重庆市万州分水中学高一英语必修三《Unit4Astronomythescienceofthestars全员探究》教学案（人教版）.docVIP

第  PAGE 2 页 共  NUMPAGES 2 页 2.exist vi. ____________________ Man can’t ______without air.(没有空气人就不能生存) 火星上有生命吗？___________________________________________? 拓展：存在 n.________________ bring…into existence ____________________ come into existence=come into being ___________________ (1). An information bureau was brought _______existence to deal with inquiries. (2) When did this world come _______existence? 3.puzzle n/v. n. ______________ a cross word puzzle _____________ I was in a _______about the matter.(我对这件事迷惑不解) vt. _____________ The question puzzled me.=I was _________by the question. 归纳拓展：adj. ____________ 困惑的 She listened with _____________________(困惑的表情)on her face. 他不知道下一步怎么办。____________________________________________ in one’s turn _______________ Then in our turn, we got on the bus one by one._____________________________ 归纳拓展： It’s one’s turn to do something. ___________________________________ It’s your turn to read, John.___________________________________ in turn ____________________ 依次发言____________________ Interest rate were cut, and in turn, share prices rose.__________________________ take turns to do something ____________________ We _____________(轮流)to drive on the way to Canada. prevent …from (doing) sth. 什么也阻止不了我实现目标。_____________________________________________她因病不能参加考试。___________________________________________________ in time (1).及时 我们能及时到达车站吗？________________________________________________ (2).迟早；总有一天；终于 游泳不好学，但你迟早会学会的。________________________________________ 比较：on time ___________与 in time ________________________ 归纳拓展：in no time ___________at a time ____________at one time __________ now that 既然，由于，充当连词，that可以省略 既然你长大了，就不应该依靠你的父母。____________________________________ Now that I’m free, I can enjoy music for a while.______________________________ now that 和since相似，语气较弱，强调人们已知道的事实。