虚拟语气在条件状语从句中的用法if条件句.ppt
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虚拟语气在if句的用法PPT幻灯片
8
If you had worked hard ,you would have passed the exam .
9
If they had had enough rain last year, they would have gained good harvest.
10
If he had driven more carefully yesterday, he would not have had the car accident .
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If it were/ should be fine tomorrow , I would go to see him.
14
One years later ,maybe you will be in University
If I should visit/ were to visit/ visited my alma
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Discover2
1.If you had worked hard ,you would have passed the exam . 2.If they had had enough rain last year, they would have gained good harvest. 3.If he had driven more carefully yesterday, he would not have had the car accident.
2
These show your good wishes or dreams. It is evident that they are not real or they can’t come true
表示说话人的愿望、假设、猜测或 建议，而不表示客观存在的事实。
If you had worked hard ,you would have passed the exam .
9
If they had had enough rain last year, they would have gained good harvest.
10
If he had driven more carefully yesterday, he would not have had the car accident .
13
If it were/ should be fine tomorrow , I would go to see him.
14
One years later ,maybe you will be in University
If I should visit/ were to visit/ visited my alma
11
Discover2
1.If you had worked hard ,you would have passed the exam . 2.If they had had enough rain last year, they would have gained good harvest. 3.If he had driven more carefully yesterday, he would not have had the car accident.
2
These show your good wishes or dreams. It is evident that they are not real or they can’t come true
表示说话人的愿望、假设、猜测或 建议，而不表示客观存在的事实。
虚拟语气讲解课件ppt.ppt
虚拟语气
虚拟语气在：在宾语从句中
[例句]
1. I wish she would be on my side. 我希望她能站在我一边。
2. I wish I were 10 years younger. 我但愿自己能年轻十岁。
3. I wish (that) you would get a good job. 我希望你能找到一个好职业。
• He insisted that he was right. 他坚称他是正确的。
认识到了贫困户贫困的根本原因，才 能开始 对症下 药，然 后药到 病除。 近年来 国家对 扶贫工 作高度 重视， 已经展 开了“ 精准扶 贫”项 目
虚拟语气
虚拟语气在：在宾语从句中
• 在would (had) rather(宁愿) 引导的宾语从句中
[例句] • It’s necessary that we should have a walk now.
我们有必要出去散散步。
• It’s natural that she should do so. 她这样做是很自然的。
1. It’s important that we should take good care of the patient. 重要的是我们要照顾好病人。
一、在条件从句中 (叫虚拟条件句)，表示与事实相反 的条件。分三种情况(以 do 为例)：
认识到了贫困户贫困的根本原因，才 能开始 对症下 药，然 后药到 病除。 近年来 国家对 扶贫工 作高度 重视， 已经展 开了“ 精准扶 贫”项 目
虚拟语气
虚拟语气在 在条件从句中
[例句]
• If you had come a few minutes earlier, you would have met him.
虚拟语气在条件状语从句中的用法(if条件句)
在写作中的应用
创作文学作品中
在创作小说、诗歌等文学作品时， 虚拟语气可以用来表达虚构的情 节和角色情感，增强作品的情感
色彩和艺术效果。
撰写学术论文
在撰写学术论文时，使用虚拟语 气可以表达假设的情景或条件， 例如在讨论不同政策或方案的影
响时。
写邮件和信件
在写邮件或信件时，使用虚拟语 气可以表达礼貌和尊重，例如在
在撰写商务广告和宣传材料时，使用虚拟语气可以增强语 言的感染力和说服力，例如“假如您正在寻找更好的产品 ，那么您来对了地方。”
感谢您的观看
THANKS
if条件句中的虚拟语气与时间状语从句的时态不一致
总结词
当if条件句中的虚拟语气与时间状语从句的时态不一致 时，通常是为了强调或表达与时间状语从句相反的情 况。
详细描述
在英语语法中，当if条件句中的虚拟语气与时间状语从 句的时态不一致时，通常是为了强调或表达与时间状语 从句相反的情况。这种用法能够使句子更加生动和富有 表现力，突出说话者对某个特定时间点的态度或情感。 例如，在句子"If I had known the answer yesterday, I would have told you."中，虚拟语气"had known" 与时间状语从句的时态"yesterday"不一致，强调了说 话者对过去的遗憾或后悔。
虚拟语气在条件状语从 句中的用法(if条件句)
目录
CONTENTS
• 虚拟语气在条件状语从句中的基本结构 • 虚拟语气在条件状语从句中的用法 • 虚拟语气在条件状语从句中的特殊情况 • 虚拟语气在条件状语从句中的实际应用
01 虚拟语气在条件状语从句 中的基本结构
if条件状语从句课件
用法： 1. 如果主句是祈使句，从句要用 一般现在时。 Don’t go and play football if you don’t finish your homework. Please call me if he comes next Sunday.
2. 如果主句是一般将来时， if从句则用一般现在时。 If it rains（从句）， I will stay at home. I’ll go with you if you don’t want to go alone（从句）. 3.如果主句含有must, may, can 等情态动 词，if从句也要用一般 现在时。 If you drive too fast, you may have an accident. You must stop if the traffic is red.
主将从现 祈使句 情态动词 I will sing a song if I am happy.
Don’t cross the road if the light is red You must stop if the traffic light is red.
if （如果）引导的条件状语从句:
Grammar
If 引导条件状语从句
定义：if
“如果, 假如” 它引导的句子表示某事发 生所需的条件，即“在…条件下，某事才能发生”， 在句子中充当状语，因此称之为条件状语从句。 （ If引导的条件状语从句表示假如有从句的动作发 生，就会有主句动作的发生 ）
位置：从句可放在主句之前或之后，但是放在主句之
Remember:
• 1.主祈从现 • 2.主将从现 if… will/won’t • 3.主情（can，may，should， must）从现
2. 如果主句是一般将来时， if从句则用一般现在时。 If it rains（从句）， I will stay at home. I’ll go with you if you don’t want to go alone（从句）. 3.如果主句含有must, may, can 等情态动 词，if从句也要用一般 现在时。 If you drive too fast, you may have an accident. You must stop if the traffic is red.
主将从现 祈使句 情态动词 I will sing a song if I am happy.
Don’t cross the road if the light is red You must stop if the traffic light is red.
if （如果）引导的条件状语从句:
Grammar
If 引导条件状语从句
定义：if
“如果, 假如” 它引导的句子表示某事发 生所需的条件，即“在…条件下，某事才能发生”， 在句子中充当状语，因此称之为条件状语从句。 （ If引导的条件状语从句表示假如有从句的动作发 生，就会有主句动作的发生 ）
位置：从句可放在主句之前或之后，但是放在主句之
Remember:
• 1.主祈从现 • 2.主将从现 if… will/won’t • 3.主情（can，may，should， must）从现
高考英语if条件状语从句课件(共34张PPT)
If条件句：条件句用于陈述语气，表示假设的情况可能发生，
其中 if 是“如果”的意思。
构 成
条件从句
主句
时 态
If＋一般现在时 主语＋shall/will+动词原形
例 句
If he comes,
he will take us to the zoo.
用法：
1. 如果主句是一般将来时，从句则用一般现在时。
3. 如果主句是祈使句，从句同样要用一般现在时。
Don’t go and play football if you don’t finish your homework.
Please call me if he comes next Sunday.
4.表示假设，表示将会发生和可能发生的事，
或进行提醒警告。 If +句子（一般现在时），+主句（主语will/may/can) +动词）
a good one.
4. If the light _d_o_e_s_n_’t__co_m__e_ (not come) on, _w__a_it (wait) for one minute.
If 条件状语从句（1）
句型结构
祈使句+if条件状语从句 if条件状语从句，+祈使句（从句后加逗号）
时态
果不早点起床，上学就会迟到。
2. If I play games on it , it will go wrong .
如果我用它玩游戏，它就会坏掉。
3. If you finish the homework， you can go home． 如果你作业做完了就可以回家了。
4. If you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。 5.If you heat ice it turns to water. (也可用will turn) 如果把冰加热，它就会化成水。
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。
虚拟语气课件(if ,wish)
A
A
B
B
B
3. I didn’t know her telephone number and I didn’t call her. If I had known her telephone number, I would have called her. 与过去事实相反的假设虚拟： 句型：If sb. had done sth. , sb. would/ could/ should / might have done sth.
如果我有一台靓车， 我就很开心啦
If I had a beautiful car, I would be very
happy.
Unit1 Grammar
本节课的学习内容
• • • • 1.了解虚拟语气的定义 2.掌握if条件句中的虚拟语气 3.掌握if条件句中的虚拟语气的省略 4.掌握虚拟语气在wish后的宾的定义
虚拟语气表示说话人所说的话不是事实， 而是一种假设，愿望，怀疑或推测。 它主要用于if条件状语从句，也可以用于 主语，表语，宾语从句等。 P86
1.I suggest that you should study hard. 虚拟语气 2.If I had enough money ,I would treat you all to ice creams. 虚拟语气
二：If条件句中的虚拟语气
• 它可以表示对过去，现在，将来情 况的虚拟
判断以下句子表示的是过去，现在，还是将来的情 况 1. I don’t have a car and I’m not happy. 现在的事实 2. I’m not a bird. I can’t fly. 现在的事实 3. I didn’t know her telephone number and I didn’t call her. 过去的事实 4. I won’t go there. So I won’t meet him there.
虚拟语气在条件状语从句中用法if条件句
虚拟语气
Exercises
1. Alan ___ the party if he had gone to London.
2. A. would have missed B. had missed
3. C. would miss
D. missed
4. 2. If I knew you were coming, I ___ you at the airport.
She was honoured by people all over the world,
Because She was an inventor and a scientist .
Because She was given the
Nobel Prize for Chemistry in
1911 .
• If I were a designer , I would design a spaceship .
• If I were clever enough , I would have designed a spaceship.
• If I were an astronaut , I would travel into space.
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
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If only I knew his name!
If only we had followed your advice!
If only I could see him again! • 要是我们的父母能和我们住在一起就好了。
• 要是我没错过火车就好了！ If only our parents could live with us! If only I hadn’t missed the train!
told you . If I had finished my homework , I would
have gone to bed. If I had known his telephone number , I
would have made a phone to him
虚拟语气在条件状语从句中的 用法（if条件句）
If the weather had been finer, the crops would be growing still better.
If you had followed the teacher’s advice, you wouldn’t be in hospital.
3. If only …(要是…就好了)依照假设的时间 而定。
Chinese Woman Football Team
They lost the game,
Because they were tired.
Because a lot of them had pains.
Because they didn’t take the opponents seriously.
Were it not to rain tomorrow , we would have a picnic.
Should it rain tomorrow , we would have a picnic.
虚拟语气假设条件句型注意点： 2.假设条件从句谓语动词发生的时间与主句
所假设的谓语动词不一致，叫做错综条件 虚拟语气。主句和从句的谓语动词要依照 假设的时间而定。
Because they didn’t get prepared for it.
Chinese Woman Football Team
They would win,
if they got prepared for it.
if they trained very hard.
if they acted actively in the court.
He was great,
Because he grows rice that has a high output
Because he finds ways to grow more rice.
Because he circulates his knowledge abroad
Because he gives money to equip others for their research
Learning about Language
We enjoyed learning English
Because English is a very beautiful language.
Because we can enjoy a lot of funny stories if we know English.
if they were confident in themselves.
Subjunctive Mood
Activity
Compare the sentences :
If I knew it , I would tell you. If I had known it yesterday , I would have
3. were to do
虚拟语气假设条件句型注意点： 1.假设条件状语从句中谓语动词部分是
were+to do , had done 或是should +do时可把 if 省略，把were , had , should提前, 引起倒装。
Had I not seen it with my own eyes , I would not have believed it.
Because She was an inventor and a scientist .
Because She was given the
Nobel Prize for Chemistry in
1911 .
Because She is the only woman
scientist who was awarded Nobel Prize for two times
Because we can communicate with foreigners in English.
Because we can introduce China to foreigners if we know English.
Yao Ming is famous .
Because he played basketball very well. Because he played basketball in the USA. Because he played a lot of ads. Because he was very tall.
Liu xiang succeed,
Because he ran very fast. Because he trained very hard. Because he had a good coach. Because he had a healthy and strong body.
She was honoured by people all over the world,
条件从句 If 从句的谓语形式 主句的谓语形式
现在
did / ere
would/could/should/ might +V.(原)
过去
had done
would/could/should/ might+have+p.p.
未来
1. did / were 2. should do
would/could/should/ might + V.(原)
If only we had followed your advice!
If only I could see him again! • 要是我们的父母能和我们住在一起就好了。
• 要是我没错过火车就好了！ If only our parents could live with us! If only I hadn’t missed the train!
told you . If I had finished my homework , I would
have gone to bed. If I had known his telephone number , I
would have made a phone to him
虚拟语气在条件状语从句中的 用法（if条件句）
If the weather had been finer, the crops would be growing still better.
If you had followed the teacher’s advice, you wouldn’t be in hospital.
3. If only …(要是…就好了)依照假设的时间 而定。
Chinese Woman Football Team
They lost the game,
Because they were tired.
Because a lot of them had pains.
Because they didn’t take the opponents seriously.
Were it not to rain tomorrow , we would have a picnic.
Should it rain tomorrow , we would have a picnic.
虚拟语气假设条件句型注意点： 2.假设条件从句谓语动词发生的时间与主句
所假设的谓语动词不一致，叫做错综条件 虚拟语气。主句和从句的谓语动词要依照 假设的时间而定。
Because they didn’t get prepared for it.
Chinese Woman Football Team
They would win,
if they got prepared for it.
if they trained very hard.
if they acted actively in the court.
He was great,
Because he grows rice that has a high output
Because he finds ways to grow more rice.
Because he circulates his knowledge abroad
Because he gives money to equip others for their research
Learning about Language
We enjoyed learning English
Because English is a very beautiful language.
Because we can enjoy a lot of funny stories if we know English.
if they were confident in themselves.
Subjunctive Mood
Activity
Compare the sentences :
If I knew it , I would tell you. If I had known it yesterday , I would have
3. were to do
虚拟语气假设条件句型注意点： 1.假设条件状语从句中谓语动词部分是
were+to do , had done 或是should +do时可把 if 省略，把were , had , should提前, 引起倒装。
Had I not seen it with my own eyes , I would not have believed it.
Because She was an inventor and a scientist .
Because She was given the
Nobel Prize for Chemistry in
1911 .
Because She is the only woman
scientist who was awarded Nobel Prize for two times
Because we can communicate with foreigners in English.
Because we can introduce China to foreigners if we know English.
Yao Ming is famous .
Because he played basketball very well. Because he played basketball in the USA. Because he played a lot of ads. Because he was very tall.
Liu xiang succeed,
Because he ran very fast. Because he trained very hard. Because he had a good coach. Because he had a healthy and strong body.
She was honoured by people all over the world,
条件从句 If 从句的谓语形式 主句的谓语形式
现在
did / ere
would/could/should/ might +V.(原)
过去
had done
would/could/should/ might+have+p.p.
未来
1. did / were 2. should do
would/could/should/ might + V.(原)