人教版英语四年级上册:怎样用助动词do?

来源:百度文库 编辑:偶看新闻 时间:2024/05/08 14:15:16
助动词DO的用法比较多,它和情态动词,be动词是英语的三大主要辅助动词,基本上大多句子中都会用到。一句半句的说不完,给你点简单的例子吧:1) 构成一般疑问句,例如:Do you want to pass the CET? 你想通过大学英语测试吗?Did you study German? 你们学过德语吗?2) do + not 构成否定句,例如:I do not want to be criticized. 我不想挨批评。He doesn't like to study. 他不想学习。In the past, many students did not know the importance of English. 过去,好多学生不知道英语的重要性。3) 构成否定祈使句,例如:Don't go there. 不要去那里。Don't be so absent-minded. 不要这么心不在焉。说明: 构成否定祈使句只用do,不用did和does。4) 放在动词原形前,加强该动词的语气,例如: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。I do miss you. 我确实想你。5) 用于倒装句,例如:Never did I hear of such a thing. 我从未听说过这样的事情。Only when we begin our college life do we realize the importance of English.只有在开始大学生活时我们才认识到英语的重要性。说明: 引导此类倒装句的副词有never, seldom, rarely, little, only, so, well等。6) 用作代动词,例如:---- Do you like Beijing? --你喜欢北京吗?---- Yes, I do. --是的,喜欢。(do用作代动词,代替like Beijing.)He knows how to drive a car, doesn't he?他知道如何开车,对吧?