Book6U3課件課時5Grammarandusage

1、( (模塊六模塊六 高二上學期高二上學期) )grammar and usage板塊：板塊：grammar教學設計教學設計課件課件作者：丁荷花作者：丁荷花unreal conditionals課件描述：課件描述： 本課件通過文字、本課件通過文字、表格和圖畫表格和圖畫對對虛擬語氣規(guī)則的講解，使得復雜的虛擬語氣規(guī)則的講解，使得復雜的語法通俗明了，淺顯易懂；還配上語法通俗明了，淺顯易懂；還配上相應的練習加以鞏固。相應的練習加以鞏固。1. 一般條件句中虛擬語氣的用法。一般條件句中虛擬語氣的用法。2. 一般條件句中虛擬語氣的倒裝。一般條件句中虛擬語氣的倒裝。3. 其他一些基本用法。其他一些基本用法。 一

2、般條件句中虛擬語氣的用法一般條件句中虛擬語氣的用法find out the sentences of unreal conditional mentioned in reading. if you had joined the chat room ten minutes ago, you would have known what we were talking about. if i got married in the uk, i would expect a present. if i got married in italy, i would have to give a presen

3、t. should you come to brunei, you would have to take off your shoes before going into someones house.1. state a present condition or situation eg. if i were you, i would ask my parents for help. if i had the chance, i might want to be a translator. 一般條件句中虛擬語氣的用法一般條件句中虛擬語氣的用法unreal present conditiona

4、ls:if were/did , would do 1. 假如我有更多的時間，我就會學習漢語。 if i had more time, i would study chinese.2. 要不是她這么忙要不是她這么忙,她就會出席今天下午的會議她就會出席今天下午的會議了。了。if she were not so busy, she would attend the meeting this afternoon.practice: tips: 1) would, could and might are often interchangeable, but with some difference i

5、n meaning. would intention; plan could ability; possibility might probability 2) in written english or in formal situation, we usually use were in if-clauses in place of was. however, in everyday conversation, was is often used.what would you do if you won the lottery?if i won the lottery, i would 2

6、. refer to an imaginary past action.e.g. unreal past conditionals :if had been/done , would/could/might have done 1) 如果他抓緊時間，他本來能趕上那趟火車。如果他抓緊時間，他本來能趕上那趟火車。 if he had hurried, he could have caught the train.2) 如果你昨天告訴他，他也許會提些建議了。如果你昨天告訴他，他也許會提些建議了。 if you had told him yesterday, he might have made so

7、me suggestions.3. unreal future conditionals.e.g.3. unreal future conditionals :if were/did/should/were to , would/should/might do e.g.1) 假如我要出國，我就會去中國。假如我要出國，我就會去中國。 2) 萬一明天下雨，我們的運動會就推遲。萬一明天下雨，我們的運動會就推遲。 表示與事實情況相反表示與事實情況相反 條件從句的謂語形式條件從句的謂語形式主句的謂語形式主句的謂語形式 表示與表示與現(xiàn)在事實現(xiàn)在事實情情況相反況相反(present)表示與表示與過去事實過去

8、事實情情況相反況相反(past)(past)表示與表示與將來事實將來事實情情況相反況相反(future)(future)過去式過去式(did/were)(be常用常用 were)過去式過去式(did)/(were)should + do were to do過去完成式過去完成式(had +done)would/could / might/should + dowould/could/ might/should +have donewould/could/ might/should + do虛擬語氣在條件從句中虛擬語氣在條件從句中we can also put should, were and

9、had at the beginning of an unreal conditional sentence. in this case, if is not needed any more.1) if you should make a mistake, you should not be embarrassed. should you make a mistake, you should not be embarrassed.條件句中虛擬語氣的倒裝條件句中虛擬語氣的倒裝2 ) if you had told me earlier, i would not have this problem

10、 now.had you told me earlier, i would not have this problem now.3) if you were to take the train, you would be there much sooner. were you to take the train, you would be there much sooner.注意注意: 如果省略的條件句中的謂語如果省略的條件句中的謂語動詞是否定形式時動詞是否定形式時,不能用動詞的不能用動詞的縮略形式縮略形式. _ she _ yesterday, she would meet the famo

11、us singer today.a. hadnt; left b. had; not leftc. if; didnt leave d. didnt; leave tipsb. had; not leftpractice fill in the blanks with the verbs given in the brackets in their proper forms.1. you didnt let me drive. if we (drive) in turn, you (not get) so tired.2. _it _(not be) for your help, i coul

12、dnt have made any progress.3. has mr. smith recovered now? yes. who (think) that such a serious illness could be cured?4. _it _(rain) tomorrow, the match would be called off.had driven wouldnt have got hadnot beenwould have thoughtwereto rain5. most of the students felt rather disappointed at the english party. they said that it (organize) better.6. jean doesnt want to work right away because she thinks that if (get) a job, she probably wouldnt be able to see her friends very often.7. much labour would have been saved if