肯定句变为否定句的方法一般疑问句的回答

课时七：肯定句变为否定句的方法一般疑问句的回答1）肯定句变为否定句的方法把肯定句改成否定句分以下情况：1、 句中有be动词的，在be动词后加not；2、 句中有情态动词的（can,should，must，would），在情态动词后面加not；3、 句中没有be动词和情态动词的，在动词前加don’t或doesn’t；句中动词为原形的，加don’t.如：Ilikeapples.3Idon,tlikeapples.句中动词为三单式的，加doesn’t，并将三单式的动词还原成原形。如:Helikesapples.^Hedoesn’tlikeapples.时态为过去时的?要加didn’t而且动词过去式要改为原形，例:Iwenttoschoolyesterday.fldidn’tgotoschoolyeaterday.肯定句中的some在否定句中应改为any如：Therearesomestudentsintheclassroom.»Therearenotanystudentsintheclassroom.2）一般疑问句的回答a)IsJimastudent?c)Doesshelikesalad?a)IsJimastudent?c)Doesshelikesalad?e)Isshereading?肯定回答：a)Yes,heis.shedoes.d)Yes,they否定回答：a)No,heisn’td)DotheywatchTV?b)Yes,youcan.c)Yes,do.e)Yes,sheis.b)No,youcan’t.c)No,shedoesn’t.d)No,theydon’t.e)No,sheisn’t.由Be动词来问，也由Be动词来回答be:amisareAmIateacher?IsheTom?AmIateacher?IsheTom?Issheyourfriend?Yes,heis. No,heisn't.Yes,sheis.No,sheisn't.

IsLucy8yearsold?Yes,sheis.No,sheisn't.Isthereabookonthedesk?Yes,thereis.No,thereisn'由助动词do,does,did,will提问，也用它们来回答Doyouhaveabook?Yes,Ihave.No,Ihaven't.Doeshehaveapen?Yes,hedoes.No,hedoesn't.Doesitliketosleep?Yes,itdoes.No,itdoesn't.Didyoulostyourway?Yes,Idid.No,Ididn't.Willhegotothezoo?Yes,hewill.No,heWon't.Willyougohome?Yes,Iwill.No,IWon't.情态动词，用can问，也用它来答Canyousing?Yes,Ican.No,Ican't.Canheswim?Yes,hecan.No,hecan't.特殊情况MustIgotoschool?Yes,youhaveto.No,youneedn't.课堂练习将下列各句改成否定句1、Tom’sbrotheriswalkinginthepark.2、Hisfatherisdrivingabus.3、 ThestudentsofClass5arecleaningtheclassroom.4、Theirdogisplayingintheroom.5、TomandMaryarefriends.6、 Thesebusesarenew.7、 Therearesomebooksinthebookcase.8、Thereisabananainthebox.9、I’mastudent.把下列句子改写为否定句、一般疑问句及肯定、否定回答1.HisfatherisanEnglishteacher.Thesecatsarecrying.Theycanswim. ImustdomyhomeworknowIlikereadingEnglish.Hissistergoestoschoolonfoot.HerbirthdayisonthetwentiethofNovember.Mrs.LiandKittyareinabigshop.Kittyiswearinghernewuniform.Mrs.LiandKittywatchTVatnight.Idomyhomeworkafterschool.课后练习把下列句子改写为否定句、一般疑问句及肯定、否定回答1.Theboydoessomehouseworkathome.2.WearefromChina.3.Jimhassomebooks.4.IhavemanybooksaboutEnglish.MyauntoftenwatchesTV.Thereare5studentsintheclassroom.Myparentscanplaytennis.Theyaremygrandparents.Heiswateringtheflowersinthepark.GinawantsacupofcoffeeAreyouastudent? Areyoustudents? Isthatapencil?Isthisape