高中英语语法连词ppt课件.ppt

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1、变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分 连连 词词变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分 连词是一种虚词连词是一种虚词, 在句中不单独充当句子成分，只在句中不单独充当句子成分，只起连接词起连接词与词、短语与短语以及句子与句子与词、短语与短语以及句子与句子的作用。在的作用。在汉语里，通常可以把两个或更多的句子连起来而不用连汉语里，通常可以把两个或更多的句子连起来而不用连词，这在英语中一般是不行的，句子只

2、要一超过两个，词，这在英语中一般是不行的，句子只要一超过两个，通常就要用连词连接。连词一般不重读，分为并列连词通常就要用连词连接。连词一般不重读，分为并列连词和从属连词。并列连词引出并列句，从属连词引出主从和从属连词。并列连词引出并列句，从属连词引出主从复合句。复合句。 并列句是由两个或两个以上互不依从的简单并列句是由两个或两个以上互不依从的简单句构成，由并列连词连接，并列连词前可用句构成，由并列连词连接，并列连词前可用“，”也可不用也可不用“，”。并列句中的前后单句。并列句中的前后单句可表同等关系、转折关系、选择关系和因果关可表同等关系、转折关系、选择关系和因果关系。系。变电站电气主接线是指

3、变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分表同等关系的并列连词：表同等关系的并列连词：and表转折关系的并列连词：译为表转折关系的并列连词：译为“但是但是” “然而然而”but yet while however nevertheless nonetheless表选择关系的并列连词：表选择关系的并列连词：or表因果关系的并列连词：表因果关系的并列连词：so变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分While可引导状语从句，表让步

4、和时间；可引导状语从句，表让步和时间；while还可连接并列句，表前后对比。还可连接并列句，表前后对比。I do every single bit of housework while he just does the dishes now and again. While I accept that hes not perfect in many respects, I do actually quite like the man.Strike while the iron is hot.I thought I heard him come in while we were having d

5、inner.(but)(although)(during)变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分but VS however However 放于句首句尾句中都可以放于句首句尾句中都可以, 但有但有逗号逗号与之隔开。与之隔开。But 转折意义更强烈转折意义更强烈, 既可以连接两个句子既可以连接两个句子, 也可以连接也可以连接句子中的两个并列成分。句子中的两个并列成分。Weve got so many troubles , however , we have solved most of them.

6、You know all this as well as I do, however.They like reading novels but they dont like writing it.变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分主从复合句主从复合句 让步状语从句让步状语从句 引导词引导词 although though even if even though while however whatever whoever whomever whenever wherever whichever

7、 no matter how what who whom when where which变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分 although/ though but although/ though still/yet 变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分1. Id love to come _ I cant make it till 8 oclock. A. so B. but C. how

8、ever D. while2. _ Im writing this, you can be doing something else. A. Before B. After C. Until D. While变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分3. Britain is not mountainous, _Italy is. A. however B. whileC. althoughD. unless4 Mr. Hall understands that _ maths has always

9、been easy for him, it is not easy for the students. A. unless B. since C. although D. when变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分5. He promised to help me. _,he is busy and hasnt come.A. While B. AlthoughC. However D. Whether6. Shes been learning Italian for six years, _

10、 she doesnt speak it very well. A. for B. so C. but D. as变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分7.They wanted to charge $5000 for the car, _ we managed to bring the price down. A. but B. so C. when D. since8. Somebody wants you on the telephone. _no one knows Im here. A.

11、 For B. And C. But D. So变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分9 You should try to get a good nights sleep_ much work you have to do. A. however B. no matter C. although D. whatever10. Some people waste a lot of food _ others havent enough to eat. A. however B. when C. a

12、s D. while11. _ he had to write a history paper. _ he couldnt find time to do it. A. Although; but B. Although; / C. Even thought; / D. Even if; /ADB变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分12 Excuse me for breaking in, _ I have some news for you. A. so B. and C. but D. ye

13、t13. _I accept that he is not perfect, I do actually like the person. A. While B. Since C. Before D. Unless 14. _modeling business is by no means easy to get into, the good model will always be in demand. A. While B. Since C. As D. If C变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要

14、组成部分15. Have you been to New Zealand? _No, Id like to, _. A. too B. though C. yet D. either 16 He can answer the question _ hard it is.however/no matter how17 I grew up in Africa , _ at least I should say that I spent much of the first ten years of my life there. A and B or C so D but变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分18 This is a very interesting book. Ill buy it , _ . A how much may it cost B no matter how it may cost C however much it may cost D how may it cost