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Unit1MyschoolThisismyschool——Sishiprimaryschoolteacherteachers’officeateachers’officemusicmusicroomamusicroomThereisamusicroom.artartroomThereisanartroom.anartroomplaygroundThereisaplayground.aplaygroundlireadingkebraryThereisalibrary.alibrarygymThereisagym.agymexercisingallchThereisahall.ahallclassroomTherearetwoclassrooms.aclassroomtwoclassroomsmusicroomartroomclassroomclassroomclassroomclassroomclassroomTeachers’officehallplaygroundlibrarygymThisismyschool.There’sahall,agym,ateachers’office,alibrary,anartroomandamusicroom.Thereis后跟单数名词Thereisanapple.Thereisaclassroom.Thereisonebook.Howmanyclassroomsarethere?Therearetwenty-fiveclassrooms.Howmany问数量，后面要跟可数名词复数Howmanypeachesarethere?Therearesevenpeaches.Thereare后跟数量词