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1、高考英语之状语从句知识梳理及考点扫描种类连接词注意点时间状语when, whenever, while, as, before, after, until, till, by the time, as soon as, hardlywhen, no soonerthan, the moment/the minute/ immediately/directly/instantly主句表示将来意义时，从句须用一般现在时；while引导的从句中动词一般是延续性的；until用在肯定句中主句动词是延续性的，而否定句中主句动词为短暂性的。地点状语where, wherever原因状语because, a
2、s, since, now that（既然）because语气最强，since较弱，表示大家都明了的原因，as又次之。条件状语if, unless, once, as(so) long as, （只要）on condition that, provided (that)，suppose / supposing（假设），从句中动词时态不可用将来时，常用一般时代替目的状语so that, in order that, for fear that，lestin case（万一）so that和in order that后常接may, should, could, would等情态动词结果状语so t
3、hat, sothat, suchthatso + 形容词或副词+ that ；such + 名词+ that 。比较状语than, asas, not so/asas, the morethe more方式状语as if/as though（好像）, asas if 和as though从句一般用虚拟语气。让步状语though, although, even if/even though, no matter what/ who/ which/ how/ whenwhatever, whoever, whichever, however, whenever, as, whether or ,
4、 while (虽然)as在让步状语从句中常用倒装形式；although和though可和yet/still连用，但不可和but连用；如果主句用一般将来时，从句通常用一般现在时代替一般将来时。 使用状语从句时要注意的几个问题1、注意时态替代 Well go outing if it doesnt rain tomorrow. Ill write to you as soon as I get to Shanghai.2、注意省略现象As (he was) a young man, he was a storekeeper and later a postmaster.If (it is) ne
5、cessary Ill explain to you again.3、注意区分不同从句。如：以where为例，能引导多种从句You are to find it where you left it.（地点状语从句）Tell me the address where he lives.（定语从句，句中有先行词）I dont know where he came from.（宾语从句）Where he has gone is not known yet.（主语从句）This place is where they once hid.（表语从句）状语从句难点考点大扫描考点一：时间状语从句【考例1】H
6、e transplanted the little tree to the garden _ it was the best time for it .(05上海)A. where B. when C. that D. until解析 句意为：在最合适的时候，他将小树移植了。【考例2】-Im going to the post office. -_ youre there ,can you get me some stamps? A. As B. While C. Because D. If (99全国) 解析 虽然as和while 都可表示“在期间”，但as要与动作动词连用，而本题的“are
7、 there ”是状态，不是动作，只能用while，故选B。【考例3】The young mostly enjoy pop music _the old usually prefer classical.A. When B. Because C. While D. After【考例4】Someone called me up in the middle of the night, but they hung up _ I could answer the phone.(2000全国) A. as B. since C. until D. before解析 句意为：有人半夜打来电话，但是我还没来
8、得及接，对方就挂了电话。before的本意为“在之前”，根据具体语境还可理解为“还没来得及/还没有就。【考例5】We were told we should follow the main road _ we reached the central railway.(04辽宁) A. whenever B. until C. while D. wherever解析 句意为：有人告诉我们，我们应当沿着这条主道往前走，直走到中心火车站。【考例6】 Did you remember to give Mary the money you owed her?Yes ,I gave it to her _
9、 I saw her.(01北京)Awhile B. the moment C. suddenly D. once解析 句意“我一看见她就还给她了”。表示“一就”的连词：as soon as ;the minute, the second, the instant; immediately, directly, instantly; no soonerthan，hardlywhen注意区分It be since/before/when 句型：“It be +时间段+since”表示“自从以来有多久了”“It be +时间段+before”表示“过之后才”，若be 是否定，则“没过就”。“It
10、be +时间点+ before”表示“在之前，时间是”。“It be +时间点+when”表示“当时，时间是”。如：【考例7】 It is almost five years _we saw each other last time. (05北京春)A. before B. since C. after D. when解析 句意“我们自上次见面以来已经五年了”。其中it is也可说成it has been.【考例8】. It was some time _ we realize the truth. (05山东)A. when B. until C. since D. before【考例9】.
11、 Did Jack come back early last night?Yes. It was not yet eight oclock _ he arrived home (05福建)A. before B. when C. that D. until考点二：地点状语从句【考例】The famous scientist grew up _he was born and in 1930 he came to Shanghai. A. when B. whenever C. where D. wherever (2002上海)考点三：条件状语从句引导条件状语从句的从属连词有if ,unless
12、(=if not如果不，除非)，as/so long as ,while(=as long as 只要), supposing(that),provided/providing(that),in case(假使)，on condition that(在的条件下)等。如：【考例1】It is known to all that _you exercise regularly, you won，t keep good health. A. unless B. whenever C. although D. if (05重庆)解析 由句意“如果你不经常锻炼，你就没有好的身体”可知选_。【考例2】I
13、know the money is safe, I shall not worry about it. (03北京)A. Even though B. Unless C. As long as D. While解析 句意为：只要我知道这引起钱是安全的，我就不担心了。可知选_。考点四：目的状语从句引导目的状语从句的从属连词有 so that , in order that (为了，以便)；in case(以防，以免)，lest(免得，以防)，for fear that(以免，惟恐)等。从句中一般含有can, could, may, might ,will, would等情态动词。如：【考例1】I
14、d like to arrive 20 minutes early _I can have time for a cup of tea.(05全国)A. as soon as B. as a result C. in case D. so that解析 句意为：为了有时间喝杯茶，我想早到20分钟。【考例2】I always take something to read when I go to the doctors _ I have to wait.(2005全国) A. in case B. so that C. in order D. as if考点五：原因状语从句引导原因状语从句的从属连词有because, since, now (that),when(既然),as, seeing (that)(由于),considering (that),given (that)(考虑到)等。如：_ youve got a chance, you might as well make full use of it.(1999全国)A
