小学英语否定句.ppt

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1、小学英语否定句肯定句改写否定句第一类：含有is, am, are的句子，直接在is, am, are后面加not,主语+ be（am is are）+ not①I am not= I’m not②is not=isn’t③are not=aren’t例如：①I am Jack. ---- I am not Jack.-----I’m not Jack.②She is a doctor. ---- She is not a doctor.③It is a sunny day. ---- It is not a sunny day.第二类：

2、含can的情态动词的句子,在can后面直接加not，can not= can’t例如：①The bird can fly. ---The bird cannot fly.②I can dance. ------ I can not dance.第三类：含实意动词的句子变否定句，在do或does后面加not主语+ do（does）not +动词原形例如：①I get up at 7:00 every morning.---- I don’t get up at 7:00 every morning.②Grandma often goes 

3、to the park in the morning.---- Grandma doesn’t often go to the park in the morning.③Ihavemanybooks.---Idon’thavemanybooks.④Hehasapencil.---Hedoesn’thaveapencil.第四类：祈使句改为否定句，在动词前加donot/don’t,如：①Openthedoor,please.---Don’topenthedoor,please.②Pleasecometomyhomeonfoot.---Pl

4、easedon’tcometomyhomeonfoot.特殊：Letme/us+动词原形+……改为否定句，在动词前加not即可。如：①Letmeclosethedoor.---Letmenotclosethedoor.②Letusgototheparkthisafternoon.---Letusnotgototheparkthisafternoon.第五类：有情态动词的句子，直接在动词后加not即可，有some改为any，如：HecanspeakEnglish.---HecannotspeakEnglish.练习及巩固1.MissGre

5、enisagoodteacher.MissGreenisn't/isnotagoodteacher.2.Thestudent’snameisLiWei.Thestudent’snameisn't/isnotLiWei.3.Thestoryissointeresting.Thestoryisn't/isnotsointeresting.4.WeareallfromChina.Wearen't/arenotallfromChina.5.Theboyintheroomismybrother.Theboyintheroomisn‘t/isnot

6、mybrother.6.Thereisanappleinthegirl’shand.Thereisn't/isnotanappleinthegirl’shand.7.Therearefiveboxesinthepicture.Therearen't/arenotfiveboxesinthepicture.8.Thereissometeainthecup.Thereisn't/isnotsometeainthecup.9.TherearesomeAmericaninthecity.Therearen't/arenotsomeAmerica

7、ninthecity.10.Therearetwopensandapencilinthepencil–box.Therearen't/arenottwopensandapencilinthepencil–box.11.LinglingcanspeakgoodEnglish.Linglingcan’t/cannotspeakgoodEnglish.12.Thestudentscanplayfootballafterschool.Thestudentscan’t/cannotplayfootballafterschool.13.Ourtea

8、cherMr.Zhangcanplayping-pong.OurteacherMr.Zhangcan’t/cannotplayping-pong.14.IcanhelpyouwithyourEnglish.