复习专题状语从句综合测试卷

一、初中英语状语从句

1．________ I came back home yesterday, my mother was looking ________ a magazine. A．While; through B．When; through C．When; around

【答案】B

【解析】

【详解】

句意：昨天当我回到家的时候，我的妈妈正在浏览一本杂志。While当…时候，引导时间状语从句，从句中的谓语动词应该是延续性的；When当…时候，引导时间状语从句，从句中谓语动词可以是延续性的，也可以是瞬间性的；through穿过，通过；around周围。第一个空后came back是瞬间性动词，故不能用while引导，排除A。look through浏览；look around向四周看，根据句意可知应该是“浏览杂志”，故选B。

2．Many people do not realize the importance of health ______ they have fallen ill.

A．until B．while C．when D．after

【答案】A

【解析】

试题分析：句意：一些人直到失去了健康才意识到它的重要性。本题考查的是not…until 句型，“直到……才”。For为了；but 但是；as 作为。故选A。

考点：考查连词的用法。

3．________ there is danger on the internet, online insurance is still popular among the young. A．Unless B．Though C．Since D．Until

【答案】B

【解析】

【详解】

句意：虽然网上存在危险，但网上保险在年轻人中仍然很流行。考查连词辨析。A. Unless 除非，如果不，引导条件状语从句；B. Though尽管，虽然，引导让步状语从句；C. Since 自….以来，既然，由于，引导时间状语从句和原因状语从句；D. Until：到…为止，在…以前，直到，引导时间状语从句。根据句意可知前后句句意是转折关系，前句是让步关系，可知填Though；选B。

4．It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up.

A．so that B．because C．as soon as

【答案】A

【解析】

【详解】

句意“为了建立良好的亲子关系，孩子们有必要不时地与父母交流思想”。A.目的是，为的

是（引导目的状语从句）；B.因为（引导原因状语从句）；C.一……就……（引导时间状语从句）。根据句意可知，表示“目的是为了建立良好的亲子关系”，表示目的，故选A。

5．_____ the weather is fine tomorrow, we will go fishing.

A．As well as B．As soon as C．As long as D．As far as

【答案】C

【解析】

【详解】

C 本题考查连词短语用法。句意：只要明天天气好，我们就要去钓鱼。A. As well as也； B. As soon as意为：一……就； C. As long as只要；D. As far as意为：和……一样远。引导条件状语从句用as long as只要。故选C。

6．__________ you h ave tried it on, you can’t imagine how pretty the new style skirt is. A．Because B．Although C．Unless D．When

【答案】C

【解析】

本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。

7．—Mom, may I see the movie The Wandering Earth this weekend? I don't want to miss it.—Sure, if your homework___.

A．is finished B．will finish C．finishes D．will be finished

【答案】A

【解析】

【详解】

句意：妈，这周末我能去看《流浪地球吗》？我不想错过这部电影。可以，如果你的作业完成。

考查被动语态、条件状语从句。A. is finished（一般现在时，被动语态）；B. will finish（一般将来时）；. finishes（一般现在时）；D. will be finished（一般将来时，被动语态）；if引导条件状语从句，主句是将来时，从句用一般现在时表将来；从句的主语是your homework判断用被动语态，故选A。

8．He has made great progress his mother is very pleased with him.

A．so；that B．enough；to C．so；too D．such；that

【答案】D

【解析】

【详解】

句意：他已经取得了如此大的进步以至于他的妈妈对他非常满意。从句意可知这里需要用到“如此….以至于”so+形容词/副词+that或such+名词+that，根据句子中的great progress意

思是很大的进步，是名词短语，故用such…that, 故选D。

9． He made a mistake, but then he took action to change the situation ________ it got worse. A．until B．when C．before D．because

【答案】C

【解析】

试题分析：句意：他犯了一个错误，但他在它变得更糟前采取了行动改变现状。Until直到；when当···时；before在···之前；because因为。根据句意可知选C。

考点：考查连词。

10．____ I was in the US, I made a lot of American friends.

A．While B．Although C．Unless D．Until

【答案】A

【解析】

【详解】

句意：当我在美国的时候，我交了很多美国朋友。

考查连词辨析。while当……的时候，表时间；although尽管，表让步；unless除非，表条件，相当于if not；until直到，与not连用表示“直到……才”。根据I made a lot of American friends我交了很多美国朋友，可知是在美国的时候，故选A。

11．Mrs. White walks a dog in the park nearby every morning it’s rainy or windy.

A．since B．because C．unless D．until

【答案】C

【解析】

试题分析：句意：如果不刮风下雨，怀特夫人就会带狗到附近的公园散步。A.. since自从；B.. because因为；C.. unless如果不；D. .until直到……才。结合句意，故选C

考点：考查连词的用法。

12．We don't know the love of our parents _______ we become parents ourselves one day. A．until

B．after

C．when

D．since

【答案】A

【解析】

句意：直到有一天我们成为父母，才知道父母的爱。本题考查连词。A. until到…为止，在…以前; 直到…才;B. after在…以后;C. when当···时候；D. since自从; 从…以来;

Not until 直到···才···；不到···不···，是固定搭配，故选A。

13．-Is your WeChat account （账户） safe?

-Yes, even my father can't use it __________ I tell him the password.

A．when B．unless C．while D．if

【答案】B

【解析】

【详解】

句意：-你的微信账号安全吗？-是的，如果我不告诉他密码甚至我的爸爸都不能使用它。when当…时候；unless除非，如果不；while当…时候；if如果。根据句意my father can't use it…可知，这里应表示“不告诉他密码”，故应选B。

14．— When did you go to bed last night?

— ____________ I finished my homework.

A．Until B．Not until C．When D．While

【答案】B

【解析】

not …until 表示直到…才，与短暂性动词连用，故选B

15．The environment will be much worse ___________ everyone has a sense of protecting it. A．unless B．if C．so that

【答案】A

【解析】

【详解】

句意：除非每个人都有保护环境的意识，否则环境会更糟。考查连词辨析。unless除非，表条件，相当于if not；if如果，表条件；so that以便于，表目的。本句是条件状语从句，根据句意语境，可知if不合句意，故选A。

16．You will never achieve success _____you devote yourself to your work.

A．after B．if C．because D．unless

【答案】D

【解析】

句意：除非你把自己专心于你的工作，否则你将永远不会成功。after在……之后；if如果；because因为；unless除非；根据句意可知是unless引导的的条件状语从句；故选D。

17．______ many children lik e KFC, I think they’d better try not to eat it too often.

A．Because B．When C．Although D．If

【答案】C

【解析】

考查从句的知识。句意“尽管很多孩子喜欢吃KFC，单数我认为他们最好不要经常

吃。”because引导原因状语从句；when引导时间状语从句；although引导让步状语从句；if引导条件状语从句。题目表示的是让步。故选C。

18．--What a mess! The sharing bikes are thrown everywhere.

--Let’s collect and put them in the right place they can be used conveniently.

A．unless B．so that C．because D．so long as

【答案】B

【解析】

句意：——真是一团糟！共享自行车到处都是。——让我们把它们收集起来放在合适的地方，这样它们就可以方便地使用了。A. unless除非；B. so that以便；C. because因为；D. so long as只要。结合句意可知，此处是so that引导的目的状语从句，答案为B。

19．Chen Wei isn’t at school today ________ he is taking a robot competition in Shanghai. A．so B．because C．before D．if

【答案】B

【解析】

试题分析：句意：陈炜今天不在学校因为他在上海参加机器人竞赛。so所以；because因为；before在……之前；if如果。所以选B。

考点：考查连词。

20．---Did you catch what the teacher said?

---No. She spoke so fast _______ I couldn’t hear her very clearly.

A．which B．that C．when D．since

【答案】B

【解析】

考查从句的连接词。“你听懂老师讲的了吗？”“不。她说的那么快以至于我听得不是太清楚。”so...that...“如此......以至于......”，表示结果。故选B。

21．________ jeans were invented over 100 years ago, they're still in fashion today. A．Because B．If C．Although D．Since

【答案】C

【解析】

【详解】

句意：尽管牛仔裤在100多年前就被发明了，现在他们仍然很流行。

考查连词辨析。A. Because 因为； B. If 如果； C. Although 尽管； D. Since自从。结合句意，牛仔裤被发明了100多年，现在仍然流行。可知前后表示让步关系，故用连词although，故选C。

考点：考查连词的用法。

22．Lots of people exercise every morming_________bad weather stops them.

A．if B．unless C．until D．since

【答案】B

【解析】考查连词词义辨析。A. if“如果”；B. unless“除非；如果不”；C. until“直到”；D. since“自从；既然”。句意：很多人每天早晨锻炼 _______ 恶劣的天气阻拦他们。结合选项的意思和句意可知，用unless。故选B。

23．We can't cross the road the traffic lights turn green.

A．until B．if C．while D．as

【答案】A

【解析】

【详解】

句意：我们要等交通信号灯变绿了才能过马路。

考查从属连词。A. until直到；B. if如果；C. while当……时；D. as随着。根据前文的can’t，可知构成not…until…引导的时间状语从句，表示“直到……才……”，故选A。

24．Eddie was sleeping _______ Millie was reading a magazine.

A．until B．while C．before D．after

【答案】B

【解析】

【分析】

【详解】

试题分析：句意：埃迪在睡觉，同时米莉正在读一本杂志。until直到；while当……的时候，同时；before在……之前；after在……之后。while前后连接两个进行时态的句子。所以选B。

25．Pandas are facing danger!The situation won’t change humans stop killing.

A．unless B．though C．if D．after

【答案】A

【解析】

试题分析：句意：熊猫面临危险。如果人们不停止杀害熊猫，形势不会改变。此题考查连词，A如果不；B尽管；C如果；D在之后。根据句意，应选A。

考点：考查连词。

26．______ Mike didn’t win the race , he was still wearing a smile on his face.

A．If B．Since C．Although D．Because

【答案】C

【解析】

【详解】

句意：虽然迈克没有赢了比赛，但是他脸上仍然带着笑容。A. If 如果，引导条件状语从句；B. Since 由于，引导原因状语从句；C. Although 尽管，虽然，引导让步状语从句；D. Because 因为，引导原因状语从句。根据句意，故选C。

27．She was so angry at ______he was doing ______she walked out without a word. A．what; that B．that ; what C．what ; what D．that ; that

【答案】A

【解析】

【详解】

句意：她对他所做的事非常生气，一句话也没说就走了出去。

考查宾语从句和结果状语从句。本句整体是so…that结构，表示“如此……以致于……”，引导结果状语从句，后空需用that引导。同时，what he was doing又做了介词 at的宾语，是宾语从句；而设空处做从句动词do的宾语，that无实义，需用what引导。根据句意语境，可知选A。

28． The actor was happy he got a part in the a movie, _____ the part was a small one . A．since B．while C．though D．unless

【答案】C

【解析】

【详解】

句意：这个演员很高兴他在这部电影中有一个角色，尽管是一个小角色。

考查连词辨析。since既然，自从……以来，引导原因和时间状语从句；while当…时候，引导时间状语从句；然而，表示转折关系；though虽然，尽管，即使，表示让步关系；unless除非，引导否定的条件状语从句。结合句意，后一句表示角色小，前一句表示他对这个角色感到高兴，故前后表示让步关系，故用连词though。故选C。

29．Our head teacher often says, ＂You will not pass the exam ___________ you work hard.＂A．if B．unless C．since D．when

【答案】B

【解析】句意：我们的班主任常说："如果你们不努力学习，你们就通不过考试"。If如果，引导条件状语从句；unless除非，引导条件状语从句；since自从，因为，引导时间状语从句；when当……时候，引导时间状语从句；条件状语从句用一般现在时表示一般将来时，主句用一般将来时，根据题中的时态和句意，如果不努力，就通不过考试，故此处用unless。故选B。

30．---I’m afraid e-books might be bad for our eyes.

---Hmm, but they will be helpful for us_________we put them to good use.

A．as soon as B．as long as C．even though D．so that

【答案】B

【解析】

【详解】

句意“-恐怕电子书对我们的眼睛有害。-但是只要我们合理使用他们，他们就对我们有帮助”。A.一……就……（引导时间状语从句）；B.只要（引导条件状语从句）；C.尽管（引导让步状语从句）；D.目的是，为的是（引导目的状语从句）。根据句意可知，译为“只要我们合理使用他们”，表示条件，故选B。

二、初中英语虚拟语气

31．What_____you do if you had a million dollars ?

A．would B．will C．did D．do

【答案】A

【解析】考查点：虚拟语气。解题思路：根据句意:如果你有一百万你将会干什么？“如果你有一百万”是对现在的一种假设，与现在的事实相反。表示与现在事实相反的虚拟语气的结构是：主句用should/would/could/might+动词原形，从句用一般过去时态。故选A。

32．—Swimming in the river for teenagers is very dangerous.

—So it is. If I ________ them, I ________ a shower at home.

A．am; would take B．were; will take

C．was; would take D．were; would take

【答案】D

【解析】

试题分析：—在河里游泳对青少年是非常危险的。—的确如此。如果我是他们，我会在家洗澡。if从句表假设，与现在事实相反，be动词则用were ，无论第几人称做主语。主句常用would 跟动词原形。故选D。考点：考查固定句式的用法。

33．If I a boss, I would manage a big factory.

A．are B．was

C．were D．be

【答案】C

【解析】

试题分析：句意：如果我是老板，我会经营一家大型工厂。由句意可知，此句是虚拟语气，if引导的从句应该用过去式的形式，其中第一人称用were，故答案为C。

考点：考查虚拟语气。

34．If I you, I invite him to go to see a movie.

A．am, would B．were, will

C．were, would D．was, will

【答案】C

【解析】

试题分析：句意：句意：如果我是你，我会邀请他去看电影。go to see a movie去看电影；invite sb to do邀请某人做某事；在表达与现在事实相反的虚拟语气中，Be用were,主句用would。所以选C。

考点：考查虚拟语气。

35．I you about it becau se I don’t believe you.

A．wouldn’t rather tell B． would rather not to tell

C． would rather not tell D．wouldn’t rather telling

【答案】C

【解析】

试题分析：根据would rather +not+动词的原型，表示宁愿不做某事句意：因为我不相信你，所以我宁愿不告诉你这件事。Have a . pity 表示同情某人结合句意，故选C

考点：考查固定用法。

36． --What would you do if you won a million yuan? -- __________.

A．I shall give it to charities B．I will buy snacks

C．I won’t put it in the bank D．I’d give it to medical research

【答案】D

【解析】

试题分析：考查虚拟语气。句意：如果你有一百万，你会做什么？我会把它捐给医学研究。根据上文提到 What would you do if you won a million yuan 这是对现在的虚拟，所以回答时用would do ，故选D项。

考点：考查虚拟语气。

37．---If I were you, I ________ study harder

A．had B．would C．did D . do

【答案】B

【解析】

试题分析：虚拟语气是一种特殊的动词形式，用来表示说话人所说的话并不是事实，而是

一种假设、愿望、怀疑或推测。判断是真实条件句还是非真实条件句。只有在非真实条件句中才使用虚拟语气。通过句子意思，看假设的条件是否能够实现，能够实现是真实条件句，不能使用虚拟语气；假设的条件不能实现则是非真实条件句，要用虚拟语气.判断这个假设是与哪个事实相反。

1、与现在事实相反

若与现在事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”

2、与过去事实相反

若与过去事实相反，条件从句的谓语用过去完成时（had+过去分词），主句谓语用“should （would, could, might）+have+过去分词”

3、与将来事实相反

若与将来事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”：

句意：如果我是你，我会学习更努力。结合语境可知本句表示的是对现在的虚拟，故从句中用过去时态，主句中用过去将来时态。选B。

考点：考查虚拟语气

38．– I coughed a lot last night. What should I do?

– If I _____ you, I would go to see the doctor at once.

A．am B．were

C．was

【答案】B

【解析】

试题分析: 句意：昨晚我不停地咳嗽，我应该怎么办？哪果我是你，我就会马上去看医生。此句为虚拟语气，与现在事实相反，虚拟语气的条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”，故选C。

考点：考查虚拟语气。

39．You _______ through that red light, for you _______ an accident.

A．must have driven; should have caused B．could have driven; might have caused C．couldn’t have driven; should have caused D．shouldn’t have driven; could have caused 【答案】D

【解析】

【详解】

句意：你不应该开车闯红灯，因为你会引起事故的。

考查情态动词。分析句子及选项“You ___ through that red light, for you ____ an accident.”，

你开车闯红灯，因为你事故的，可知是对过去的虚拟，应用情态动词+have done。此处是不应该开车闯红灯，会引起事故，故选D。

40．Luckily, he wasn’t driving fast at the time of accident; otherwise, I am sure, it _______ a more serious accident.

A．would be B．were C．would have been D．had been

【答案】C

【解析】

【详解】

句意：幸运的是，事故发生时他没有开快车；否则，我相信，这将是一个更严重的事故。考查虚拟语气。根据“wasn’t driving”是过去进行时，所以此处是对过去的虚拟，主句时态应用情态动词+have done，故选C。

41．Yesterday, the storm delayed us. _______ the storm, we would have been here in time. A．But for B．If it were not for C．But that D．Unless

【答案】A

【解析】

【详解】

句意：昨天暴风雨耽搁了我们。要不是有暴风雨，我们会及时赶到这里的。

考查连词。But for要不是+短语；If it were not for要不是（用于对现在的虚拟）；But that 要不是+从句；Unless除非,后接条件状语从句；根据句中是“the storm”，是名词，所以排除C；根据“would have been ”，是对过去的虚拟排除选项B；分析句子“___ the storm, we would have been here in time.”有暴风雨，我们会及时赶到这里的，应该是“要不是”，故选A。

42．If I ____you, I _____the army.

A．am, would join B．were ,would join

C．am, will join D．were ,will join

【答案】B

【解析】

试题分析：虚拟语气是一种特殊的动词形式，用来表示说话人所说的话并不是事实，而是一种假设、愿望、怀疑或推测。其主要有三种结构：

1、与现在事实相反

若与现在事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”

2、与过去事实相反

若与过去事实相反，条件从句的谓语用过去完成时（had+过去分词），主句谓语用“should （would, could, might）+have+过去分词”

3、与将来事实相反

若与将来事实相反，条件从句的谓语用过去式（be通常用were），主句谓语用“should （would, could, might）+动词原形”。

句意：如果我是你，我会加入军队。结合语境可知本句描述的是与现状相反的事实，故选

B。

考点：考查虚拟语气。

43．—I don’t know what to wear at the party.

— If I you, I would wear a shirt and a tie.

A．am B．is C．were D．was

【答案】C

【解析】

试题分析：if从句的虚拟语气，对于现在的虚拟用一般过去式，be动词都用were,故选C.句意：——我不知道聚会该穿什么。——如果我是你，我会穿一件衬衫加一条领带。故选C 考点：if条件句的虚拟语气

点评：if条件句的虚拟语气，是中考要求掌握的知识点，分为三种情况：

表示与现在事实相反的情况，从句谓语动词用一般过去式（be用were），主句谓语动词用should/would/could/might +do;2.表示与过去的事实相反的情况，从句谓语动词用过去完成时，主句谓语动词用should/would/could/might+have done;3.表将来的事实相反的情况，从句谓语动词用should+动词/did/were to do，主句谓语动词用should/would/could/might +do。

44． If I went to the moon, I ______ bring something unusual back to the earth.

A．could

B．will

C．would

D．shall

【答案】C

【解析】

试题分析：此题考查if引导的条件状语从句的相关知识。根据语境可知此句的含义是如果我去月球，我会带回一些不同寻常的东西。这个假设成立的几率很小，故看为虚拟语气。根据语法知识可知从句要用一般过去时，主句要用过去将来时，过去将来时的基本构成would+动词原形，故选C。

考点：if引导的条件状语从句

点评：if既可以引导宾语从句又可以引导状语从句。if充当宾语从句的连接词时，相当于whether，词义为“是否”，遵循宾语从句的时态规则，可根据语境选择任何时态；充当从属连词，引导条件状语从句时，词义为“如果”，若主句中的谓语动词用一般将来时，则从句中的谓语动词通常用一般现在时表示将来。

45．--- If I_______ one million dollars, I would give it to medical research.

---If I _______ you, I would give it to charity.

A．will have, am B．would have, was C．had, were D．have, is

【答案】C

【解析】考察虚拟语气。第一空，虚拟语气，与现在相反，用过去时。第二空，虚拟语气，与现在相反，用过去时，be动词用were。故选C

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的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。While 有时还可以表示对比。While John was watching TV, his wife was cooking. as 意为“一边…一边…”。As 引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。The writer was angry as he was travelling on a train to London because someone had invaded his “space”. He smiled as he stood up. after 意为“在…之后”。表示主句动作发生在从句动作之后。主句与从句的动作时间关系与before引导的从句相反。With many hungry visitors waiting, don’t stay too long at your table after you have finished. If an early exit is necessary, you can leave after a scene is over. before 意为“在…之前”。引导的从句不用否定形式的谓语，并且当before引导的从句位于主句之后，有时译成 “就，才”。当主句用将来时，You can’t watch TV before you finish your homework. Before it ended, the theatre was almost empty. My father had left for Canada

中考专项训练状语从句专项练习(附答案)

中考专项训练状语从句专项练习(附答案) 一、初中英语状语从句 1．When you are in your school dining hall during lunchtime, you may feel lonely _______ you can find someone to have lunch with. A．if B．unless C．after D．because 【答案】B 【解析】【分析】【详解】句意：当你在学校食堂吃午饭的时候，你可能会感到孤独，除非你能找个人一起吃午饭。考查连词用法辨析。if如果，unless除非，都表条件；after表时间，because表原因。本句前后句是条件关系，可排除CD两项。根据句意可知if不合句意，故选B。 2．---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A．since B．unless C．when D．until 【答案】B 【解析】试题分析：句意：----你想要明天和我们一起去划船吗？好的，如果我不忙我就去。A自从；B如果不；C当……时候；D直到……才。根据句意，应选B。考点：考查连词。 3．She eats ice-cream a lot, ________it isn't good for her. A．after B．until C．because D．although 【答案】D 【解析】【详解】句意：她经常吃冰淇淋，虽然这对她不好。考查连词辨析。A. after在……以后，表时间；B. until直到，表时间；C. because因为，表原因；D. although尽管，表让步。本句前后是让步关系，需用although连接；根据句意语境，可知选D。 4．--- I wonder if Tina to China next week. --- If it ，she will come. A．will come；won’t rain B．comes；doesn’t rain C．comes；won’t rain D．will come；doesn’t rain 【答案】D 【解析】【详解】句意：——我想知道蒂娜下周是否会来中国。——如果不下雨，她就会来。根据语境推测

状语从句用法讲解和练习

第章状语从句学习指导状语从句在句子中作状语，用来修饰主句或主句的谓语。一般可分为九大类,分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。尽管种类较多,但由于状语从句与汉语结构和用法相似,所以理解和掌握它并不难。状语从句的关键是要掌握引导不同状语从句的常用连接词。现分别列举如下: 状语从句分九类：在这一章节的学习中，要求同学们掌握各类状语从句基本概念，并能够灵活应用。第一节时间状语从句时间状语从句用一般现在时表示将来。连接时间状语从句的连接词有：2．when，while，as均可表示“当……的时候”。 when强调“特定时间”，表示主句谓语动词的动作与从句谓语动词的动作是同时发生的，或从句的动作发生在主句的动作之前；while表示的时间是一段，而不是一点，as多用在口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。 When spring came, he felt like a trip.春天来了，他想去旅游。 As spring warms the good earth，all flowers begin to bloom．(as有“随着”的含义) as, when, while都表示主、从句的动作或状态同时发生，但三者也有

区别。as和when引导的从句既可表示一点时间，也可表示一段时间，从句中的谓语动词既可以是持续性动词，也可以为短暂性动词，经常可以互换使用；while引导的从句通常表示一段时间，从句中宜用持续性动词作谓语。当从句中的谓语动词为持续性动词时，这三者可以通用（前面例句中已有体现），再如： 1 / 18 Mother was worried because little Alice was ill, especially as / when / while father was away in France.妈妈担心，因为小艾丽思病了，特别是当父亲远在法国的时候。如果从句和主句要表示一个人的两个动作交替进行或同时完成时，则多用as，可译为“一边......，一边......”。例如： He looked behind from to time as he went.他一边走，一边不时地往后看。 As time goes on, it's getting warmer and warmer..随着时间的推移，天气变得越来越暖了。 I thought of it just as you opened your mouth.你一张嘴我就知道你要说什么。（若表示两个短促动作几乎同时发生时，用as的场合多于when.）当主从句之间表示转折或对比关系时，多用while, 不用as或when。如：

八年级下册-状语从句讲解

Adverbial Clause（状语从句） 1状语从句的种类用来修饰谓语动词、其它动词、定语、状语或整个句子的从句叫做状语从句。状语从句可分为： 1.时间状语从句；(adverbial clause of time) 2.地点状语从句；(adverbial clause of place) 3.原因状语从句；(adverbial clause of cause) 4.条件状语从句；(adverbial clause of condition) 5.目的状语从句；(adverbial clause of purpose) 6.让步状语从句；(adverbial clause of concession) 7.比较状语从句；(adverbial clause of comparison) 8.程度状语从句；(adverbial clause of degree) 9.方式状语从句；(adverbial clause of manner) 10.结果状语从句。(adverbial clause of result) 2状语从句的时态特点一般情况下，时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”，用“现在完成时”表示“将来完成时”。例如：I will call you as soon as I arrive in Beijing. 我一到北京就给你打电话。（这是由as soon as引导的时间状语从句，从句中的谓语动词arrive是一般现在时，表示一般将来时，决不可用will arrive）As soon as I have finished this work, I will go home. 我一完成此工作，就回家。（从句中的谓语动词用现在完成时have finished，表示将来完成时,决不可用will have finished）If he comes back, please let me know.如果他回来了，请通知我。（从句中的谓语动词用comes back,表示一般将来时，决不可用will come back） 3时间状语从句（adverbial clause of time） 1.由when, while, as引导的时间状语从句。例如：When you think you know nothing, then you begin to know something.当你以为自己一无所知的时候，你就是在开始知道一些事物了。 When truth is buried under the ground it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it.当真理被埋在地下的时候，它在生长，它感到压抑，它蓄存着这么一种爆炸性力量，一旦冒出，它就会炸破一切！Strike while the iron is hot. 趁热打铁。Will you watch my clothes while I have a swim. 我游泳的时候，请你照看一下我的衣服。You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候，你就能感觉到空气在流动。Our headmaster laughed as she spoke.我们的校长边谈边笑。 when, while和as的区别：when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。并且when有时表示“就在那时”。例如：When she came in, I stopped eating.她进来时，我在吃饭。(瞬时动词) When I lived in the countryside, I used to carry some water for him.当的住在农村时，我常常为他担水。（延续性的动词）We were about to leave when he came in.我们就要离开，就在那时他进来了。 While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。例如：While my wife was reading the newspaper, I was watching TV. (was reading 是延续性的动词，was reading和was watching同时发生) I like playing football while you like playing basketball.我喜欢踢足球，而你喜欢打篮球。（对比） As表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。例如：We always sing as we walk.我们总是边走边唱。（as表示“一边……一边”） As we was going out, it began to snow.当我们出门时，开始下雪了。（as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间） 2.由before和after引导的时间状语从句。注意before引导的从句不再用否定式的谓语，并且当before引导的从句位于主句之后，有时译成“就，才”。还要注意主句和从句之间的时间关系。当主句用将来时，从句总是用现在时；如果before引导的从句谓语用的是过去时，则主句动词多用过去完成时，这样以便体现动作发生的先后。After表示主句动作发生在从句动作之后。主句和从句的动作的时间关系正好与before引导的从句相反。例如：It will be four days before they come back. 他们要过四天才能回来。Einstein almost knocked me down before he saw me.爱因斯坦几乎把我撞倒才看到我。 My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了。 They had not been married four months before they were divorced. 他们结婚还不到四个月就离婚了。

状语从句讲解和练习

状语从句状语从句修饰主句/主句的谓语。一般有九大类：表示时间、地点、原因、目的、结果、条件、让步、比较和方式等。时间状语从句 1. 用when引导：when表示“当……时候”。如： Things were different when I was a child. 我小时候情况与现在不同。 People breathe more slowly when they are asleep. 人睡觉时呼吸比较缓慢。 2. 用while引导：while表示“当……时候”。如： We must strike while the iron is hot. 我们要趁热打铁。 I went swimming while the others played tennis. 我去游泳，其余的人都打网球去了。注意：while 所引导的时间状语从句中谓语动词必须是持续性的，不能是短暂性的。 3. 用as引导：as表示“当……时候”“随着”。如： He dropped the glass as he stood up. 他站起来时，把杯子摔了。 We get wiser as we get old. 随着年岁的增长，我们也变得聪明些了。 4. 用before引导：before表示“在……之前”。如： Turn off the lights before you go to bed. 睡觉前要关灯。 Before he went to university he was a worker. 上大学之前他是工人。 5. 用after引导：after表示“在……之后”。如： I will tell you after they leave. 他们走我再告诉你。 After you finish the letter show it to me．信写完后给我看看。 6. 用until / till引导：until / till表示“直到……”。如： He waited until she was about to leave. 他等着一直到她准备离开。 I watched him until he disappeared in the distance. 我瞧着他直到他在远处消失。这类句型的主句动词通常只能是延续性动词，不能是终止性动词。但是，在否定句中，主句动词可以是终止性动词，此时构成not…ntil [till]…句式，意为“直到……才……”。如：

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