-1-Unit3CelebrationsUnit3CelebrationsPart6Part6AssessmentofUnit3AssessmentofUnit3必备知识基础练进阶训练第一层基础知识Ⅰ.单词拼写1．We'llhavea________(烧烤野餐)nextweek.2．Thepartyisforstudentstocelebratetheir______...