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1、初中精品资料 欢迎下载 状语从句 用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句，原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。1.时间状语从句(1)时间状语从句常用 when,as,while,before,after,since,till,until,as soon as等连词来引导。.It was raining hard when got to school yesterday.While he was doing his homework,the telephone rang.(2)在时间状
2、语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。.Ill ring you up as soon as I get to New York.(3)在带有 till 或 until 引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到才”,“在以前不”,谓语动词可用瞬间动词。.The young man read till the light went out.Lets wait until the rain stops.2.条件状语从句(1)条件状语从句通常由 if,unless 引导。.What sh
3、all we do if it snows tomorrow?Dont leave the building unless I tell you to.(2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。.Ill help you with your English if am free tomorrow.He wont be late unless he is ill.(3)“祈使句+and(or)+陈述句”在意思上相当于一个带有条件状语从句的复合句。.：Hurry up,or youll be late.=If you dont hurry up,youll be late
4、.Study hard and you will pass the exam.=If you study hard,you will pass the exam.3.原因状语从句(1)原因状语从句通常由 because,since,as 引导。.He didnt come to school because he was ill.As it is raining,we shall not go the zoo.Since you cant answer the question,Ill ask someone else.初中精品资料 欢迎下载(2)because 表示直接原因，语气最强。Bec
5、ause 引导的原因状语从句多放在主句之后。回答由 why 提出的问题，只能用 because。As 和 since 语气较弱，一般用来表示明显的原因。由as 和 since 引导的原因状语从居多放在句首。.-Why arent going there?-Because I dont want to.As he has no car,he cant get there easily.Since we have no money,we cant buy it.(3)because 和 so 不能同用在一个句子里。4.结果状语从句(1)结果状语从句由 sothat,suchthat,so that
6、 引导。.He is so poor that he cant buy a bike for his son.She is such a good teacher that everybody likes her.My pencil fell under the desk,so that I couldnt see it.(2)sothat 语 such.that 可以互换。.在由 so.that 引导的结果状语从句中，so 是副词，与形容词连用。其结构是:“.so+形容词（副词）+that+从句”。He was so glad that he couldnt say a word.The h
7、all is so big that it can hold 2,000 people.Mother lives so far away that we hardly ever see her.5.比较状语从句 比较状语从句通常由 asas,比较级+than等连词引导。.Tom runs faster than John does.This classroom is as big as that one.6.目的状语从句(1)目的状语从句通常由 so that,in order that 引导。.We started early so that we could catch the first
8、 train.He studies hard so that he could work better in the future.We used the computer in order that we might save time.(2)so that 既可引导目的状语从句，又可引导结果状语从句。区别这两种从句的办法有两个：1)目的状语从句里往往带有情态动词 can,could,may,might 等。2)从意思上看，目的状语从句往往表示的目的很明确。.Speak clearly so that they may understand you.(目的状语从句)Jack is badly
9、 ill so that he has to rest.(结果状语从句)7.让步状语从句(1)让步状语从句通常由 although,though 等连词引导。Though he is young,he knows a lot.Although I am tired,I must go on working.为时间状语从句地点状语从句条件状语从句原因状语从句结果状语从句比较状语从句目的状语从句让步状语从句时间状语从句时间状语从句常用等连词来引导在时间状语从句里通常不用将来时态用现在时态表示将来的动作或状态在主句用否定式其含义是直到才在以前不谓语动词可用瞬间动词条件状语从句条件状语从句通常由引导在
10、条件状语从句里谓语动词通常用现在时态表示将来的动作或状态祈使句陈述句在意思上相当于一个带有条件状语从句的复合句原句之后回答由提出的问题只能用和语气较弱一般用来表示明显的原因由和引导的原因状语从居多放在句首和不能同用在一个句子里结果状语从句结果状语从句由引导语可以互换在由引导的结果状语从句中是副词与形容词连用其结构初中精品资料 欢迎下载(2)although(though)不能用在同一个句子中。.我们不能说：Though it was raining hard,but he still went out.应该说：Though it was raining hard,he still went o
11、ut.或 It was raining hard,but he still went out.8.地点状语从句 地点状语从句常常由 where 来引导。Go where you like.Where there is a will,there is a way.一.选择题 1._ hes old,he can still carry this heavy bag.A.Though B.Since C.For D.So 2.-Do you know if he _ to play basket ball with us?-I think he will come if he _ free tom
12、orrow.A.comes;is B.comes;will be C.will come;is D.will come;will be 3.In the zoo if a child _ into the water and cant swim,the dolphins may come up _ _ him.A.will fall;to help B.falls;to help C.will fall;help D.falls;helping 4.I dont remember _ he worked in that city when he was young.A.what B.which
13、 C.where D.who 5.We will stay at home if my aunt _ to visit us tomorrow.A.comes B.come C.will come D.is coming 6.The police asked the children _ cross the street _ the traffic lights turned green.A.not;before B.dont;when C.not to;until D.not;after 7.I was late for class yesterday _ there was somethi
14、ng wrong with my bike.A.when B.that C.until D.because 8.Ill go swimming with you if I _ free tomorrow.A.will be B.shall be C.am D.was 9.In the exam,the _ you are,_ the _ mistakes you will make.A.careful;little B.more careful;fewest C.more careful;fewer D.more careful;less 10.You should finish your l
15、essons _ you go out to paly.A.before B.after C.when D.while 11.I hurried _ I wouldnt be l ate for class.A.since B.so that C.as if D.unless 12.When you read the book,youd better make a mark _ you have any questions.为时间状语从句地点状语从句条件状语从句原因状语从句结果状语从句比较状语从句目的状语从句让步状语从句时间状语从句时间状语从句常用等连词来引导在时间状语从句里通常不用将来时态用
16、现在时态表示将来的动作或状态在主句用否定式其含义是直到才在以前不谓语动词可用瞬间动词条件状语从句条件状语从句通常由引导在条件状语从句里谓语动词通常用现在时态表示将来的动作或状态祈使句陈述句在意思上相当于一个带有条件状语从句的复合句原句之后回答由提出的问题只能用和语气较弱一般用来表示明显的原因由和引导的原因状语从居多放在句首和不能同用在一个句子里结果状语从句结果状语从句由引导语可以互换在由引导的结果状语从句中是副词与形容词连用其结构初中精品资料 欢迎下载 A.which B.that C.where D.though 13.The teacher raised his voice _ all t
17、he students could hear him.A.for B.so that C.because D.in order 14.He took off his coat _ he felt hot.A.because B.as C.if D.since 15.It is _ that wed like to go out for a walk.A.a lovely day B.too lovely a day C.so lovely a day D.such lovely a day 16.Mary had _ much work to do that she stayed at her
18、 office all day.A.such B.so C.too D.very 17._ I felt very tired,I tried to finish the work.A.Although B.Because C.As D.As if 18._ the day went on,the weather got worse.A.With B.Since C.While D.As 19._ well you can drive,you must drive carefully.A.So long as B.In order that C.No matter how D.The mome
19、nt 20.Write to me as soon as you _ to Beijing.A.will get B.get C.getting D.got 为时间状语从句地点状语从句条件状语从句原因状语从句结果状语从句比较状语从句目的状语从句让步状语从句时间状语从句时间状语从句常用等连词来引导在时间状语从句里通常不用将来时态用现在时态表示将来的动作或状态在主句用否定式其含义是直到才在以前不谓语动词可用瞬间动词条件状语从句条件状语从句通常由引导在条件状语从句里谓语动词通常用现在时态表示将来的动作或状态祈使句陈述句在意思上相当于一个带有条件状语从句的复合句原句之后回答由提出的问题只能用和语气较弱一般用来表示明显的原因由和引导的原因状语从居多放在句首和不能同用在一个句子里结果状语从句结果状语从句由引导语可以互换在由引导的结果状语从句中是副词与形容词连用其结构