(完整版)状语从句(9种全)(2)
初中英语状语从句整理必背-多个例句强化规律
初中英语状语从句整理必背-多个例句强化规律以下是常考的9种状语从句及其常用的连词，每个连词后面列出了三个例句及其翻译，熟练背诵有助于理解长难句和写作提高拿高分或满分，同时综合填空等填空题型时态把握也有很大帮助，语言习得，只有通过多个例子强化练习，感悟才能达到孰能生巧的程度，加油，相信你能够成就最好自己。
时间状语从句常用连词：when, while, as, before, after, since, until(1)when: 当...时候，无论何时例句：When I was young, I liked to play with my friends. (当我年轻的时候，我喜欢和朋友们一起玩。
)When we have finished our work, we can go home. (当我们完成工作后，我们可以回家。
)When she sings, she sounds beautiful. (当她唱歌时，她的声音听起来很美。
)(2)while: 与...同时，当...时候例句：While I was cooking, my sister was watching TV. (当我烹饪的时候，我的妹妹在看电视。
)While we were waiting for the bus, we saw a dog on the street. (当我们等公交车的时候，我们在街上看到了一只狗。
)While she was writing her exam, she suddenly remembered something important. (当她在写考试的时候，她突然想起了重要的事情。
) (3)as: 当...时候，一边...一边...例句：As I was walking to school, I saw a cat chasing a bird. (当我步行去学校的时候，我看到了一只猫在追一只鸟。
状语从句(9种
1．时间状语从句常用引导词：when, as, while, as soon as, before, after, since , till, until特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园), the moment they saw the guard.No sooner had I arrived home ,then it began to rain.Every time I listen to your advice, I get into trouble.2．地点状语从句常用引导词：where特殊引导词：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.地点状语从句§4地点状语从句 (adverbial clause of place) 地点状语从句一般由连接副词where, wherever等引导，已经形成了固定的句型，例如：句型1：Where＋地点从句，（there）＋主句。
【注意】此句型通常译成“哪里……哪里就……”；主句在从句后面时，there可用可不用；如果主句在从句的前面时，一般都不用there。
状语从句(29张PPT)初中英语专项复习课件(2)
时间状语从句的分类
Mary cut her finger when she was making a kite. Once you see her, you’ll never forget her. As she was reading the newspaper, grandma fell asleep. Work while you work. Play while you play.
时间状语从句的分类
2. 表示先后，即主句的谓语动作发生在从句之前或之 后。包括：after（在……之后），before（在……之 前）。
时间状语从句的分类
After we heard the news, we were all excited. We had learned English for three years before he went to London.
时间状语从句的分类
3. 表示持续或瞬间性。包括：since（自从），ever since（自从），until（直到……才/为止)，till （直 到……才/为止)。
时间状语从句的分类
It’s just a week since we arrived here. Ten years has passed since we left our school. He waited for his father until (till) it was twelve o’clock.
易错点3 when/while/as的区别 as:
1. She came up as I was cooking.（同时） 2. The runners started as the gun went off.（几乎同时）
(完整word版)九大状语从句重难点讲解2
时间状语从句一、when的用法小结：1、“当……时”、“在……期间”.例：When the film ended，the people went back.When I lived there，I used to go to the seashore on Sundays。
2、“那时，这时”。
常用于以下句式:was about to do sth. … when…\be （on the point of） doing sth. …when…(刚要…这时突然…)e。
g.I was about to go out when the phone rang.3、还可以表示原因“既然”，相当于since，considering that.如：It was foolish of you to take a taxi when you could easily walk there in 5 minutes.●We were swimming in the lake_______suddenly the storm started。
A whenB whileC untilD before●He was about to tell me the secret ______someone patted him on the shoulderA asB untilC whileD when●-Did Jack come back early last night？—Yes，it was not yet 8:00 _____he arrived home。
A beforeB whenC thatD until二、while 的用法小结:1、while 引导的动作必须是持续性的，强调某一段时间内,主从句动作同时发生，或主从句中的动作或事物在从句中的动作或事情的进展过程中发生。
如：Please don’t talk so loud while others are working。
(完整版)状语从句9种全
状语从句在复合句中作状语的从句叫状语从句。
状语从句有时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。
一、时间状语从句引导时间状语从句的连接词有： when， as， while， after， before， since， ever since, as soon as, once， till, until， whenever, no sooner…than, hardly/scarcely。
.when, the moment/minute/instant/second， every time， each time, any time， the first time, next time, last time， all the time, by the time, directly, immediately， instantly 等。
1。
表示“一···就···”的句型1） as soon as/onceAs soon as he arrives， I'll call you.他一到,我就给你打电话。
（as soon as 侧重时间或动作先后衔接紧，而once侧重条件，表示“一旦。
”）2） on doing sth/on one's + n。
作时间状语On arriving at the station， the thief was arrested.一到达车站，这个小偷就被逮捕了.On his arrival in Paris, he was recognized as a noble and thrown into prison. 他一到达巴黎，就被认出是一个贵族,并被投入监狱.3) no sooner 。
..than ， hardly/scarcely。
when它们表“一…就"。
结构中的否定词放在句首时，主句要倒装。
英语中的九种状语从句
5、条件状语从句的引导词有if, if only（如果…… 就好了，但愿）, unless, in case, as/so long as, provided that, providing that, suppose that, supposing that, on condition that ， when。
(1)___the days went on, the weather got worse.
A. With
B. Since
C. While D. As
(2) ____the satellite launch drawing near，the research workers put their hearts to the test and always stayed up late.
状语从句
状语从句 （Adverbial Clause） 是指句子用作状 语，根据其作用可分为一下九种：
1. 时间状语从句 1) 引导词 （ 1 ） 表 示 “ 当 …… 时 候 ” ： when, while, as,
whenever When I went into the room, he was at work.当我进屋
Even if I have to walk all the way I’ll get there. 即使我 得一路走着去，我也要走到那里。
• as引导的让步状语从句的结构是：名词（形 容词、副词、动词）+ as +主谓。如：
Child as he was, he knew what was the right thing to do. 尽管是个孩子，他知道要做的正确的事情 是什么。
初三英语状语从句知识精讲(二)
初三英语状语从句知识精讲（二）状语从句（二）（一）结果状语从句：常用的引导连词有：so that （结果），so + adj. / adv. + that （如此的……，以致于……），such + n. + that （如此的……，以致于……），that （……结果……）。
eg .I learned English hard , so that I got good marks in every test .我学英语非常努力，因此我在每一次考试中都取得好成绩。
He is so weak t hat he can’t go any further . 他太虚弱了以致于他再也不能往前走了。
He slept so late last night that he couldn’t put his heart into the study this morning .他昨晚睡得太晚了，以致于今天早晨他不能全神贯注地学习He left in such a hurry that he forgot to lock the door .他走得如此匆忙以致于把门都忘了锁了。
It was such a bad night that I hardly found my way home .这是个天气非常恶劣的晚上，我几乎认不得回家的路。
Bring it nearer that I may see it better . 拿近一点儿我好看清楚。
比较以下句型：⎪⎩⎪⎨⎧.him like all we that man a kind so is He .him like all we that man kind a such is He .him like all we that kind so is man The他是一个如此好的人，我们都喜欢他。
⎩⎨⎧.word a say to excited too was I .word a say t can'I that excited so was I 我很兴奋，以致于说不出话来。
完整版)时间状语从句
完整版)时间状语从句概述：时间状语从句是复合句中由时间连接词引导的表示时间的从句。
在使用时，要注意主句和从句的时态要保持一致。
常用连接词举例：1.when连接的时间状语从句当……时候，如：天气好时，很多家庭都出去散步。
2.before/after连接的时间状语从句在……之前/之后，如：妈妈总是在我放学回家前把晚饭准备好。
3.as soon as连接的时间状语从句一……就……，如：我一完成作业就去电影院。
需要注意的是，时间状语从句一般不用一般将来时态。
若主句为一般将来时态或是含有将来的意味时，时间状语从句常用一般现在时态来代替将来。
例如，当我毕业了，我就要去参军。
As soon as it strikes 12 o'clock。
we all start XXX.Upon our arrival。
XXX.4.时间状语从句中使用until表示一个动作一直持续到某一时刻，例如：He waited until all the people left。
我们也可以说I didn't go to bed until Mum came back。
表示直到妈妈回家后我才上床睡觉。
5.当while连接时间状语时，表示主句的行为在从句行为过程之中发生。
从句中要使用持续性动词或状态动词，并且持续性动词通常使用进行时态。
例如：While they were waitingfor the New Year。
they listened to music。
sang songs and had fun.Till and until are used to introduce time clauses in affirmative sentences。
with the main clause verb being a continuous n or state that lasts until the time XXX: XXX。
状语从句 (2)
真题演练
【2013四川】7. He is so busy. He cannot afford enough time with his son____ he wants to. A.even if B.as if C.because D.before
【2012 湖南】28._____ I always felt i would pass the exam, I never thought i would get an A. A.While B.Once C.If D.Until
状语从句
之让步状语从句
翰林院教育文科组毛恒青
Although/ though (不可与but连用)
e.g.He is unhappy,though/ although he has a lot of money. 注意：though还可用作adv.,意为“可是，然而”， 置于句末 He said he would come;he didn`t,ห้องสมุดไป่ตู้though.
even though/ even if（即使）
E.g. Even though/ if it is raining, we`ll go there. Even if i were busy, i would go.
whether· · · · · · or· · · · · · （不 管· · · · · · 还是· · · · · · ） e.g.Whether you believe it or not, it is true.
疑问词+ -ever 与 no matter+疑问词 （不管· · · · · · 无论· · · · · · ） e.g. Whatever (=No matter what)you say,he won`t believe you. Whoever you are(=No matter who you are), you must obey the rules.
语法专项2—— 状语从句(九大状语从句详讲+配套练习)
语法专项2——状语从句【状语从句综述】由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它能够用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。
一、时间状语从句1.表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。
例如：When I ca me into the office, the teachers were having a meeting.当我进入办公室时，老师们正在开会。
He started as soon as he received the news. 他已得到这个消息，就出发了。
Once you see him, you will never forget him.一旦你见了他，你就不会忘记他。
No sooner had I gone to bed than I went to sleep.我一上床就睡着了。
2.when, while, as的区别这三个词都能够用作连接词，表示时间关系，但有所区别。
(1)when表示时间关系时，意思常常是“当(在)……的时候”。
主句和从句中的动作或事情能够同时发生，也能够先后发生。
例如：When we were at school, we went to the library every day.我们在求学的时候，每天都到图书馆去。
(2)while 用作连接词表示时间关系时，意思也是“当(在)……的时候”，主句中的动作或事情在从句中的动作或事情的进展过程中发生。
它有时可与when通用，但它只能指一段时间(a period of time)，而不能指一点时间的(a point of time)。
人教版初三中考英语状语从句(完整版)(2)
一、选择题1．We’re not very close friends________ we’ve known each other for a long time.A．until B．although C．as D．if2．Don't be afraid of asking for help ________ it is needed.A．unless B．until C．although D．when3．At present,it is not easy for some students to get up early ________ they have too much homework to finish.A．unless B．since C．as a result D．although4．________ she is wrong, it’s not a big deal.A．Because B．So C．Although D．But5．— A sandstorm hit the north a few weeks ago. It was the strongest in ten years.—The environment won’t get better ________ we take action to protect it.A．if B．since C．though D．unless6．________ that moment, I never realized how much my father loved me.A．At B．Unless C．Until D．Since7．________ she couldn’t see his face, sh e could tell by his voice that he was young. A．Because B．If C．Though D．Unless8．— Jenny, will you leave for the UK now?— No. It will be two weeks ________ I leave here.A．until B．since C．before D．when9．All the teenagers should keep taking exercise every day ________ they are busy studying so many subjects.A．until B．because C．unless D．though 10．—When will the railway that connects the two cities open?— next year. Only two thirds been built.A．Until; has B．Until; haveC．Not until; has D．Not until; have11．In ancient times, people seldom travelled long distances and most farmers only travelled________ the local market.A．longer than B．more than C．as much as D．as far as12．________ more and more people surf the Internet for news, the traditional newspaper may not disappear in a short time.A．Because B．Since C．Though D．Unless13．The old couple insist on living in a small village among the mountains __________ they can get closer to nature.A．until B．unless C．even though D．so that14．In summer, milk quickly goes bad ________ it is put into a fridge.A．though B．unless C．because D．once15．My parents gave red packets to my cousin every Spring Festival___________ she got a job, because she said she was able to make money.A．after B．when C．until D．since16．—Did you watch the News Network Show yesterday?— Yes, of course. I never miss it ________ I have too much homework.A．unless B．until C．if D．since17．_______ China has controlled the virus, some people in other parts of the world still live in fear of their lives.A．While B．Although C．Unless D．Until18．—_________ I have tried many times, I can't work it out.—Don't give up and let's have another try together.A．Since B．Because C．Unless D．Though19．It’s almost three years ________we saw each ot her last time.A．since B．after C．when D．before 20．Benny, monitor of our class, is such ________ honest boy that we all trust him.A．a B．an C．the D．/21．you are very busy, I won’t go to Xuzhou Amusement Land with you.A．Unless B．Whether C．Until D．Since22．— I never knew you could make such delicious handmade noodles.—I learned it from an app ________ I stayed at home during the lockdown (封锁).A．since B．before C．when D．until23．—It's time for me to go back home now.—Really? ________ you have to go, take the umbrella, it's raining outside.A．If B．When C．Until D．Unless24．Dr. Smith will never leave his parents ________ he is sure both of them are taken good care of.A．since B．though C．if D．unless25．All students should keep taking exercise every day _______ they are busy studying so many subjects.A．until B．because C．though D．unless26．I go jogging every morning, ________ it is very hot outside.A．so B．but C．although D．because 27．Jack is still working to high standards ________ he has made great achievements.A．until B．if C．though D．because 28．The game show was so funny that he watched it for hours ________ he realized it.A．as B．since C．before D．after29．________ more and more people surf the Internet for news, the traditional newspaper may not disappear in a short time.A．Because B．If C．Though D．When30．________ she couldn’t see his face, she could tell by his voice that he was young.A．Unless B．If C．Though D．Because 31．Jack has made great progress ________ he joined the English club.A．when B．since C．while D．before32．— Will little John arrive on time?—I’m afraid not, ________ the sun rises in the west.A．if B．although C．until D．unless 33．Andrew thought there was something wrong with his robot ________ Samuel pointed out that he probably forgot to change the battery.A．until B．if C．after D．since34．— Why did your mother get ________ with you just now?—Because I made ________ many mistakes in the exam that she ________ controlled her feelings when she heard it.A．satisfied; so; really B．satisfied; such; nearlyC．angry; so; hardly D．angry; such; mainly35．—Too much homework has made me tired these days, Miss Wang.—That’s true. But a small tree won’t grow into a big tree ________ it experiences lots of winds and rains.A．if B．while C．when D．unless36．—Did you watch the Football League yesterday?—Yes, of course. I never miss it ________ I am too busy with my homework.A．unless B．until C．if D．since 37．—Labour education is an important course for students’ self-development.— Exactly. schools put it into practice, students will learn a lot.A．While B．Unless C．If D．As38．_______ she is wrong, it’s not a big deal.A．Because B．So C．Although D．But39．He realized his mistakes and took action to reduce the loss ________ it was too late. A．before B．unless C．if D．until40．A really great man is always modest ________ he has got a lot of achievements.A．but B．unless C．though D．because41．________ it has a long history, time hasn’t stopped the Forbidden City from trying to build bridges with young people through cultural products.A．Unless B．Because C．Although D．Since 42．Protecting wildlife is without doubt an important part, ________ each animal on Earth has a role to play in the ecosystem.A．since B．though C．unless D．if43．—Lucy, you can come to me for help ________ you get into trouble in your study at school.—Thanks, David. You are always helpful.A．although B．unless C．when D．since44．Mr. Wang, can I go to play football with my classmates ________ school is over?A．as soon as B．as well as C．as good as D．as many as 45．Suzy, you will achieve nothing ________ you devote yourself to your study.A．after B．though C．because D．unless46．Her job is not up to the boss's standard ________ she has worked at it for a week. A．since B．although C．if D．unless 47．Your parents love you so much ________ they seldom say, “I love you”.A．unless B．that C．because D．although 48．You will never grow ________ you try to do something beyond your abilities.A．when B．since C．though D．unless 49．—What is our head teacher like?—Oh, he is very kind ________ he looks very serious.A．because B．though C．if D．when 50．Grade 9 students should keep exercising ________ they are busy with so many subjects. A．if B．until C．though D．because【参考答案】***试卷处理标记，请不要删除一、选择题1．B【详解】句意：虽然我们认识很长时间了，但我们不是很亲密的朋友。
语言状语从句(9种
1．时间状语从句常用引导词：when, as, while, as soon as, before, after, since , till, until特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园), the moment they saw the guard.No sooner had I arrived home ,then it began to rain.Every time I listen to your advice, I get into trouble.2．地点状语从句常用引导词：where特殊引导词：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.地点状语从句§4地点状语从句 (adverbial clause of place) 地点状语从句一般由连接副词where, wherever等引导，已经形成了固定的句型，例如：句型1：Where＋地点从句，（there）＋主句。
【注意】此句型通常译成“哪里……哪里就……”；主句在从句后面时，there可用可不用；如果主句在从句的前面时，一般都不用there。
状语从句
• Since, as语气较弱。
• since引导的从句一般放在句首： • Since I haven’t got her address, I can’t write to her. • as引导的从句既可放在主句之前，也可放 在主句之后。 • As you were out, I left a message. • 你不在，所以我留了张字条。 • She may need some help as she’s new. • 她是新来的，可能需要一些帮助。
2)while表示从句动作和主句动作同时发生，且持续 一段时间。因此，从句的谓语动词常常是延续性 动词。
While they sang，they danced．
While the children were watching TV，their parents were reading books. 3)as主要指从句和主句动作同时发生，从句的动作 持续时间较短，可译做“一边…一边…”; 有时也 可表示两个动作正在发展、变化，作“随着…”讲。
• no sooner…than， hardly/scarcely…when, 这几个句型主句 使用过去完成时，从句使用一般过去时，
• We had no sooner set out than it began to rain．
• no sooner, hardly，scarcely放在句首时， 主句谓语要倒装。 • Scarcely /Hardly had we set out when it began to rain．
3．原因状语从句：
引导原因状语从句的词或词组有: because，since，as，seeing (that), now (that), consider (that), in that, not that..., but that等
完整版)状语从句(9种全)
完整版)状语从句(9种全)状语从句在复合句中起到修饰主句的作用，分为时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。
1.时间状语从句时间状语从句的连接词包括when。
as。
while。
after。
before。
since。
ever since。
as soon as。
once。
till。
until。
whenever。
no sooner…than。
hardly/scarcely。
when。
the moment/minute/instant/second。
every time。
each time。
any time。
the first time。
next time。
last time。
all the time。
by the time。
directly。
immediately。
instantly等。
例如，“一···就···”的句型可以用as soon as或once引导，其中as soon as侧重时间或动作先后衔接紧，而once侧重条件，表示“一旦。
”；on doing sth/on one's + n.作时间状语，例如On arriving at the n。
the thief was arrested.意为“一到达车站，这个小偷就被逮捕了。
”2.地点状语从句地点状语从句的连接词包括where。
wherever。
anywhere。
everywhere等。
例如，I'll go wherever you go.意为“你去哪儿，我就跟你去哪儿。
”3.原因状语从句原因状语从句的连接词包括because。
since。
as。
now that。
seeing that。
considering that等。
例如，Since it's raining。
we'll stay indoors.意为“因为下雨，我们将待在室内。
九大状语从句精讲课件高考英语一轮复习(2)
➢ As soon as I get to Beijing, I 'll call you. ➢ I will give you an answer immediately I have finished reading
your report. 倒装 They had hardly arrived at the airport when it began to rain. =Hardly had they arrived at the airport when it began to rain.
3. 原因状语从句
因为 because, as, for
既然 since=now that，considering 鉴于 按照语气逐渐递减： ➢ because 未知原因 强调原因 Tom’s absent today, because he's ill. ➢ since /now that 已知原因 强调结果 翻译成“既
2.在“It is +一段时间＋since ＋时 间点”始。 It is three years since the war
broke out. It is ten minutes since he slept.
他已经睡了十分钟了。
练习 1.He had left the town __b_e_fo_r_e she arrived. 2.As is reported, it is 100 years since Tsinghua University was founded.
直到铃响，他才醒来。
强调句: It was not until the bell rang that he wake up.
原因状语从句、目的状语从句、结果状语从句教学
can,could,will,would,may,might等。
I hurried B I would not late
for class. A since B so that C as if D unless
析：so that 引导的目的状语从句。
当主句和从句的主语一致时，从句通
such... such时形容词，修饰名词或名词词组
that...
例2：
I was
late
for
class
yesterday
D
there was something wrong with my
bike.
A when B though C until D because
析：because 引导的原因状语从句。
目的状语从句
常见的引导目的状语从句的引导词：so that(以便，为了)，in order that(以
注：当放在句末表示推断时，要用for，而 不能用because
because, as, since, for:
语 位置 意义
气
because 最 前或 “原因”；表客观因果 强 后 关系；回答“why”
as
较 前 “由于”；把众人所知
强
的事实当作理由
since 较 前 “既然”；就对方陈述
弱
的事实作为理由
I will tell you as soon as I C the
ticket to the football match. A. will get B.get C. got D. am getting
解析：as soon as 引导的时间状语从句，用 一般现在时表将来时。此句可译为：我一得 到足球比赛的票就给你打电话。
课件(目的状语从句)
3)as引导原因状语从句时表示附带说明 的“双方已知的原因”，含有对比说 明的意味，语气比since弱，较为正式， 位置较为灵活(常放于主句之前)
eg：As it is raining, you’d better take a taxi.
4)for表示原因，但并不说明主句行 为发生的直接原因，只提供一些辅 助性的补充说明，for只能放于主 句之后并且必须用逗号将其与主句 隔开。
目的状语从句:从句部分是用来补充 说明主句中谓语动词发生的目的的状 语从句。
常见的引导目的状语从句的引导词：so that(以便，为了)，in order that(以
便，为了),且从句中有情态动词
can,could,will,would,may,might等。
I hurried B I would not late
for class. A since B so that C as if D unless
析：so that 引导的目的状语从句。
当主句和从句的主语一致时，in order to do sth.结构。
They both worked day and night in order that they could pay off their debt. They both worked day and night in order to pay off their debt.
eg：He seldom goes out now, for he is very old
because, as, since, for:
语 位置 意义
气
because 最 前或 “原因”；表客观因果 强 后 关系；回答的
强
事实当作理由
状语从句讲义
状语从句（副词性从句）定义：状语从句是在句子中起副词作用的主谓结构。
状语从句种类：时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句、方式状语从句（共9种）（一）时间状语从句：注意：主将从现引导时间状语从句的连词: when, whenever, as, while, before, after, till, until, since, as soon as, once1. as soon as = On doing一…就…e.g. As soon as he heard the news, he jumped with joy. 他一听到这则消息，就高兴得跳了起来。
= On hearing the news, he jumped with joy.2. 相当于as soon as 的词或短语(1) the moment / the minute / the second / the instante.g. The moment he heard the news, he jumped with joy.The boy burst into tears the moment he saw his mother.(2) immediately /directly / instantlye.g. He jumped with joy instantly he heard the news.I recognized her instantly I saw her.(3) Hardly… when / No sooner… thane.g. No sooner had I begun to talk than he left.Hardly had I told him my name when he stopped listening.3. 充当连词的名词短语引导时间状语从句：(1) the moment / the minute / the second / the instant （如上）(2) the first time / the last time / the next time / every time / any time / by the timee.g. I thought her nice and honest the first time I met her.The next time you come to Beijing, you can live in my house.By the time he was fourteen years old, he had learned advanced mathematics all by himself.He will have learned English for eight years by the time he graduates from the university next year.4. when / while / as 用法比较：主句为短暂动作，从句为延续性动词的进行时态表示在一段时间内正在进行的动作，可互换：e.g. When/While/As I was walking down the street, I came across an old friend of mine.when(1) 当……时，引导持续或瞬间动作e.g. Are you going to be a doctor when you leave school?When I got there, the film had ended.(2) be about to do / be on the point of doing / be doing / be on one’s way to …whenwhen 相当于suddenly at this / that timee.g. I was doing my homework when the door bell rang.We were just on the point of calling you up when you came in.He was about to tell me the secret when someone patted him on the shoulder.I was on my way to school when a traffic accident happened.(3) 表“既然，鉴于，在这种情况下，在这种条件下”e.g. It was foolish of you to take a taxi when you could easily walk there in five minutes.How can you expect a good score when you never listen in class.Why did you post me the letter when we work in the same office?(4) when it comes to sth. / doing 当提及、当提到……e.g. He's an expert when it comes to computers.Most of us know we should cut down on fat, but knowing such things isn’t much help when i t comes to shopping and eating.注：when 引导名词性从句和时间状语从句的差别e.g. I will tell you when she will come. 宾语从句I will tell you when she comes. 时间状语从句while(1)表与……同时发生, 引导的时间状语从句必须用延续性动词或to be 表状态e.g. He was so tired. He fell asleep while (he was) reading the newspaper.Don’t talk so loud while others are working.(2)表趁着e.g. Strike while the iron is hot. 趁热打铁。
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状语从句在复合句中作状语的从句叫状语从句。
状语从句有时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。
一、时间状语从句引导时间状语从句的连接词有：when, as, while, after, before, since, ever since, as soon as, on ce, till, un til, whe never, no sooner •…tha n, hardly/scarcely...whe n, the moment/minute/instant/second, every time, each time, any time, the first time, next time, last time, all the time, by the time, directly, immediately, in sta ntly 等。
1. 表示一••就••的句型1) as soon as/onceAs soo n as he arrives, I'll call you他一到，我就给你打电话。
(as soo n as侧重时间或动作先后衔接紧，而once侧重条件，表示一旦...)”2) on doing sth/o n on e's + r作时间状语On arriving at the station, the thief was arrested.一到达车站，这个小偷就被逮捕了。
On his arrival in Paris, he was recognized as a noble and thrown into prison他一到达巴黎，就被认出是一个贵族，并被投入监狱。
3) no soon er ...tha n , hardly/scarcely...whe n它们表“一…就”。
结构中的否定词放在句首时，主句要倒装。
(主句都用过去完成时，从句用一般过去时。
)No sooner had he reached home tha n it bega n to rain.他刚到家，天就开始下雨了。
Hardly/Scarcely had I en tered the room whe n the phone rang.我一进屋，电话就响了。
注意当no sooner, hardly, scarcely不放在句首时，主句不倒装，如：I had no sooner reached the bus stop tha n the bus started.我刚到车站，车就开走了。
I had scarcely (hardly) entered the room when the phone rang.4) the moment, the instant, the minute, the secondThe mome nt I saw him, I recog ni zed him.我一看见他，就认出了他。
We'll leave the minute you are ready.你一准备好，我们就出发。
5) 有些副词如：in sta ntly, immediately, directly可用作连词，后接从句。
I left immediately the clock struck 5.我刚走，钟就敲了五点。
2. when, while, as引导时间状语从句1) when的用法①when既可指时间点，也可指时间段(即：从句动词可以是短暂的也可是延续的)；主从句动作可同时也可先后发生。
I was thin whe n I was a child.当我是个孩子的时候，我很瘦。
It was raining whe n I arrived.我至U达时，天正在下雨。
②在when引导时间状语从句时，如果从句主语与主句主语相同或为it，且从句有be动词，则从句可省主语和be动词，如：When (you are) in trouble, you can visit this man.当你有麻烦时，可以找这个人。
She is always listening to music when( she is) doing her homework. 当她做作业时，总是听音乐。
③when在下列结构中，译成“这时”，它引导的是并列句be about to do ... whe n, be doing ... whe n, had done -whe n,be on one's way ... when, be on the point of doing ... when (参见“连词”部分when 的用法)2) while 用法while只能指一段时间，从句中的动词必须是延续性动词。
强调某一段时间内发生主句动作，相当于during the time that....My mother was cook ing while I was doing my homework.当我在做作业时，妈妈在做饭。
I am safe while I am here我在这儿的时候，我很安全。
注意while除引导时间状语从句外，还引导对比句，作“然而”讲；并可在句首引出让步状语从句作虽然••但”讲。
I like watchi ng TV, while he likes read ing.我喜欢看电视，而他喜欢读书。
While he has his own car, he ofte n uses mine.尽管他自己有车，他却常用我的。
3) as的用法①as引导时间状语从句时常可和when换用，但较强调同时发生，多指短暂动作。
As I left the house, I forgot the key 我离家时，忘了带钥匙。
②as还可说明两种正在发展或变化的情况，“随着...”的意思，表时间的推移。
如：As I get older, I get more optimistic.随着年龄的增长，我变得更加乐观。
③as表“一边…一边…”，引出伴随动作。
He hurried home, look ing beh ind as he went.他匆忙地回家，边走边往后看。
④用以强调两个动作紧接着发生。
As he was going out, it bega n to rain.当他出去的时候，天开始下雨了。
⑤as有时引出一个名词，相当于一个时间状语从句。
As a boy (whe n he was a boy), he was hopeless at maths.当他是孩子时，他对数学失去希望。
3. before引导的时间状语从句做最好的自己①before引导的时间状语从句不用否定式谓语。
Before they got to the bus stop, the bus had gone.在他们到达公共汽车站之前，公共汽车已经走了。
②在“It be +时间段+ before从句”句型中，肯定句译成“…(之后)才”，否定句译成“…就”。
该句型有一般过去时、过去将来时、一般将来时三个时态，且有否定句。
It will be some time before... do...It was some time before...did...It would be some time before...did...It was long before...did... 很久才•“••”It was n't long before...did... 不久就…“”It will be many years before the chemicals start to escape fromthe con tai ners.多年以后化学物质才开始从容器中逃逸。
It was not long before he came bacl不久他就回来了。
It was a long time before he got to sleep again.很久他才再次入睡。
It was a week before he could tell his story.一个星期后他才能讲述他的经历。
It was n't l ong before he told us about himself.不久他就给我们讲述了他自己的故事。
▲ before可译成“未来得及”He had measured me before I could get a word.我还未来得及插话，他就量好了尺寸。
▲ before可译成“趁着还没”ril write it dow n before I forget.趁着还没忘我要把它写下来。
4. until 和till1) “延续性动词肯定式+until ”表示“动作延续到…为止，”译为“直到…为止”，如：I waited for him un til he came back.我一直等至U他回来。
2) “终止性动词的否定式+ until”表示“直到••才”。
He did n't go to bed un til he had fin ished his work.直到完成工作他才睡觉。
3) 用于强调句式“It is n ot un til ...that ... ”It was not un til the professor came that we bega n the experime nt.在教授到来之后，我们才开始实验。
4) not until放在句首时，主句倒装。
Not un til he graduated did he succeed in obta ining this compo und.直至U他毕业他才成功获得这种化合物。
注意句首和强调句中要用until，而不用till ; not...until...句型中不用till。
5. since引导时间状语从句，意为“自从…时起”，主句要用完成时。
Mr. Li has bee n here since he came back.自从李先生回来以后，他一直在这儿。
I have n't heard from him since he lived here.自从他住在这儿以来，我就没有收到过他的来信。
I've known Mr. Smith since I was a boy.我小的时候就认识史密斯先生了。
6. 时间状语从句的省略式当时间状语从句的主语和主句主语相同或为it，从句又含be动词时，从句可省略主语和be动词。
在不产生歧义时，连词也可省去。
如：Once （it is） see n, it can n ever be forgotte n.一旦被看见过，永远也不会被忘记。