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Unit6THereisabigbed.PartALet'slearnandtalk.Look!Thereisabedroom.看！有一个房间。computersofabookwindowbeddeskWhatcanyousee?Icansee.......Thereisa/an…..有一个……（单数）Thereare….有……（复数）Thereisacomputer.Therearesixbooks.新知：Therebe句型！Thereisaclock.clockThereisabike.bikeThereisawaterbottle.waterbottleThereisaplant.plantphotoThereisaphoto.Whatcanyousee?What'smissing?Thereis/are..........