小学英语肯定变-否定句.ppt

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1、否定句否定句中and，some与any的用法情态动词can的否定Be动词的否定肯定变否定肯变否，soeasy，becan后加not；遇到and在句中，and变or别忘记1.Be动词的否定构成：be+not⑴Iamagirl.Iamagirl.not⑵Youareshort.Youareshort.not⑶Sheisugly.Sheisugly.not将下列句子改成否定句：1.Iamastudent.Iamnotastudent.Iamateacher.将下列句子改成否定句：1.Iamaboy.Iamnotaboy.Iamagirl.将下列

2、句子改成否定句：1.Heismyteacher.Heisnotmyteacher.将下列句子改成否定句：Theyaregoodstudentsinmyclass.Theyarenotgoodstudentsinmyclass.4.Mymother’sMissPanda.MymotherisMissPanda.MymotherisnotMrsWang.缩写：isn’t5.We’resad.Wearesad.Wearenotsad.6.Kitty’sbrother’sfive.Kitty’sbrotherisfive.Kitty’sbroth

3、erisnotfive.缩写：isn’tcan的用法can属于情态动词，一般表示’能’，can没有人称变化，不能单独使用，必须后跟动词原形。e.g.You/He/Icanhearthemusic.I/She/You/Hecandance.构成：Can句型的否定句：在can后加not,其余部分不变。cannot=can’te.g.Thebirdscanfly.Thebirdscannotfly.Marycandance.Marycan’tdance.2.情态动词can的否定PracticeIcanswim.Shecandance.Mymot

4、hercanhearwithherears.LucyandLindacanwalktoschool.MyDadcanseesomechildreninthegarden.PracticeIcannotswim.Shecannotdance.Mymothercannothearwithherears.LucyandLindacannotwalktoschool.MyDadcannotseesomechildreninthegarden.4.否定句中and，some与any的用法1.否定句中and要变为or2.否定句中some要变为anyHe

5、cansinganddance.Hecan’tsingordance.Hehassomebreadandjuice.Hedoesn’thaveanybreadorjuice.