陳述句的肯定變否定ChangeAffirmativeSentenceintoNegativeSentence3.否定句變肯定句目錄/contents2.肯定句變否定句1.了解否定詞及其位置4.總結(jié)練習(xí)STEP1了解否定詞及其位置請(qǐng)大家思考下，中文里的否定詞是什么？1.我沒(méi)吃早餐。2.今天不想去打球。3.我們都不會(huì)開(kāi)車(chē)。4.這本書(shū)不好看。5.那家餐館的菜沒(méi)那么好吃。6.他沒(méi)有兄弟姐妹。不；沒(méi)那么，英文里的否定詞是什么呢？不；沒(méi)not你是否一直隨心所欲的加not呢？Inotastudent.Shegoesnottoschool.Wenotcanplaybasketball.我不學(xué)生我們會(huì)不打籃球這些句子的感覺(jué)就像我們聽(tīng)老外說(shuō)：否定詞not應(yīng)該放在什么位置呢？一.be動(dòng)詞后加not二.情態(tài)動(dòng)詞后加not三.助動(dòng)詞后加notSTEP2肯定句變否定句be動(dòng)詞amisare現(xiàn)在時(shí)過(guò)去式waswere一在be動(dòng)詞后加not一1.他是王一博。2.他不是易烊千璽。3.我們是他的粉絲。4.我們不是他的粉絲。5.他以前不是演員。HeisWangYibo.HeisnotQianxi.Wearehisfans.Wearenothisfans.Hewasnotactor.一.在

be動(dòng)詞后加not,注意縮寫(xiě)形式

amnotisnot=isn'tarenot=aren't

wasnot=wasn'twerenot=weren't句型練習(xí)1.我不是賈玲。2.她不是白素貞。3.她不是歌手。4.她長(zhǎng)得不瘦。5.她的頭發(fā)不短。I’mnot

Jialing.She

isn't

Bai.She'snot

thin.She

isn'tasinger.Herhair

isn'tshort.一在情態(tài)動(dòng)詞后加not二1.這個(gè)男孩會(huì)游泳。2.他不能去海里游泳。3.他不應(yīng)該游泳。Theboycanswim.Hecannotswiminthesea.Heshouldnotswim.二.在

情態(tài)動(dòng)詞后加not,注意縮寫(xiě)形式

(可以，能夠，會(huì)）（將會(huì)，將要）（應(yīng)該）

cannot=can'twillnot=won'tshallnot=shan't(口語(yǔ)中)

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

must(必須)-----mustn't(禁止)句型練習(xí)1.他不會(huì)踢足球。2.他不應(yīng)該來(lái)這。3.他們以后再也不會(huì)見(jiàn)面了。Hecan'tplayfootball.Theywon'tmeeteachother.一在助動(dòng)詞后加not三先來(lái)了解：謂語(yǔ)動(dòng)詞

&助動(dòng)詞

姓名職位工作職責(zé)謂語(yǔ)動(dòng)詞句子中的“領(lǐng)導(dǎo)、核心”負(fù)責(zé)主語(yǔ)的動(dòng)作助動(dòng)詞助理協(xié)助謂語(yǔ)動(dòng)詞I（主語(yǔ):動(dòng)作的發(fā)出者）wash（謂語(yǔ)：主語(yǔ)所發(fā)出的動(dòng)作）clothes（賓語(yǔ)：動(dòng)作的承受者）什么情況下需要請(qǐng)“助動(dòng)詞”？1.否定句2.疑問(wèn)句以上兩者句型中，沒(méi)有“be動(dòng)詞”和“情態(tài)動(dòng)詞”，我們就需要“助動(dòng)詞”三.在

助動(dòng)詞后加not,注意縮寫(xiě)形式

donot=don'tdoesnot=doesn'tdidnot=didn'tdo--------幫助動(dòng)詞原形

does------幫助動(dòng)詞單三（V+s/es）

did--------幫助動(dòng)詞過(guò)去式（V+ed）謂語(yǔ)動(dòng)詞注意：have系列的助動(dòng)詞只出現(xiàn)在“完成時(shí)態(tài)”：have---has---had一1.他們想上學(xué)。Theywanttogotoschool.Theydonotwanttogotoschool.否定2.辛普森喜歡看電視。SimpsonlikeswatchingTV.Simpsondoesn'tlikewatchingTV.3.他們昨天打掃了房間。Theycleanedtheroomyesterday.否定Theydidn'tcleantheroomyesterday.否定句型練習(xí):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否定句變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：助動(dòng)詞是我們把它請(qǐng)出來(lái)幫助謂語(yǔ)動(dòng)詞的，所以還原肯定句要去掉助動(dòng)詞，謂語(yǔ)動(dòng)詞要變成相應(yīng)的形式（原形、單三、過(guò)去式）。didSTEP4總結(jié)練習(xí)一.在

be動(dòng)詞后加notamnotisnot=isn'tarenot=aren'twasnot=wasn'twerenot=weren't二．在情態(tài)動(dòng)詞后加ｎｏｔ

(可以，能夠，會(huì)）（將會(huì)，將要）（應(yīng)該）

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

couldnot=couldn'twouldnot=wouldn'tmust(必須)-----mustn't(禁止)三.在助動(dòng)詞后加not

donot=don'tdoesnot=doesn'tdidnot=didn't肯定陳述句變否定句練習(xí)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.練習(xí)三：翻譯下列句子。1.我每天去公園。2.他不想聽(tīng)音樂(lè)。3.我們看了一部電影。4.她不會(huì)騎自行車(chē)。5.你不應(yīng)該呆在這兒。6.她