初中英语语法条件状语从句

初中英语语法条件状语从句 篇一:初中英语语法归纳(状语从句) 初中英语语法归纳:状语从句 为了提高同学们的英语复习效率，中国教育在线整理了初 中英语语法之状语从句，状语从句是用来修饰主句中的动 词，副词和形容词的从句。根据其含义状语从句可分为时间 状语从句，地点状语从句，条件状语从句， 原因状语从句， 结果状语从句，比较状语从句，目的状语从句，让步状语从 句。 1. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如: It was raining hard when got to school yesterday. While he was doing his homework, the telephone rang. As he walked along the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. 1 (2)在时间状语从句里，通常不用将来时态，用现在时态 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 示将来的动作或状态。例如:I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句 里，如果主句用肯定式，其含义是“一直到……时”，谓语动 词只能用延续性动词。如果主句用否定式，其含义是“直 到……才……”, “在……以前不……”, 谓语动词可用瞬间动 词。例如: The young man read till the light went out. Let’s wait until the rain stops. We won’t start until Bob comes. Don’t get off until the bus stops. 2. 条件状语从句 (1)条件状语从句通常由if, unless引导。例如: What shall we do if it snows tomorrow? Don’t leave the building unless I tell you to. (2)在条件状语从句里，谓语动词通常用现在时态表示将来 的动作或状态。例如:I’ll help you with your English if am free tomorrow. He won’t be late unless he is ill. 2 (3)“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带 有条件状语从句的复合句。例如: Hurry up, or you’ll be late. =If you don’t hurry up, you’ll be late. Study hard and you will pass the exam. =If you study hard, you will pass the exam. 3. 原因状语从句 (1)原因状语从句通常由because, since, as引导。例如: He didn’t come to school because he was ill. As it is raining, we shall not go the zoo. Since you can’t answer the question, I’ll ask someone else. (2)because表示直接原因，语气最强。Because引导的原 因状语从句多放在主句之后。回答由why提出的问题，只能 用because。As和since语气较弱，一般用来表示明显的原 因。由as和since引导的原因状语从居多放在句首。例如: ------Why aren’t going there? ------Because I don’t want to. As he has no car, he can’t get there easily. Since we have no money, we can’t buy it. (3)because和so不能同用在一个句子里。 篇二:初中英语语法——状语从句 初中英语语法全解(第六版)朱崇军主编 3 状语从句 定义:在复合句中修饰主句中的动词、形容词、副词等的从句叫状语从句。状语从句分为时间状语从句、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。 1、时间状语从句 在句中相当于时间状语的从句叫时间状语从句，常由as soon as, when, while, as, after, before, since, ever since, till, until, every time, each time, next time等引导。 While I played the piano, my sister did her homework.我在弹钢琴，姐姐在做功课。 高频考点..................时间状语从句中的时态 在时间状语从句中，用一般现在时表示一般将来时，用一般过去式表示过去将来时。如:Don’t forget to bring your DV5000 camera here when you come.你来时别忘记带DV5000摄像机。 2、地点状语从句 在句中相当于地点状语的从句叫地点状语从句，常由where等引导。 We live where the road crosses the river.我们住在河流与街道交叉的地方。 3、原因状语从句 在句中相当于原因状语的从句叫原因状语从句。引导原因状语从句的常用词有because, as, since, now that等。 4 Roman was absent from school because he was ill.罗曼病了，没上学。 要点拓展 For 和上述三个从属连词不同， 它是一个并列连词。它有时可用来作附加说明。一般把for引起的句子放于某一句子之后。 We should be more careful, for it is already dark.天已晚了，我们应更小心些。 4、目的状语从句 在句中相当于目的状语的从句叫目的状语从句，常由in order that, so that 引导。 Rhonda spoke very slowly in order that we could follow her.朗达讲话很慢，以便我们大家都能跟上。 5、结果状语从句 在句中相当于结果状语的从句叫结果状语从句。常用来引导结果状语的引导词或短语有:so that, so...that... , such...that...等。 Harvey made so many mistakes that he failed the exam once again.哈维出了这么多错，考试又没有及格。 疑难辨析............................................such...that与so...that Such后跟名词，“a/an(+形容词)+可数名词单数”，“形容词+不可数名词或可数名词复数”。So后跟形容词、副词，“形容词+a/an+可数名词单数”，“few/little/many/much+可数名 5 词复数或不可数名词” 6、条件状语从句 在句中相当于条件状语的从句叫条件状语从句。常用来引导条件状语的连词有if, unless, as/so long as, once等。 If you correct all your mistakes, your work will be nice.如果你能把所有的错误改正，你的作业会很出色。 高频考点........................................条件状语从句的时态 在条件状语从句中，用一般现在时替代一般将来时，一般过去时替代过去将来时。 If the weather is fine tomorrow, we’ll go hiking.明天天气好的话，我们就去徒步旅行。 7、让步状语从句 在句中相当于让步状语的从句叫让步状语从句，常用的引导词有though， although，even though，even if，whatever，whoever，whomever，whosever, whenever, wherever, however等。 Whatever you do，you should do it well.不管做什么事，都要做好 8、比较状语从句 用来进行比较的状语从句叫比较状语从句，常用来引导比较状语从句的连词有as...as... , not as/so...as... , than等。 You can take as many books as you need.你需要多少 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 就拿多少书。 6 9、方式状语从句 在句中用作方式状语的从句叫方式状语从句，常用来引导方式状语从句的连词有as, as if, as though等。 He speaks English as if he were a native American.他英语说得像是美国人。 张道真初中英语语法 第十八章 状语从句 学习导航 状语从句结构复杂，种类繁多，使用频繁。学习状语从句时，分清主、从句间的逻辑关系是关键。主要注意以下几点: 1.熟悉每个连词的意义和用法。尤其注意用法灵活的连词(如while可以表示“在......期间;然而;虽然”意义)。 2.了解各种状语从句的分类情况及经常使用的连接词间的区别(如表示时间的连接词when, as, while, once, until, since 等的区别)。 3.能够在语境中判断主、从句之间的逻辑关系，选择适当的连词。 4.掌握状语从句与其他从句的区别。 语法视窗 在主从复合句中修饰主句中的动词、形容词、副词等的从句叫作状语从句。由于其功能与副词非常相近，所以有时也被称作副词性从句。状语从句可分为时间状语从句、地点状 7 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、比较状语从句和方式状语从句。 一、时间状语从句 在句中起时间状语作用的从句称为时间状语从句，常用when(当......时)，while(当......时)，as(当......时)，before(在......之前)，after(在......之后)，since(自从)，until/till(直到)，as soon as(一......就......)等引导。时间状语从句可以放在句首、句中或句尾。 1.when，while，as引导的时间状语从句 When，while，as的用法区别详见第六章 I feel very happy when you come to see me. 你们来看我时，我感到很高兴。 特别提示 When也可以作并列连词，表示一个动作正在进行的时候，突然间发生了另外一 个动作。常与be about to 或进行时态的句子连用。 I was fishing by the river when someone called for help.我正在河边钓鱼，突然有人喊救命。 While也可以作并列连词，表示两者之间的对比关系。 I like listening to music，while my brother likes doing sports. 我喜欢听音乐，而我的弟弟爱好运动。 2.Before引导的时间状语从句 8 Before引导的时间状语从句，意为“在......之前”，表示主 句的动作发生在从句的动作之前，从句的谓语不用否定式。 He had been a cook before he went to college. 他上大学前曾当过厨师。 3.after引导的时间状语从句 After引导时间状语从句，意为“在......之后”，表示主句的 动作发生在从句的动作之后。 I will go out to play basketball with you after I finish my homework. 我做完功课后就和你一起出去打篮球。 4.since引导的时间状语从句 Since引导的时间状语从句，意为“自从......”，主句常用现 在完成时，从句常用一般过去时。 (1)since引导的从句谓语如果是非延续性动词，则时间 的起点应该从动作发生时算起。 Mr. White has been here since he came back. 自从怀特先生回来以后，他一直在这里。 (2)since引导的从句谓语如果是延续性动词，则时间的 起点应该从动作结束时算起。 I haven’t met him since I was a student at school. 自从毕业以后，我一直没有见过他。 特别提示 9 Since常用于“It is/has been+时间段+since从句”句式，译为“自从......有多长时 间了”。 It is/has been six years since she graduated from the university. 自从她大学毕业，已有六年的时间了。 5.until/till引导的时间状语从句 Until/till引导的时间状语从句，意为“直到......时”，表示主句的动作发生在从句的动作之前。当主句的谓语是延续性动词时，主句常用肯定形式;当主句的谓语是非延续性动词时，主句常用否定形式。Not...until...意为“直到......才......”，此时until/till可以用before来替换，从句一般位于主句之后。Not until/till引导的从句位于句首时，主句要用部分倒装语序。 I will wait for my friend until/till he comes.我要一直等到我朋友来。 6.as soon as引导的时间状语从句 as soon as引导的时间状语从句意为“一......就......”，表示从句的动作一发生，主句的动作马上就发生。从句位于主句前后均可。 As soon as he heard the news, he jumped with joy. 他一听到这个消息，高兴得跳了起来。 10 7.once引导的时间状语从句 Once引导时间状语从句，意为“一旦......就......”，相当于as soon as。从句位于主句前后均可。 Once you start，you will never give up.一旦你开始了，就不要放弃。 特别提示 时间状语从句中，一般要用一般现在时代替一般将来时，一般过去时代替过去将来时。 I will telephone you when you comes.他来了我会打电话告诉你。 Before，after，until/till，since等连词也可作介词，其后跟名词、代词或动名词，构成介词短语，作时间状语。 I’m afraid we can’t reach home before six o’clock. 恐怕6点之前我到不了家。 二、地点状语从句 在句中作地点状语的从句称为地点状语从句，常用where(哪里)，wherever(无 篇三:初中英语语法状语从句 精华版 状语从句 状语从句用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句， 原因状语从句，结果状语从句， 11 比较状语从句，目的状语从句，让步状语从句。 1. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如: When while as 的 区别It was raining hard(下大雨) when got to school yesterday. While he was doing his homework, the telephone rang. the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表 示将来的动作或状态。例如: I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句里 如果主句用肯定式，其含义是―一直到……时‖，谓语动 词只能用延续性动词。 如果主句用否定式，其含义是―直到……才……‖, ― 在……以前不……‖, 谓语动词可用瞬间动词。 例如: . Let’s wait until the rain stops. We won’t start until Bob comes. 12 Don’t (从下来) until the bus stops. 【。固定组合里from morning till night，till/until是不能 替换的，】 2. 条件状语从句 (1)条件状语从句通常由if, unless引导。例如: What shall we do if it snows tomorrow? Don’t leave the building unless I tell you to. (2)在条件状语从句里，谓语动词通常用现在时态表示将来 的动作或状态。例如: I’ll help you with your English if am free tomorrow. He won’t be late unless he is ill. (3)―祈使句 + and (or)+ 陈述句‖ 在意思上相当于一个 带有条件状语从句的复合句。例如: Hurry up, or you’ll be late. =If you don’t hurry up, you’ ll be late. Study hard and you will pass the exam. =If you study hard, you will pass the exam. 3. 原因状语从句 (1)原因状语从句通常由because, since, as引导。例如: He didn’t come to school because he was ill. go the zoo. Since you can’t answer the question, I’ll ask someone else. 13 (2) bcause since as for because表示直接原因，语气最强。Because引导的原因状语从句多放在主句之后。回答由why提出的问题，只能用because。As和since语气较弱，一般用来表示明显的原因。由as和since引导的原因状语从居多放在句首。for并列连词，正式，例如: ------Why aren’t going there? ------Because I don’t want to. As he has no car, he can’t get there easily. Since we have no money, we can’t buy it. (3)because和so不能同用在一个句子里。 4. 结果状语从句 (1)结果状语从句由so…that, such…that, so that引导。例如: He is so poor that he can’t buy a bike for his son. She is such a good teacher that everybody likes her. My pencil fell under the desk, so that I couldn’t see it. (2)so…that语such...that可以互换。例如: 在由so...that引导的结果状语从句中，so是副词，与形容词连用。其结构是: ―...so + 形容词(副词)+ that + 从句‖。例如: He was so glad that he couldn’t say a word. 14 The hall is so big that it can hold 2,000 people. see her. 在由such…that引导的结果状语从句中，such是形容词， 它修饰的可以是单数或复数可数名词，也可以是不可数名 词;名词前面可以带形容词，也可不带。如果是单数可数名 词，前面需加不定冠词a或an。例如: It was such a hot day that nobody wanted to do anything. He had such long arms that he could almost touch the ceiling.(天花板) He made such rapid progress that he did very well in the mid-term. 有时上述两种结构是可以互换的。例如: It was such a wonderful film that all of us wanted to see it again. =The film was so wonderful that all of us wanted to see it again. It is such an important match that nobody wants to miss it. =The match is so important that nobody wants to miss it. *(3)如果名词前由many, much, little, few等词修饰时，只 能用so, 不用such。例如: Soon there were so many deer that they ate up all the wild roses. 15 He has so little time that he can’t with you. 5. 比较状语从句 比较状语从句通常由as+原级…as, 比较级 + than…等连 词引导。例如: Tom runs faster than John does. This classroom is as big as that one. 6. 目的状语从句 (1)目的状语从句通常由 so that, in order that(为了，以 便)引导。例如: We started early so that we could catch the first train. He studies hard so that he could work better in the future. We used the computer in order that we might save time. (2)so that既可引导目的状语从句，又可引导结果状语从 句。区别这两种从句的 办法 鲁班奖评选办法下载鲁班奖评选办法下载鲁班奖评选办法下载企业年金办法下载企业年金办法下载 有两个:1)目的状语从句里往往 带有情态动词can, could, may, might等。2)从意思上看，目 的状语从句往往表示的目的很明确。例如: Speak clearly so that they may understand you. (目的状语 从句) Jack is badly ill so that he has to rest. (结果状语从句) 7. 让步状语从句 (1)让步状语从句通常由although, though等连词引导。例 如: 16 Though he is young, he knows a lot. Although I am tired, I must go on working. (2)although(though)不能和but用在同一个句子中。yet可 以。例如: 我们不能说:Though it was raining hard, but he still went out. 应该说:Though it was raining hard, he still went out.或 It was raining hard, but he still went out. 8. 地点状语从句 地点状语从句常常由where来引导。例如: Go where you like. Where there is a will, there is a way. 总结 初级经济法重点总结下载党员个人总结TXt高中句型全总结.doc高中句型全总结.doc理论力学知识点总结pdf :状语从句分类及常用连词: 类别 连 词 时间状语从句 when, whenever, while, as, before, after, since, till, once(一旦) 地点状语从句 where, wherever 原因状语从句 because, since, as, for, now that(既然， 由于)etc. (et cetera，等于and so on) 目的状语从句 in order that(为了，以便), so that, that, etc. 结果状语从句 so…that, so that, such…that, that, etc. 条件状语从句 if, unless, as(so)long as, etc. 17 让步状语从句 though, although, even if, even though, however, whatever, as, etc. 比较状语从句 as…as, so…as, than, etc. 方式状语从句 as, as if, as though, etc. 例题解析:举一反三，学的更轻松～ 2.though/although ---Yet 3. 巩固练习:熟能生巧，取得好成绩～ 能力提高练习 1U ( ) 1 The meeting didn't start___ everyone was there. A. because B. until C. why D. if ( ) 2 The boy ___ to bed ___ his mother came in. A. went not; until B. didn't go; after C. went; until D. didn't go; until ( ) 3 I won't believe you___ I have seen it with my own eyes. A. before B. until C. after D. when ( ) 4 He ___ home ___ she was satisfied ___ his answer yesterday. A. didn't go; until; withB. wasn't go; after; to 18 C. doesn't go; before; withD. didn't go; until; to ( ) 5 He ___ back until the work ___ done. A. isn't; will beB. isn't; is C. won't be; will be D. won't be; is ( ) 6 They didn't start the work ___ their teacher came back. A. until B. while C. as soon as D. if 2 SJ ( ) 1 Tom will call me as soon as he ___ Shanghai. A. arrives B. will reach C. arrives in D. get to ( ) 2 I'm sure he'll come to see me before he ___ Beijing. A. will leave B. is leaving C. leave D. leaves ( ) 3 I will tell him the news as soon as he___ back. A. come B. comes C. will come D. came 3 ST 一般过去/过完/现完 ( ) 1 Tom has got a watch. He ___ it for two years. It _______ by his father. A. has bought; was boughtB. has got; is bought , C. was bought; has boughtD. has had; was bought ' ( ) 2 When he got to the station, the train ___. 19 A. left B. had left C. leaves D. has left ( ) 3 The boy told his father what he ___ in the street. A. saw B. have seen C. had seen D. see ( ) 4 We ___ TV when the telephone ____. A. watched; was ringing B.were watching; rang C. watch; rings D. are watching; rang ( ) 5 By the end of last term, I___ ten books. A. had finished reading B. have finish reading C. had finish to read D. finish read 4S since /for ( ) 1 I ___ you for a long time. Where ___ you ___? A. didn't see; did; go B. didn't see; have; gone C. haven't seen; have; been D. haven't seen; have; gone ( ) 2 Tom___ China for 3 years. A. has been B. has been in C. has been to D. has been at ( ) 3 I won't go to see the film tonight, because I ___ my ticket. A. lost B. have lost C. will lose D. didn't lose ( ) 4 -Hello! May I speak to Bob? -Sorry, but he ___ for a month. 20 A. had been away B. was left C. left D. has been away ( ) 5 I ___ him since I began to live in the city. A. know B. have known C. knew D. will know ( ) 6 Zhao Lan ___ already ___ in this school for two years. A. was; studying B. will; study C. has; studied D. are; studying 5Y ( ) 1 Betty didn't go to see the film yesterday ___ she was ill. A. because B. but C. until D. if =( ) 2 May I sit nearer___I can see more clearly? A. as if B. so that C. even if D. so ( ) 3 ___ you work hard, you will certainly succeed. A. Though B. If C. Because D. For ( ) 4 ___ he came to study in the university, he has made much progress in the study of English. A. While B. When C. Since D. After ( ) 5 I'd like to go swimming _____ the water is not too cold. A. for B. unless C. if D. whether 6B 21 ( ) 1 There are ___ many league members in class 2 ___ in Class 4. A. both; and B. 'so; that C. either; or D. as; as ( ) 2 -Do you ha ve a big library? -No, we don't. At least, not___yours. A. as big as B. as big than C. as bigger than D. bigger as ( ) 3 Suzhou is not ____ beautiful ____ Hangzhou. A. as; than B. so; as C. even; than D. /; than ( ) 4 Iron is more useful ___ any other metal. A. as B. than C. then D. so 7T ( ) 1 I want to know ___ she is going to see a film. A. if B. that C. what D. which ( ) 2 You are sure to pass the exam ___ you study hard. A. if B. thoughC. that D. since ( ) 3 I'll go to see the film with you___I have time this evening. A. whether B. so C. if D. when ( ) 4 ___ you study harder, you'll never pass the final exam. A. If B. Until C. Unless D. Except 22 相关热词搜索:状语 从句 英语语法 初中 条件 高中英语 语法状语从句 英语状语从句语法讲解 23