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。 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? 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。 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。 |