八讲状语从句.doc

状语从句状语从句 （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、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。1 百科名片状语从句 （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、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。2 种类1.时间状语从句2.地点状语从句3.原因状语从句4.条件状语从句5.目的状语从句6.让步状语从句7.比较状语从句8.方式状语从句9.结果状语从句状语从句的时态特点1、时间状语从句常用引导词:when, as, while, as soon as, while, 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 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 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, considering that, as much as, so much asMy friends dislike me because Im handsome and successful.Now that everybody has come, lets begin our conference.The 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 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 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, suppose that, in case that, on condition thatWell start 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, 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、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 machine. 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.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. 我到北京就将给你打电话。（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，绝不可用will arrive）As soon as I have finished this work, I will have gone 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,绝不可用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，绝不可用will 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)(当然，我们的祖父母乐于接到我们的电话)2. We worked hard , from sunrise to sunset . (介词状短语)(我们工作得很努力，从日出到日落。)3. To help my disabled aunt , I spend an hour working in her house every day . (不定式)(为了帮助我残疾的阿姨，我每天花一小时在她的房子里。）4. Seen from a distance , the farmhouse looked deserted . (过去分词)（ 从远处看，农舍显得空荡荡。）5. I know how to light a camp fire because I had done it before .（原因状语从句）（我知道如何点燃篝火，因为我曾经做过。）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点。现分别列举如下: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 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.3 时间概念在复合句中，由时间状语从句表示主句动作发生的时间。(在复合句中，要注意主句和从句的时态大多都要保持一致。）要点时间状语从句，由以下连词引导：when while as after before as soon as since till /until by the time 在时间状语从句中，要注意时态一致。一般情况下主句是将来时的时候，从句主要用一般现在时。when在.的时候Mozart started writing music when he was four years old.(在)莫扎特4岁的时候，开始写音乐作品。while在.期间He visited a lot of places while he was traveling.他在旅行期间参观了许多地方。as在.的同时；一边.一边.We always sing as we walk.我们总是一边走一边唱。Ill let him know as soon as she comes.她一来，我就会让他知道。after在.之后He left the classroom after he had finished his homework .他做完作业之后就离开教室。before 在.之前Mr. Brown had worked in a bank for a year before he came here.布朗先生来这里之前已经在一家银行里工作一年了。as soon as 一。就。We began to work as soon as we got there.我们一