初中状语从句精讲课件.ppt

1、专题句型专题句型状语从句状语从句?考点揭密考点揭密?中考考点设置中考考点设置?典型例题解析典型例题解析?课时训练课时训练?考点揭密考点揭密在复合句中修饰主句中的动词、形容词或副词，在复合句中修饰主句中的动词、形容词或副词，起状语作用的从句叫状语从句。状语从句可置主语之起状语作用的从句叫状语从句。状语从句可置主语之前，也可置主语之后。前，也可置主语之后。前置时，从句后用逗号与主句前置时，从句后用逗号与主句分开；分开；后置时，与主句之间无标点符号。后置时，与主句之间无标点符号。状语从句可分为状语从句可分为时间、原因、目的、结果、条件、时间、原因、目的、结果、条件、比较、地点、比较、地点、让步、方式

2、等九类。让步、方式等九类。e.g.If you go to the party,you willhave a good time.e.g.You will have a good time If yougo to the party.?中考考点设置中考考点设置1.(1)引导词：引导词：when,while,as,before,after,as soon as,until/till,since.e.g.Mother was cooking dinner when当当的时候的时候”）when“I reached home.(e.g.While the girl was shopping,the U

3、FO landed.（While“当当的时候的时候”）e.g.As he was reading,he was listening to the radio.（As“一边一边一边一边”）e.g.Dont close the window beforeyou go to bed.(before 在在之前）之前）e.g.After I had done my homework,I went to bed.e.g.The Greens has lived here sincethey came to China.(since 引导的时间壮引导的时间壮语从句若用一般过去时，主句则用现在完成时语从句若用

4、一般过去时，主句则用现在完成时e.g.I will write to you as soon asI get to Beijing.e.g.I will tell him when he comes back.e.g.I wont go to bed until I finish my homework.注意注意时间壮语时间壮语从句从句中若用中若用一般将来时一般将来时，从句从句则用则用一般现在时一般现在时表示将来，即遵循表示将来，即遵循“主将主将从现从现”的原则。的原则。(3)not.until的同义句替换。的同义句替换。notuntil在否定句中在否定句中表示表示“直到直到才才”主句中的动词

5、常用主句中的动词常用终止性动词终止性动词,这时这时till/until可用可用before替换替换e.g.I didnt leave until/till/before she came back.（leave是个短暂性动词）是个短暂性动词）till/until 在肯定句中在肯定句中表示表示“直到为止直到为止”主主句中动词用句中动词用延续性动词延续性动词e.g.I waited till/until he arrived.(wait是一个延续性动词）是一个延续性动词）practice:1.I will go to bed as soon as I _myChomework.A.will fin

6、ish B.finishing C.finish4.I will not watch TV until I finish myhomework.before=I will not watch TV _ I finish My homework.was reading2.My sister _(read)her bookin the classroom when her teachercame in.was doing3.I my_(do)homeworkwere watchingwhile my parents_(watch)TV last night.2.(1)引导词：引导词：if,unle

7、ss.e.g.If I am free,I will call you.e.g.If it doesnt rain,we will go for a walk.unless是从属连词，它引导条件壮语从句，译作是从属连词，它引导条件壮语从句，译作“除非除非否则的话否则的话”e.g.You will be late for class unless you startright now.除非除非你现在出发你现在出发否则的话否则的话年上学就会迟到的。年上学就会迟到的。e.g.You will not succeed unless you work hard.(2)遵循遵循“主将从现主将从现”的原则的

8、原则,(即主句若为一般将来时，即主句若为一般将来时，从句用一般现在时代替将来。从句用一般现在时代替将来。)(3)if.not与与unless(=ifnot)及及or的同义句转换。的同义句转换。例句例句.Hurry up,or you will be late.=If you dont hurry up,you will be late.=Unless you hurry up,you will be late.例句例句.Study harder,or you will fail the exam.=If you dont study harder,you will fail the exam.

9、=Unless you study harder,you will fail the exam.小结小结:“祈使句祈使句+or+一般将来时的陈述句一般将来时的陈述句”结构中，结构中，Or表示转折，译作表示转折，译作“否则，不然的话否则，不然的话”相当于一个否定的条件状语从句。相当于一个否定的条件状语从句。相当于相当于If you dont(cant),you willpractice:go will1.If you _ to the party,you_have a good time.2.She _next Sundaywill go shoppingwont beif she_ busy.

10、3.Please hurry up,or you will miss the train.dont=_you _ hurry up,you will _ the trainIfmiss=_ you hurry up,you will miss the train.Unless4.Water the young trees as often asPossible,or they will die soon.=_you _ water the young trees as Ifdont often as possible,they will die soon.Unless=_ you water

11、the young trees as often as possible,they will die soon.?中考考点设置中考考点设置3.原因状语从句原因状语从句(1)引导词引导词:because,since,as.(3)because 不能与不能与so连用。连用。(4)because,since，as,for的区别：的区别：(2)对对because 原因状语提问用原因状语提问用“why”because 从句所表示的是对方不知道从句所表示的是对方不知道的的直接的原因直接的原因，因此在回答以，因此在回答以why引导引导的特殊疑问句的特殊疑问句时时只可用只可用because,它引导它引导的从句

12、可以位于主句前或主句后的从句可以位于主句前或主句后.而而as,since 引导的从句却不可；引导的从句却不可；例句例句:Li Hong didnt go to school yesterday,because he was ill.Why are you standing here?-Because Im waiting for my uncle.as从句所表示从句所表示比较明显的原因和理由比较明显的原因和理由(由于由于,既然既然)这种原因一般是这种原因一般是大家知道大家知道的的,一般一般从句说明原因从句说明原因，主主句说明结果句说明结果。其。其从句位于主句之前从句位于主句之前,e.g.As

13、the water was not deep,we were able to cross the river.(从句说明原因从句说明原因，主句说明结果主句说明结果)e.g.AS I knew he was ill,I didnt call him.since用来表示比较勉强的理由和原用来表示比较勉强的理由和原 或原由已为人们所或原由已为人们所知。知。e.g.Since you cant answer the question,（原由已为人们所知）（原由已为人们所知）Ill ask someone else.e.g.Since everybody is here,lets bigin the m

14、eeting（“大家都在这里大家都在这里”的原由已为人们所知）的原由已为人们所知）for往往用于附加理由证明。所说的理由是一种补充说明。往往用于附加理由证明。所说的理由是一种补充说明。分句前常有逗号分句前常有逗号，其引导的其引导的分句不可放于句首分句不可放于句首。例句：例句：Its spring now,for the flowers are out.Practice:1.Why hasnt Mr.Li come to work today.D-_he has gone to Beijing to have a meeting.A.If B.Until C.Though D.BecauseB2

15、.I decided to stop and have lunch,_ I wasfeeling quite hungry.A.Because of B.for C.AsA3.Because he was ill,he didnt_ go to school.A.so B./4.A.I stayed at home because of theweather was bad.()FB.I stayed at home because theTweather was bad.()C.I stayed at home because of thebad weather A()TShe is suc

16、h a great father that we all like him.such+a+adj+n(名单名单)+thatIt is such an red apple that I want to eat it.such+an+adj+n(名单名单)+that 小结小结:so+adj+a/an+n(单数）单数）+thatsuch+a/an+adj+n(单数）单数）+thatPractice:A1.It is _small a room _it cant hold so many People.A.so that,B.suchthat=It is _ a small room _it cant

17、 hold so many BPeople.A.so that,B.suchthat 2.He is _A young a boy_ he cant carry the box.B a young boy _ he cant carry the box.He is _A.so that,A.suchthat例句例句:It is such fine weather that people can go such+adj+n(不可数不可数)+thatswimming.例句例句:There are such beautiful flowers that we want tPick it.such+a

18、dj+n(pl)+that小结小结 such+adj+un/n(pl)+thatI have so little money that I cant buy the book.We have so many friends that we feel happy.We have so much homework that we tired.小结小结:一般情况下一般情况下,suchthat结构中用名词结构中用名词,但是但是,如果名词是用如果名词是用little,few,many,much 等等修饰时修饰时,要用要用so来表示来表示.“如此如此”so little(如此少如此少)+uso few (

19、如此少如此少)+cnso many(如此多如此多)+cnso much(如此多如此多)+u注意注意:little 若放在可数名词前若放在可数名词前,译作译作“小小”,而不是而不是“少少”要用要用such来表示来表示.Practice:B1.Mary had _to do that she was busy all day.A.So many work B.such much workB2.They were _little boys that they couldntgo to school.A.so B.suchsuch3.All of us feel surprised that he w

20、as _little boy eat_so_muchfood.A.so,so B.such,soReview:so+形形+a/an+名名(单数单数)such+a/an+形形+名名(单数单数)so+many/much/few/little+形形+名名 such+形形+不可数名词不可数名词/可数名词复数可数名词复数(4)so.that与与too.to和和.enough to间转换间转换tooto 可与可与not enough注意注意:1.所修饰词和所修饰的词是一对反义词所修饰词和所修饰的词是一对反义词.2.转换时转换时too放在所修饰词之前放在所修饰词之前.too+adjenough放在所修饰词之

21、后放在所修饰词之后.adj+enoughe.g.The boy is so young that he cant go to school.=The boy is too young to go to school.=The boy is not old enough to go to school.Practice:1.The room issmalltohold so many people.=The room is to hold not big enough so many people.that=The room is smallsotooit canthold so many pe

22、ople.?中考考点设置中考考点设置6.(1)引导词：引导词：though/（although）,even though/if.(2)though/不能与不能与but连用。连用。请判断正误，对的写请判断正误，对的写“T”，错误的写，错误的写“F”。A.Though I like looking after her,but she doesnt let me do it.()F B.Though I like looking after her,she Tdoesnt let me do it.()C.I like looking after her,but she doesnt let me

23、do it.()THiding from the rain and snow Hiding from the rain and snow Trying to forget but I wonTrying to forget but I won t let go t let go Looking at a crowded street Looking at a crowded street Listening to my own heart beatListening to my own heart beatSo many people all around the world So many

24、people all around the world Tell me where do I find someone like you girl Tell me where do I find someone like you girl Take me to your heart take me to your soul Take me to your heart take me to your soul Give me your hand before IGive me your hand before I m old m old Show me what love is-Show me

25、what love is-havenhavent got a clue t got a clue Show me that wonders can be true Show me that wonders can be true They say nothing lasts forever They say nothing lasts forever WeWere only here today re only here today Love is now or never Love is now or never Bring me far away Bring me far away Tak

26、e me to your heart take me to your soul Take me to your heart take me to your soul Give me your hand and hold me Give me your hand and hold me Show me what love is-Show me what love is-be my guiding star be my guiding star ItIts easy take me to your hearts easy take me to your heartStanding on a mou

27、ntain high Standing on a mountain high Looking at the moon through a clear blue sky Looking at the moon through a clear blue sky I should go and see some friends I should go and see some friends But they donBut they don t really comprehendt really comprehendDonDont need too much talking without sayi

28、ng anything t need too much talking without saying anything All I need is someone who makes me wanna singAll I need is someone who makes me wanna sing?典型例题解析典型例题解析【例【例1】Lucy knew nothing about it _her Bsister told her.2003 河北省河北省A.because B.untilC.if D.since【例【例2】Other people wont be pleased if he B

29、thequeue.2003 河南省河南省A.will jump B.jumpsC.jump D.jumped【例【例3】The young man travelled all over the worldA hehad a man-made leg.2003 A.though B.ifC.as D.because【例【例4】The students will go to Summer Palaceif itC tomorrow.2003 A.dont rain B.wont rainC.doesnt rain D.isnt rain?典型例题解析典型例题解析【例【例5】The driver h

30、urt the girl_badly_she A had to see a doctor.2003 A.so,that B.either,orC.too,to D.neither,nor【例【例6】Mrs Read didnt sleep well last night because the wind made too much noise.对句子划线部分提问对句子划线部分提问)Why didntsleep_Mrs.Read _well last night?【例【例7】David was so careless that he didnt find the mistakes in his

31、test paper.(改为简单句改为简单句)2003 too toDavid was_careless _ find the mistakes in his test paper.?课时训练课时训练.单项选择单项选择(B)1.He was_angry to hear the news that he couldnt say a word.A.so B.tooC.very D.much(A)2.Because his mother was ill,_he must stay at home to look after her.A./B.soC.that D.either3.Though the

32、 workers were very tired，_they went(C)on planting trees.A.and B.but C./D.so(C)4.They didnt watch TV_they finished their homework.A.after B.whenC.until D.as?课时训练课时训练(A)5.Ill write to you as soon as I_Beijing.A.get to B.arriveC.will get to D.will arrive6.Well have a trip if it_rain.(D)A.wont B.will C.

33、dont D.doesnt7._you hurry up,or we will be late for school.(C)A.If B./C.Unless D.When8.He saves money_he can buy some birthday(B)presents for his mother.A.so B.so thatC.such that D.in order9.Why are you late for school?(A)_ I got up late.A.Because B.ForC.Since D.As?课时训练课时训练10.The flowers_well if the

34、y_.A.wont grow,dont take good care ofB.dont grow,are taken good care ofC.dont grow,dont take good care ofD.wont grow,are not taken good care of(D)11.He asked_many strange questions that(A)the teacher didntt want to teach him any more.A.so B.suchC.too D.very12.Ann is so careful that she always goes o

35、ver her(B)exercises tothere are no mistake.A.look for B.make sureC.find out D.think about13.I have my own car,so I_drive where I want to go.(D)A.must B.have C.need to D.can?课时训练课时训练14.The old man was quite weak after the accident,so heCA.must be takes care of B.must take care ofC.must be looked afte

36、rD.must look after15.The man had gone away _ the old man said Dthanks to him.A.that B.soC.until D.before?课时训练课时训练.句型转换，将下列各句改为同义句句型转换，将下列各句改为同义句1.Hurry up or youll be late for school._you _hurry up youll be late for school.dont If _you hurry up,youll be late for school.Unless 2.Ill do my homework wh

37、en my mother comes back.I_ do my homework _my mothercomes back.wont until 3.This question is so hard that no one can answer it.This is_ _ _that no one can answer it.such a hard4.Because he was ill,he didnt go to school.He was ill,_he didnt go to school.so 5.Though he was tired,he went on working.but

38、 He was tired,_he went on working.?课时训练课时训练6.The ice on the lakez was so thin that people couldnt skate on it.enough fornot The ice on the lake was _thick _ _to skate onpeople_ _ _.7.The girl was too excited to say a word.thatThe girl was _excited_he couldnt say a word.so 8.The men was so old that h

39、e couldnt climb the hill.too to The man was _old _climb the hill.9.unless you are brave youll lose your chance.are _you _brave,youll lose your chance.If or _brave,_ youll lose your chance.Be 10.The weather is so fine that people can go out for a walk.It is_ _ _that people can go out for a walk.such

40、fine weather?课时训练课时训练11.Its such a small room that it cant hold too many people.so small aIts _ _ _room that it cant hold too many people.12.He had breakfast before he went to school.didnt haveuntil He _ _breakfast _he went to school.13.When he was 12,he started writing his own newspaper.At the age of_ _ _ _12,he started writing his own newspaper.5.(1)引导词：引导词：as.as,not as(so).as,than(2)not as(so).as 与与than(3)as.as,not as(so).as 中间用形容词或副词的中间用形容词或副词的原形。原形。7.(1)引导词引导词where,wherever.(2)wherever=no matter where8.引导词：引导词：as if,as though.