牛津英语课件老版grammar 4.pptx

24AmazingthingsNumbersGrammar(IV):Imperatives

IntroductionPositiveandnegativeimperativesExercises

Introduction2-1Add3and9.Divide9by3.areimperatives.Weuseimperativestogiveinstructions,ordersoradvice.Generally,weuseimperativesonlywithpeoplethesameageasusoryounger.Washtheclothesinwarmwater.Bequiet,Ben.Havesomeicecream,please.12

2-2Wedonotuseimperativeswhenspeakingtopeopleolderthanusexceptinthefollowingsituations:emergencies

‘I’mbleeding!Callanambulance!’cheering

‘GoDad!Makeagoal!’somerequests

‘Mum,helpme,please.’12

PositiveandnegativeimperativesPositiveimperativesGivemeyourhomework,Ben.Pleaseturnoffyourmobilephones.Bequiet,girls!Therearepositiveandnegativeimperatives.NegativeimperativesDonotturnonyourmobilephones.Don’tcopyJane’swork,Sally.Pleasedon’tbelateagain!122-1

Usethebaseformofverbsinpositiveimperatives.Adddon’tbeforethebaseformofverbsinnegativeimperatives,

e.g.,Give/Don’tgivemeyourhomework,Ben.Wemayaddpleasebeforethebaseformofverbs,

e.g.,Pleaseturnoff/don’tturnoffyourmobilephones.Weneedtoaddbebeforeadjectiveswhenweusethemasimperatives,

e.g.,Be/Don’tbequiet,girls!Tips122-2

6-1ExercisesALookattheexamplesentencesinthetableagain.Whichonesarepolite?123456PositiveimperativesGivemeyourhomework,Ben.Pleaseturnoffyourmobilephones.Bequiet,girls!NegativeimperativesDonotturnonyourmobilephones.Don’tcopyJane’swork,Sally.Pleasedon’tbelateagain!

BWhatdoestheteachersay?Makesentences

withthewordsorphrasesinthebox.SomeofthesentencesmustbeginwithDon’t.6-2123456turntosleepspeaklouderbringeatclose1Beniseatinginclass.2Amyhasleftthedooropenonacoldday.________________________________________________________________________________Don’teatinclass,Ben.Pleaseclosethedoor,Amy.

6-3123456turntosleepspeaklouderbringeatclose3Sueisansweri