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1、状语从句一定义：起副词作用，修饰主句动作，表明动作发生的时间，地点，原因，条件，方式，目的，结果等。We took photos there.We took photos in front of the tower.We took photos where stood the tower.二引导状语从句的从属连词分类 状语从句从属连词时间状语从句when,while,as,since,before,after,till,until,once,as soon as,immediately,instantly,the moment,the mimute,the second,the instant
2、,the day,the first time,every/each time,hardlywhen,no soonerthan地点状语从句where, wherever, everywhere原因状语从句because, since, as, now (that), considering (that), in that条件状语从句If如果, unless除非, as/so long as只要, on condition that条件是, in case万一； only if只要, suppose/supposing (that)假如, provided/providing (that)假如
3、方式状语从句as象一样, as if/though仿佛, the way用的方式目的状语从句in order that目的是, so that目的是, in case以免, for fear that以免, lest以免，以防结果状语从句so that以致, so/suchthat如此以致比较状语从句.asas not as/soas than not suchas the sameas让步状语从句though,although,as虽然(用在倒装句中),even if/though即使,while虽然,no matter who/what/when/where/how/why,无论是谁/什么
4、/何时/何地/怎么/为什么whoever， whatever, whenever,wherever,however,whether(or)无论是还是, in spite of the fact that, despite the fact that三使用注意点1时间状语从句（1） when 可指“一段时间”也可指“时间点”，译为“在。期间”“就在。时候”，从句中的动作可以是持续的也可以是短暂的 while 只可指“一段时间” ，译为“在。期间” 从句中的动作是持续的 as 表示动作与主句动作同时发生，动作可以是短暂的也可以是持续的 He entered the room _ the meeti
5、ng was going on. _ he comes, Ill tell him about it. _ Jim was reading, Tom was writing. _ she saw me, she waved at me.(2) 一些名词或副词可转化为连词，引导时间状语从句 表示“一就” the moment/minute/second/instant, immediately, instantly 表示“每当” every/each time 表示“第一次” the first time 表示“那一天/年” the day/year _ you arrive there, se
6、nd me a telegram. _ I saw her, I fell in love with her. He rushed into his bedroom _ he heard the sudden noise.（3）“hardlywhen”与“no soonerthan”连接两个动作时，表示动作几乎同时发生，当hardly,no sooner位于句首时，主句中助动词提前倒装。 I had hardly/no sooner stepped out when/than it began to rain. Hardly/No sooner had I stepped out when/t
7、han it began to rain.（4）until和till引导的时间状语从句 相同点肯定句中指“主句动作延续到until或till引导的时间为止”，否定句中指“主句动作直到until或till引导的时间为止才发生” I waited until/till he came back. 我一直等到他回来。 I didnt finish the work until/till he came back. 直到他回来我才完成了这项工作。 不同点a. till一般用在非正式场合，until用法较为正式。 b. till引导的时间状语从句不可置于主句前，until引导的时间状语从句可置于主句前或
8、后。c. till一般不用于强调与倒装句式，until可以用与强调与倒装句式，且主句否定词not置于until从句前。It was not until the war was over that he was able to return to his country.Not until the war was over was he able to return to his country.2. 地点状语从句（1）注意区分where引导的地点状语从句、定语从句、名词性从句This is the place (where he lives).This is where he lives.We
9、 have found where he lives.We found him 【where he lived】.We found the place (where he lived). 注意点：只有在定语从句中where才可换为“介词in/at/on/+which”，但状语从句，名词性从句中不可以换。（2）everywhere 副词- 作状语 连词- 引导地点状语从句 I have looked for the book everywhere. 副词 everywhere I have been. 连词（3）wherever 引导地点状语从句 引导让步状语从句 Wherever he goe
10、s,he will buy his son a gift. 无论他去哪里，他都会给他儿子买个礼物。 他会在他去的任何地方买个礼物给他的儿子。3原因状语从句（1）because 从属连词 引导的原因状语从句一般放在主句后，语气最强，表示直接原因 since 从属连词 引导的原因状语从句一般放在主句前，译为“既然”，表示已知的显然的理由 as 从属连词 引导的原因状语从句一般放在主句前，表示的理由最弱，只是对主句的附带说明 for 并列连词 连接两个并列句，前句表示推论，后句为作出推论的理由。 He didnt come _ he was ill. He didnt come _ I didnt
11、see him in the hall. _ we didnt see him, lets begin our meeting without him.（2）considering (that)考虑到。Considering (that) he is old, he is rather energetic.Considering(=In view of) his old age, he is rather energetic.（3）now (that)既然。 Now (that) you have passed the driving test, you can drive alone.（4）
12、in that 基于。理由，因为。 He is thought to be the most suitable person for the job in that he has a rich knowledge of English.4条件状语从句（1） if 如果，假如 unless 如果不，除非 Ill go tomorrow unless it rains. We wont wait for him if he doesnt come before 12:00. unless he comes before 12:00. 注意点 不要将unless纯粹译为“除非”来解题，要替换为“if
13、not”。（2） only if “只要”，引导条件状语从句(=as/so long as=on condition that) if only “要是。就好了”，后接一个完整句子（用虚拟语气），或引导条件状语从句 Only if you keep on trying, you can succeed. If only she were with me!（3）provided/providing (that); supposing/suppose (that); in case 表示“假如，万一” Provided/Providing (that)Supposing/Suppose (that
14、) we dont have a day off, what shall we do?In case5方式状语从句（1）as if/though意义为“仿佛，好像”引导方式状语从句或表语从句，可以用陈述语气，表示（可能）符合事实的情况；也可以用虚拟语气，表示不符合事实或与事实相反的情况。It looks as if/though it is going to rain/ It looks like rain. He speaks as if/though he were a chinese. He behaved as if/though he had been there.（2）名词the way转化为连词引导方式
