初中虚拟语气课件

1、What would you do?,Unit 4,What will you do if there is a typhoon tomorrow?,typhoon,If there is a typhoon tomorrow, I will/ wont .,revision,1.If +, Ill / youll /+(动原）,条件,结果,从句,主句,主将从现,if 所引导的是真实的条件状语从句，即所假设的条件有可能成为现实, 表达所假设的条件实现时会出现的情况或会采取的行为。 其结构为：if +从句，主句 主句+if +从句,If there is a typhoon tomorrow,

2、I will stay at home.,=I will stay at home if there is a typhoon tomorrow.,要注意在状语从句中有一个规则是“主将从现”，即主句是一般将来时，则从句要用一般现在时表示将来。,if 引导真实的条件状语从句,时态主将从现,主句（结果）一般将来时,从句（条件）一般现在时,例句 如果你努力工作, 你的梦想将会实现。 If you work hard, your dream will come true. 例句 如果明天下雨, 我将不出去散步。 If it rains tomorrow, I wont go out for a wal

3、k.,What would you do if you had a lot of money?,I would buy a big house if I had a lot of money.,I would buy some snacks if I had a lot of money.,I would put it in the bank if I were you.,I would give it to charity if I were you.,句中的 if 引导条件状语从句，但这个条件往往不可能实现或者实现可能性极小的，或者与现在的事实相反，而仅仅是一种愿望、建议。我们称之为“虚拟

4、语气” 。 此时条件句常用一般过去时，主句用would + 动词原形的形式。,I would buy a big house if I had a lot of money.,I would put it in the bank if I were you.,虚拟语气,1. 语气就是我们常说的说话人说话的口气: 在汉语中，语气是由说话人说话的语调、情节等等表现出来的，动词没有任何变化。而在英语中，除了语调之外，最主要的是动词发生变化而表示不同的语气。在英语中语气分为三类：陈述语气、祈使语气、虚拟语气。 2. 虚拟语气： 如果我们所说的不是事实，也不是要求、命令、劝告等，而只是一种假设、愿望、建

5、议或是一种实现不了的空想就用虚拟语气。,3. 虚拟语气常用在条件状语从句中。 注意：条件句分两种，真实条件句和虚拟条件句。只有在虚拟(非真实)条件句中，才用虚拟语气，而在真实条件句中，要用陈述语气(主将从现)。,比较： (1) If it is sunny tomorrow , well go to the zoo.,(2) If I were you , I would go at once.,在这句话中，明天天气好是完全有可能实现的，并非虚拟、幻想，因此是真实条件句。在本句中，适用“主将从现。”,在这句话中，条件句，“如果我是你”，但事实上，我不可能成为你，这只是假设的情况，没有实现的可能

6、。这就需要用虚拟语气来表示，动词发生了变化。,如果明天天气好，我们将会去公园。,如果我是你的话，我立刻就走。,虚拟语气的疑问式，除了动词相应的变化外，其他变化与陈述语气相同 What would you do if you were in the lions cage ?如果你在狮子笼里，你会怎么做？,(疑问词在句首，主句中助动词提前，从句跟在主句后面。),If I were in the lions cage , Id call for help. 如果我在狮子笼里，我会大呼救命。 If I were in the lions cage. Id get out fast. 如果我在狮子笼里，

7、我会迅速出来。,虚拟语气结构,主语,+,would,d,+ 动词原形,注：当if 从句的谓语动词为be时，任何人称都可用 were 。,Exercises:,1.If my mother here now, she tell me what to do. A. were, will B. were, would C. is, would D. is, will,2. a friend said something bad about you, you say nothing? when, would B. if, will C. If, would D. when, will,3. If I

8、much money, I buy a big house. A. were, would B. have, will C. had, will D. had, would,4. If I _ you, Id wear a shirt and tie. A. wereB. wasC. amD. is,6. What_ you do if you won a million dollars? A. willB. wouldC. shall D. should 7. If I were a bird, I _ fly freely in the sky. A. willB. would C. would have C. were going to 8. If he _ here, thats very good. A. is B. wasC. wereD. has been 9. He _ learn quickly if he _ harder. A. would,