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1、学习好资料欢迎下载专题四状语从句英语中的状语从句用来修饰谓语或者整个主句按照功能可以分为：时间状从， 地点状从， 原因状从， 结果状从， 条件状从，目的状从，让步状从，方式状从，比较状从。1、时间状语从句（ 1）when、while、 as用法一览表。类别作用例句when (at or during the time that ) 既可以表示在某一点的时候，又可表示在某一段时间内，主句与从句的动作或事情可以同时发生也可以先后发生。It was raining when we arrived.( 指时间点 ) When we were at school, we went to the libr
2、ary every day.(在一段时间内 ) 注意： when 表“突然”while while 意思是 “当的时候” 或“在某一段时间里”。主句中的动作或事情在从句中的动作或事情的进展过程中发生，从句中的动词一般要用延续性动词。在when 表示a period of time 时，两者可以互换。Please don t talk so loud while others are working.He fell asleep while/when reading. Strike while the iron is hot. (用 as或 when 不可， 这里的 while 意思是 “趁”)
3、 as as表“当的时候”和when/ while 通用，但它着重强调主句与从句的动作或事情同时或几乎同时发生。还表示“一边一边”“随着”She came up as I was cooking.(同时 ) The runners started as the gun went off.(几乎同时 ) （2）引导时间状语从句的连接词除上述外还有：as soon as ，directly, immediately, the moment, the minute 一就As soon as I have finished it , Ill give yu a call.He made for the
4、 door directly he heard the knock. hardly / scarcely when, no sooner than,表示“一就”We had hardly got / Hardly had we got into the country when itbegan to rain. No sooner had he arrived / He had no sooner arrived than she started complaining. till, not until , until, before, since before 用法not until 强调，
5、倒桩since用法Dont get off the bus until it has stopped. Not until years later could I realize the value of that kind of giving. He waited for his father until(till)it was twelve oclock. It was not until years later that I could realize the value of that kind of 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - -
6、 - - - - - - - 名师精心整理 - - - - - - - 第 1 页，共 6 页 - - - - - - - - - 学习好资料欢迎下载giving She has been ill 谓语非延续，It is/ has been +一段时间+since从句非延续，自。以来，已经有。年。区分：It is two years since he began to smoke. It is two years since he smoked 肯定句：一段时间，距离+before 过了多久才？It will be five years before he returns from Engla
7、nd.Before :1和we waited along ime ,before he came out. .否定句一段时间、距离+ before 过不了多久就It won t be five years before he returns from England. 还没有，还没来得及，免得he died before he wrote a will.I must write it down before I forget,. each time, every time, by the time Each time he came to my city, he would call on m
8、e. 注意：表示未来情况，主句用将来时，从句用现在时。2、地点状语从句：where, wherever Make a mark wherever you have any questions. We will go where the Party directs us. 3、原因状语从句：because, as, since=now that （1）表示不知道的原因时用because, 即说话人认为听话人不知道，因此because从句是重要的部分，通常它被置于主句之后。You want to know why Im leaving? Im leaving because Im full.for
9、 虽然表示不知道的原因，但其语气较because要弱得多，是可说可不说的话，它只能置于主句之后，这时，for 是并列连词。如： It s morning now, for the birds are singing. （很显然，鸟叫不可能是“现在已是早上”的原因。）（2）表示已经知道的原因时用as 或 since,即某种原因在说话人看来已经很明显，或已为听话人所熟悉，因此它是句中不很重要的部分。 since 要比 as 正式一些，它们通常被置于语句之前。Seeing all of the children already seated, he said,“Since everyone is h
10、ere, lets start.”Nowthat/Since no one is against art, let s carry out the plan. 4. 条件状语从句：if, unless, so (as) long as, on condition that. in case, once 一旦 注意 if 与 unless的区别In case anything important happens，please call me up. My parents dont mind what job I do as long as I am happy. You can go swimm
11、ing on condition that you dont get too far from theriver bank._ you start eating in a healthier way, weight control will become much easier. A. unless B. Although C. Before D. Once 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 6 页 - - - - - - - - - 学习好资料欢迎下载5、
12、结果状语从句：so that, so that, such that 注意： so + 形容词 /副词+ that 从句； such +名词 + that 从句。6、目的状语从句：so that, in order that, for fear that in case 注意：目的状语从句的谓语动词常与情态动词连用，否则可能是结果状语从句。不可置于句首。He studied hard so that he might succeed. Come early In order that you may see him. I dare not go out for fear that he mig
13、ht see me. 7. 让步状语从句（1） although与 though 可以引导让步状语从句，不能与but 连用。Although they are poor, they are warm-hearted. （2） even if或 even though引导让步状语从句，表示“即使”，“纵然”. I ll get there even if(though)I have to sell my house to get enough money to go by air.（3） while 虽然While he is very young, he knows a lot of know
14、ledge . (4)whetheror; whether(.).or not Whether or not he agreed with Johns views, many of them thought deeply. Whether we go to your place or stay here, we ve still got to find something to eat. （5） no matter+who、what、where、how 等疑问词， =该疑问词 +ever 构成 whoever、whatever、wherever、however 等。Dont trust him
15、, no matter what / whatever he says.Whoever breaks the law will be published. No matter how hard the work is, youd better try to do it well.（6） as也可以引导让步状语从句。要用倒装。Child as(though)he is, he knows a lot. Much as I like it, I wont buy.Try as he would, he couldnt lift the heavy box.7、方式状语从句： as, as if(t
16、hough) I ll do as I am told to.It looks as if it is going to rain. 9.比较状语从句：than, as 注意：状语从句中从句的省略现象（1）连接词+ 过去分词名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页，共 6 页 - - - - - - - - - 学习好资料欢迎下载Dont speak until spoken to.Pressure can be increased when needed. Unles
17、s repaired, the washing machine is no use. （2）连词+现在分词Look out while crossing the street. （3）连词+ 形容词 /其他常见的有 if necessary、if possible、when necessary 、if any 等。高考真题探究（ 20062011 年）时间状从08 辽宁 I used to love that film_I was a child, but I dont feel it that way any more.B.when C.since D.although 【2011 浙江卷4
18、】One Friday, we were packing to leave for a weekend away _my daughter heard cries for help. A. after B. while C. since D. when 06 湖南 I had just stepped out of the bathroom and was busily drying myself with a towel_I heard the steps. A.while B.when C.since D.after 07 江西A.when B.before C.since D.that
19、07 安徽 The field research will take Joan and Paul about five months; it will be a long time _we meet them again. A.after B.before C.since D.when 陕西 John thinks it wont be long _he is ready for his new job. A. when B. after C. before D. since 09 上海 You cant borrow books from the school library _ you g
20、et your student card.A. before B. if C. while D. as 06 四川 -Why didnt you tell him about the meeting ？-He rushed out of the room_I could say a word. A.before B.until C.when D.after 07 天津A.until B.after C.since D.when 【2011 上海卷36】If a lot of people say a film i s not good, I wont bother to see it, or
21、Ill wait _ it comes out on DVD.A. whether B. after C. though D. until 06 广东 “You cant have this football back_you promise not to kick it at my cat again.” the old man said firmly.A.because B.since C.when D.until 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 6
22、页 - - - - - - - - - 学习好资料欢迎下载It was back home after the experiment. A. not until midnight did he go B. until midnight that he didnt goC. not until midnight that he went D. until midnight when he didnt goAs is reported, it is 100 years _QinghuaUniversity was founded. A. when B. before C. after D. sin
23、ce 【2011 辽宁卷29】He had no sooner finished his speech _ the students started cheering. A. since B. as C. when D. than 原因状从08 北京 Did you return Freds call? I didn t need to _ Ill see him tomorrow.A. though B. unless C. when D. because 06 广东 Jenny was very sad over the loss of the photos she had shot at
24、 Canada, _this was a memory she especially treasured. A.as B.if C.when D.where 条件状从07 上海 Small sailboats can easily turn over in the water_they are not managed carefully. il D.if 08 全国 Have you got any idea for the summer ? I don t mind where we go_theres sun, sea and beach.A.as if B.as long as C.no
25、w that D.in order that 09 陕西 My parents don t mind what job I do _I am happy. A. even though B. as soon as C. as long as D. as though 08 天津 We ll have a picnic in the park this Sunday _ it rains or its very cold.A.since B. if C. unless D. until 08 全国 A small car is big A.once B.because C.if D.unless
26、 06 江苏 _environmental damage is done, it takes many years for the ecosystem（生态系统）A.Even if B.If only C.While D.Once 让步状从【2011 全国卷 II 19 】It was a nice meal, _a little expensive.A. though B. whether C. as D. since 【2011 四川卷4】Frank insisted that he was not asleep _ I had great difficulty in waking him
27、 up. A. whether B. although C. for D. so 【2011 天津卷5】_ regular exercise is very important, its never a good idea to exercise too close to bedtime.A.It B. As C.Although D.Unless 10 湖南 Tim is in good shape physically _ _ he doesn t get much exercise.名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - -
28、- - 名师精心整理 - - - - - - - 第 5 页，共 6 页 - - - - - - - - - 学习好资料欢迎下载A. if B. even though C. unless D. as long as 07 浙江 Many of them turned a deaf ear to his advice, _they knew it to be valuable. A.as if C.even though D.so that 【2011 北京卷29】_ volleyball is her main focus , she s also great at basketball.A
29、. Since B. Once C. Unless D. While 【2011 陕西卷19】_all of them are strong candidates, only one will be chosen for the post. A. Since B. While C. If D. As 07 山东B.Since C.If D.While 08 湖南A.If B.While C.Because D.As 08 全国A.whatever 【2011 江西卷29】Please call my secretary to arrange a meeting this afternoon,
30、or _ it is convenient to you. A. whenever B. however C. whichever D. wherever 08 辽宁A.Whatever B.Whenever C.Wherever D.However 10 上海 _you may have, you should gather your courage to face the challenge. A. However a serious problem B. What a serious problem C. However serious a problem D. What serious a problem 36. A37. A38. B39. D40.A41. B42. D43. D44. C45. B46. D47. C48. A49. C50. B51. A52. C 53. D54. B55. D 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 6 页，共 6 页 - - - - - - - - -