Unit3LanguageinuseLanguagepracticeGivethemmorepersonalspace.Wavetosaygoodbye.Becareful!Don’tstandtooclosetoNorthAmericans.一、定义：祈使句用来表达叮嘱、劝告、希望、禁止、警告、请求或命令等。祈使句最常用来表达命令,因此又叫做命令句。Goandwashyourhands.快去洗手。（命令）Bequiet,please.请安静。（请求）Don’tforgettotakeanumbrella.不要忘了带雨伞。（叮嘱）二、祈使句的特点：◇祈使句一般没有主语，说话的对象都是第二人称“你”或“你们”，所以也可以理解为省略了主语you。◇在表达请求时，可以加上please；表达比较强烈的语气时，可以用感叹号。eg:Pleaseclosethedoor.请把门关上。Sitdown,please.请坐。三、祈使句的结构：◇肯定形式：以动词原形开头，无时态和数的变化。Stop!停！Hurryup!快点！Pleasedon’tdoit.请不要这么做。◇否定形式：1、祈使句的否定形式是在动词原形前加don’t。Don’tbelateagain.不要再迟到了。1.Workinpairs.Talkaboutdo’sanddon’tsinaforeigncountry.BritainDo’s•Standinline.•Shakehands.•Say‘please’and‘thankyou’.•Opendoorsforothers.•Lookatpeoplewhenyoutalk.•Beontime.BritainDon’ts•Touchpeople.•Askawoman’sage.•Standtooclose.•Sayanythingtoopersonal.2.Makealistofdo’sanddon’tstohelpvisitorstoBritain.•Standinline.•Don’ttouchpeoplewhenyoutalktothem.•…Shakehandswhenyoumeetafriend.Standinline..Pleasetalkabouttheweather.Say“please”and“thankyou”.LookatpeoplewhenyoutalkDon’ttouchpeople.Don’taskpeoplepersonalquestion.Don’taskwomen’sage.Don’ttalkwithfoodinyourmouth.Don’tbelate.3.Rewritethesentences.Eg.It’simportanttolistentotheteacher.Listentotheteacher.Youcannotshoutintheclassroom.Don’tshoutintheclassroom.1.It’simportanttobecareful.2.It’simportanttocleanandtidythelab.3.Youcannottouchanythingiftheteacherdoesn’taskyouto.4.Youcannotbringfoodordrinkintothelab.5.Youcannotenterthelabalone.Becareful.Cleanandtidythelab.Don’ttouchanythingiftheteacherdoesn’taskyouto.Don’tbringfoodordrinkintothelab.Don’tenterthelabalone.4.Answerthequestions.Usethewordsandexpressionsfromtheboxtohelpyou.allrightarminarmclosedifferentholdontokissthreetimespointatshakehandswithwave1.HowdotheBritishsayhellotoeachotherwhentheyfirstmeet?2.Doesbodylanguagemeanthesamethingindifferentcountries?Theyshakehandswitheachother.No,itdoesn’t.3.HowdotheRussianssayhellotoeachotherwhentheymeet?4.IsitpolitetostandclosetoNorthAmericans?5.IsitallrighttowavegoodbyeinGreece?6.Howdoyouusuallysaygoodbyewithbodylanguage?Theyusuallykissthreetimes.No,itisn’t.No,itisn’t.Iwavemyhand.AroundthewrldTheJapanesebowInJapan,peoplebowtosay“thankyou”,“sorry”,“hello”“，goodbye”,“you’rewelcome”“，excuseme”,andmanyotherthings.Childrenandyoungpeoplebowlowerwhentheygreetolderpeople.It’sawayofbeingpoliteandshowingrespect.1.______thiskindofpeach,andyouwilllikeit.A.TotryB.TryingC.TryD.Tried2.__________,oryou’llbelate.A.HurryupB.TakeitdownC.TohurryupD.Hurriesup3.Ssh!________talkloudly.Thebabyissleepingrightnow.A.DoB.DoesC.Don’tD.Doesn’t一、选择题√√√4.“_______exerciseeveryday,mychild.It’sgoodforyourhealth,”Fathersaid.A.TakingB.TotakeC.TakeD.Takes5.Don’t_______toomuchTV.It’sbadforyoureyes.A.watchB.watchedC.watchingD.towatch6.________sleeptoolate.It’sbadforyourhealth.A.DoB.NotC.Don’tD.Pleasenot√√√二、用括号内所给动词的恰当形式填空。1.It’sanimportantmeeting._________(not,be)late.2.___________(not,make)anynoise!Yourmotherissleeping.3.__________(not,speak)withyourmouthfulloffood.4._________(not,talk)and_______(read)aloud.Don’tbeDon’tmakeDon’tspeakDon’ttalkread5.___________(not,leave)yourhomeworkfortomorrow,Larry.6._______(look)out!Acariscoming.7._______(give)ustenyearsandjustseewhatourcountrywillbelike.8._________(not,let)thebabycry.Don’tleaveLookGiveDon’tlet三、翻译下列各句。1.咱们一起玩吧！2.请不要迟到。3.回答这个问题。4.不要这么吵。5.上课安静。6.不要随处乱扔垃圾。7.友好待人。Let’splaytogether.Don’tbelate,please.Answerthequestion.Don’tmakesuchanoise.Bequietonclass.Don’tthrowlittereverywhere.Befriendlytoclassmates.Writetenshortimperatives.Youcanusedo’sanddon’ts.
