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1、初中状语从句精讲第1页,共32页,2022年,5月20日,12点55分,星期一考点揭密 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. 第2页,共32页,2022年,5月20日,
2、12点55分,星期一引导时间状语:after,before,when,while,until/till since,as soon as, no soonerthan, hardlywhen引导条件状语:if, unless, as long as引导原因状语:because, as, since, for, now that引导结果状语:so( that), sothat, suchthat引导目的状语:so that, in order that, in case引导让步状语:although, though, even though, even if, while ,however,wh
3、oever第3页,共32页,2022年,5月20日,12点55分,星期一中考考点设置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”)第4页,共32页,2022年,5月20日,12点55分,星期一e.g. Dont close th
4、e 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第5页,共32页,2022年,5月20日,12点55分,星期一 时间壮语从句中若用一般将来时,从句 则用一般
5、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.第6页,共32页,2022年,5月20日,12点55分,星期一(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
6、”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)第7页,共32页,2022年,5月20日,12点55分,星期一 practice:1. I will go to bed as soon as I _my homework. A. will finish B.finishing C. finishC 4. I will not watch TV until I finish my h
7、omework . =I will not watch TV _ I finish My homework . before第8页,共32页,2022年,5月20日,12点55分,星期一2.My sister _(read)her bookin the classroom when her teacher came in. was reading3.I _ (do)homework while my parents_(watch) TV last night.was doingwere watching第9页,共32页,2022年,5月20日,12点55分,星期一 (3)if.not与unle
8、ss(=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 n
9、ot succeed unless you work hard. 第10页,共32页,2022年,5月20日,12点55分,星期一小结:“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. H
10、urry up, or you will be late.=If you dont hurry up, you will be late.=Unless you hurry up, you will be late.第11页,共32页,2022年,5月20日,12点55分,星期一 practice: 1. If you _ to the party, you_ have a good time.go will 2. She _next Sunday if she_ busy. will go shopping is not第12页,共32页,2022年,5月20日,12点55分,星期一中考考点
11、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:第13页,共32页,2022年,5月20日,12点55分,星期一 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: L
12、i Hong didnt go to school yesterday,because he was ill.第14页,共32页,2022年,5月20日,12点55分,星期一 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
13、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.第15页,共32页,2022年,5月20日,12点55分,星期一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
14、 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. AsDB第16页,共32页,2022年,5月20日,12点55分,星期一3.Because he was ill, he didnt_ go to school. A. so B. / 4.A. I stayed at home becau
15、se 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 ( ) AFTT第17页,共32页,2022年,5月20日,12点55分,星期一第18页,共32页,2022年,5月20日,12点55分,星期一 He is such a great father that we all like him.such+a+adj+n(名单)+thatIt is such an red apple th
16、at 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)+that1.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:AB第19页,共32页,2022年,5月20日,12点55分,星期一2.He is _you
17、ng 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)+thatAB第20页,共32页,2022年,5
18、月20日,12点55分,星期一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
19、词前,译作“小”,而不是“少”要用such来表示. 第21页,共32页,2022年,5月20日,12点55分,星期一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 第22页,共32页,2022年,5月20日,12点55分,星期一(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+en
20、oughe.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.第23页,共32页,2022年,5月20日,12点55分,星期一中考考点设置 6.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 h
21、er, 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 TT第24页,共32页,2022年,5月20日,12点55分,星期一Have a Have a TRest?est?返回主页第25页,共32页,2022年,5月20日,12点55分,星期一【例1】 Lucy knew nothing about it _her siste
22、r 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 BA 【例4】 The students will go to Summer
23、Palace if it tomorrow.2003 甘肃省 A.dont rain B.wont rain C.doesnt rain D.isnt rain C 第26页,共32页,2022年,5月20日,12点55分,星期一【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 【第27页,共32页,2022年,5月20日,12点55分,星期一.单项选择1.He was_angry to hear the
24、 news . 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)(
25、A)(C)(C)第28页,共32页,2022年,5月20日,12点55分,星期一课时训练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)第29页,共32页,2022年,5月20日,12点55分,星期一10.The
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