高中英语 unit 4 astronomy the science of the stars period 1 warming up and reading优秀教案 新人教版必修3
9页1、Unit 4 Astronomy: the science of the stars 单元要览类别课程标准要求掌握的项目话题Science of the stars; the development of life; space travel and gravity词汇astronomyn. 天文学existvi. 存在; 生存systemn. 系统; 体系; 制度thusadv. 因此; 于是religionn. 宗教; 宗教信仰dioxiden. 二氧化物theoryn. 学说; 理论biologyn. 生物学atomn. 原子biologistn. 生物学家billionpron. & n. & adj. (英)万亿; (美)十亿puzzlen. 迷; 难题vt. & vi. (使)迷惑; (使)为难globen. 球体; 地球仪; 地球gravityn. 万有引力; 重力violentadj. 猛烈的; 激烈的; 强暴的floatvt. & vi. (使)浮动; (使)漂浮n. 漂浮物carbonn. 碳gentleadj. 温和的; 文雅的atmospheren. 大气层;
2、气氛physicistn. 物理学家unlikeprep. 不同; 不像climaten. 气候fundamentaladj. 基本的; 基础的crashvt. & vi. 碰撞; 坠落harmfuladj. 有害的spaceshipn. 宇宙飞船acidn. 酸pulln. & vt. 拉; 拖; 牵引力chainn. 链子; 连锁; 锁链satelliten. 卫星; 人造卫星multiplyvt. & vi. 乘; 增加massn. 质量; 团; 块; 大量oxygenn. 氧exhaustvt. 用尽; 耗尽短语solar system太阳系block out挡住(光线)in time及时; 终于cheer up感到高兴; 感到振奋lay eggs下蛋now that既然give birth to产生; 分娩break out突发; 爆发in ones turn轮到某人; 接着watch out密切注视; 当心; 提防carbon dioxide二氧化碳prevent. . . from阻止; 制止重要句型1. What it was to become was uncerta
3、in until between 4. 5 and 3. 8 billion years ago when the dust settled into a solid globe. (be to do; what-clause as the subject)2. The earth became so violent that it was not clear whether the shape would last or not. (so. . . that; it is/was not+adj. +whether-clause)3. What is even more important is that as the earth cooled down, water began to appear on its surface. (what-clause as the subject; that-clause as the predicative)4. It was not immediately obvious that water was to be fundamental t
4、o the development of life. it is/was (not)+adj. +that 5. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. (whether-clause as the subject; depend on+whether-clause as the object)功能Instructions:Please pay attention to. . . Please check that. . . . You need. . .Dont forget to. . .Make sure that. . . .Watch out for. . .Youd better. . .You must/mustnt. . .Please look at. . .语法Noun clauses as the subjectWhat it was to become wa
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