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1、 状语从句的种类状语从句的时态特点一、时间状语从句二 地点状语从句三、条件状语从句四、原因状语从句五、目的状语从句六、结果状语从句七、让步状语从句八、比较状语从句九、方式状语从句十、状语从句在写作中的运用 状语从句的种类状语从句的时态特点一、时间状语从句二 地点状语从句三、条件状语从句四、原因状语从句五、目的状语从句六、结果状语从句七、让步状语从句八、比较状语从句九、方式状语从句十、状语从句在写作中的运用状语从句 （Adverbial Clause）状语从句指句子用作状语时，起副词作用的句子。它可以修饰谓语、非谓语动词、 定语、状语或整个句子。根据其作用可分为时间、地点、原因、条件、目的、结果
2、、让步、 方式和比较等从句。状语从句一般由连词(从属连词)引导，也可以由词组引起。从句位于 句首或句中时通常用逗号与主句隔开，位于句尾时可以不用逗号隔开。编辑本段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 cl
3、ause 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.方式状语从句；(adverbial clause of manner)9.结果状语从句。(adverbial clause of result)编辑本段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
4、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 w
5、ill come back）状语从句讲解和练习状语修饰动词、形容词、副词或整个句子。通常由副词、介词短语、动词不定式、 分词和从句等担当。例如：1. Naturally , our grandparents were pleased to get our phone call . (副词)2. We worked hard , from sunrise to sunset . (介词状短语)3. To help my disabled aunt , I spend an hour working in her house every day . (不定式)4. Seen from a dist
6、ance , the farmhouse looked deserted . (过去分词)5. I know how to light a camp fire because I had done it before .（原因状语从句）状语的位置比较灵活，可以位于句首、句末或句中。enough 用作状语修饰形容词 和副词时必须后置 状语从句主要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 用连接词和特殊的连接词即考
7、点。现分别列举如下: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 didnt realize how special my mother was until I became an adult.While
8、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 than 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
9、heavily polluted where there are factories.Wherever you go, you should work hard.3 原因状语从句常用引导词：because, since, as, for特殊引导词：seeing that, now that, in that, considering that, given that.My friends dislike me because Im handsome and successful.Now that everybody has come, lets begin our conference.The
10、 higher income tax is harmful in that it may discourage people from trying to earn more.Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4 目的状语从句常用引导词：so that, in order that特殊引导词：lest, in case, for fear that，in the hope that, for the purpose that, to the end
11、 thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5 结果状语从句常用引导词：so that, so that, such that,特殊引导词：such that, to the degree that, to the extent that, to such a degree
12、that,He got up so early that he caught the first bus.Its such a good chance that we must not miss it.To such an degree was he excited that he couldnt sleep last night.6 条件状语从句常用引导词：if, unless,特殊引导词：as/so long as, only if, providing/provided that, supposing that, in case that, on condition thatWell s
13、tart our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7 让步状语从句常用引导词：though, although, even if, even though特殊引导词： as(用在让步状语从句中必须要倒装)，while ( 一般用在句首 )，no matter ， in spite of the fact that,
14、 while, whatever, whoever, wherever, whenever, however, whicheverMuch as I respect him, I cant agree to his proposal.尽管我很尊敬他， 我却不同意他的建议。The old man always enjoys swimming even though the weather is rough.No matter how hard he tried, she could not change her mind.He wont listen whatever you may say.8
15、 比较状语从句常用引导词：as(同级比较), than(不同程度的比较)特殊引导词：the more the more ; just as ， so; A is to B what /as X is to Y; no more than; not A so much as BShe is as bad-tempered as her mother.The house is three times as big as ours.The more you exercise, the healthier you will be.Food is to men what oil is to machin
16、e. 食物之于人，犹如油之于机器。9 方式状语从句常用引导词：as, as if, how特殊引导词：the wayWhen in Rome, do as the Roman do.She behaved as if she were the boss.Sometimes we teach our children the way our parents have taught us.10. 状语从句的简化?状语从句的省略状语从句同时具备下列两个条件:主句和从句的主语一致，或从句主语为 it； 从句主要动词是 be 的某种形式。从句中的主语和 be 动词常可省略。例如：When ( the museum is ) completed , the museum will be open to the public next year .Hell go to the seaside for his holiday if (it is ) possible.另外，比较状语从句经常省略。
