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1、专题九状语从句一、地点状语从句地点状语从句通常由where, wherever 引导。Where there is a will, there is a way. Wherever you go，Im right here waiting for you. 二、方式状语从句 方式状语从句通常由as, (just)as.so., as if, as though引导。1as，(just)as.so.引导的方式状语从句通常位于主句后，但当(just)as.so.结构位于句首时，as从句带有比喻的含义，意思是“正如；就像”，多用于正式文体。Always do to the others as you
2、 would be done by. As water is to fish, so air is to man. Just as we sweep our rooms, so we should sweep backward ideas from our minds.2.as if, as though两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反；有时也用陈述语气，表示所说情况是事实或实现的可能性较大。译作“仿佛似的；好像似的”。They completely ignore these facts as if (as though)they never existed
3、. He looks as if ( as though)he had been hit by lighting. It looks as if the weather may pick up very soon.三、原因状语从句 比较because, since, as和for的用法： 1because语势最强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知的，就用as或since。I didnt go, because I was afraid. Since / As the weather is so bad, we have to delay our j
4、ourney.2由because引导的从句如果放在句末，且前面有逗号，则可以用for来代替。如果不是说明直接原因，而是多种情况加以推断，就只能用for。He is absent today, because / for he is ill. He must be ill, for he is absent today.四、目的状语从句 表示目的状语的从句可以由 so that, in order that, lest, for fear that, in case等词引导。You must speak louder so that / in order that you can be hear
5、d by all. He wrote the name down for fear that(lest)he should forget it. Better take more clothes in case the weather is cold. 五、结果状语从句 结果状语从句常由so.that 或 such.that引导。so.that与such.that之间可以转换。The boy is so young that he cant go to school. He is such a young boy that he cant go to school.六、条件状语从句 连接词主要
6、有 if, unless, as / so long as, on condition that等。Lets go out for a walk unless you are too tired. If you are not too tired, lets go out for a walk.七、让步状语从句 1.though, although引导的让步状语从句，后面的从句不能有but，但是 though 和yet可连用。 Although its raining, they are still working in the field.He is very old, but he sti
7、ll works very hard. Though the sore is healed, yet a scar may remain.2as, though 引导的让步从句必须将表语或状语提前(形容词、副词、分词、实义动词原形提前)。Child as / though he was, he knew what was the right thing to do. 3ever if, even though“即使”。Well make a trip even though the weather is bad. 4whether.or.“不管都”。Whether you believe it
8、 or not, it is true. 5“no matter 疑问词”或“疑问词ever”。 No matter what happened, he would not mind. Whatever happened, he would not mind.高考对状语从句的考查主要体现在省略，时态的替代，语序的倒装以及连词的辨析四个方面。1成分的省略(1)在时间、地点、条件、让步、方式等状语从句中，如果主语是it或与主句的主语一致，且谓语动词含有be时，可把从句的主语和be一起省略。Dont speak until (you are) spoken to.Do come to see me
9、whenever (it is) possible.(2)在比较状语从句中，可省略与主句相同的部分。I know you more than he (knows you)Tom is two years older than Alice (is)(3)as (尽管)引导让步状语从句倒装时，表语提前，且其前的冠词要省略。Hero as he is, he has shortcomings.2时态的替代(1)在时间、条件和让步状语从句中须用一般现在时替代一般将来时，用一般过去时替代过去将来时。If it rains tomorrow, we wont go fishing.Dont get off
10、 the bus until it has stopped.(2)The more.the more.句型中，前句起条件状语从句作用，故用现在时表将来。The harder you work, the greater progress youll make.(3)after, before, as soon as等连词本身就暗示了时间的先后，因此可用一般过去时代替过去完成时，而不会产生时间上的混乱。I went to bed after I (had) finished my homework.The film star (had) left before the reporter arriv
11、ed.He got down to work as soon as he (had) go to the factory.3语序的倒装(1)no sooner.than., hardly / scarcely / barely.when.句型中的主句常用过去完成时，从句常用一般过去时，且置于句首时主句要倒装。No sooner had he got home than it began to rain.(2)so / such.that.，not until.置于句首时主句要倒装。So angry did she feel that she couldnt speak.Not until he
12、 told me the truth did I realize what had happened.4连词的辨析。根据上下文的语意推断属于哪种状语从句，然后选择连词。高考真题探究（20062011年）【2011全国卷II 19】It was a nice meal, _a little expensive. A. though B. whether C. as D. since【答案】A【考点】考查连词。句意：那顿饭真美味，尽管有点贵。Though”尽管”，引导让步状语从句，该句使用了省略形式，补全为“though it was a little expensive”注意as也可以表示“尽管
13、”，但as作此意时必须使用倒装结构。【解析】【2011北京卷 29】_ volleyball is her main focus, shes also great at basketball. A. SinceB. OnceC. UnlessD. While【答案】D【考点】考查让步状语从句。【解析】句意为：虽然排球是她的主要项目，但她还擅长篮球。while“虽然，尽管”，引导让步状语从句。Since“自从”once“一旦”unless“除非”均不合题意。【2011上海卷 36】If a lot of people say a film is not good, I wont bother t
14、o see it, or Ill wait _ it comes out on DVD.A. whetherB. afterC. thoughD. until【答案】D【考点】考查状语从句。【解析】句意为：如果众人都说一部电影不好，我不会急着去看，或者会等到结果出来。【2011上海卷 37】The police officers in our city work hard _ the rest of us can live a safe life.A. in caseB. as ifC. in order thatD. only if【答案】C【考点】考查状语从句。【解析】句意为：为了让我们大
15、家过上平安的日子，我市警察工作非常卖力。【2011江西卷 29】Please call my secretary to arrange a meeting this afternoon, or _ it is convenient to you. A. wheneverB. howeverC. whicheverD. wherever【答案】A【考点】考察状语从句连接词【解析】whenever无论何时，however然而 whichever任何一个 wherever 无论哪里。请打电话给我的秘书安排今天下午的会议，或者在任何你方便的 。关系副词在后句中充当状语，根据语境可知是指时间，选A。【2011浙江卷 4】One Friday, we were packing to leave for a weekend away _my daughter heard cries for help.A. a
