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1、Unit3Warm-up&Listening&Speaking&VocabularyLesson8toothbrushtrousersapairoftrousersatoothbrushcrayondiaryacrayonadiaryglasseskeyapairofglassesakeyscissorstowelapairofscissorsatowelapairofapairof一双，一对，一副apairof后所接名词主要有以下特点：1.由两部分构成的单件事物，如trousers(裤子),scissors(
2、剪刀),glasses(眼镜),spectacles(一副眼镜),jeans(牛仔裤)等。如：Icutthepaperwithapairofscissors.我用剪刀剪纸。Twopairsofyourtrousersarestillatthecleaner’s.你的两条裤子还在洗衣店里。对于这类由两部分构成的单件事物，我们不能用one或ones来替代它，而用pair或pairs。如：这些裤子我穿太紧了，你有宽一点的吗?误:Thesetrousersaretootightforme.Doyouhavealarge
3、rone?正:Thesetrousersaretootightforme.Doyouhavealargerpair?2.包括两件东西并且习惯上一起使用的名词,如shoes(鞋子),boots(靴子),gloves(手套),socks(袜子),earrings(耳环),chopsticks(筷子)等。如：Apairofglovesisanicepresent.一付手套是一件很好的礼物。Goandbuyyourselfanewpairofshoes.去给自己买双新鞋吧。Iwanttobuyahatandapairo
4、fboots,amongotherthings.除别的东西之外，我还想买顶帽子和一双皮靴。3.表示身体中两个相同的部位。如：Shehasahugepairofeyes.她长有一双大眼睛。Lookatherbeautifulpairoflegs.你瞧她那又美丽的腿。4.表示一般意义的“两个”,“一对”等。如：Onthewallwereapairofheartsinterlocked.墙上有一个同心结。Apairofthieveswereconspiringtorobus.有两个贼预谋盗窃我们的东西。Listent
5、othekeywordsanddiscuss:Whichofthesethingsdoyouhave?crayon,diary,glasses,key,scissors,toothbrush,towel,trousersLookatthekeywordsandlabeltheitems.crayon,diary,glasses,key,scissors,toothbrush,towel,trousersa.__________b._________c._________d._______scissorstowe
6、lcrayondiarye.__________f._________g._________h._________glasseskeytoothbrushtrousersListentothedialogueanddiscuss:WhatthingsdoesBen’smumtakeoutofthebox?Aball,shoes,adiary,crayons,scissors,keys,glasses.Listenagainandmatchthepeoplewiththethings.WriteBforBen,L
7、forLinda,etc.B=BenL=LindaM=MumD=DadBall________Diary_______Crayons________Shoes__________Scissors________Keys___________Glasses_________BLLBDDMTalkabouttheitemsinExercise2.Thenaskandanswerinpairs.A:Whoseballisthis?B:It’sBen’sball.Theshoesarehis,too.A:Whosedi
8、aryisthis?B:It’sLinda’sdiary.Thecrayonsareher,too.A:Whosescissorsarethese?B:Thesearemum’sscissors.Thekeysareher,too.A:Whose…is/arethis/these?B:This/Theseis/are…’s….The…is/are…,too.A:Whose…is/are
