初中英语状语从句精讲.ppt

专题句型状语从句,考点揭密中考考点设置典型例题解析课时训练,考点揭密,在复合句中修饰主句中的动词、形容词或副词或句子，起状语作用的从句。由从属连词引导，从属连词在从句中不充当句子成分。状语从句可置主语之前，也可置主语之后。前置时，从句后用逗号与主句分开；后置时，与主句之间无标点符号。状语从句可分为时间、原因、目的、结果、条件、比较、地点、让步、方式等九类。,e.g.If you go to the party,you will have a good time.e.g.You will have a good time If you go to the party.,中考考点设置,1.时间状语从句(1)引导词：when,while,as,before,after,as soon as,until/till,since.,e.g.Mother was cooking dinner when I reached home.(when“当的时候”）,e.g.While the girl was shopping,the UFO landed.（While“当的时候”）,e.g.Dont close the window before you go to bed.(before 在之前）,e.g.As he was reading,he was listening to the radio.（As“一边一边”）,e.g.After I had done my homework,I went to bed.,e.g.The Greens has lived here since they came to China.(since 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,时间壮语从句中若用一般将来时，从句 则用一般现在时表示将来，即遵循“主将 从现”的原则。,e.g.I will write to you as soon as I get to Beijing.,e.g.I will tell him when he comes back.,注意,e.g.I wont go to bed until I finish my homework.,(3)not.until的同义句替换。notuntil在否定句中表示“直到才”，主句中的动词常用终止性动词,这时till/until可用before替换,till/until 在肯定句中表示“直到为止”主 句中动词用延续性动词 e.g.I waited till/until he arrived.(wait是一个延续性动词）,e.g.I didnt leave until/till/before she came back.（leave是个短暂性动词）,practice:,1.I will go to bed as soon as I _my homework.A.will finish B.finishing C.finish,C,4.I will not watch TV until I finish my homework.=I will not watch TV _ I finish My homework.,before,2.My sister _(read)her bookin the classroom when her teacher came in.,was reading,3.I my_(do)homework while my parents_(watch)TV last night.,was doing,were watching,(3)if.not与unless(=ifnot)及or的同义句转换。,(2)遵循“主将从现”的原则,(即主句若为一般将来时，从句用一般现在时代替将来。),2.条件状语从句(1)引导词：if,unless.,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“除非否则的话”,e.g.You will be late for class unless you start right now.除非你现在出发否则的话年上学就会迟到的。e.g.You will not succeed unless you work hard.,小结:“祈使句+or+一般将来时的陈述句”结构中，Or表示转折，译作“否则，不然的话”相当于一个否定的条件状语从句。相当于If you dont(cant),you will,例句.Study harder,or you will fail the exam.=If you dont study harder,you will fail the exam.=Unless you study harder,you will fail the exam.,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.,practice:,1.If you _ to the party,you_ have a good time.,go,will,2.She _next Sunday if she_ busy.,will go shopping,wont be,3.Please hurry up,or you will miss the train.=_you _ hurry up,you will _ the train.=_ you hurry up,you will miss the train.,4.Water the young trees as often as Possible,or they will die soon.=_you _ water the young trees as often as possible,they will die soon.=_ you water the young trees as often as possible,they will die soon.,If,dont,Unless,If,dont,Unless,miss,中考考点设置,3.原因状语从句,(1)引导词:because,since,as.,(2)对because 原因状语提问用“why”。,(3)because 不能与so连用。,(4)because,since，as,for的区别：,Why are you standing here?-Because Im waiting for my uncle.,because 从句所表示的是对方不知道的直接的原因，因此在回答以why引导的特殊疑问句时只可用because,它引导的从句可以位于主句前或主句后.而as,since 引导的从句却不可；,例句:Li Hong didnt go to school yesterday,because he was ill.,as从句所表示比较明显的原因和理由(由于,既然)这种原因一般是大家知道的,一般从句说明原因，主句说明结果。其从句位于主句之前,since用来表示比较勉强的理由和原或原由已为人们所知。,e.g.As the water was not deep,we were able to cross the river.(从句说明原因，主句说明结果),e.g.AS I knew he was ill,I didnt call him.,e.g.Since everybody is here,lets bigin the meeting（“大家都在这里”的原由已为人们所知）,e.g.Since you cant answer the question,（原由已为人们所知）Ill ask someone else.,for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，其引导的分句不可放于句首。例句：Its spring now,for the flowers are out.,Practice:Why hasnt Mr.Li come to work today.-_he has gone to Beijing to have a meeting.A.If B.Until C.Though D.Because2.I decided to stop and have lunch,_ I was feeling quite hungry.Because of B.for C.As,D,B,3.Because he was ill,he didnt_ go to school.A.so B./,4.A.I stayed at home because of the weather was bad.()B.I stayed at home because the weather was bad.()C.I stayed at home because of the bad weather A(),A,F,T,T,中考考点设置,例句:She is so great a father that we all like him.,4.目的状语和结果状语(1)目的状语从句引导词：so that从句中常用情态动词(can/could)E.g.Speak slowly so that we can understand you.(2)结果状语从句引导词：so+adj+that,such+n+that,so,+adj,+a,+n(名单),+that,例句:It is so red an apple that I want to eat it.,so,+adj,+an,+n(名单),+that,(3)so与such的区别,She is such a great father that we all like him.,such,+a,+adj,+n(名单),+that,It is such an red apple that I want to eat it.,such,+an,+adj,+n(名单),+that,小结:so+adj+a/an+n(单数）+that such+a/an+adj+n(单数）+that,1.It is _small a room _it cant hold so many People.A.so that,B.suchthat=It is _ a small room _it cant hold so many People.A.so that,B.suchthat,Practice:,A,B,2.He is _young a boy_ he cant carry the box.He is _ a young boy _ he cant carry the box.A.so that,A.suchthat,例句:It is such fine weather that people can go swimming.,such,+adj,+n(不可数),+that,例句:There are such beautiful flowers that we want to Pick it.,such,+adj,+n(pl),+that,小结 such+adj+un/n(pl)+that,A,B,I 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:一般情况下,suchthat结构中用名词,但是,如果名词是用little,few,many,much等 修饰时,要用so来表示.“如此”so little(如此少)+u so few(如此少)+cn so many(如此多)+cn so much(如此多)+u注意:little 若放在可数名词前,译作“小”,而不是“少”要用such来表示.,Review:so+形+a/an+名(单数)such+a/an+形+名(单数)so+many/much/few/little+形+名 such+形+不可数名词/可数名词复数,Practice:1.Mary had _to do that she was busy all day.So many work B.such much work2.They were _little boys that they couldnt go to school.A.so B.such3.All of us feel surprised that he was _little boy eat_ _much food.A.so,so B.such,so,B,B,such,so,(4)so.that与too.to和.enough to间转换 tooto 可与not enough注意:1.所修饰词和所修饰的词是一对反义词.2.转换时too放在所修饰词之前.too+adj enough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:The room is small hold so many people.=The room is to hold so many people.=The room is small it cant hold so many people.,too,to,not big enough,so,that,中考考点设置,5.让步状语从句(1)引导词：though/（although）,even though/if.,(2)though/不能与but连用。,请判断正误，对的写“T”，错误的写“F”。,A.Though I like looking after her,but she doesnt let me do it.(),B.Though I like looking after her,she doesnt let me do it.(),C.I like looking after her,but she doesnt let me do it.(),F,T,T,6.比较状语从句(1)引导词：as.as,not as(so).as,than(2)not as(so).as与than的同义句替换。(3)as.as,not as(so).as中间用形容词或副词的 原形。7.地点状语从句(1)引导词where,wherever.(2)wherever=no matter where8.方式状语从句 引导词：as if,as though.,Have a,Have a,T,R,est?,est?,返回主页,【例1】Lucy knew nothing about it _her sister told her.2003 河北省 A.because B.until C.if D.since,典型例题解析,【例3】The young man travelled all over the world he had a man-made leg.2003 河南省 A.though B.if C.as D.because,B,【例2】Other people wont be pleased if he the queue.2003 河南省 A.will jump B.jumps C.jump D.jumped,B,A,【例4】The students will go to Summer Palace if it tomorrow.2003 甘肃省 A.dont rain B.wont rain C.doesnt rain D.isnt rain,C,【例7】David was so careless that he didnt find the mistakes in his test paper.(改为简单句)2003 福州市 David was_careless _ find the mistakes in his test paper.,【例5】The driver hurt the girl_badly_she had to see a doctor.2003 新疆 A.so,that B.either,or C.too,to D.neither,nor,典型例题解析,A,【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)_Mrs.Read _well last night?,too to,Why didnt,sleep,.单项选择1.He was_angry to hear the news that he couldnt say a word.A.so B.too C.very D.much2.Because his mother was ill,_he must stay at home to look after her.A./B.so C.that D.either3.Though the workers were very tired，_they went on planting trees.A.and B.but C./D.so4.They didnt watch TV_they finished their homework.A.after B.when C.until D.as,课时训练,(B),(A),(C),(C),课时训练,5.Ill write to you as soon as I_Beijing.A.get to B.arrive C.will get to D.will arrive6.Well have a trip if it_rain.A.wont B.will C.dont D.doesnt7._you hurry up,or we will be late for school.A.If B./C.Unless D.When8.He saves money_he can buy some birthday presents for his mother.A.so B.so that C.such that D.in order9.Why are you late for school?_ I got up late.A.Because B.For C.Since D.As,(A),(D),(C),(B),(A),10.The flowers_well if they_.A.wont grow,dont take good care of B.dont grow,are taken good care of C.dont grow,dont take good care of D.wont grow,are not taken good care of,课时训练,(D),11.He asked_many strange questions that the teacher didntt want to teach him any more.A.so B.such C.too D.very,(A),12.Ann is so careful that she always goes over her exercises to there are no mistake.A.look for B.make sureC.find out D.think about,(B),13.I have my own car,so I_drive where I want to go.A.must B.have C.need to D.can,(D),14.The old man was quite weak after the accident,so he A.must be takes care of B.must take care of C.must be looked after D.must look after15.The man had gone away _ the old man said thanks to him.A.that B.so C.until D.before,课时训练,C,D,.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._you hurry up,youll be late for school.2.Ill do my homework when my mother comes back.I_ do my homework _my mothercomes back.3.This question is so hard that no one can answer it.This is_ _ _that no one can answer it.4.Because he was ill,he didnt go to school.He was ill,_he didnt go to school.5.Though he was tired,he went on working.He was tired,_he went on working.,课时训练,If,dont,Unless,wont,until,such a hard,so,but,6.The ice on the lakez was so thin that people couldnt skate on it.The ice on the lake was _thick _ _people_ _ _.7.The girl was too excited to say a word.The girl was _excited_he couldnt say a word.8.The men was so old that he couldnt climb the hill.The man was _old _climb the hill.9.unless you are brave youll lose your chanc._you _brave,youll lose your chance._brave,_ youll lose your chance.10.The weather is so fine that people can go out for a walk.It is_ _ _that people can go out for a walk.,课时训练,not,enough for,to skate on,so,that,too,to,If,are,Be,or,such fine weather,11.Its such a small room that it cant hold too many people.Its _ _ _room that it cant hold too many people.12.He had breakfast before he went to school.He _ _breakfast _he went to school.13.When he was 12,he started writing his own newspaper._ _ _ _12,he started writing his own newspaper.,课时训练,so small a,didnt have,until,At the age of,See you next time!,