条件状语从句和让步状语从句.pptx

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1、 1.条件状语从句引导状语从句的连接词有:if,unless=if notas long as on condition that in caseprovided/providing(that)suppose/supposing(that)第1页/共13页I.ifIf you work harder,you will succeed.Work harder,and you will succeed.Work harder,or you wont succeed.Working harder,you will succeed.第2页/共13页If 虚拟条件句时间时间If 条件句条件句主句主句过去

2、过去had donewould/could/should/might have done现在现在did/werewould/could/should/mightdo未来未来did/werewere toShould dowould/could/should/might do第3页/共13页II.unless=if not We cant write to Mary unless she tells us her address.We cant write to Mary if she doesnt tell us her address.III.as/so long as(只要)=only i

3、f 1)I will never give up learning as long as I live.2)You may borrow the book as long as you keep it clean.第4页/共13页 condition that（条件是）Well let you use the room on condition that you keep it tidy.case(万一）Youd better take your raincoat with you in case it rains/should rain.VI.suppose/supposing/provid

4、ed/providingSuppose/Supposing/Provided/Providing(that)they refuse us,who else can we turn to for help?第5页/共13页让步状语从句 引导让步状语从句的连词有：Although,though,as,even if,even though,no matter+疑问词,疑问词+everwhile,whetheror第6页/共13页although,though,as-虽然 although 常放在句首although 不倒装Though 可以倒装也可不用于倒装as 必须倒装（特殊结构）Althoug

5、h it was raining,the plane managed to take off.Though it was not his fault,he took all the blame.第7页/共13页As:（虽然）必须用一种特殊的倒装结构adj./n./adv./v.放句首+as+陈述语序1.clever as he is,he isnt diligent2.Child as he is,he knows a lot.3.Much as he likes it,he will not buy it.4.Try as he might,he cant find a job.（注：这里的

6、as 可以换成though)第8页/共13页Even if/even though-即使Even if you dont like your boss,you should do your work.Even though I might be wrong,I will go my way.第9页/共13页no matter+疑问词=疑问词+ever1.Whenever(no matter when)you come to our country,you will be warmly welcomed.2.Wherever(No matter where)he goes,he always b

7、rings two bodyguards with him.3.The father couldnt make his daughter smile however(no matter how)hard he tried.4.The old man wouldnt believe anything whatever(no matter what)you said.5.Whatever b(no matter what)good use you have made of time,you cant finish the task.第10页/共13页While-尽管While I have sympathy for you,I cant help you.While its none of my business,I will watch you.第11页/共13页Whether-不管，常与or not 连用Whether he is good or not,the company decided to send him abroad.Whether his proposal is practical or not,the department plans to adopt.第12页/共13页感谢您的观看！第13页/共13页