小学英语语法：把肯定句改成否定句

专题:把肯定句改成否定句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；①句中动词为原形的，加don’t.如：Ilikeapples.Idon’tlikeapples.②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.③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.→Ididn’tgotoschoolyeaterday.4.肯定句中的some在否定句中应改为any如：Therearesomestudentsintheclassroom.Therearenotanystudentsintheclassroom.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.______________________________________________________10、Sheisafarmer.______________________________________________________11、Yourfathercanrideabike.______________________________________________________12、Mr.Licandrawpictures.______________________________________________________13、Theycanplayfootballafterschool.______________________________________________________14、IcangotoShanghaiZoo.______________________________________________________15、Youshouldclimbthetree.______________________________________________________16、WecomefromChina.______________________________________________________17、It’stimeforsports.______________________________________________________18、Welikethemask.______________________________________________________19、Helikestheviolin.______________________________________________________20、Havesomebread,Tom.______________________________________________________21、Pleaseopenyourbooks.______________________________________________________22、IlikeChinese、Maths、ArtandPE.______________________________________________________23、Listentotheradio,please.______________________________________________________24、Kicktheballtome.______________________________________________________25、Peter,drinksomejuice,please.______________________________________________________26、PleasewatchTV.______________________________________________________27、Iamabusdriver.______________________________________________________28、Thedogcanjump.______________________________________________________29、TodayisMonday.______________________________________________________30、Theyaregoodfriends.肯定句改成否定句