肯定句改否定句讲解及练习+.doc

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1、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,could,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,doesn’t或didn’t；①句中动词为原形的，加don’t.如：Ilikeapples.àIdon’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.àHedoesn’tlike

2、apples.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’tgotoschoolyesterday.4.肯定句中的some在否定句中应改为any如：Therearesomestudentsintheclassroom.àTherearenotanystudentsintheclassroom.将下列各句改成否定句1、Tom’sbrotheriswalkinginthepark.___________________________

3、___________________________2、  Hisfatherisdrivingabus.______________________________________________________3、 ThestudentsofClass5arecleaningtheclassroom.______________________________________________________4、 Theirdogisplayingintheroom.___________________

4、___________________________________5、 TomandMaryarefriends.______________________________________________________6、  Thesebusesarenew.______________________________________________________7、   Therearesomebooksinthebookcase._________________________________

5、_____________________8、   Thereisabananainthebox.______________________________________________________9、   I’mastudent.______________________________________________________10、   Sheisafarmer.______________________________________________________11、   Your

6、fathercanrideabike.______________________________________________________12、   Mr.Licandrawpictures.______________________________________________________13、   Theycanplayfootballafterschool.______________________________________________________14、   Icango

7、toShanghaiZoo.______________________________________________________15、   Youshouldclimbthetree.______________________________________________________16、   WecomefromChina.______________________________________________________17、   It’stimeforsports._______

8、_______________________________________________18、  Welikethemask.______________________________________________________19、  Heplayedtheviolinlastnight._________________________________________________