2021中考英语复习： 肯定和否定陈述句句型转换ppt课件.pptx

1、Change Affirmative Sentence into Negative Sentence主讲人：Ivy3.否定句变肯定句目 录/contents2.肯定句变否定句1.了解否定词及其位置4.总结练习STEP 1了解否定词及其位置请大家思考下，中文里的否定词是什么？1.我没吃早餐。2.今天不想去打球。3.我们都不会开车。4.这本书不好看。5.那家餐馆的菜没那么好吃。6.他没有兄弟姐妹。不；没那么，英文里的否定词是什么呢？不；没not你是否一直随心所欲的加not呢？I not a student.She goes not to school.We not can play basketb

2、all.我不学生她去不学校我们会不打篮球否定词 not 应该放在什么位置呢？一.be动词后加 not二.情态动词后加 not三.助动词后加 notSTEP 2肯定句变否定句be 动词am isare现在时过去式waswere一1.他是王一博。2.他不是易烊千玺。3.我们是他的粉丝。4.我们不是他的粉丝。5.他以前不是演员。He is Wang Yibo.He is not Qianxi.We are his fans.We are not his fans.He was not actor.am not is not=isnt are not=arent was not=wasnt were

3、not=werent 句型练习句型练习1.我不是贾玲。2.她不是白素贞。3.她不是歌手。4.她长得不瘦。5.她的头发不短。Im not Jialing.She isnt Bai.Shes not thin.She isnt singer.Her hair isnt short.一1.这个男孩会游泳。2.他不能去海里游泳。3.他不应该游泳。The boy can swim.He can not swim in the sea.He should not swim.(可以，能够，会）（将会，将要）（应该）can not=cant will not=wont shall not=shant (口语中

4、)could not=couldnt would not=wouldnt should not=shouldnt must(必须)-mustnt(禁止)句型练习句型练习1.他不会踢足球。2.他不应该来这。3.他们以后再也不会见面了。He cant play football.He shouldnt come here.They wont meet each other.一姓名职位工作职责谓语动词句子中的“领导、核心”负责主语的动作助动词助理协助谓语动词I（主语:动作的发出者）wash（谓语：主语所发出的动作）clothes（宾语：动作的承受者）1.否定句 2.疑问句以上两者句型中，没有“be动

5、词”和“情态动词”，我们就需要“助动词”do not=dont does not=doesnt did not=didnt do-帮助 动词原形 does-帮助 动词单三（V+s/es）did-帮助 动词过去式（V+ed）一1.他们想上学。They want to go to school.They do not want to go to school.否定2.辛普森喜欢看电视。Simpson likes watching TV.Simpson doesnt like watching TV.3.他们昨天打扫了房间。They cleaned the room yesterday.否定They

6、 didnt clean the room yesterday.否定句型练习句型练习:把下列肯定句改成否定句把下列肯定句改成否定句1.I finished my homework.2.He asks me a question.3.We cleaned the classroom.4.The cat bites me.5.They go to school by bus.6.It works.7.Lily and Lucy have a lot of money.8.Jack holds a girl.9.I went to Beijing last year.1.I didnt finish

7、 my homework.2.He doesnt ask me a question.3.We didnt clean the classroom.4.The cat doesnt bite me.5.They dont go to school by bus.6.It doesnt work.7.Lily and Lucy dont have.8.Jack doesnt hold a girl.9.I didnt go to Beijing last year.STEP 3否定句变肯定句Im not a doctor.Lucy isnt at home.Bob cant play the p

8、iano.We shouldnt watch TV all day.She doesnt want a job.We didnt do homework yesterday.I dont speak Janpanese.wants注意：助动词是我们把它请出来帮助谓语动词的，所以还原肯定句要去掉助动词，谓语动词要变成相应的形式（原形、单三、过去式）。didSTEP 4总结练习一.在 be 动词后加 not am not is not=isnt are not=arent was not=wasnt were not=werent 二在情态动词后加 (可以，能够，会）（将会，将要）（应该）can

9、not=cant will not=wont should not=shouldnt could not=couldnt would not=wouldnt must(必须)-mustnt(禁止)三.在助动词后加not do not=dont does not=doesnt did not=didnt练习一：把下列练习一：把下列肯定句改成否定句肯定句改成否定句1.We are glad to hear that.2.She likes my dress.3.Everyone wants to be friends with him.4.The boy is tall.5.I can swim

10、and dance.6.You should take care of your family.7.My teacher visited the old lady yesterday.8.We will help you.练习二：把下列练习二：把下列否定句改成肯定句否定句改成肯定句1.I dont know your name.2.We werent born in Changsha.3.Mr.Lee isnt our teacher.4.She didnt do her homework.5.Kevin doesnt stay with us.6.She couldnt ask you.7.

11、We wont come here again.8.He doesnt like the book.练习三：翻译下列句子。练习三：翻译下列句子。1.我每天去公园。2.他不想听音乐。3.我们看了一部电影。4.她不会骑自行车。5.你不应该呆在这儿。6.她昨天晚上没回家。注意：注意：1.1.助动词助动词dodo系列的否定句改成肯定句时，要去掉助动词系列的否定句改成肯定句时，要去掉助动词和和 notnot，谓语动词变成相应的时态。，谓语动词变成相应的时态。2.2.助动词助动词havehave系列只出现在完成时态，且系列只出现在完成时态，且 have+donehave+done构构成完成时态，所以否改肯定句时，只需要去掉成完成时态，所以否改肯定句时，只需要去掉 notnot：I I have not watched have not watched the movie.the movie.（否定句）（否定句）I I have watched have watched the movie.the movie.（肯定句）（肯定句）