（整理版高中英语）UNIT4ASTRONOMYthescienceofthestars2.doc

UNIT 4 ASTRONOMY:the science of the stars全员探究：It is _to your health to drink too much.(过量喝酒对你的身体有害) Smoking is _to ones health.吸烟对健康有害归纳拓展：doharm/do harm to_ be harmless to _ do more harm than good _Hot water will _the plant.(热水伤花草)I have got up early all my life, and it hasnt _(对我并没害处)2.exist vi. _Man cant _without air.(没有空气人就不能生存)火星上有生命吗？_?bringinto 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?zzle n/v.(1) n. _a cross word puzzle _I was in a _about the matter.(我对这件事迷惑不解)(2) 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。_2. in ones turn _Then in our turn, we got on the bus one by one._ 归纳拓展：Its ones turn to do something. _Itin turn _依次发言_take turns to do something _We _(轮流)to drive on the way to Canada.3. 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。_4. 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。_比拟：on time _与 in time _归纳拓展：in no time _at a time _at one time _5. 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 Inow that 和since相似，语气较弱，强调人们道的事实。