中考语法知识串讲+if引导的虚拟语气第一讲：if引导的虚拟语气课件--名师微课堂
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if条件句中的虚拟语气(市公开课一等奖)课件
Sentence chain
Make sentences in groups of six using subjunctive mood in if-clauses. And the sentences must be related to each other. Then act it out one after another. Five minutes for you.
1.If I had a boat ,I would go out on the ocean. 2. If I had only known I'd never hear your voice again, I would have memorized each thing you ever said.
Read the if-clauses in the passage again and fill in the blanks.
Fill in the blanks
动词过去式
would/could/should/might
(be动词用were) +动词原形
would/could/should/might
3. If I were a boy ,I think I undcould erstand how it feels girl.
to love a
Compare and find the difference.
If I have time tomorrow, I will go
with you.
If Tom hadn’ t driven after getting drunk, he wouldn’t have had a car accident .
初中英语语法知识串讲 if引导的虚拟语气课件
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；
IF条件句中的虚拟语气(微课)课件
should /
were to might do/should
do/v-ed
动词原形
have done
动词原形
Imagine if you could change your sex, what would you do? Form a report using the “if” subjunctive mood.
STAR
The Subjunctive Mood In If Clauses
虚拟语气在if条件句中的用法
吉水二中 刘慧颖
If I were a boy
If I were a boy I think I could understand How it feels to love a girl I swear I'd be a better man
The Subjunctive Mood In If--clauses
01
Contrary to the present
02
Contrary to the past
03
Contrary to the future
如果我是一只鸟
If I were a bird, I would have two wings; If I had two wings, I would fly high in the sky;
THANK YOU
If Jack hadn't been on the Titanic, he wouldn't have met Rose.
If 从句的谓语形式
主句的谓语形式
had (not)+ done
would/could/should/might (not) + have done
if 虚拟语气的用法PPT课件
This is the factoryt_h_a_t/_w_h__ic_hmy father visited . • October 1 is a day t_h_a_t_/w__h_i_chwe will never
forget. • October 1 is a day _w_h_e_n_the People’s
Learning Is To Achieve A Certain Goal And Work Hard, Is A Process To Overcome Various Difficulties For A Goal
gave.
及物动词
practice
This is the reason_t_h_a_t/_w_h__ic_h_ he gave me. This is the reason_w_h_y_ he was late.
This is the factory _w__h_e_re__my father worked.
that has lightened my pathway a while. ④ Come and sit by my side if you love me, ⑤ Do not hasted to bid me adieu, ⑥ But (just) remember the Red River Valley, ⑦ And the one that (who) has loved you so
Republic of China was founded.
Enjoy a folk from Canada, and then find out lines that include attributive clause .
Red River Valley ① From this valley they say you are going, ② I will miss your sweet face and sweet smile, ③ For I know you are taking the sunshine
forget. • October 1 is a day _w_h_e_n_the People’s
Learning Is To Achieve A Certain Goal And Work Hard, Is A Process To Overcome Various Difficulties For A Goal
gave.
及物动词
practice
This is the reason_t_h_a_t/_w_h__ic_h_ he gave me. This is the reason_w_h_y_ he was late.
This is the factory _w__h_e_re__my father worked.
that has lightened my pathway a while. ④ Come and sit by my side if you love me, ⑤ Do not hasted to bid me adieu, ⑥ But (just) remember the Red River Valley, ⑦ And the one that (who) has loved you so
Republic of China was founded.
Enjoy a folk from Canada, and then find out lines that include attributive clause .
Red River Valley ① From this valley they say you are going, ② I will miss your sweet face and sweet smile, ③ For I know you are taking the sunshine
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
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。
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。
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。
精华版if引导的虚拟语气讲解
if引导的条件状语从句中的虚拟语气虚拟语气表示一种不能实现的假设。
该语法主要用于if条件状语从句。
一、if引导的条件状语从句的分类及虚拟条件句的判断1、可以把条件句分为两类：1).真实条件句（Sentences of Real Condition）：凡是假设的情况发生性可能很大，就是真实条件句。
例如：⑴、If I have time , I will help you with this work.如果我有时间会帮助你做此工作的。
(2)、If time permits, we'll go fishing together.(如果有时间的话，我们就一起去钓鱼。
）2).虚拟条件句（Sentences of Unreal Condition）：当假设是不大可能实现时，就是虚拟条件句。
例如：⑴、If I were you , I would have attended the meeting.如果我是你的话，就去参加会议了。
⑵、If he had come here yesterday, he would have seen his old friend.假如他昨天来这儿的话，就会看见他的老朋友。
（3）、If it had rained yesterday, we would have stayed at home.（如果昨天下雨的话，我们就会留在家里。
）2、if条件状语从句中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。
判断这个假设是与哪个事实相反。
通常有三种情况：①与过去事实相反。
②与现在事实相反。
③与将来事实可能相反。
3、“后退一步法”后退一步法是指在准确地判断了该句与哪一事实相反后，按虚拟语气的后退一步法处理从句谓语动词的时态。
IF条件句中虚拟语气(微课)PPT课件
03 if条件句中虚拟语气的用 法
表示与事实相反的情况
结构
与现在事实相反，从句用“if+主 语+动词过去式”，主句用 “would+动词原形”。
举例
If I were you, I would choose to study abroad.（如果我是你，我 会选择出国留学。）
表示假设条件
结构
假设条件句可以用“if+主语+动词过 去式+其他”，表示在假设条件下可 能发生的情况。
虚拟语气与其他从句的区别
虚拟语气在if条件句中的用法与其他从句有所不同，需要注 意区分。
例如，与if条件状语从句相比，虚拟语气在表达与事实相 反的情况时，主句和从句的谓语动词形式会有所不同；与 if时间状语从句相比，虚拟语气更加注重假设和想象，而 非真实的时间顺序。
05 if条件句中虚拟语气的练 习与巩固
在主句和从句中，时态的一致性是虚 拟语气的基本要求，否则会导致语法 错误或语义混淆。
主从句时态对应关系
在if条件句中，虚拟语气的主句和从句时态有一定的对应关系 。
如果主句是虚拟现在时，从句通常也是虚拟现在时；如果主 句是虚拟过去时，从句通常也是虚拟过去时；如果主句是虚 拟将来时，从句通常也是虚拟将来时。
02 if条件句中虚拟语气的形 式
与现在事实相反的虚拟语气
总结词
表示与现在事实相反的情况，通常使用动词的过去式。
详细描述
在if条件句中，当表示与现在事实相反的情况时，从句使用动词的过去式（be动词 用were），主句使用would+动词原形。例如，“If I were you, I would choose to study abroad.”（如果我是你，我会选择出国留学。）
语法讲座：If型虚拟语气
had been told not be (be) on fire now. the building would ___________
had followed If you_______________( follow ) the
would be be ) doctor’s advice , you _________(
better now.
•
课堂即时翻译：
如果我是你，我就听从他的建议。
If I were you, I would have taken his advice.
如果你听我的话，现在就不会陷入麻烦。 If you had listened to me, you would not be in trouble now.
_________________(tell) you. knew ________ (buy) the plane.
would buy
would tell
虚拟过去的if型虚拟语气
2
刘翔
What happened to him ？
hadn ’t injured If I ___________ would have won （injure）, I __________ （win） the first place .
主句谓语形式
might/should/would/could + do might/should/would/could + have done
might/should/would/could + do
虚拟现在的if型虚拟语气
2
If I
had (have) a lot of money ,
I would buy a flat.
had followed If you_______________( follow ) the
would be be ) doctor’s advice , you _________(
better now.
•
课堂即时翻译：
如果我是你，我就听从他的建议。
If I were you, I would have taken his advice.
如果你听我的话，现在就不会陷入麻烦。 If you had listened to me, you would not be in trouble now.
_________________(tell) you. knew ________ (buy) the plane.
would buy
would tell
虚拟过去的if型虚拟语气
2
刘翔
What happened to him ？
hadn ’t injured If I ___________ would have won （injure）, I __________ （win） the first place .
主句谓语形式
might/should/would/could + do might/should/would/could + have done
might/should/would/could + do
虚拟现在的if型虚拟语气
2
If I
had (have) a lot of money ,
I would buy a flat.
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
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:
虚拟语气知识点ppt
3.If+主语+should +动词原形
主语＋should, would,might, could＋动词原形
虚拟语气 1. If 引导的条件句中的虚拟语气（3类）
注意：
if引导的虚拟条件句，当从句的谓语动词含有were，should，had时， if可以省略，这时从句要用倒装语序，即把were，should，had等词 置于句首。
虚拟语气 Subjunctive
关于“语气”
语气和时态、语态一样，都是谓语的一种形式。
1.陈述语气（陈述事实） Our city has experienced great changes.
四 2.疑问语气（提出问题） 类 Have you ever been to China？ 语 3.祈使语气（发出请求、邀请、建议、命令等） 气 Hurry up！ Just do it！
If they were here now, they could help us. Were they here now, they could help us.
虚拟语气 Wish后的宾语从句中的虚拟语气（3类）
I wish (that) … …
① 对现在的虚拟 - 与现在事实相反的假设
I wish (that) I were ten years old. be → were
虚拟语气 1. If 引导的条件句中的虚拟语气（3类）
③ 对将来的虚拟 - 与将来事实相反假设
主句谓语动词
从句谓语动词
If + 主语 + V过去式
主语+ should/would/might/could + do
If + 主语 + were to + do
if引导的虚拟语气
2. If I were you ,I wouldn't be so proud.
二、与过去事实相反
1.If he had taken my advice, he would not have made such a mistake.
2.If I had got there earlier, I would have met her.
5.Had I known about the computer program, a huge amount of time and energy_____.
A. would have been saved B. had been saved C. will be saved D. was saved
从句Biblioteka 主句（陈述句）if+一般现在时，一般将来时（will+动词原形）
3.给某人提建议或命令某人做某事 If you feel sleepy, go to bed. If you want to know how it works, read the
instructions.
从句
主句
if+一般现在时，祈使句
真实条件句和 虚拟条件句
1.表示客观事实或真理
If you freeze water, it turns to ice. If you eat a lot of chocolate, you put on weight.
从句
主句
if+一般现在时，一般现在时
2.表示将来可能发生的事 If he fails in the exam, he will let his parents down. You will certainly succeed if you keep on trying.
二、与过去事实相反
1.If he had taken my advice, he would not have made such a mistake.
2.If I had got there earlier, I would have met her.
5.Had I known about the computer program, a huge amount of time and energy_____.
A. would have been saved B. had been saved C. will be saved D. was saved
从句Biblioteka 主句（陈述句）if+一般现在时，一般将来时（will+动词原形）
3.给某人提建议或命令某人做某事 If you feel sleepy, go to bed. If you want to know how it works, read the
instructions.
从句
主句
if+一般现在时，祈使句
真实条件句和 虚拟条件句
1.表示客观事实或真理
If you freeze water, it turns to ice. If you eat a lot of chocolate, you put on weight.
从句
主句
if+一般现在时，一般现在时
2.表示将来可能发生的事 If he fails in the exam, he will let his parents down. You will certainly succeed if you keep on trying.
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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.
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。
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
中考语法知识串讲—if引导的虚拟语气
讲师：李玉霞
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。
பைடு நூலகம்
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.