Unit7TallBuildingsPartBLet’sreview序数词Let’slearnA:Whichfloordoyouliveon?B:Iliveonthetwelfthfloor.A:Whichfloordoesheliveon?B:Helivesonthefifteenthfloor.A:Whichfloordoyouliveon?B:Iliveontheninthfloor.A:Whichfloordoessheliveon?B:Shelivesonthethirtiethfloor.GrammarWhich引导的选择疑问句:表示哪一个,在一定范围内进行选择。如:Whichcolordoyoulike?Whichbookdoyoulike?Let’sdoA:Whichfloordoesheliveon?B:Helivesonthe____floor.twenty-thirdA:Whichfloordoessheliveon?B:Shelivesonthe____floor.twelfthA:Whichseasondoyoulikebest?B:Ilike____best.autumnA:____girlisyoursister?B:Thegirlunderthetree.WhichA:____fruitdoyoulike?B:Ilikegrapesbest.WhichA:____countrydoyoulikebest?B:IlikeChina.WhichLet’stalk同桌间就图片信息做对话。Which……Thankyou