成时态，故D选项正确。
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真题派送
-Sorry, Mum! I failed the job interview again.
-Oh, it's too bad. You ______ have made full preparations.
02
must
can
should
would
答案：C
解析：考查虚拟语气。句意：一很抱歉， 妈妈，我的面试又失败了。一噢，真是太糟糕了，你本应该做好充分准备的。should have done本应该做但是没有做。
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真题派送
We ______ back in the hotel now if you didn’t lose the map.
03
are
were
will be
would be
答案：D
解析：考查虚拟语气。句意：如果你不丢失地图，我们就已经到旅馆了。根据条件状语从句中“if we didn’t lose the map”可知，主从句都是对现在情况的假设，所以选用D。
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二、虚拟语气在错综时间条件句中的用法
从句表示对过去情况的假设，主句表示对现在情况的假设。
If they had ever cared more about the child, he wouldn’t let them down now.
二、虚拟语气在错综时间条件句中的用法
从句表示对过去情况的假设，主句表示对将来情况的假设。
If they had left home in the early morning, they would arrive in half an hour.
二、虚拟语气在错综时间条件句中的用法
从句表示对现在情况假设，主句表示对过去情况的假设。
If I were you, I would have gone to the cinema last night.
二、虚拟语气在错综时间条件句中的用法
从句表示对现在情况假设，主句表示对将来情况的假设。
If you hesitated at this moment, you might regret it in the future.
二、虚拟语气在错综时间条件句中的用法
Note:
当从句表示的动作或行为和主句表示的动作或行为所发生的时间不一致时，这种句子被称为“错综时间条件句”。
在这种句子中，动词的形式需要根据它所表示的时间作出相应的调整。
考试时候，看时间状语判断用表格的哪一项
1. If the United States had built more homes for poor people in 1995, the housing problems now in some parts of the country so serious.
A. wouldn't be B. wouldn't have been
C. will not be D. would have not been
2.If the weather had been more favorable, the crops still better.
A. will be growing B. are growing
C. would have been growing D. would be growing
A
D
3. If you that late movie last night, you wouldn't be sleepy.
A. haven't watched B.didn't watched
C.hadn't watched D. wouldn't have watched
4. It is hard for me to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melinda Cox Library in my hometown.
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fall
C
B
5. If he hadn’t stood under the ladder to catch you when you fell, you ____here now.
A. wouldn’t be smiling B. won’t smile
C. couldn’t have smiled D. didn’t smile
6. If it had rained last night, it_____ very cold today.
A. is B. will be C. were D. might be
7.If he had spent more time practicing speaking English before, he________ able to speak it much better now.
A. will be B. would be C. had been D. would have been
A
D
B
三、虚拟语气在省略if的非真实条件句的用法
如果条件从句中包含有were, had, should，有时可把if省略掉，
把were, had, should放在主语前。
If you had come earlier, you would have met him.
→Had you come earlier, you would have met him.
If it weren't for the rain, I would be going hiking now.
→Were it not for the rain，I would be going hiking now.
If he should ignore your pain, you should break up with him.
→Should he ignore your pain, you should break up with him.
翻译下面句子：
1.要是明天是星期日，我们就能去长城了。
Were it Sunday tomorrow, we should go to the Great Wall.
2.要是我知道安排可能会省去一些麻烦。
Had I known the schedule, it might have saved me some trouble.
3.如果明天下雨，航班就有可能被推迟。
Should it rain tomorrow, the flight might be put off.
4.我要是有时间的话，我就去看电影了。
Had I had time, I would have gone to the movies.
翻译下面句子：
5. 我要是早点知道这个消息，我就会去参加了。
Had I known this news earlier, I would have gone to participate.
6. 如果我是你的话，我就会接受这个挑战。
Were I you, I would accept this challenge.
7. 如果他万一改变主意的话，我们就会取消计划。
Should he change his mind, we would cancel the plan.
8.如果他昨天在这里的话，他就会帮助我们解决问题了。
Were he here yesterday, he would have helped us solve the problem.
Note: ①若省略if的非真实条件句为否定句，否定词not应置于主语之后，不能与were，had，should一起提前。
Were I not so busy, I would go shopping with you.
②if it were not for相当于were it not for，表示对现在情况的假设，“如果没有......”；if it had not been for 相当于had it not been for，表示对过去情况的假设，“如果当时没有......”。
If it were not for the policeman’s help, his cellphone would become lost.
If it had not been for the war, these people would not have been homeless.
02
含蓄条件句
What is 含蓄条件句？
在有些句子中，表示假设的条件也可以隐含在介短语或连词中，这一点句子叫做含蓄条件句。
含蓄条件句的常见表示方式 谓语动词的形式
but for，without, with, under引出介词短语表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
or, otherwise，but等连词表示虚拟条件 1. but for, without, with, under等引出的介词短语表示虚拟。
Without air, there would be no living things.
With favorable winds, we might have got there in two days.
We could have done better under more favorable conditions.
But for electricity, there would be no modern industry.
含蓄条件句的常见表示方式 谓语动词的形式
but for，without, with, under引出介词短语表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
2. or, otherwise, but等连词表示虚拟。
I would have given you more help, but I was so busy.
He is not a careful driver, otherwise he wouldn't have had that accident.
He felt very tired yesterday, or he would have attended your ceremony.
含蓄条件句的常见表示方式 谓语动词的形式
or, otherwise，but等连词表示虚拟条件 ①对现在或将来：should/would/could/might do
②对过去：
should/would/could/might have done
Note：在某些暗含虚拟的句子中，虚拟条件也可以通过分词短语、名词短语或上下文表现出来。
Born in better times, he would have been a scholar.
A few hours earlier, you might have seen the famouse writer.
Any man in his position would have done like that.
真题派送
What a pity！You missed the sightseeing，or we__________ a good time together.
01
had
will have
had had
would have had
答案：D
解析：考查虚拟语气。句意为：真遗憾！你错过了观光。否则我们在一起会玩得很开心。根据关键词or可知应用虚拟语气，这里表示与过去的事实相反，谓语动词应用would/could/should/might＋have done。
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真题派送
The workers were not better organized， otherwise they________the task in half the time．
02
accomplished
had accomplished
would have accomplished
would accomplish
答案：C
解析：考查虚拟语气。句意：工人们没有很好的组织，否则他们将在一半时间内完成任务．otherwise是虚拟语气的含蓄条件，相当于if the workers had been organized， 根据前句可知本句是对于过去的虚拟，所以主句用情态动词+have done结构．
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真题派送
If I hadn’t been faced with so many barriers, I _____where I am.
03
won’t be
wouldn’t have been
shouldn’t have been
wouldn’t be
答案：D
解析：考查虚拟语气。句意：如果我没有面对那么多的障碍，我现在就不会在这里。分析句子成分可知，此处是错综时间虚拟语气，根据空后where I am可知，此处是与现在事实相反的假设，主句谓语动词应使用would/could/might/should+do。
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真题派送
The workers were not better organized,
otherwise they ______ the task in half the time.
04
accomplished
had accomplished
accomplished
would have accomplished
答案：D
解析：考查虚拟语气。句意:工人们没有被更好的组织起来，否则他们用一半的时间就能完成任务。根据上句the workers were not better organized可知，这是对过去事情的虚拟。与过去事实相反的假设。其句子结构为:从句: If+主语+过去完成时+其他，主句:主语+should ( would, could, might)+现在完成时+其他，故选D。
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真题派送
If we ______ the flight yesterday, we would be enjoying our holiday on the beach.
05
had caught
caught
have caught
would catch
答案：A
解析：考察虚拟语气。句意:如果我们昨天赶上飞机的话， 现在我们正在海滩享受我们的假日了 。根据时间状语yesterday可知， 从句表示与过去事实相反，故用had + v-ed。故选A。
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真题派送
______ not for the support of the teachers, the student could not overcome her difficulty.
06
It were
Were it
It was
Was it
答案：B
解析：在虚拟语气中，be动词只能用were；虚拟条件句省去连词if时，从句主谓部分倒装：Were/Had/Should+主语+谓语动词...
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03
名词性从句用法
一、虚拟语气在主语从句中用法
1.It is +adj. +主语从句
常见的形容词有：important, necessary, urgent, essential, vital, natural, strange, proper 等。
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It is advisable that you (should) listen to others’ advice when making a choice.
It's necessary that we (should) start to do the work right away.
2. It is+n.+主语从句
常见的名词有：advice，command，decision，demand，desire, idea，necessity，order，plan，preference，proposal，recommendation，request，requirement，resolution，suggestion，wish等。
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It was the doctor’s advice tat you (should) give up smoking.
It is John’s suggestion that the boss (should) double the overtime pay.
Note: It is/was a pity/a shame/no wonder/amazing/surprising/astonishing/shocking/strange +that 从句
I am/was sorry/surprised/disappointed...that从句
should不能省略，翻译为“竟然，居然”
It is a pity that Jack should miss the last bus.
It is astonishing that he should finish the work so soon.
I am sorry that the famous chess player should lose the game.
3. It is+过去分词+主语从句
分词：（建议）proposed，suggested，advised，recommended
（请求）demanded，required，requested
（愿望）desired，decided，insisted
（命令）ordered，commanded
主语从句用should do，should可以省略
表示建议、重要、必要、紧急等意义。
It is requested that students (should) return the books to the library before they are overdue.
It is decided that the government (should) support the public.
二、虚拟语气在宾语从句中用法
1.在一些表示建议、愿望、要求、请求、劝告、意志、欲望、命令、安排、决定等的动词的宾语从句中，要用虚拟语气。
一坚持 insist
两命令 command, order,
三建议 advise, suggest, propose
四要求 demand, ask, desire, urge
She demanded (that) the paper (should) be rewritten.
They proposed (that) all the plans (should) be discussed at the meeting.
二、虚拟语气在宾语从句中用法
Note：suggest 作“建议”解时，用虚拟语气，作“使想起、暗示”解时，用陈述语气。
His silence suggested that he agreed with my decision.他的沉默暗示他赞同我的决定。（暗示）
He suggested that I (should) stick to my decision.他建议我坚持自己的决定。（建议）
二、虚拟语气在宾语从句中用法
Note：insist 作“坚决要求”解时，用虚拟语气，作“坚持认为”解时，用陈述语气。
He insists that doing morning exercises does good to people's health.他坚持认为做早操对健康有益。（强调）
He insists that he (should) do morning exercises every day.他坚持每天都要做早操。（要求）
二、虚拟语气在宾语从句中用法
2.在it作形式宾语的宾语从句的用法。
在believe，consider，feel，think等表示看法的动词后，用it作形式宾语，且宾语补足语为表示建议、重要、必要、紧急等意义的形容词时，宾语从句常用虚拟语气，即从句用should do,should可以省略。
I consider it necessary that we (should) combine theory with practice.
We think it advisable that he (should) think carefully before action.
二、虚拟语气在宾语从句中用法
3. wish宾语从句用法
I wish you had come to my birthday party yesterday.
I wish I were rich.
I wish she would try again.
不同情况 从句谓语
与过去愿望相反 had done
与现在愿望相反 did (be 动词用were)
与将来事实相反 would/could/might+ do
二、虚拟语气在宾语从句中用法
4. 虚拟语气在would rather后接的宾语从句的用法。
would rather，would sooner, might as well, would prefer后的宾语从句用虚拟语气，“宁愿，但愿”。
I would rather you went tomorrow (now).
不同情况 从句谓语
与过去事实相反 had done
与现在事实相反 did（ be 动词一般用 were）
与将来事实相反 三、虚拟语气在表语从句中的用法
1.在表示建议、命令、要求、主张、愿望、计划等名词的表语从句中，用虚拟语气，从句should do, should可以省略。
Our decision is that the school (should) remain closed.
Sophia's idea was that they (should) lock up the house.
My suggestion is that we (should) take the 6:00 train.
Their requirement is that every member (should) attend at least one meeting per year.
三、虚拟语气在表语从句中的用法
2. as if和as though引导表语从句，意为“好像”。
You look as if you didn’t care.
He talks about Rome as though he had been there before.
He behaves as if he owned the place.
不同情况 从句谓语
与过去事实相反 had done
与现在事实相反 did (be动词用were)
与将来事实相反 would/could等 + do
Note:在look，seem，taste，smell后，as if引导的从句中可以用陈述语气。
It looks as if they are in a terrible hurry.
It seems as if we shall have to walk.
The meat tastes as if it has gone bad.
The milk smells as if it is sour.
表示所说情况是事实或实现的可能性较大。
四、虚拟语气在同位语从句中的用法
在表示建议、命令、要求、主张、愿望、计划等名词的同位语从句中，用虚拟语气，从句should do, should可以省略。
He made the suggestion that they (should) carry on their conversation in Japanese.
There have been demands that the prime minster (should) resign.
They expressed the wish that they (should) be given more free time.
The resolution that women (should) be allowed to join the society was carried.
真题派送
It’s strange that he ______ have taken the books without the owner’s permission.
09
would
should
could
might
答案：B
解析：考查虚拟语气。句意:真奇怪，他竟然没有主人的允许就拿走了这些书。在句型"It is important /necessary/ strange/impossible/natural that"中，其中由that引导的主语从句通常用“should+动词原形”这样的虚拟语气，其中的should可以省略。故选B。
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真题派送
People are recycling many things which they ______ away in the past.
10
had thrown
would have thrown
were throwing
will be throwing
答案：B
解析：人们现在正在回收过去会扔掉的东西。这句话的which引导的是定语从句，是一个隐含的虚拟语气，因为in the past相当于If they had been in the past，所以句子用虚拟语气，和过去相反用would have done。所以选B。
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真题派送
Mr. Li required the computer equipment referred ______ used in every classroom.
11
should be
have to be
to be
to being
答案：C
解析：因为在表示“要求”的require, request, ask, demand等动词后的宾语从句的谓语要用“(should+)动词原形”，句中referred to是过去分词短语，作the computer equipment的定语，所以选C。
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真题派送
What the customers ______ from the company is that the goods ______ right to their homes.
12
requested; deliver
demand; be delivered
request; should deliver
demand; delivered to being
答案：B
解析：该句句意为顾客对该公司的要求就是货物要送货上门。【What the customers_____ from the company】是 主语从句，is后面的是表语从句，当名词性从句中涉及到demand等表示”要求“的词时，从句中的谓语动词用虚拟语气，即should+ 动词原形，should常常省略，而从句主语货物和”deliver“应该是被动语态，因此第二个空是be delivered.
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真题派送
The workers were not better organized,
otherwise they ______ the task in half the time.
04
accomplished
had accomplished
accomplished
would have accomplished
答案：D
解析：考查虚拟语气。句意:工人们没有被更好的组织起来，否则他们用一半的时间就能完成任务。根据上句the workers were not better organized可知，这是对过去事情的虚拟。与过去事实相反的假设。其句子结构为:从句: If+主语+过去完成时+其他，主句:主语+should ( would, could, might)+现在完成时+其他，故选D。
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真题派送
If we ______ the flight yesterday, we would be enjoying our holiday on the beach.
05
had caught
caught
have caught
would catch
答案：A
解析：考察虚拟语气。句意:如果我们昨天赶上飞机的话， 现在我们正在海滩享受我们的假日了 。根据时间状语yesterday可知， 从句表示与过去事实相反，故用had + v-ed。故选A。
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真题派送
______ not for the support of the teachers, the student could not overcome her difficulty.
06
It were
Were it
It was
Was it
答案：B
解析：在虚拟语气中，be动词只能用were；虚拟条件句省去连词if时，从句主谓部分倒装：Were/Had/Should+主语+谓语动词...
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真题派送
There is a good social life in the village, and I wish I ______ a second chance to become more involved.
07
had
will have
would have had
have had
答案：A
解析：考查虚拟语气。句意：在这个村里有很好的社交生活，并且我希望我再有机会去更多的参与。本题考查wish引导的宾语从句，表示与现在事实相反的愿望，所以从句用一般过去时。故选A。
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真题派送
It was John who broke the window. Why are you talking to me as if I ______ it
08
had done
will have done
would have had done
have had done
答案：A
解析：题意：John打坏了窗户，为什么跟“我”谈话？好像是“我”打坏了窗户似的。题中broke表明“打坏窗户”发生在“过去”。as if / though 后面的从句用 had done 表示对“过去”的虚拟。故A项正确。
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04
状语从句用法
一、虚拟语气在目的状语从句的用法
1.so that, in order that意为“以便，为了”，引导的目的状语从句常用虚拟语气，从句谓语动词前需要加上情态动词。
I go to bed early so that I can have a good sleep.
I will repeat the address in order that there would not be any mistakes.
2.在lest，for fear that, in case意为“以免，以防，唯恐”，引导的目的状语从句用虚拟语气，谓语动词为should do。
I'm telling you this lest you should doubt my sincerity.
05
其他句型用法
1.It is (high/about) time that sb should do/sb did sth
“该是某人做某事时候了”
=It is (high/about) time for sb to do sth
It is time that I went to pick up my daughter at school.
=It is time for me to go to pick up my daughter at school.
It is high time you should go to work.
=It is high time for you to go to work.
It is about time that we went to school.
=It is about time for us to go to school.
2.if only虚拟语气，意为“要是......就好了”
If only Simon would reply to my e-mails.
If only I had more spare time.
If only I could have seen their faces.
不同情况 感叹句谓语
与过去事实相反的愿望 had done
与现在事实相反的愿望 did (be动词用were)
与将来事实相反的愿望 would/could/might + do
1.He talked as if he ______ all about it.
A. knows B. knew C. had known D. would know
2.If only I ______ more time to study.
A. have B. had C. would have D. should have
3.I would rather you ______ tomorrow.
A. come B. came C. will come D. would come
4.He looked as if he ______ ill for a long time.
A. was B. were C. had been D. would be
5. It is high time that we ______ to protect the environment.
A. take action B. took action C. will take action D. have taken action
C
B
B
C
B
06
习题训练
语法填空
What a pity! You missed the sightseeing, or we ____________ （have) a good time together.
Had the governments and scientists not worked together , AIDS-related deaths ____________________________ (fall) since their highest in 2005.
I wish I ___________ (be) at my sister’s wedding last Tuesday, but I was on a business trip in New York then.
It is time that the government _______ (take) measures to protect the rare birds and animals.
If we ________________ (book) a table earlier, we wouldn't be standing here in a queue.
would have had
wouldn’t have fallen
had been
took
had booked
语法填空
6. -Do you have Betty's phone number
-Yes. Otherwise, I _________________________ (be) able to reach her yesterday.
7. ____________ (be) it not for the support of the teachers, the student could not overcome her difficulty.
8. Ellen is a fantastic dancer. I wish I ________ (dance) as well as her.
9. My mom suggests that we ____________ (eat) out for a change this weekend.
10. Why didn't you tell me about your trouble last week If you ____________ (tell) me, I could have helped.
wouldn't have been
Were
danced
(should) eat
had told
句子改错
The doctor ordered that she stayed in bed for a few days.
I’d rather you will go to the concert with me this evening.
If you had worked hard, you would have been very tired now.
It is high time that we leave for our hometown
01
02
03
04
stay
went
would be
left
stayed → (should) stay。order的宾语从句的谓语用“（should）+ 动词原形”的虚拟结构。
will go → went。would rather后的宾语从句中，用过去时表示现在或将来要做的事情。
would have been → would be。从句说的是过去，所以用过去完成时，而主句指的是现在，即现在的虚拟结果，所以用“would + 动词原形”。
leave → left/should leave。在“It is （high）time that …”句型中，从句的谓语动词一般用过去式或should+动词原形，should不可省。
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句子改错
If only I can speak several foreign languages!
I wish I didn’t do such a foolish thing yesterday.
What would have happened if you didn’t help her
But for your great efforts, the work couldn’t be finished on time.
05
06
07
08
can → could。if only引出的句子要用虚拟语气,谓语动词用一般过去时表示目前的愿望。
didn’t do → hadn’t done。wish后的宾语从句谓语用过去完成时，表示与过去事实相反的愿望。
didn’t help → hadn’t helped。主句用“would / should + have + 过去分词”，表示过去时间的虚拟条件从句要用过去完成时。
couldn’t be → couldn’t have been。句意：要不是你那么努力，工作就不会准时完成了。从but for（要不是）短语中的“great”可知，“你”已经付出了努力，是暗含的条件，所以后面句子相当于虚拟条件句的主句，而且与过去事实相反，应该用couldn’t have been。
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could
hadn’t done
hadn’t helped
couldn’t have been
句子改错
-Do you have Betty's phone number
-Yes. Otherwise, I ______ (be) able to reach her yesterday.
______ (be) it not for the support of the teachers, the student could not overcome her difficulty.
01
02
wouldn't have been
Were
01.答案：wouldn't have been
解析：根据句意otherwise意思是否则的话，一般引导虚拟语气，结合具体语境可知，是和过去虚拟，所以主句用would have done。句意： ---你有贝蒂的号码吗？
---有，要不然昨天我都联系不上她了．
02. 答案： Were
解析：考查虚拟语气倒装形式．虚拟语气倒装一般有：were…；should…；had…所以此题答案为B，完整的句型为 If it were not for the support…，句意是"要不是老师的支持…"。考生需掌握if引导虚拟倒装的用法，并结合具体语境灵活使用。
句子改错
Ellen is a fantastic dancer. I wish I ______ (dance) as well as her.
My mom suggests that we ______ (eat) out for a change this weekend.
Why didn't you tell me about your trouble last week If you ______ (tell) me, I could have helped.
03
04
05
danced
(should) eat
had told
03.答案：danced
解析：根据谓语动词 is 可确定是对现在情况的假设。wish后跟宾语从句用虚拟语气时，如对现在情况假设，从句中的谓语动词用过去式（be 用 were），所以用过去式．
句意： Ellen是一个极棒的舞者，我希望我能跳得和她一样地好。
点评 ：此题考查wish后跟宾语从句时用虚拟语气的情况．分为三种情况：1．对现在情况的假设：wish+主语+动词过去式（be 用 were）；2．对过去情况的假设：wish+主语+had 过去分词；3．对将来情况的假设：wish+主语+would/could+动词原形．解题时先根据语境或时间副词/短语的提示，确定是对哪种情况的假设，再选用正确的谓语动词形式．
04.答案：(should) eat
解析：考查虚拟语气。题干关键词为suggest，表示建议，其后所接的名词性从句应用“(should＋)动词原形”的虚拟语气。
05.答案：had told
解析:题目考套虚拟语气。根据第一句可知，对过去发生的事情进行虚拟，if条件句的时态应该用过去完成时。
句意：您上周为他系没有查诉我你遇到的度烦 如果你告诉我的话，我就可以帮你了。
Thank you for
watching.