英语句型转换 肯定句变否定句课件.ppt

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1、一招搞定句型转换MsLiao2018.09.16启明英语1.Igetupat7o’clock._____________________________2.Mikeisgoodatbasketball._____________________________3.Tomwantsacat._____________________________4.TheywillgototheGreatWall._____________________________课首小测将下列句子改为否定句:判断：肯定句or否定句Iamadoctor.2.Iamnotadoctor.3.Hegoes

2、toschoolbybike.4.Hedoesnotgotoschoolbybike.(肯)(肯)(否)(否)秘诀有be用be，有情用情，无情无be用助启明英语not何处安放？助？be？情？be动词有三种形式，他们分别是：isamarebe动词can(可以，能够)will(将要)should(应该)情态动词助动词do（原形）does（三单）did(过去式）否定形式:don’t否定形式:doesn’t否定形式:didn’t1)Iamastudent.2)Theyareblue.3)Itisadog.1.句子中有be，在be后加not。缩写形式：isnot=isn’tarenot

3、=aren’tamnot不能缩写Iamnotastudent.Theyarenotblue.Itisnotadog.将下列句子改为否定句:1.Itisatiger.Itisnotatiger.2.Youareshort.Youarenotshort.Youcanpickapples.Itwillrain.Ishoulddrive.2.句子中有情态动词，在情态动词后加not。Youcannotpickapples.缩写形式：cannot=can’twillnot=won’tshouldnot=shouldn’tItwillnotrain.Ishouldnotdrive.将下列句

4、子改为否定句:LilyandTomwillwalktoschool.LilyandTomwillnotwalktoschool.如果原句子没有be动词也没有情态动词，怎么办？注意：助动词后的动词要打回原形。Hedoesn’tswimeveryday.①Ilikeautumn.Idon’tlikeautumn.②Heswimseveryday.打回原形第三人称单数，主语后+doesn’t3.句子中无情无be，用助动词。动词原形，主语后+don’tHehasashirt.____________________2.Theyhelpeachother._______________

5、_____________Hedoesn’thaveashirt.Theydon’thelpeachother.将下列句子改为否定句:ExerciseNow,youtry!1.Igetupat7o’clock._____________________________2.Mikeisgoodatbasketball._____________________________3.Tomwantsacat._____________________________4.TheywillgototheGreatWall._____________________________Ido

6、n’tgetupat7o’clock.Mikeisnotgoodatbasketball.Tomdoesn’twantacat.TheywillnotgototheGreatWall.谢谢观赏Thankyouforlistening!Seeyounexttime.ByQimingEnglish