1、Unit 3 Couldyoupleasecleanyourroom?Section A (1a-2d)Teachinggoals:Knowledgegoals:1.Keyphrases:dothedishes,sweepthefloor,takeouttherubbish,makethebed,foldtheclothes,cleanthelivingroom2.Keysentences:1)---Couldyoupleasedosth.?请你(做)……好吗?---Yes,sure./Allright./OK./Noprobl