剑桥KET语法：助动词 do 和 have

　　助动词本身没有任何意义，它们通常与实义动词的一定形式构成复合谓语，用来表示各种时态和语态，否定、疑问及加强语气等。常见的助动词有be、do、have。

　　1、do(does,did)

　　(1)“ do not+动词原形”构成行为动词的否定式，如：

　　I don't like playing the piano.

　　我不喜欢弹钢琴。

　　(2)“do+ 主语+动词原形”构成行为动词的一般疑问句，如：

　　Does he like the present?

　　他喜欢这份礼物吗?

　　(3)“do+ 动词原形”用在祈使句或陈述句中，加强语气，如：

　　I did eat the cake.

　　我确实吃了蛋糕。

　　Do clean up the room.

　　请一定要打扫这个房间。

　　(4)代替前面刚出现的动词，避免重复，如：

　　My mother told me to do the laundry.So I did.

　　我妈妈让我洗衣服，我也确实做了。

　　一You like classic music,don't you?你喜欢古典音乐，是吧?

　　一Yes,I do.是的，我喜欢。

　　(5)构成否定的祈使句，如：

　　Don't take photos in the museum.

　　不要在博物馆里照相。

　　2、have (has,had)

　　(1)“have+ 过去分词”构成完成时态，如：

　　I have already read the novel.

　　我已经读完这本小说了。

　　(2)“have been+ -ing” 构成完成进行时态，如：

　　I have been living here for ten years.

　　我已经在这儿住了十年了。

　　(3)与不定式(to do)构成谓语，表示“不得不”,如：

　　We have to leave right now.

　　我们现在得离开了。

　　3、单项选择：请从下列选项中选出正确的选项。

　　1.If it is fine tomorrow,we_________a basketball match.

　　A.will have B.will has C.have

　　2.I _________ already finished my homework.

　　A.has B.is C.have

　　3.I don't _________ playing the piano.

　　A.liked B.likes C.like

　　4. _________ he like the book?

　　A.Do B.Does C.have

　　5.Why _________ you come to my birthday party yesterday?

　　A.didn't B.don't C.doesn't

　　6. _________ you have a problem with that?

　　A.Do B.Does C.Have

　　7.The news _________ spread to almost every country of the world.

　　A.has B.are C,have

　　8.I _________ want to go shopping with her now.

　　A.didn't B.don't C.doesn't

　　9.We _________ going to have a talk this afternoon.

　　A.are B.is C.have

　　10.She doesn't _________ to go swimming with Lily.

　　A.wanting B.want C.wants

　　4、选出斜体部分中正确的单词。

　　1.I have/has already finished my homework.

　　2.The wall have/has fallen.

　　3.My sister doesn t/don't like to go to school.

　　4.Do/Does you like this gift?

　　5.Please don tdoesn t hesitate to ask me if you have any problem.

　　6.I don't/didn't realize how heavy that shopping was going to be.

　　7.She doldoes homework after school every day.

　　8.Have/Has you ever wondered about this question?

　　9.Since then,Tom has/have lived a normal life in this city.

　　10.Tom doesn't/don t like to go shopping with his girlfriend.

　　5、从方框中选择正确的单词填空。

　　have　　been　　do

　　does　　are　　is

　　1.It has _________ a long time since I saw you

　　2.I _________ left my suitcase in your house.

　　3. _________ you like shopping?

　　4. _________ you buy a new mobile phone yesterday?

　　5.Tom _________ many friends.

　　6.What _________ your mother do?

　　7._________this your pen?

　　8. There _________ many books on the shelf.