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1、Section A (2a-3c)Section A (2a-3c)任务:补全对话。A:Hello.1.B:ThisisMikespeaking.A:Hi,Mike.ThisisJack.Areyougoingtotheschoolpartytomorrow?B:Yes,Iam.2.A:SoamI.IwillbringmycousinDave.Hearrivedyesterday.B:3.A:WhatwillhappenifIdo?B:IfyoubringDave,theteacherwillaskhimtoleave.4.A:Whatapity!B:5.IfyoudonthaveyourID
2、card,youcantgototheparty.A:Thankyouforreminding(提醒)me.Seeyoutomorrow.B:Seeyou.BEADCA.Youcantdothat.B.MayIspeaktoMike?C.DontforgettotakeyourIDcard.D.Becauseheisntastudentfromourschool.E.Whataboutyou?If we have it today,half the class wont come.如果我们今天开(聚会)的话,一半的学生不会来。剖析(1)“half+the+n.”中的half为形容词,意为“一半
3、的,半个的”。如:Halftheguestsarewomen.一半的客人是女士。(2)“halfof+代词/the+n.”中的half为名词,意为“一半,半个”。该短语在句中做主语时,谓语动词与halfof后面的名词的数保持一致,即当代词或名词为单数时,谓语动词用第三人称单数形式;当代词或名词为复数时,谓语动词用复数形式。如:Halfofthestudentsareplayingsoccerontheplayground.一半的学生正在操场上踢足球。Halfofthecheeseisintherefrigerator.一半的奶酪在冰箱里。拓展half表示“半数”,all表示“全部”,none表示“没有”。