7、vevoicealsoletthemhavecompitition.(6-7studentsagroup) thestudentswillgivesomesentensesafterworkingbygroups:1/.Footballisplayedallovertheworld.2/.Acameraisusedfortakingphotos.3/.TheGreatWallwas built byChinesepeople4/.Atalkwillbegivensoon.... 组织学生合作探究