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1、连词连词although_but_while和和however请观察下列句子请观察下列句子, 注意总结注意总结while和和although的用法。的用法。 1. Schools in the north are well-equipped, while those in the south are poor. 2. While Im cleaning the floor, you can clean the windows. 3. While we dont agree with each other, we continue to be friends. 4. Although born
2、in Chicago, the author is most famous for his stories about New York City. 5. Although he said he was ill, yet I saw him in the street just now.【总结归纳】【总结归纳】1. while的用法: 1)表示对比,意为“而;然而”。 2)引导时间状语从句,意为“当时候;在期间”,强调某一段时间内主句和从句的动作在同一时期发生,while从句中的动词通常是延续性动词。 3)引导让步状语从句,意为“虽然,尽管”,多放在句首。2. although的用法: alt
3、hough为从属连词,意为为从属连词,意为“虽然,尽管虽然,尽管”,引导让步状语从句。注意以下两点:引导让步状语从句。注意以下两点: 1)although在大多下数情况下可与在大多下数情况下可与though通用,但在正式文体中,通用,但在正式文体中,though可用可用于于一一 种不以其为首的让步状语从句,这种从句种不以其为首的让步状语从句,这种从句须以形容词、名词或动词(原形)须以形容词、名词或动词(原形)等开等开 头,整个从句须置于主句之前。这时头,整个从句须置于主句之前。这时although不能替换不能替换though。如:。如:Tired though he was, he went
4、on working.(他虽然累,但还是继续工作。)(他虽然累,但还是继续工作。) 2)although所引导的从句不能与所引导的从句不能与but,and,so,however等连用,但可以和副词等连用,但可以和副词yet, still等连用。等连用。二、请观察下列句子,注意总结二、请观察下列句子,注意总结however和和but的用法。的用法。 1. I was going to write you a letter, but I lost your address. 2. However, I can discuss this all when I see you. 3. He said
5、that it was so; he was mistaken, however. 4. He hasnt arrived. He may, however, come later.【总结归纳】【总结归纳】 but与与however都表示都表示“但是,然而但是,然而”,都可以引导并列句,但二者用法有些区别。都可以引导并列句,但二者用法有些区别。 1. 从语义上看,从语义上看,but所表示的是非常明显所表示的是非常明显的对比,转折的意味较的对比,转折的意味较however要强。要强。 2. 从语法上看,从语法上看,but是个并列连词,而是个并列连词,而however是个连接副词。是个连接副词。
6、3. 从语序上看,从语序上看,but总是位于它所引出的总是位于它所引出的分句之首,而分句之首,而however却可位于分句之首、却可位于分句之首、 之中或之尾。之中或之尾。从标点上说,从标点上说,but之后一般不使用逗号,但之后一般不使用逗号,但however则通常用逗号与句子其他部分则通常用逗号与句子其他部分 分开。分开。练习:练习: 一、从一、从A、B、C、D四个选项中,选出可以填入空白四个选项中,选出可以填入空白处的最佳选项。处的最佳选项。1._ the Internet is of great help, I dont think its a good idea to spend to
7、o much time on it. A. If B. While C. Because D. As2.In some places women are expected to earn money _ men work at home and raise their children. A. but B. while C. because D. Though3. Are you ready for Spain? Yes, I want the girls to experience that _ they are young. A. while B. until C. if D. Befor
8、e4.We had to wait half an hour _ we had already booked a table. A. since B. although C. until D. Before5.Although badly hurt in the accident, the driver was _ able to make a phone call. A. still B. even C. also D. Ever. 用用but,however,although和和while填空。填空。 1. , they did not seem to have much effect.
9、2. He drives not carefully slowly. 3. many difficulties are still ahead, we are determined to make greater achievements. 4. He said that it was so; he was mistaken, .5. He looks honest, actually hes a rogue (无赖无赖). 6. He went out for a walk, I stayed at home. 7. cold it is, she always goes swimming.
10、 8. Im very sorry, I cant see you today Keys:. 1. However 2. but 3. Although 4. however 5. but 6. while 7. However 8. but . 单项填空。单项填空。 1. Someone wants you on the phone. nobody knows I am here. 2011年全年全国国I卷卷 A. Although B. And C. But D. So 2. regular exercise is very important, its never a good idea to exercise too close to bedtime 2011年天津卷年天津卷. A. If B. As C. Although D. Unless 3. you may have, you should ga
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