1、条件和时间状语从句的引导词状语从句的定义状语从句的时态总结及习题演练 第一部分 状语从句的定义 01从句？Lead-in从句？句子分类简单句并列句复合句名词性从句定语从句状语从句简单句or复合句？1.He sat there quietly.2.He looked around but he didnt see anyone else.3.I realized that I was the only passenger on the bus.4.When I was young,I could swim well.寻找从句 1.I realized that I was the only pa
2、ssenger on the bus.2.When I was young,I could swim well.从句就是在主句当中充当一定句子成分的小句子寻找状语Lucas destroyed the ant nest.Lucas destroyed the ant nest in the garden.Lucas destroyed the ant nest with a water gun in the garden.状语是用来修饰动词，形容词，副词或整个句子的句子成分。状语副词1.After school,I go to play basketball with Tom.I go to
3、play basketball with Tom when I finish my homework.2.Every morning,I go to school by bus.I go to school by bus when it rains.3.We will go to the zoo if it doesnt rain tomorrow.4.I will visit my grandparents next week if they come back.当从句表示事情发生的时间、地点、条件等时，从句就叫做状语从句，剩下的那部分就是主句啦！从句寻找状语从句主句主句主句主句从句从句从句
4、 状语从句的概述甭管是啥状语从句，都长一个德性：但不同的状语从句，有不同的御用连词。三大从句消灭俩，还剩一个靠花样繁多折磨人的：状语从句 第二部分 时间和条件状语从句的 引导词02它总共有9种花样，咱们今天中主要学习其中2种、-时间状语从句和条件状语从句时间状语从句时间状语从句引导词：when,while,as,before,after,since as soon as,till,until 时间状语从句 这两兄弟，都有“当时”的意思，表示两件事情几乎同时发生。但用法上有一丢丢差别时间状语从句when/whileNo.1时间状语从句当连词后面的事能够持续一段时间时，when,while,都可以
5、。His phone rang when/whilehe was sleeping.当他还在睡觉，铃声响了。时间状语从句当连词后面的事，是一个短暂的动作时，则只能用when。His phone rang when he opened his eyes.当他睁开眼时，铃声响了。时间状语从句He was sleeping when the phone rang.他正睡着觉，这时手机铃声响了。拓展：时间状语从句His phone rang when/whilehe was sleeping.当他还在睡觉，铃声响了。拓展：时间状语从句He snored as he slept.他边睡觉边打呼噜。As
6、the sun rose,the fog disapperaed.随着太阳升起，大雾消去。asNo.2习题演练 1 Peter likes reading a newspaper _ he is having breakfast.A.until B.while C.because D.though2.While she_TV in the sitting room,the bell .A.watches,rings B.is watching,rangC.was watching,rang D.watched,was ringing3._ I got back,I found my mothe
7、r cooking for me.A.When B.Before C.Since D.Although 4._ you meet a word you dont know,use the dictionary.5.The students took notes,_they listened.习题演练答案 1 Peter likes reading a newspaper _ he is having breakfast.A.until B.while C.because D.though2.While she_TV in the sitting room,the bell .A.watches
8、,rings B.is watching,rangC.was watching,rang D.watched,was ringing3._ I got back,I found my mother cooking for me.A.When B.Before C.Since D.Although 4.When you meet a word you dont know,use the dictionary.5.The students took notes,as they listened.时间状语从句We clean the classroom before we leave school
9、every day.After you use plastic bags,you mustnt throw them.before/afterNo.3这两个要弄清先后顺序哦！before/after习题演练1.You should go over your test paper _ you hand it in.A.before B.though C.because D.after 2.Mr.Brown knew nothing about the good news _his wife told it to him.A.before B.after C.since D.if3.Scienti
10、sts say it may be a few years _it is possible to test the new medicine on patients.A.because B.after C.before D.since习题演练答案1.You should go over your test paper _ you hand it in.A.before B.though C.because D.after 2.Mr.Brown knew nothing about the good news _his wife told it to him.A.before B.after C
11、.since D.if3.Scientists say it may be a few years _it is possible to test the new medicine on patients.A.because B.after C.before D.since时间状语从句eg:Rick has learned a lot about Chinese culture _ he came to China.A.before B.when C.until D.since since自从No.4自从+什么时间呢？主句用的什么时态？I have been in China since 19
12、90.Jim has worked for ten hours since the early morning.I have lived here since I was young.时间状语从句till、until表示“直到”的意思，他告诉咱们He slept until/till the bell rang.他一直睡到铃声响起。时间状语从句变成nottill/until告诉咱们He didnt sleep until/till the bell rang.直到铃声响起，他才睡觉。习题演练 1.-Hurry up.The bus is coming.-Oh,no.We mustnt cros
13、s the street_the traffic lights are green.A.after B.while C.when D.until2.Julie didnt leave her office_the police arrived.A.however B.while C.until D.as3.他直到做完作业才去睡觉.He_ _ to bed _ he finished his homework.4.我会待在这里，直到你回来.I_ _here until you _ _.习题演练答案 1.-Hurry up.The bus is coming.-Oh,no.We mustnt cr
14、oss the street_the traffic lights are green.A.after B.while C.when D.until2.Julie didnt leave her office_the police arrived.A.however B.while C.until D.as3.他直到做完作业才去睡觉.He didnt go to bed until he finished his homework.4.我会待在这里，直到你回来.I will stay here until you come back.时间状语从句He opened his eyes as so
15、on as the phone rang.铃声一响，他就睁开了眼。从句一发生，从句就跟着发生as soon asNo.6一就时间状语从句I will tell him about it as soon as he comes back.铃声一响，他就睁开了眼。主从句时态通常是主将从现；类似还有the minute,the moment等。时间状语从句这么多时间连词，想不懵逼，就得让语法变语感，可不就得这么办。来，交作业了！习题演练1.Many students didnt realize the importance of study_they left school.A.when B.unt
16、il C.as D.after2.Usually,we dont know how important something is _ we lose it.A.or B.until C.as soon as3.He was about to go to bed _ the doorbell rang.A.while B.as C.before D.when4._ John was watching TV,his wife was cooking.A.As B.As soon as C.While D.Till习题演练5.The children ran away from the orchar
17、d(果园)_ they saw the guard.A.as soon as B.after C.before D.as6.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;after7._ the day went on,the weather got worse.A.With B.Since C.While D.As8.Ill go to visit my aunt in Englan
18、d _ the summer holiday starts.A.while B.since C.until D.as soon as 习题演练答案1.Many students didnt realize the importance of study_they left school.A.when B.until C.as D.after2.Usually,we dont know how important something is _ we lose it.A.or B.until C.as soon as3.He was about to go to bed _ the doorbel
19、l rang.A.while B.as C.before D.when4._ John was watching TV,his wife was cooking.A.As B.As soon as C.While D.Till习题演练答案5.The children ran away from the orchard(果园)_ they saw the guard.A.as soon as B.after C.before D.as6.The police asked the children _ cross the street _ the traffic lights turned gre
20、en.A.not;before B.dont;when C.not to;until D.not;after7._ the day went on,the weather got worse.A.With B.Since C.While D.As8.Ill go to visit my aunt in England _ the summer holiday starts.A.while B.since C.until D.as soon as 条件状语从句条件状语从句 引导词：if,unless,as long as 条件状语从句条件状语从句条件状语从句Ill forgive you if
21、you kiss me.如果你亲亲我，我就原谅你。Ill not forgive you unless you buy me ten bags.除非你给我买十个包，我才能原谅你。unless=if notIll not forgive you if you dont buy me ten bags.条件状语从句I dont care what you did as long as you love me.只要你爱我，我不在乎你做过什么。习题演练 1.We cant be successful _ we keep working hard.I agree with you.A.if B.unle
22、ss C.because D.when 2.We will make our dream come true _ we keep working hard.I agree with you.A.as long as B.unless C.though D.when 3.We will have no water to drink _we dont protect the earth.A.until B.before C.though D.if 习题演练 4.-Could we play football in your playground,Sir?-No,_you have the prin
23、cipals note.A.if B.unless C.because D.since5.In summer,food goes bad easily _ it is put in the refrigerator.A.until B.if C.unless D.because 6.-I hear Jack Chan will come to Laiwu next week.-Really?_ he comes,my younger sister will be very happy,AIf BUntil CUnless DBefore 习题演练答案 1.We cant be successf
24、ul _ we keep working hard.I agree with you.A.if B.unless C.because D.when 2.We will make our dream come true _ we keep working hard.I agree with you.A.as long as B.unless C.though D.when 3.We will have no water to drink _we dont protect the earth.A.until B.before C.though D.if 习题演练答案 4.-Could we pla
25、y football in your playground,Sir?-No,_you have the principals note.A.if B.unless C.because D.since5.In summer,food goes bad easily _ it is put in the refrigerator.A.until B.if C.unless D.because 6.-I hear Jack Chan will come to Laiwu next week.-Really?_ he comes,my younger sister will be very happy
26、,AIf BUntil CUnless DBefore 第三部分 状语从句的时态 03主将从现 条件状语从句的时态If he doesnt study hard,he will fail in the exam.You can use my dictionary,as soon as you need.Dont leave here until I com back.从句在哪里？从句在表达的是什么时候的事情？从句用的什么时态？条件状语从句的时态(1)主将从现。例：If he doesnt study hard,he will fail in the exam.(2)主情从现。例：You can
27、 use my dictionary,as soon as you need.(3)主祈从现。例：Dont leave here until I com back.从句在哪里？-引导词后边从句在表达的是什么时候的事情？-将来从句用的什么时态？-一般现在时 常用引导词：时间和条件状语从句都可以用一般现在时表将来，但是这六个引导词最为常用：when、as soon as、until、if、unless、as long as特别注意：if 的双重身份-如果/是否当如果讲才能主将从现哦！习题演练 1.I dont know if it_tomorrow.If it_,we wont go on a p
28、icnic.A.rains;rains B.will rain;rains C.will rain;will rain2.-Do you know if he _ to play basket ball with us?-I think he will come if he _ free tomorrow.A.comes;is B.comes;will be C.will come;is D.will come;will be3.We will stay at home if my aunt _ to visit us tomorrow.A.comes B.come C.will come D
29、.is coming习题演练 4.Write to me as soon as you _ to Beijing.A.will get B.get C.getting D.got5.I _ her the answer if she _me.A.can tell,will ask B.will tell,will ask C.would tell,ask D.will tell,asks6.-What will Bill do if he _in the test?-He will try again.A.fail B.fails C.will fail D.is failing 习题演练 7
30、.The students will plant trees if it _ tomorrow.A.didnt rain B.hasnt rained C.wont rain D.doesnt rain8.-Dont forget to ask him to write to me.-I wont.As soon as he _,Ill ask him to write to you.A.will come B.came C.comes D.is coming 9.Ill wake you up when he _back.A.will B.is going to come C.comes D
31、.come习题演练答案 1.I dont know if it_tomorrow.If it_,we wont go on a picnic.A.rains;rains B.will rain;rains C.will rain;will rain2.-Do you know if he _ to play basket ball with us?-I think he will come if he _ free tomorrow.A.comes;is B.comes;will be C.will come;is D.will come;will be3.We will stay at ho
32、me if my aunt _ to visit us tomorrow.A.comes B.come C.will come D.is coming习题演练答案 4.Write to me as soon as you _ to Beijing.A.will get B.get C.getting D.got5.I _ her the answer if she _me.A.can tell,will ask B.will tell,will ask C.would tell,ask D.will tell,asks6.-What will Bill do if he _in the tes
33、t?-He will try again.A.fail B.fails C.will fail D.is failing 习题演练答案 7.The students will plant trees if it _ tomorrow.A.didnt rain B.hasnt rained C.wont rain D.doesnt rain8.-Dont forget to ask him to write to me.-I wont.As soon as he _,Ill ask him to write to you.A.will come B.came C.comes D.is comin
34、g 9.Ill wake you up when he _back.A.will B.is going to come C.comes D.come 第四部分 总结及习题演练 04状语从句时间状语从句：条件状语从句：总结主将从现：1.She will sing a song _ she is asked.A.if B.unless C.forD.since2.Youll miss the train _ you hurry up.A.if B.unless C.beforeD.as soon as 3.He _ back until the work _ done.A.isnt;will be
35、 B.isnt;is C.wont be;will be D.wont be;is4.A tourist will easily lose his way in Beijing _ he has a map or a guide.A.if B.because C.unless D.when 5.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;after6.Ill go swimming
36、with you if I _ free tomorrow.A.will be B.shall be C.am D.was7._ the day went on,the weather got worse.A.With B.Since C.While D.As8.She sang _ she went along A until B as C while D when 9.If you want to learn English well,you must use it as _ as possible.A.often B.long C.many D.soon10.If it _ tomorr
37、ow,Ill go by car.A.rain B.will rain C.rains D.would rain11.-Can I go to Beijing for my holiday,Dad?-You can when you _ a bit older.A.will get B.get C.are getting D.got12.Tomorrow we will go to the city park_ it is sunny.A as soon as B when C if D as 习题演练 1.I went to bed _ the TV program was over.2.K
38、itty will go to a movie with me _ she has free time.3.Remember to close the windows _ you go out.4.Youd better finish your homework _ you go to bed.5.Mike didnt know it _ I told him.1.如果他到的晚了会发生什么事情？What will _ if he _ _ late?2.如果努力学习，你就会取得好成绩。If you_hard,you _ _ a good score.3.他如果看电视太久了，他的父母会不高兴。If
39、 he_ _ too much,his parents _ _unhappy.4.如果我们为他组织生日聚会，大家都会来的。Everyone _ _ if we _a birthday party for him.5.如果明天不下雨，我会和你一起去公园的。If _doesnt_tomorrow,I _ go to the park _you.6.如果她睡过头了，就会旅游迟到的。答案：A B D C C C D B D A B C 1.after 2.if 3.when 4.before 5.until 1.happen is late2.study will get3.watch will be4.will come have 5.doesnt rain will with
