初中时间状语从句语法及练习(全)
2021年初中英语语法：时间状语从句解析和练习题(含答案)
2021年初中英语语法：时间状语从句解析和练习题(含答案)在句子中起时间状语作用的句子称为时间状语从句。
时间状语从句可以放在句首、句中和句尾。
引导时间状语从句的词有when、while、as、before、after、since、until/till、as soon as、once、each time、next time、the moment、immediately、instantly等。
（一）when引导的时间状语从句1）when意为“当......时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生例句：Faith is the bird that feels the light when the dawn is still dark. 信念是黎明前的黑夜里能感受到光明的鸟儿。
例句：When I was wandering in the street, I met her. 我在街上徘徊的时候遇到了她。
2）when引导的时间状语从句中的动词可以用延续性的=动词，也可以用终止性动词例句：He was listening to the music when I went in. 当我进去的时候，他正在听音乐。
例句：I will visit my parents when I have time. 我有空时会去看望我的父母。
（二）while引导的时间状语从句While引导的时间状语从句，常译为“与......同时，在......期间”，while引导的从句常用延续性动词或表示状态的动词。
例句：They rushed in while we were discussing problems. 当我们正在讨论问题时，他们冲了进来。
例句：Make hay while the sun is shining. （谚）趁热打铁。
（三）as引导的时间状语从句As引导的时间状语从句，可以表达“正当，一边一边，随着”等意思。
初中英语状语从句讲解及练习.doc
初中英语之 --- 状语从句1时间状语从句：在一个句子中作时间状语的句子。
引导词:when（当…时候）while（当…时候）as（当…时候）after（在…以后）before（在…以前｝ as soon as（—…就｝ since（自从…到现在）till /until（直到…才｝by the time（到…为止）构成：引导同+陈述语序句子2原因状语从句：在一个句子中作原因语的句子，译作“因为”。
连接词:由连词because, s ince, as引导,也可由for引导。
举例：Ididn’ t go to school y esterday bee ause I was i II.3条件状语从句连接词:if如果,u nless （=if n ot＞除非。
（主将从现原则）举例：If it doesn ’ t rai n tomorrow,we will go h iking.4目的、结果状语从句目的状语从句是指在一个句子中充当目的状语的句子，译作“以此來.......”。
结果状语从句是指在一个句子中充当结果状语的句子，译作“所以......或者如此... 以致于”。
引导词：so that, s o…that, in order thatHe came early so that he c ould get a g ood seat.The boy is so I ittle that h e can't go t o school alo ne.5让步状语从句让步状语从句是指在句子中作让步的状语的句子连接词:though,although, e ven though,even if 译作“尽管 ...... ”举例：Altho ugh he is ri ch, he is no t happy.状语从句其它引导词1.时间状语从句常用引导词:when, as, while, as soon as, while，before,after, sine e , till,until 特殊引导同：.. ... 就... ：the minute, the moment, the second，eg: The moment she s aw the littl e dog, she f ell in love with it.每次... :every timel didn’t real ize how spec ial my mot he r was until I became anadult.While John was wat ching TV, hi s wife was c ooking.The c hildren ran away from th e orchard （果园）the moment they saw the guard.Ever y time I listen to your advice, I get into trouble.2.地点状语从句常用引导同：where特殊引导同：whereve r无论哪里，anywhere 任何地方，everywhere 每个地方A new scho ol will be b uilt where i t was a shop ping center.Wherever yo u go, you sh ould work hard.状语从句练习单项选择1.John does n't letever ybodyinthe kitchen __________ h e could makehis sur prisedinner fortheparty.A. which B. when C. so that D. as if 2.I wouldt hankit __________ you call back this a fternoon for the doctor5 smeeting.A.until B. if C. when D. that3.Asfar as Iam concerned （就我而言），education is about learning and the more you learn,—____ A. the betterlife will you get B. the betterlife you will ge tC. you will get the bet ter lifeD.will you get the bet ter life4.Af ter the war, a new school wasbuilt _____________ t here had once be en（曾经有）a theatre.A. that B. where C . which D. whe n5.—Is Mr.Smith in the office?—Yes , __________ he is in charg e of the office, he mustbe there.A.since B. how ever C. whether D. for 6.As your good friendJ will do ____________help you.A. that I can to B. what I canto C. all that I can D. what I can7.Someone called me up in the middle ofthe night, b ut they hung up（挂断电话）____________ I coul d answer the phone.A.as B.since C. until D. before8.We must hurry up __________catchup with the last train.A. that B. so that to C. in order that D. in ord er toLondon 9.No m atter ________ h ard it ma y be, I will carry it out .A. what B. whatev er C.how D. however 1 0. _________you may do, you must do itwell.A. Which B.Whenever C. What ever D.WhenM. ________ you are so weak, you’d better sta y at home.A.Since B. For C. B ecause D. Though 1 5.1saw Mr.Smith last S unday. We had not seen each other ____________ I left .A. as B. before C.since D. till 16.1’11 be back before you ________ .A.will leave B will have left C.leave D. would lea vel7.If the weather ____________ tomor row, we will go picnic i n the centra 1 park.A wil 1 be fine Bis fine Cis going to be fine D h ave been fine18. ________________________ They wen t on working it was late at night.A. eve n if B.as if C. however D. as tho ughl9.l hurr ied _____________ I wouldn't b e late for c lass.A. sine e B. sotha t C.as if D . unless20.T he volleybal I match will be put off if it __________ .A. will r ain B. rain s C. r ained D. is raining【实例解析】1.（2004年北京市海淀区中考试题）You will sta y healthy ________ you do more exerci se, such as running and walking.A.ifB. howC. beforeD. where2.（2004年江丙省中考试题）…Shall we go on wor king?Ye s, _________ I prefer to have a rest.A. whenB. ifC. be causeD. th ough3.（2004年徐州市中考试题）N one of us kn ew what had happened ___________ they told us abo ut it.A. w henB. unti IC. afterD. though4.（2004年泉州市中考试题）••-1 ho pe you’ll en joy your tri p, dear!—Thank you,mum. Til gi ve you a cal I ___________ I get there.A. untilB. as soon a sC. sinceD. till【中考演练】一.单项填空1. ______ he z s old, he c an still car ry this heav y bag.A. T houghB. Si neeC. ForD. So2.•■-Do you know if he ______ to play ba sket ball wi th us?---1 think he wi II come if h e _______ fre e tomorrow.A. comes; i sB. comes;will beC.will come;isD. will come; will b e3.In the z oo if a chil d _____ into the water a nd can't swi m, the dolph ins may come up _________ him.A. will fall; to he IpB. fall s; to helpC. will fall; help D . falls; hel ping4.1don z t remember _________ he worked in th at city when he was youn g.A. whatB. which C . where D.who5.We wil I stay at ho me if my aunt __________ to visit us t omorrow.esB. c omeC. will comeD. is coming6.Th e police ask ed the child ren _______ cross the st reet _________ the traffi c lights tur ned green.A. not; befo reB. don't; whenC. n ot to; untilD. not; af ter7.1was late for cla ss yesterday ________ t he re was somet hing wrong w ith my bike.A. when B . that C. u ntil D. bee ause8.I’ll go swimming with you if I _________ f ree tomorrow .A. will b eB. shall beC. am D . was9.In t he exam, the ________ yo u are, _______ the ________ mistakes y ou will make .A. carefu I; littleB. more ca reful; fewes tC. more c areful; fewe rD. more c a ref u I; less10.You shou Id finish yo ur lessons _______ you g o out to pal y.A. beforeB. afterC. whenD.while11.1hurried _____ I wouldn't be late for class.A.sinceB. s o thatC. a s ifD. uni ess12.When you read the book, you'd better make a mark ________ you have any questio ns.A. whi chB. thatC. where D . though13.The teacher raised his v oice ________ a ll the stu dents could hear him.A. forB. s o thatC. b ecauseD. i n order14.H e took off h is coat ________ h e felt hot.A. be causeB. asC. ifD.since15.It is ______ th at we'd like to go out f or a walk.A. a lovely dayB. t oo lovely a dayC. so lovely a dayD. such Io vely a day16 . Mary had _______ m uch w ork to do th at she staye d at her off ice all day.A. suchB.soC. tooD. very17.______ I fel t very tired , I tried to finish the work.A. AlthoughB.BecauseC.AsD. As if18.______ t he day went on, the weat her got wors e.A. WithB. SinceC. WhileD.As19.______ well you c an drive, yo u must drive carefully.A. So long asB.ln order tha tC. No ma tter how D . The momentBeijing20. Write to me as soon as you _________ to.A . will get B. get C. g etting D. g ot二.根据中文意思完成下列英语句子1.不管他跟我开什麽玩笑，我都不生气。
初中时间状语从句语法及练习
英语时间状语从句讲解与练习(一)wｈen, while 与ａｓ引导时间状语从句得用法一、ｗｈen 得用法ﻫ如果只从现象来瞧,wheｎ从句用得最多得就就是一般过去时,而主句得时态没有限制,根据具体情况而定。
1、Wheｎhe was a child heｗａs always ｔｒｙing ouｔnｅw ideas、她小时候就常常试验一些新得设想。
2、Ｗhen shｅcame ｉnｔo mｙroom,I waｓｊusｔreadingａbooｋ、她走进我房间时,我正在瞧书。
ﻫ根据以上得例句,我们可以总结出一点:wｈen从句得A事件,相当于另一个事件B发生得时间点。
也就就就是说,when 从句得重点不在动作本身发生得状态，而只就就是把它作为一个时间点,所以wheｎ多数情况下用得就就是一般过去时,则不用正在进行时。
因为如果用正在进行时,它表示得就就就是一段时间而不就就是一个时间点了。
根据这一点,有得文章补充说:when 从句得动词大多就就是瞬时动词。
这种说法也可以参照。
实际上,when从句也可以有其它得时态,但几乎也不用进行时,因为它也只就就是作为一个时间参照点。
例如:1、When I ｇot to the airｐoｒｔ, ｔｈe guestｓhａｄｌｅft、当我赶到飞机场时,客人们已经离开了。
2、When ｈe had ｆinｉshed hｉs hoｍｅwork, he toｏｋａshort rest、当她完成作业后，她休息了一会儿。
3、Whｙdｏyou ｗaｎｔ a nｅw job wｈｅｎyoｕｈavｅgｏt sｕｃｈａgood onｅaｌrｅａdy？您已经找到如此好得工作,为何还想再找新得？ﻫ二、whｉle 得用法相比于wｈen来说，whｉle 从句得侧重点就不一样了。
wｈile从句得侧重点在于描述动作正在发生得状态，它得意思就就是:当wｈiｌe 事件正在发生得时候,另一件事如何如何。
所以,whiｌe 从句一般用得就就是正在进行时。
时间状语从句讲解和练习(答案)
时间状语从句用句子表达一件事情或一个行为发生的时间，这个句子就叫时间状语从句。
时间状语从句根据其所表示的时间不同，所使用的连词也不同。
下面我们一起来看一下几个常见的时间状语从句：1. When引导的从句：表示主句的动作和从句的动作同时发生，或从句的动作发生在主句动作之前。
例如：I WaS goi ng OUt Whe n a ViSitor came.( 动词动作同时发生。
)我正要出门，有客人来访。
I shall tell her the good news Whe n She comes. 她来时，我将告诉她这个好消息。
小试牛刀：I found mother cooki ng for me. I got home.(when) _____________________________________ He WaS liste ning to the radio Whe n I ___________________ home. (get)2. while引导的从句：表示当……过程中”，强调某一段时间内主句和从句中谓语动词所表示的动作在同一时期发生。
由于while从句表示一个持续的行为，所以从句中要用持续性动词，并且持续性动词常用进行时态。
例如：KeeP an eye On my little SiSter while I am away. 我不在时，请照看一下我的小妹妹。
While We Were WatChing TV, Jim Came in. 我们看电视的时候，Jim 进来了。
小试牛刀：It Started to rai n. We Were playi ng football.(while) _____________________________________ LUCy WaS clea ning the room ________ Lily WaS liste ning to music.3. as引导的时间状语从句：表示当.... 的时候；一边... 一边.... ；随着.... ”，其从句的主语与主句的主语往往是同一人或物。
初中时间状语从句语法及练习教案资
英语时间状语从句讲解与练习（一）when, while 和as 引导时间状语从句的用法一、when 的用法如果只从现象来看，when 从句用的最多的是大凡过去时，而主句的时态没有限制,根据具体情况而定。
1. When he was a child he was always trying out new ideas.他小时候就常常试验一些新的设想。
2. When she came into my room, I was just reading a book.她走进我房间时，我正在看书。
根据以上的例句，我们可以总结出一点：when 从句的A事件，相当于另一个事件B发生的时间点。
也就是说，when 从句的重点不在动作本身发生的状态，而只是把它作为一个时间点，所以when 多数情况下用的是大凡过去时，则不用正在进行时。
因为如果用正在进行时，它表示的就是一段时间而不是一个时间点了。
根据这一点，有的文章补充说：when 从句的动词大多是瞬时动词。
这种说法也可以参照。
实际上，when 从句也可以有其它的时态，但几乎也不用进行时，因为它也只是作为一个时间参照点。
例如：1. When I got to the airport, the guests had left.当我赶到飞机场时，客人们已经离开了。
2. When he had finished his homework, he took a short rest.当他完成作业后，他休息了一会儿。
3. Why do you want a new job when you have got such a good one already?你已经找到如此好的工作，为何还想再找新的？二、while 的用法相比于when 来说，while 从句的侧重点就不一样了。
while 从句的侧重点在于描述动作正在发生的状态，它的意思是：当while 事件正在发生的时候，另一件事如何如何。
时间状语从句讲解和练习(答案)
时间状语从句用句子表达一件事情或一个行为发生的时间，这个句子就叫时间状语从句。
时间状语从句根据其所表示的时间不同，所使用的连词也不同。
下面我们一起来看一下几个常见的时间状语从句：1．when引导的从句：表示主句的动作和从句的动作同时发生，或从句的动作发生在主句动作之前。
例如：I was going out when a visitor came. (动词动作同时发生。
)我正要出门，有客人来访。
I shall tell her the good news when she comes.她来时，我将告诉她这个好消息。
小试牛刀：I found mother cooking for me. I got home.(when)_______________________________________ He was listening to the radio when I home. (get)2．while 引导的从句：表示“当……过程中”，强调某一段时间内主句和从句中谓语动词所表示的动作在同一时期发生。
由于while从句表示一个持续的行为，所以从句中要用持续性动词，并且持续性动词常用进行时态。
例如：Keep an eye on my little sister while I am away.我不在时，请照看一下我的小妹妹。
While we were watching TV, Jim came in. 我们看电视的时候，Jim进来了。
小试牛刀：It started to rain. We were playing football.(while)_______________________________________ Lucy was cleaning the room Lily was listening to music.3．as引导的时间状语从句：表示“当……的时候；一边……一边……；随着……”，其从句的主语与主句的主语往往是同一人或物。
时间状语从句(含练习及答案)
以when 引导的时间状语从句- When I got home, my son had finished his homework. (主句动作发生在从句之前)- When(当...时候, 主语+did) we arrived, it was raining.- When(正当...时候，主语+be+doing) I was playing the computer games, my mum came in. - He is always nervous when he speaks to strangers.- I usually walk to school when it rains.以while 引导的时间状语从句- While I was reading, my brother was playing with his toy cars. (主从句子动作同时发生)- While/When/As he was studying in the library, I saw him. (表示一段时间时，while/when/as 可替换)while引导的从句的谓语动词必须是持续性动作:I saw him while(x) I was getting off the bus.(x)I saw him when/as I was getting off the bus.以as 引导的时间状语从句- He will grow wiser as he grows older. 随着年龄的增长，他会聪明起来。
（随着，表示时间的推移，这时，不用when/while）- He entered the room as/when/while the meeting was going on. 正当开会的时候，他走进房间。
以before引导的时间状语从句- He had washed his hands before he had dinner. (主句动作先于从句动作)- Please clean the house before you move in.以after 引导的时间状语从句- She went on holiday after she had taken the examination. (从句动作先于主句)- You can watch TV after you finish your homework.以since 引导的时间状语从句- She has been in the house since she came to the city. (主句完成时态，从句过去时)- I have taught them English since last year.以as soon as引导的时间状语从句- I will write to you as soon as I get to America. 我一到美国就会给你写信。
初中英语时间状语从句讲解及练习.doc
语法29 时间状语从句一、什么是状语从句状语就是在一句话中表示该句子的时间、地点、方式、原因、条件等成分。
状语从句就是用一个从句表示状语。
状语从句根据它表达的意思不同，可分为时间、地点、原因、目的、结果、条件、方式、比较、让步等九类。
与状语一样，状语从句的位置比较灵活。
既可置于主句之前（通常用逗号与主句隔开），也课置于主句之后（不需要用逗号与主句隔开），有时甚至可以置于主句之中。
二、时间状语从句1.主句和从句同时发生，这类从句由从属连词when, while, as引导。
He was hungry when he came home.I was crying while everyone was laughing.As I walked out, he walked in.as, when, while, 的区别①as强调从句的动作与主句动作同时发生及持续，具有at the same time的意思他继续往下谈的时候，越来越兴奋。
as还可以表示一边……一边……，强调从句和主句中两个动作交替进行或同步进行。
他们边走边聊。
as还有“随着”的含义随着春天的到来，天气暖和起来。
②when强调动作点的特定时间，具有at the time that的意思当老师走进来的时候，我们都站起来了。
③while表示较长的期间，具有during the time that的意思当我在这的时候，我很安全。
2.主句发生在从句之前，这类从句由从属连词before, until引导,before意为“在---之前”until 在肯定句中意为“直到---为止”，在否定句中意为“直到---才”。
从句既可置于主句前，也可置于主句之后。
回家之前我必须干完所有的活。
我们将一直等到他回来。
他直到晚上11点才回家。
3.主句发生在从句之后，这类从句由从属连词after引导，意为“在---之后”。
从句既可置于主句前，也可置于主句之后。
放学后我们踢足球吧。
中考英语语法专题 时间状语从句讲解+练习
时间状语从句常用引导词：when, while, as, as soon as, before, after, till/until, since1、when, while, as（1）三者均可表示“当……时候”，如果主句表示的是短暂的动作，而从句表示的是一段时间，三者可通用。
如：I met Kang Li while/when/as I was walking along the street．当我沿街散步时碰见了康丽。
Don’t make any noise while/when/as I am recording. 我录音时（你们）别发出声音。
（2）while1）while只能与持续性动词连用，且常用进行时态。
表示主句的行为在从句行为进行的过程中发生。
如：While they were crossing the Atlantic, many people died. 他们中的很多人在横渡大西洋时丧生了。
2）表示主句和从句的动作同时发生。
如：While the wife was cooking, the husband was watching TV. 妻子在做饭的时候，丈夫在看电视。
3）表示“然而”，主句和从句是两个对应的动作。
如：Lucy likes dancing while Lily likes doing sports. 露西喜欢跳舞而莉莉喜欢运动。
（3）when1）when既可以和持续性动作连用，也可以和瞬间性动作连用，主句与从句描述的动作既可以同时发生，也可以先后发生。
如：When the weather is fine, many people go out for a walk. 天气好时，很多人都出去散步。
When I got home, I found my baby girl singing in the sitting room. 我到家时，发现我的小女儿正在客厅里唱歌。
(完整版)初中时间状语从句语法及练习(全)
状语从句什么是状：句子中修、形容等的句子成分叫状，用来从地点、、原因、目的、果、条件、步、比、方式和陪同情况等方面修明。
e.g. He speaks English very well（.副作状）e.g. He is playing under the tree（.介短作状）e.g. I come specially to see you（.不定式作状）e.g. If I am not busy tomorrow,I will play football with you.（从句作状）e.g. Having had a quarrel with his wife,he left home in a bad temper（.分作状）状从句：状从句就是在复合句里起状作用的从句，能够表示、地点、原因、目的、果、步、比、方式、条件等。
引状从句的叫做隶属。
状从句的位置能够在句首，也能够在句末。
放在句首，从句后边常用逗号与主句分开；放在句末，从句前面常常不用逗号。
If it ’ s fine tomorrow, I wilgo with you.I will go with you if it’ s fine tomorrow.状从句分：1、状从句2、地点状从句3、原因状从句4、目的状从句5、果状从句6、条件状从句7、步状从句8、比状从句9、方式状从句状从句隶属：when, while, as, before, after, till/until, since, whenever, as soon as（一⋯⋯就）⋯⋯：主将从，主情从，主祈从一、 When/while/as （当⋯候）区：主句作与从句作生的（同/以前 /此后）；从句（延性 /瞬性）1）When:when 引状从句表示“当⋯⋯ 的候”，when既能够指段也可指点，从句中既可用延性又可用瞬性，且作既可和主句的作同生又可在主句的作以前或此后生。
且when 引的状从句中一般用一般在表将来（主将从）。
初二时间状语从句练习题
初二时间状语从句练习题时间状语从句是英语语法中的重要知识点，对于初二学生来说，掌握时间状语从句的用法和练习题是非常关键的。
下面是一些针对初二学生的时间状语从句练习题，希望能够帮助你加深对时间状语从句的理解和运用。
练习题一：选择正确的时间状语从句1. I will call you ______ I get home.A. whileB. whenC. untilD. after2. _______ the teacher comes, please wait for him at the gate.A. WhileB. UnlessC. WhenD. Until3. Lisa failed the exam ______ she didn't study.A. whenB. becauseC. afterD. until4. We can go out to play ______ it stops raining.A. ifB. unlessC. althoughD. when5. Please let me know ______ the parcel arrives.A. untilB. afterC. unlessD. when练习题二：根据意思补全时间状语从句1. I will go to bed early tonight ______ I have an important test tomorrow morning.2. ______ she finishes her homework, she can go out and play.3. We won't leave ______ the rain stops.4. You can play computer games ______ you finish your homework.5. He was late for school again ______ he missed the bus.练习题三：改写句子，使用时间状语从句1. I will call you after I finish my dinner.改写为：______ I finish my dinner, I will call you.2. She will go to the movies if she has time.改写为：______ she has time, she will go to the movies.3. He always watches TV until his mother comes back.改写为：He always watches TV ______ his mother comes back.4. We can play football after it stops raining.改写为：______ it stops raining, we can play football.5. They won't start the meeting until the boss arrives.改写为：______ the boss arrives, they won't start the meeting.练习题四：根据汉语提示翻译句子，使用时间状语从句1. 当他到达车站时，火车已经开走了。
英语时间状语从句讲解及练习(完整版)
英语时间状语从句解说与练习英语时间状语从句解说与练习when, while和as指引时间状语从句的用法这三个词的意思很简单，都有“当时候”的意思。
但学生常常会问三个词的差异在哪儿，特别是在做选择题的时候。
别说是学生，就我个人而言，做这样的选择题要保证百分之百的正确也是不行能的。
现依据大批的实例和个人的思虑，做一点小结，供大家参照。
一、 when的用法假如只从现象来看，when从句用的最多的是一般过去时，而主句的时态没有限制,依据详细状况而定。
1.When he was a child he was always trying out newideas.他小时候就常常试验一些新的假想。
2.When she came into my room, I was just readinga book. 她走进我房间时，我正在看书。
3. Were you writing when the teacher came in?老师进来的时候，你在写信吗？4. Sorry, I was out when you called me.对不起，你打电话来的时候我出去了。
5.He was on the point of leaving whensomeone knocked at the door.他正要走，这时有人叩门。
6. I thought of it just when you opened your mouth.就在你要说话的时候，我也想到了。
7. I had hardly[scarcely] closed my eyes whensomeone knocked at the door.我刚一闭上眼，就有人在叩门了。
依据以上的例句，我们能够总结出一点： when 从句的 A 事件，相当于另一个事件 B 发生的时间点。
也就是说， when 从句的要点不在动作自己发生的状态，而不过把它作为一个时间点，所以 when 多半状况下用的是一般过去时，则不用正在进行时。
状语从句讲解及练习
状语从句状语从句在句中作状语，修饰主句中的动词、形容词或副词等。
状语从句放在主句之前时，常用逗号分开；放在主句之后，一般不用逗号。
状语从句按其意义和作用可分为时间、条件、原因、让步、目的、结果、方式、比较、地点9种。
1．时间状语从句1) 时间状语从句常用连词有when, as, while, before, after, since, till, until, as soon as, hardly … when …, no sooner … than …., the moment等。
2) 时间状语从句一般不用将来时。
因此，主句若为将来时，时间状语从句要用一般现在时。
I’ll go on with the work when I come back tomorrow.3) 连词when, while, as都表示“当……的时候”，但有区别。
as 多用于口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。
As he was eating his breakfast, he heard the door bell ring. (强调同一时间)As going out, it began to rain. (强调两个动作紧接着先后发生)As spring warms the good earth, all flowers being to bloom. (as有“随着”的含义)when 强调“特定时间”。
When spring comes, he feels like a trip.When he was eating his breakfast, he heard the door bell ring.while 表示的时间是一段，而不是一点。
while 有时还有对比的含义，意为“然而”。
While he was eating his breakfast, he heard the door bell ring. (强调吃饭的过程)While I was reading, he was playing. (有对比的含义)4) till / until表示“一直到……”时，主句和从句都用肯定式；表示“直到……才……”时，主句用否定式，从句用肯定式。
时间状语从句+习题练习(含答案)
专题: 时间状语从句在下列空格中填入适当连词。
1._________he comes tomorrow,I will ask where he has been.2._________he was speaking,everybody listened carefully.3.I saw her just now_________she was getting off the train.4.Have a good look at that man________you pass him.5.It was already eight o'clock_________we got there.6.I was about to go out_________a visitor came.7.We'll go to the country at the beginning of June,_________the summer harvest will start.8.He learned to speak German_________he was in Berlin.9.Henry is in charge of the office________Mr.Smith is away.10.I listen to the recorder_________I have time.11.He had learned Chinese_________he came to China.12._________the work was done,we sat down to sum up experience.13.I haven't seen him_________he moved to the other side of the town.14.I waited________ he came back.15.I didn’t recognize him________he took off his eyeglasses.16.She likes everything to be in place________she starts to work.17.The thieves ran away_________they caught sight of the police.18.They decided to go back home_________their money ran out.19.__________I get to the airport,I will phone you to pick me up.20.They were about to leave______it began to rain.Keys:1.When2.While/When3.as4.when/as5.when6.when7.when8.while9.whi le10.whenever11.before12.After13.since14.till/until15.until16.before17.as soon as18.before19.As soon as20.when。
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初中时间状语从句语法及练习(全)状语从句是一个在复合句中修饰动词、形容词等的从句。
它可以从地点、时间、原因、目的、结果、条件、让步、比较、方式和伴随状况等方面修饰说明谓语。
状语从句的位置可以在句首，也可以在句末。
如果放在句首，从句后面常用逗号与主句隔开；放在句末时，从句前面往往不用逗号。
状语从句可以分为时间、地点、原因、目的、结果、让步、比较、方式和条件状语从句。
不同类型的状语从句有不同的从属连词和时态。
时间状语从句的从属连词有when、while、as、before、after、till/until、since、whenever、as soon as等。
时间状语从句中一般用一般现在时表将来（主将从现）。
When引导时间状语从句时表示“当……的时候”。
它可以指时间段也可指时间点，从句中既可用延续性动词又可用瞬间性动词，且动作既可和主句的动作同时发生又可在主句的动作之前或之后发生。
例如：“I will call you when I get there.”When XXX with "when"。
if the subject of the clause is the same as the subject of the main clause and the verb in the clause is "be"。
the subject and "be" can be omitted in the clause.For example。
"When (you are) in trouble。
ask her for help."If the subject of the time adverbial clause introduced by "when" is the same as the subject of the main clause。
the subject of the clause can also be omitted and replaced with the form "when + participle".For example。
"When I came into the room (= When coming into the room)。
I found XXX."When" can also be used to XXX when used in this way。
Alternatively。
the verb in the main clause can be a non-continuous verb if it emphasizes the n occurring during the process of the n in the clause。
The verb in the clause should always be a continuous verb。
and the clause is often in the progressive tense.For example。
"I met her while I was at school."While I was sleeping。
the UFO arrived."We were doing our homework while it was raining outside."Study while you study。
play while you play."As" XXX to express "when" (only for instantaneous verbs。
with two ns closely related。
one before and one after)。
"while" (emphasizing two ns happening at the same time。
including one XXX)。
or "along with" (one n changes with the change of another n。
and the clause can only be followed by continuous verbs).For example。
"XXX."As the wind rose the noise increased."C。
was going。
was occurringD。
was going。
occurred1) When I heard the steps。
I had just stepped out of the bathroom and was XXX2) XXX his ears。
XXX。
3) XXX4) As you're there。
can you get me some stamps。
5) I was going along the street looking for a place to park when the accident occurred。
解析。
1) 改写后更符合语法规则，使用when表示先后顺序。
2) 删除了明显有问题的段落，改写后更符合语法规则，使用when表示先后顺序。
3) 改写后更符合语法规则，使用when表示先后顺序。
4) 删除了明显有问题的段落，改写后更符合语法规则，使用as表示随着时间的推移。
5) 改写后更符合语法规则，使用went和occurred表示先后顺序。
他直到音乐会结束才出现。
2）用在句首，表示强调e.g。
Not until the XXX直到音乐会结束他才出现。
3）用在句中，表示部分否定e.g。
He didn’t leave until the concert ended。
but he didn’t stay until the party started。
他直到音乐会结束才离开，但他没有等到派对开始。
巩固练】I won’t leave ____ you come back.A。
XXXNot ____ she finished her homework did she watch TV.A。
XXX1）It is difficult for us to learn a lesson in life until we’XXX.改写：We can only learn a lesson in life after we’XXX.2）A good storyteller must be able to hold his listeners’ XXX the end of the story.改写：XXX。
one must be able to keep his listeners interested until the end of the story.3）I don’t really work here。
I am just helping out until the new secretary arrives.改写：I am XXX.4）Since引导的时间状语从句表示“自从……以来”，需注意以下两点：改写：Since is used to XXX point in the past。
It can be used with the present perfect tense in the main clause or with the past tense if referring to a specific point in the past.5）I have never seen him again since he left here.改写：Since he left here。
I XXX.6）They have been friends ever since they were in school.改写：They have been friends since their school days.7）It is two years since I XXX.改写：I have been a postgraduate student for two years.8）It was three years since we had been there.改写：XXX't been there for three years.I XXX。
It has been three years since I left there。
1) They have been friends since they met in Shanghai。
2) Wonderful。
It's been two years since I enjoyed myself so much。
XXX: "As soon as。
XXX。
directly。
instantly。
the moment。
the minute。
the instant。
XXX。
XXX。
and once"1) "As soon as" can be used to XXX future events using the present simple tense。
It can also be used to XXX or one after the other。
2) "XXX.than。
" and "hardly。
when。
" can only be used to describe past events。
In terms of tense。
the main clause uses the past perfect tense while the subordinate clause uses the simple past tense。
n is used with these phrases。
where the negative word is placed before the subject and the auxiliary verb comes before the subject。
For example: "I had hardly got home when it began to rain" can also be written as "Hardly had I got home when it beganto rain."One) Usage of "when," "while," and "as" to introduce time clauses:1."When" is most commonly used with the simple past tense in the subordinate clause。