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助动词学习资料.pptx

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助动词学习资料.pptx


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助动词;课程名称:助动词 教学内容:助动词的定义,用法 教学对象:中考生 教学目标:准确掌握助动词的用法 教学重难点:助动词的用法; ★We are having an English class.★ I have seen the film.★ He didn’t go home last night.★ We will fly for Africa next month.;★ He was sent to England. ★I would fly to Sweden if I were a bird. ★Had I lived in London, I would have been to London Bridge.;★Do you like college life? ★ Did you study English before you came here? ★ I do not like him.; 协助主要动词构成谓语动词词组的词叫助动词。被协助的动词称作主要动词,助动词自身没有词义,不可单独使用。助动词和其他动词一起构成时态、语气和语态。;助动词; 助动词be的用法:1)be +现在分词,构成进行时态。如:They are having a meeting. She was reading a book then.例题: Who___ ___the violin? 2)be + 过去分词,构成被动语态。如:The window was broken by Tom.English is taught throughout the world.例题:You ___ ___ to attend the meeting.; 练习题选择题1. Where is James ? He ___ with his brother. A. runs B. will run C. is running2. Who ___ in the next room ? Mary is. A. is singing B. is sing C. sings 3.-I called you at eight yesterday evening,but nobody answered.-Oh,I _________ in the library at that time. A.read B.reading C.am reading D.was reading ;4. ---I called you at half past nine this morning,but there was no answer.---Oh,sorry.I _____ with my cousin in the supermarket. A. shopping B.was shopping C.shopped D.will shop 5.The Olympic Games ___________every four years. A. are held B were held C.are holding D.will ho1d 6. Usually computers _________to search the Internet. A. use B. are using C. are used D. used7.Many trees and flowers ______ in our school last year,and they made our school a beautiful garden. A.plant B.planted C .have planted D.were planted ; ;练习题;5. ---- I’m sorry to keep you waiting. ----Oh, not at all. I _____here only a few minutes. A have been B had been C was D will be6. You don’t need to describe her. I _______ her several times. A. had met B have met C met D meet7. -----Will you go to Beijing for vacation ?-----I _____ to go , but I don’t know if I can go . A. was planning B. have planned C. had been planning D. have been planning ; 助动词do的用法:1)构成一般疑问句。如:Do you want to pass the CET?例题:___ you study German?  2)do + not 构成否定句。如:He doesnt like to study.例题:In the past, many students ___ ___ know the importance of English. ;3)放在动词原形前,加强该动词的语气。 Do come to my birthday party. 一定来参加我的生日宴会。 I did go there. 我确实去那儿了。例题:I __ __ you last night. 4)构成否定祈使句。如:Dont be so absent-minded.说明: 构成否定祈使句只用do,不用did和does。例题:____ be so careless. ;练习题; ; 情态助动词shall和will的用法shall和will作为助动词可以与动词原形一起构成一般将来时。 如:I shall study harder at English.  He will go to Shanghai.   例题:He ___ ___ twenty years old next month.;说明:现在,尤其是在口语中,will常用于各种人称,但shall只用于第一人称,如用于第二、第三人称,就失去助动词的意义,已变为情态动词, 试比较:He shall come.他必须来。(shall有命令的意味。)He will come. 他要来。(will只与动词原形构成一般将来时。); 情态助动词should, would的用法 should无词义,只是shall的过去形式,只用于第一人称,would也无词义,是

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