初中英语语法知识串讲 if引导的虚拟语气课件
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虚拟语气(19张PPT)初中英语专项复习课件
My idea is that we (should ) think it over before accepting it.
My suggestion that we (should) have a meeting has been accepted by others.
We all agree to that suggestion that the meeting (should) be put off.
If I had known his telephone number, I would have called him. 如果明天下雨的话，我们会取消比赛．
If it should \were to rain, we would call off the match.
使用虚拟条件句要注意的几点：
China.
A.would be B. has been C. should be D.was
5. He is talking so much about America as if he ___A__ there.
A.had been
B. has been
C. was
D. has gone
6. The young man insisted that he __B___ nothing
I would rather you told me the truth. I would rather you had gone there last Sunday.
4. as if ( as though) 看起来 常用虚拟形式，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).
虚拟语气
初中英语专项复习
My suggestion that we (should) have a meeting has been accepted by others.
We all agree to that suggestion that the meeting (should) be put off.
If I had known his telephone number, I would have called him. 如果明天下雨的话，我们会取消比赛．
If it should \were to rain, we would call off the match.
使用虚拟条件句要注意的几点：
China.
A.would be B. has been C. should be D.was
5. He is talking so much about America as if he ___A__ there.
A.had been
B. has been
C. was
D. has gone
6. The young man insisted that he __B___ nothing
I would rather you told me the truth. I would rather you had gone there last Sunday.
4. as if ( as though) 看起来 常用虚拟形式，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).
虚拟语气
初中英语专项复习
中考英语语法第十九讲--虚拟语气(共31张PPT)
dangerous. could be
d. If I _______ (be) in your position,I
______w_e_r_e____(ask) for teacher’s help.
would ask
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PRACTICE 2: Fill in the blanks e. If Tom had bee_n_ (be) more careful in the
(shory day were my birthday. I would travel around the world. 第三部分：宾语从句的虚拟
2. 判断虚拟类型
He proposed that we ( should ) set a dead line for the complement of the plan .
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27
PRACTICE 1: Fill in the blanks. a. If they __w_e_r_e_ (be) here,theyw__o_u_ld__ta_k_e__
(take) your advice.
b. If the world-war __b__ro_k_e_____ (break) out
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• My suggestion that we (should) have a meeting has been accepted by others. • We all agree to that suggestion that the meeting
(should) be put off（延期）.
• 指示要求，任何人不得在接到进一步的命令 之前去睡觉。
• My suggestion is that he leave for London at once .
d. If I _______ (be) in your position,I
______w_e_r_e____(ask) for teacher’s help.
would ask
28
PRACTICE 2: Fill in the blanks e. If Tom had bee_n_ (be) more careful in the
(shory day were my birthday. I would travel around the world. 第三部分：宾语从句的虚拟
2. 判断虚拟类型
He proposed that we ( should ) set a dead line for the complement of the plan .
26
27
PRACTICE 1: Fill in the blanks. a. If they __w_e_r_e_ (be) here,theyw__o_u_ld__ta_k_e__
(take) your advice.
b. If the world-war __b__ro_k_e_____ (break) out
25
• My suggestion that we (should) have a meeting has been accepted by others. • We all agree to that suggestion that the meeting
(should) be put off（延期）.
• 指示要求，任何人不得在接到进一步的命令 之前去睡觉。
• My suggestion is that he leave for London at once .
《if的虚拟条件句》课件
首先，需要识别出真实条件句中的时间状语，如过去、现在或将来，这决定了虚拟语气的时态。然后，将真实条 件句的主语和谓语进行相应的转换，使用虚拟语气形式。例如，真实条件句“If he were here, he would help.”可以转换为“If he were here, he would help.”（如果他在这里，他会帮忙。）
虚拟语气结合使用，以增强表达的语气。
例子
03
He talked as if he had been there. （他说得好像他去过那里
一样。）
as though引导的虚拟条件句
总结词
表示“好像”或“似乎”
详细描述
as though 与 as if 相似，用于表示一种不太可能发生的情况或 虚构的情境，通常与虚拟语气结合使用。
与过去事实相反的虚拟条件句
总结词
表示与过去事实相反的情况，假 设条件与结果关系。
详细描述
使用“if+had+过去分词+主语， 主语 +would/could/might/should+ have+过去分词”的结构，表示 与过去实际情况相反的假设条件 。
与将来事实相反的虚拟条件句
总结词
表示与将来事实相反的情况，假设条件与结果关系。
《if的虚拟条件句》ppt课件
目录
• 虚拟条件句的定义和分类 • if虚拟条件句的形式和用法 • if虚拟条件句的时态 • if虚拟条件句的从句谓语形式 • if虚拟条件句的特殊用法 • if虚拟条件句与真实条件句的转
换
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虚拟条件句的定义和分类
虚拟条件句的定义
01
虚拟条件句是一种特殊的条件句 ，表示假设或非真实的情况，与 现实情况相反。
虚拟语气结合使用，以增强表达的语气。
例子
03
He talked as if he had been there. （他说得好像他去过那里
一样。）
as though引导的虚拟条件句
总结词
表示“好像”或“似乎”
详细描述
as though 与 as if 相似，用于表示一种不太可能发生的情况或 虚构的情境，通常与虚拟语气结合使用。
与过去事实相反的虚拟条件句
总结词
表示与过去事实相反的情况，假 设条件与结果关系。
详细描述
使用“if+had+过去分词+主语， 主语 +would/could/might/should+ have+过去分词”的结构，表示 与过去实际情况相反的假设条件 。
与将来事实相反的虚拟条件句
总结词
表示与将来事实相反的情况，假设条件与结果关系。
《if的虚拟条件句》ppt课件
目录
• 虚拟条件句的定义和分类 • if虚拟条件句的形式和用法 • if虚拟条件句的时态 • if虚拟条件句的从句谓语形式 • if虚拟条件句的特殊用法 • if虚拟条件句与真实条件句的转
换
01
虚拟条件句的定义和分类
虚拟条件句的定义
01
虚拟条件句是一种特殊的条件句 ，表示假设或非真实的情况，与 现实情况相反。
英语语法If型虚拟语气PPT课件
第7页/共34页
make the right decision. If he hadn't given up then, he would have got worse injured.
After Liu dropped out of the race, China’s Internet was filled with comments that ranged from sympathy to suspicion. It is hard to imagine how much Liu suffered. Luckily, he didn't lose heart. “I never quit easily,” he said," I believe I will come back.” Yes, he made it. If he hadn't been so determined, he wouldn't have succeeded again.
与现在sk事y实.
相反的假设
1. did 2. were
would,should,could,might ＋V.(原)
第11页/共34页
虚拟语气
Case1: If型虚拟条件句
1. If I succeeded in passing the test tomorrow, I would be very happy.
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She had her teeth pulled out because she ate too much candy.
If she hadn’t eaten so much candy, she wouldn’t have had her teeth pulled out.
make the right decision. If he hadn't given up then, he would have got worse injured.
After Liu dropped out of the race, China’s Internet was filled with comments that ranged from sympathy to suspicion. It is hard to imagine how much Liu suffered. Luckily, he didn't lose heart. “I never quit easily,” he said," I believe I will come back.” Yes, he made it. If he hadn't been so determined, he wouldn't have succeeded again.
与现在sk事y实.
相反的假设
1. did 2. were
would,should,could,might ＋V.(原)
第11页/共34页
虚拟语气
Case1: If型虚拟条件句
1. If I succeeded in passing the test tomorrow, I would be very happy.
第14页/共34页
She had her teeth pulled out because she ate too much candy.
If she hadn’t eaten so much candy, she wouldn’t have had her teeth pulled out.
if引导的虚拟语气条件句PPT课件
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2.If it ___ tomorrow, I would not attend the party. A. rained B. rains C. had rained D. were to rain 3. I would have gone to the meeting if I __time. A. had had B. have had C. had D. would have had
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二.与现在事实相反
If引导的虚拟条件句
主句
与现在事实 相反的假设
If + 主语 + 动词过去式 If + 主语 + （be动词一般用were） would(could/shoul
d/might) + 动词原 即：If + 一般过去时 形
If I were you, I would buy a red skirt.
mood about “if”. 4.Practices.
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虚拟语气
概念： 1.表示说话人所说的话不是一个事实，
而是一个假设、怀疑、猜测等（常见于 条件状语从句或让步状语从句）。 2.表示说话人的愿望、建议、要求、命 令等（常见于名次性从句）。 简单来说：不是事实或不大可能发生的 事情，用虚拟语气来表述。
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If引导的虚拟条件句
注意：要区分if引导的真实条件句和if引 导的虚拟条件句
表示虚拟的，几乎无法实现的时候，采 用虚拟语气。
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If引导的虚拟条件句
TYPES:
if条件句中虚拟语气课件PPT课件
学习心得体会
通过本课的学习，我深入了解了虚拟 语气的使用规则和应用场景，对英语 语法有了更深入的认识。
本课的学习不仅提高了我的英语水平， 也让我对英语语法产生了更浓厚的兴 趣。
在学习过程中，我遇到了一些困难， 但通过不断练习和总结，我逐渐掌握 了虚拟语气的使用技巧。
在未来的学习中，我将继续深入探索 虚拟语气在不同语境中的应用型
01
与现在事实相反的虚拟语气
表示与当前实际情况相反的情况，使用过去时态来表示。例如：“If I
were you, I would choose the latter option.”
02
与过去事实相反的虚拟语气
表示与过去实际情况相反的情况，使用过去完成时态来表示。例如：
“If I had known the answer, I would have told you earlier.”
03
与将来事实相反的虚拟语气
表示与将来实际情况相反的情况，使用过去时态或过去完成时态来表示
。例如：“If I were to do it again, I would make different
choices.”
03 if条件句中虚拟语气的用 法
表示与现在事实相反的情况
总结词
使用would+动词原形
填空题
• 题目：If he _____ the right answer, he would have won the game.
填空题
答案
01
had given
解析
02
从句与过去事实相反，表示与过去事实相反的情况，从句用“
过去完成时”。
题目
03
If she _____ more attention in class, she would have
if虚拟语态PPT课件
Key:D
第31页/共35页
Kitty talks as if she ______ on the spot. A. is B. were C. has been D. be
Key: B
第32页/共35页
Subjunctive
Mood
用在状语从句中 （一）
说明
例句
虚拟语气用在由as if 或 as though 引导的比较 方式状语从句中，其谓语 动词形式与 wish 后的宾 语从句中的谓语动词形式 相同
当虚拟条件句含有were, had, should时，可以省略if，而把were, had, should 移到主语之前，即用倒装句
第13页/共35页
If sb were sth/sb，Sb would do sth. If I were you，I would not do like that. Were I you，I would not do like that.
第14页/共35页
If sb were sth/sb，Sb would do sth. If I were you ,I would ask our teacher for advice. Were I you ,I would ask our teacher for advice.
第15页/共35页
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二. 虚拟语气在as if (as though)等引导的从 句中.
They look as if they were real brothers. 他们俩看起来好像真的是亲兄弟一样。
第22页/共35页
2.表示过去的事实相反，谓语动词用过去 完成式。例如： He talks as if he had really been there. 他说得好象他当时真的在那里一样。 He talked as if nothing had happened. 他说得好像什么事情也没有发生过。
第31页/共35页
Kitty talks as if she ______ on the spot. A. is B. were C. has been D. be
Key: B
第32页/共35页
Subjunctive
Mood
用在状语从句中 （一）
说明
例句
虚拟语气用在由as if 或 as though 引导的比较 方式状语从句中，其谓语 动词形式与 wish 后的宾 语从句中的谓语动词形式 相同
当虚拟条件句含有were, had, should时，可以省略if，而把were, had, should 移到主语之前，即用倒装句
第13页/共35页
If sb were sth/sb，Sb would do sth. If I were you，I would not do like that. Were I you，I would not do like that.
第14页/共35页
If sb were sth/sb，Sb would do sth. If I were you ,I would ask our teacher for advice. Were I you ,I would ask our teacher for advice.
第15页/共35页
第33页/共35页
二. 虚拟语气在as if (as though)等引导的从 句中.
They look as if they were real brothers. 他们俩看起来好像真的是亲兄弟一样。
第22页/共35页
2.表示过去的事实相反，谓语动词用过去 完成式。例如： He talks as if he had really been there. 他说得好象他当时真的在那里一样。 He talked as if nothing had happened. 他说得好像什么事情也没有发生过。
虚拟语气-(共51张)PPT课件
A. Were B. should C. would D. will
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If you had followed my advice, you would be
able to finish the work now. 如果你当时听了我的话，现在就能完成这份 工作了。 （从句说明过去，主句说明现在。）
时 间 If 条件句
主句
过去
现在
将来
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10
一、一般条件句中的虚拟语气
时 间 If 条件句
主句
过去
had done
would should could might
+have done sth
现在
would
助动词 be用 were should 实义动词 do 用 did could
might
+ do sth
Without your help, we D____ such rapid progress.
A. couldn’t make B. wouldn’t make
C. will not have made D. wouldn’t have made
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名词性从句中的虚拟句
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宾语从句中的虚拟语气
句式一：wish后面宾语从句中的虚拟语气，表示
与事实相反的愿望。其表达形式一般是将从句的谓
语动词退后一个时态。例如:
1)与现在事实相反 : wish + (that)+did(were)
I wish I were as healthy as you.
A.could take B.would take
C.will have taken D.would- have taken
if引导虚拟语气条件句PPT课件
06
总结与回顾
回顾if引导虚拟语气条件句的用法
虚拟语气在条件句中的用法
在条件句中，使用虚拟语气表示与实际情况相反的情况，或者表 示假设、猜测等。
虚拟语气的形式
虚拟语气有多种形式，包括与现在事实相反、与过去事实相反、与 将来事实相反等。
虚拟语气的时态
虚拟语气与时态有关，需要根据实际情况选择适当的时态。
况，主句用would+have+过 去分词的形式。
翻译题
01
02
03
中文
如果我知道这个消息，我 早就告诉你了。
英文
If I had known the news, I would have told you long ago.
解释
从句表示与过去事实相反 的情况，主句用 would+have+过去分词 的形式。
题目
If he _______ the money, he _______ able to buy a car.
had had; would be
答案
解释
从句表示与过去事实相反的情况，主句用would+______ rained last night,
the ground would be wet this morning.
表示与事实相反的情况
总结词
与事实相反的情况是指条件句中的假设与现实情况相 反，主句使用虚拟语气表示与实际情况的差异。
详细描述
在英语中，当if引导的条件句表示与事实相反的情况时， 主句通常使用虚拟语气。这种用法常用于表示某种假设 的情况并未实现，而是与现实情况相反。例如，“If I were you, I would not make that mistake again.” （如果我是你，我不会再犯那个错误了。）这句话表示 的是假设自己是对方，但实际上并不是，提醒对方不要 犯同样的错误。
if引导的虚拟语气 精美PPT
C. would have
D.had had
Practice
C 5. If I were to be a doctor, I
those patients.
A.will help
B.help
C.would help
D. would have helped
Practice
D 6.If I
the USA last year, I would have gone to New York City.
A. visited
B.were to visit
C. should visit
D. had visited
Practice
翻译
1.如果我是蜘蛛侠，我会尽最大努力拯救地球。
If I were Spider-man, I would try my best to save the world.
Practice
将来
did/were to do/should do
would(could/might... )do
Practice
单选题
B 1. If there were no subjunctive mood, English much easier to learn.
A. could have been
B. would be
if引导的虚拟条件句的用法
根据事情发生的不同时间，if引导的虚拟条件句可以假设 现在，将来或过去的事情。
if引导的虚拟条件句的用法
对现在假设
If I had one million dollars,I would buy a Lamborghini.
if引导的虚拟条件句的用法
if引导的虚拟条件句ppt课件.ppt
if引导的虚拟条件句ppt课件.ppt1、虚拟语气------if引导的虚拟条件句虚拟语气(if条件句)Iftheworkingconditionsarenottoobad,Iwillacceptthejob.Ift heworkingconditionswerenottoobad,Iwouldacceptthejob.真实条件句：对现有事实的一种陈述，使用的是陈述语气〕---表达一种看法〔工作条件状况未知〕非真实条件句---虚拟语气〕表达一种假设〔与事实相反---工作条件已经很糟糕了〕If引导的虚拟条件句的三种类型带if的虚拟条件句省略if的虚拟条件句隐藏if的虚拟条件句Ⅰ、带if的虚拟条件句Ifsheinvitedme,Iwouldgototheparty.Ifshehadinvitedmeyest2、erday,Iwouldhavegonetotheparty.Ifsheshouldinvitemetomorrow, Iwouldgototheparty.与如今事实相反：if条件句用一般过去时〔动词be用were〕主句用would(should/could/might)+动词原形IamsorryIamverybusyjustnow.IfIhadtime,Iwouldcertainlygototh emovieswithyou.Ifyoucouldbeartheloneliness,youmightsucceed. Ifwehadn’tmadeadequatepreparations,thepartywouldn’thavebe ensosuccessful.The3、floodmighthavecausedgreatdamagetothepeople,ifwehadn’tbuilt somanydams.与过去事实相反：if条件句中用过去完成时主句用would〔should/could/might〕+have+过去分词。
if条件状语从句中虚拟语气.pptx
注意：如果动作在进行中，主句要用："主语+ would + have + 完成进行式动词 +…… ⑺、 If they had been here, he would have been speaking to them.(从句动词用 had been, 主句动词用 have been speaking)
① 与过去事实相反，在从句中用过去完成时形式表示。 ② 与现在事实相反，在从句中用过去一般时形式表示。 ③ 与将来事实可能相反，在从句中用过去将来时形式表示。
should, could 等加一个与从句一致的动词形式。
主句中则用情态动词 would,
例： ⑴、If I had come her yesterday, I would have seen him. ⑵、If I were a teacher, I would be strict with my students. ⑶、If it should snow tomorrow, they couldn't go out.
1
（二）、表示与过去事实相反的虚拟条件句。其句子结构为：从句：If + 主语+ had +过去完 成式动词+ …… 主句：主语+ would (should, could, might) + have +过去完成式动 词+…… 例如: ⑴、If you had taken my advice, you would not have made such a mistake.如果你听 了我的劝告,就不会犯这样的错误。（事实上你没有听我的劝告） ⑵、I shouldn’t have been able to write such good novels if I hadn’t lived among the peasants for five years.如果我不是和农民生活了五年，就不可能写出这样好的小说。（事实 上我和农民生活了五年） ⑶、If you hadn’t invited me, I shouldn’t have come to the party.如果你不邀请我， 我就不会来参加你的舞会。(事实上你邀请了我) ⑷、If I hadn’t been ill yesterday, I might have come to school.昨天要是不生病，我 是可能来上学的。（事实上我生病了） ⑸、If he hadn’t broken the law, he wouldn’t have been put in prison.如果他不违 法的话，就不会被打入监狱。（事实上他违法了） ⑹、 If I had been your headmaster, I should have dismissed you from school. 我要 是你们校长的话，就把你开除学籍了。（事实上虚拟语气的判断判断是真实条件句还是非真实条件句。 只有在非真实条件句中才使用虚拟语气。通过句子意思，看假设的条件是否能够实现， 能够实现是真实条件句，不能使用虚拟语气； 假设的条件不能实现则是非真实条件句，要用虚拟语气。
① 与过去事实相反，在从句中用过去完成时形式表示。 ② 与现在事实相反，在从句中用过去一般时形式表示。 ③ 与将来事实可能相反，在从句中用过去将来时形式表示。
should, could 等加一个与从句一致的动词形式。
主句中则用情态动词 would,
例： ⑴、If I had come her yesterday, I would have seen him. ⑵、If I were a teacher, I would be strict with my students. ⑶、If it should snow tomorrow, they couldn't go out.
1
（二）、表示与过去事实相反的虚拟条件句。其句子结构为：从句：If + 主语+ had +过去完 成式动词+ …… 主句：主语+ would (should, could, might) + have +过去完成式动 词+…… 例如: ⑴、If you had taken my advice, you would not have made such a mistake.如果你听 了我的劝告,就不会犯这样的错误。（事实上你没有听我的劝告） ⑵、I shouldn’t have been able to write such good novels if I hadn’t lived among the peasants for five years.如果我不是和农民生活了五年，就不可能写出这样好的小说。（事实 上我和农民生活了五年） ⑶、If you hadn’t invited me, I shouldn’t have come to the party.如果你不邀请我， 我就不会来参加你的舞会。(事实上你邀请了我) ⑷、If I hadn’t been ill yesterday, I might have come to school.昨天要是不生病，我 是可能来上学的。（事实上我生病了） ⑸、If he hadn’t broken the law, he wouldn’t have been put in prison.如果他不违 法的话，就不会被打入监狱。（事实上他违法了） ⑹、 If I had been your headmaster, I should have dismissed you from school. 我要 是你们校长的话，就把你开除学籍了。（事实上虚拟语气的判断判断是真实条件句还是非真实条件句。 只有在非真实条件句中才使用虚拟语气。通过句子意思，看假设的条件是否能够实现， 能够实现是真实条件句，不能使用虚拟语气； 假设的条件不能实现则是非真实条件句，要用虚拟语气。
初中英语语法-虚拟语气PPT课件
2ppt课件一虚拟语气在条件状语从句中的用法条件从句if从句的谓语形式主句的谓语形式现在过去未来didwerehaddonewouldcouldshouldmightv
1.英语动词有三种语气， 陈述语 气，祈使语气和虚拟语气。 （见课本P 170页）。
2. 定义：用来表示说的话不是事 实，或者是不可能发生的情况， 而是一种愿望，建议，假设的 语气叫虚拟语气。
过去时 4.It’s (about/high) time +that -should +V. It’s high time that you went. 你该走了。 It’s high time that you were going. It’s high time that you should go. 我们该睡觉了。 It’s time that we went to bed.
• 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. They requested that we (should) send them to work there.
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?
1.英语动词有三种语气， 陈述语 气，祈使语气和虚拟语气。 （见课本P 170页）。
2. 定义：用来表示说的话不是事 实，或者是不可能发生的情况， 而是一种愿望，建议，假设的 语气叫虚拟语气。
过去时 4.It’s (about/high) time +that -should +V. It’s high time that you went. 你该走了。 It’s high time that you were going. It’s high time that you should go. 我们该睡觉了。 It’s time that we went to bed.
• 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. They requested that we (should) send them to work there.
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?
if条件句中虚拟语气PPT课件
在英语中，虚拟语气通常通过动 词时态的变化来体现，如使用过 去时、过去完成时或过去将来时 等。
虚拟在事实相反的情况，使用一般过去时或过去进行时。
与过去事实相反的虚拟语气
表示与过去事实相反的情况，使用过去完成时。
与将来事实相反的虚拟语气
表示与将来事实相反的情况，使用过去将来时。
在委婉语气中的使用
总结词
虚拟语气在if条件句中还可以用于表达委婉的语气，通过使用相应的时态和谓语动词形式来缓和语气或避免直接表达 。
详细描述
在某些情况下，使用虚拟语气可以表达更加委婉的语气，使话语更加柔和、礼貌或含蓄。这种用法通常用于避免直接 表达某些可能引起冲突或敏感的话题。
例子
If I were you, I would consider carefully before making a decision.（如果我是你，我会在做出决定 之前仔细考虑。）这句话使用虚拟语气来委婉地提出建议或建议对方谨慎行事。
05
if条件句中虚拟语气的例句分析
与现在事实相反的例句
01
02
03
总结词
表示与现在实际情况相反 的情况
例句
If I were you, I would choose this option.（如 果我是你，我会选择这个 选项。）
解释
这句话表示与现在实际情 况相反的情况，即说话者 不是听话者，所以选择的 情况也是不存在的。
与过去事实相反的例句
总结词
表示与过去实际情况相反的情况
例句
If I had known the answer, I would have told you.（如果我 早知道答案，我早就告诉你了。）
解释
这句话表示与过去实际情况相反 的情况，即说话者没有早知道答 案，所以告诉你的情况也是不存
虚拟在事实相反的情况，使用一般过去时或过去进行时。
与过去事实相反的虚拟语气
表示与过去事实相反的情况，使用过去完成时。
与将来事实相反的虚拟语气
表示与将来事实相反的情况，使用过去将来时。
在委婉语气中的使用
总结词
虚拟语气在if条件句中还可以用于表达委婉的语气，通过使用相应的时态和谓语动词形式来缓和语气或避免直接表达 。
详细描述
在某些情况下，使用虚拟语气可以表达更加委婉的语气，使话语更加柔和、礼貌或含蓄。这种用法通常用于避免直接 表达某些可能引起冲突或敏感的话题。
例子
If I were you, I would consider carefully before making a decision.（如果我是你，我会在做出决定 之前仔细考虑。）这句话使用虚拟语气来委婉地提出建议或建议对方谨慎行事。
05
if条件句中虚拟语气的例句分析
与现在事实相反的例句
01
02
03
总结词
表示与现在实际情况相反 的情况
例句
If I were you, I would choose this option.（如 果我是你，我会选择这个 选项。）
解释
这句话表示与现在实际情 况相反的情况，即说话者 不是听话者，所以选择的 情况也是不存在的。
与过去事实相反的例句
总结词
表示与过去实际情况相反的情况
例句
If I had known the answer, I would have told you.（如果我 早知道答案，我早就告诉你了。）
解释
这句话表示与过去实际情况相反 的情况，即说话者没有早知道答 案，所以告诉你的情况也是不存
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考点梳理 if 引导的虚拟语气
与现在事实相反
从句：实义动词过去式；主句：would+动词原形
小结 1. 与 现在事实相反的虚拟语气
They had no rain last year.
If they had had enough rain last year, they would have gained good harvest.
中考语法知识串讲—if引导的虚拟语气
考点梳理 定义
用来表示说的话不是事实，或者是不可能发生的情况，而是 一种假设、愿望，猜测、怀疑或建议等的语气叫虚拟语气。
考点梳理 if 引导的虚拟语气
与现在事实相反
考点梳理 if 引导的虚拟语气
与现在事实相反
从句：be动词用were；主句：would/could+动词原形
考点梳理 if 引导的虚拟语气
与过去事实相反
He failed the exam yesterday.
从句：had+动词过去分词；主句：would + have +动词过去分词
考点梳理 if 引导的虚拟语气
与过去事实相反
从句：had+动词过去分词；主句：would not + have+动词过去分词
if引导的虚拟语气有三种情况：与现在事实相 反，与过去事实相反，与将来事实相反，中 考中常考查的是第一种情况：与现在事实相 反的虚拟语气，希望大家重点掌握与现在事 实相反的虚拟语气。
小结 3.与将来事实相反的虚拟语气
考点梳理 总结
if 引导的虚拟语气
中考链接
从句：实义动词用一般过去时
主句：should/could+动词原形；
中考链接 从句：be动词用were；主句：would/could+动词原形
中考链接
主句：should/would/could/might+动词原形， 从句：一般过去时态。
小结
2. 与过去事实相反的虚拟语气
考点梳理 if 引导的虚拟语气
与将来事实相反
“If it were/ should be fine tomorrow, I would go to travel.”
考点梳理 if 引导的虚拟语气
与将来事实相反
When he grows up, he wants to be an astronaut.