Ⅰ. 高频单词必记1 . n . 系统;体系;制度2 . n. 学说;理论3 . n. 大气层;气氛4 . adj. 基本的;基础的5 . adv. 因此;于是systemtheoryatmospherefundamentalthus6 . vt.& vi. ( 使 ) 迷惑; ( 使 ) 为难 n. 谜;难题7 . adj. 温和的;文雅的8 . vi.& vt. 碰撞;坠落9 . n . &vt. 拉 ( 力 ) ;拖;牵引力10 . vi.& vt. ( 使 ) 浮动; ( 使 ) 漂浮 n. 漂浮物puzzlegentlecrashpullfloat11 . adj. 猛烈的;激烈的;强暴的→ n .暴力 → adv. 暴力地;猛烈地12 . prep. 不同;不像→ vt. 喜欢;prep. 相像的 → adj. 可能的13 . adj. 有害的→ n . &v. 伤害→ adj. 无害的14 . vi. 存在;生存→ n .存在;生存violentviolenceviolentlyunlikelikelikelyharmfulharmharmlessexistexistenceⅡ. 重点短语必背1 . 及时;终于2 . 下蛋3 . 产生;分娩4 . 轮到某人;接着5 . 阻止;制止in timelay eggsgive birth toin one‘s turnprevent ...from6 . 感到高兴;感到振奋7 . 既然8 . 突发;爆发9 . 密切注视;当心;提防10 . 挡住( 光线 )cheer upnow thatbreak outwatch outblock outⅢ. 经典句型必会1 . What is even more important is that as the earth cooled down, water began to appear on its surface.更为重要的是,当地球冷却下来时水开始在地球表面出现了。解读: what 引导主语从句。仿写:当在太空旅行的时候,人类一定害怕的是来自太阳的辐射。________________________________when traveling in space is radiation from the sun.答案: What man must fear2 . The earth became so violent that it was not clear whether the shape would last or not.地球变得如此激烈动荡以致于不知道这个固体形状是否会继续存在下去。解读: whether ...or not “ 是否……”。仿写:经理还没有决定是否派我去国外。The manager didn't decide _________________________.答案: whether I would be sent abroad or not3 . But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.而当我试着向前迈步的时候,我发觉我被送出去很...