Unit 3【学习目标】1、熟练运用could 表达有礼貌的提出要求以及请求准许。2、读懂“做家务活动”话题的讨论类文章，练习使用“略读策略”。【形成性检测】一、单项选择1.Jack often _ me to his club.A.asks B.tells C.hopes D.invites2.Could I _ paper from you? I left mine at home.A. borrow some B.lend any C.get many D. take a 3.When I was at your age, I already _ work.A. must B.have to C. had to D. must to 4.Could you please _ the blackboard?A.not clean B.not cleaning C.not to clean D.dont clean5.Could you finish your homework _？ A.one B.first C.before D.ago 6.Could you please sweep the floor？ _.A. Yes, sure B. Yes, you can C.Sorry, you cant D.Im afraid you cant.7.Thank you for _ me to your party. A. ask B. to ask C.asking D.asked8.You must come back _ nine. A.in B. before C. after D. until9.Sorry, I forget _ the windows last night. A. to close B. closed C. closing D. close10.I hate _ classical music. A. hearing B. listening to C. to listen D. to hear二、用适当的介词填空。1. My sister often borrows books _ the school library.2. Grandpa likes children and plays _ them.3.Does your mother often take her dog _ a walk ?4.Thanks _ sending me such beautiful pictures.5.Jack invited me _ his new house for a visit.