2022年初中状语从句总结及练习.docx
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1、精品_精品资料_状语从句1. 时间状语从句2. 条件状语从句3. 缘由状语从句4. 结果状语从句5. 比较状语从句6. 目的状语从句7. 让步状语从句8. 的点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. 依据其含义状语从句可分为时间状语从句,的点状语从句,条件状语从句, 缘由状语从句,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
2、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.(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.可编辑资料 - - - 欢迎下载精品_精
3、品资料_例如:Ill 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,假如主句用确定式, 其含义是 “始终到 时”,谓语动词只能用连续性动词.假如主句用否定式,其含义是 “直到 才”, “在 以前不”, 谓语动词可用瞬时动词.例如: The young man read till th
4、e 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:Ill help you with you
5、r 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.可编辑资料 - - - 欢迎下载精品_精品资料_Study hard and you will pass the exam.=If you study hard, you will pass the exam.3. 缘由状语从句(1) 缘由状语从
6、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, Ill ask someone else.(2) because 表示直接缘由,语气最强. Because 引导的缘由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缘由. 由 as 和 since 引导的缘由状语
7、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. 3because 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 sothat, such that, so that 引导.例如:He is so poor that he cant buy a bike for his son. She is such a good teacher
8、 that everybody likes her.My pencil fell under the desk, so that I couldnt see it. 2so 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可编辑资料 - - - 欢迎下载精品_精品资料_+ 形容词(副词) + that +从句”.例如: He was so glad that he couldnt say a word. The hall is so big that it can hold 2,000 peopl
9、e.Mother lives so far away that we hardly ever 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,也可以是不行数名词.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.He made such rapid pr
10、ogress 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
11、to miss it.3假如名词前由 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. He has so little time that he cant go to the cinema with you.5. 比较状语从句比较状语从句通常由 as as, 比较级 + than 等连词引导.例如: Tom runs faster than John does.可编辑资料 - - - 欢迎下载精品_精品资料_Th
12、is 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.区分这两种从句的方法
13、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:Though he is young, he knows a lot. Although I am tired, I must go on workin
14、g.(2) althoughthough 不能用在同一个句子中.例如:我们不能说: Though it was raining hard, but he still went out.应当说: Though it was raining hard, he still went out.或 It was raining hard, but he still went out.8. 的点状语从句的点状语从句经常由 where 来引导.例如:可编辑资料 - - - 欢迎下载精品_精品资料_Go where you like.Where there is a will, there is a way.
15、易混引导词 while, when, as的区分:1. when 既可以指 时间点 , 与瞬时动词连用,也可以指时间段 ,与连续性动词连用(=while ).如:When he came in, his mother was cooking.When While we were at school, we went to the library every day.While 表示时间段 , 因此, while从句的谓语动词要用连续性动词.如:Please dont talk so loud while others are working.As 与 when 用法相像,但着重强调主句动作与从
16、句动作同时发生,有随着 或一边 一边 之意.如:As you get older, you get more knowledge.随着年龄的增长,你获得的学问就越多.2. Because,as,since的区分:Because用于表示直接缘由 ,回答 why 提出的问题, 语气最强. As 用于说明缘由 , 着重点在主句,常译成 由于 . since 表示明显的或已知的理由或事实,常译成既然 .如:Water is very important because we cant live without it.He didnt come yesterday as his mother was i
17、ll.可编辑资料 - - - 欢迎下载精品_精品资料_Ill do it for you since you are busy.3. such that, so that, so that引导结果状语从句的区分:such 是形容词,修饰名词 ; so是副词,修饰形容词或副词.其结构如下:1) such + a n+形容词 +单数可数名词 +that 2) such+ 形容词 +复数可数名词 +that 3) such + 形容词 +不行数名词 +that .如:This was such a good film that I went to see it several times.It wa
18、s such good books that they sell well.It was such bad weather that I had to stay at home.He spoke so fast that I couldnt follow him.He is such a lovely boy that we all like him.=He is so lovely a boy that we all like him.注:在 形容词 +可数名词复数 / 不行数名词 结构中,当名词前有many, much, few, little表示数量的多少时,名词前用so.如:She m
19、ade so many mistakes that she didnt pass the exam.可编辑资料 - - - 欢迎下载精品_精品资料_【实例解析】1. You will stay healthyyou do more exercise, such as running and walking.A. if B. how C. before D. where答案: A.该题考查的是引导状语从句的从属连词的挑选.从意思上看,从句应是一个条件状语从句,在这四个选项中只有if 能引导条件状语从句,所以选A.2. -Shall we go on working.-Yes,I prefer t
20、o have a rest.A. when B. if C. because D. though答案: D.该题考查的是引导状语从句的从属连词的挑选.从意思上看,只有选though 才能说得通.3. None of us knew what had happenedthey told us about it.A. when B. until C. after D. though答案: B.该题考查的是引导状语从句的从属连词挑选.本句的意思是“在 以前我们没可编辑资料 - - - 欢迎下载精品_精品资料_人知道这件事. ”要表达着一意思应用 “not until ” 这一句型.4.-I hope
21、 youll enjoy your trip, dear.-Thank you, mum. Ill give you a call I get there.A. until B. as soon as C. since D. till答案: B.该题考查的是引导状语从句的从属连词的挑选.此题的意思是“一到那里,我就给你打电话. ”要表达这个意思应选用as soon as .挑选合适的连接词,完成以下句子.1. Jim spends a lot of money on bookshe is not rich.2. Kate fell into sleepshe was listening to
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