小学英语语法句型转换-陈述句变否定句（全国通用版）

陈述句的肯定变否定ChangeAffirmativeSentenceintoNegativeSentence3.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STEP1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？Inotastudent.Shegoesnottoschool.Wenotcanplaybasketball.我不学生我们会不打篮球这些句子的感觉就像我们听老外说：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notSTEP2肯定句变否定句be动词amisare现在时过去式waswere一在be动词后加not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。HeisWangYibo.HeisnotQianxi.Wearehisfans.Wearenothisfans.Hewasnotactor.一.在

be动词后加not,注意缩写形式

amnotisnot=isn'tarenot=aren't

wasnot=wasn'twerenot=weren't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。I’mnot

Jialing.She

isn't

Bai.She'snot

thin.She

isn'tasinger.Herhair

isn'tshort.一在情态动词后加not二1.这个男孩会游泳。2.他不能去海里游泳。3.他不应该游泳。Theboycanswim.Hecannotswiminthesea.Heshouldnotswim.二.在

情态动词后加not,注意缩写形式

(可以，能够，会）（将会，将要）（应该）

cannot=can'twillnot=won'tshallnot=shan't(口语中)

couldnot=couldn'twouldnot=wouldn'tshouldnot=shouldn't

must(必须)-----mustn't(禁止)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。Hecan'tplayfootball.Theywon'tmeeteachother.一在助动词后加not三先来了解：谓语动词

&助动词

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）什么情况下需要请“助动词”？1.否定句2.疑问句以上两者句型中，没有“be动词”和“情态动词”，我们就需要“助动词”三.在

助动词后加not,注意缩写形式

donot=don'tdoesnot=doesn'tdidnot=didn'tdo--------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）谓语动词注意：have系列的助动词只出现在“完成时态”：have---has---had一1.他们想上学。Theywanttogotoschool.Theydonotwanttogotoschool.否定2.辛普森喜欢看电视。SimpsonlikeswatchingTV.Simpsondoesn'tlikewatchingTV.3.他们昨天打扫了房间。Theycleanedtheroomyesterday.否定Theydidn'tcleantheroomyesterday.否定句型练习:把下列肯定句改成否定句1.Ifinishedmyhomework.2.Heasksmeaquestion.3.Wecleanedtheclassroom.4.Thecatbitesme.5.Theygotoschoolbybus.6.Itworks.7.LilyandLucyhavealotofmoney.8.Jackholdsagirl.9.IwenttoBeijinglastyear.1.Ididn'tfinishmyhomework.2.Hedoesn'taskmeaquestion.3.Wedidn'tcleantheclassroom.4.Thecatdoesn'tbiteme.5.Theydon'tgotoschoolbybus.6.Itdoesn'twork.7.LilyandLucydon'thave...8.Jackdoesn'tholdagirl.9.Ididn'tgotoBeijinglastyear.STEP3否定句变肯定句否定句改成肯定句，去掉not就可以了~I‘mnotadoctor.Lucyisn'tathome.Bobcan'tplaythepiano.Weshouldn'twatchTVallday.Shedoesn'twantajob.Wedidn'tdohomeworkyesterday.Idon'tspeakJanpanese.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）。didSTEP4总结练习一.在

be动词后加notamnotisnot=isn'tarenot=aren'twasnot=wasn'twerenot=weren't二．在情态动词后加ｎｏｔ

(可以，能够，会）（将会，将要）（应该）

cannot=can'twillnot=won'tshouldnot=shouldn't

couldnot=couldn'twouldnot=wouldn'tmust(必须)-----mustn't(禁止)三.在助动词后加not

donot=don'tdoesnot=doesn'tdidnot=didn't肯定陈述句变否定句练习一：把下列肯定句改成否定句1.Wearegladtohearthat.2.Shelikesmydress.3.Everyonewantstobefriendswithhim.4.Theboyistall.5.Icanswimanddance.6.Youshouldtakecareofyourfamily.7.Myteachervisitedtheoldladyyesterday.8.Wewillhelpyou.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