2022新外研版（2019）《高中英语》选择性必修第二册Unit 5　单元重点小结同步（ppt课件） (共9张PPT).pptx

1、单元重点小结主题语境重点词汇重点句式重点语法生态平衡 主题语境重点词汇重点句式重点语法1.decrease v.减少n.减少,缩减decrease by.减少了(指减少的差值)decrease to.减少到(指减少后的最终结果)decrease from.to.从减少到on the decrease在减少2.trap n.陷阱;圈套;计谋;夹子v.诱捕;设陷阱;困住set a trap设陷阱be caught in a trap落入圈套;落入陷阱be trapped in.困在里;陷入3.explode v.爆发;激增;(使)爆炸;突然(发出巨响,活跃起来,迸发感情)explosion n.爆

2、炸;爆发;激增explode with anger勃然大怒主题语境重点词汇重点句式重点语法4.owe vt.欠(钱、账、人情等);归功于;应感谢owe sb.sth./owe sth.to sb.欠某人某物owe sb.an apology该向某人道歉owe sb.a favour欠某人一个人情owe.to.把归功于;应感激owing adj.欠着的;未付的owing to=because of=on account of=due to 因为;由于5.absorb v.吸收;理解;吸引absorbing adj.引人入胜的,十分吸引人的be absorbed in全神贯注于主题语境重点词汇重点

3、句式重点语法6.rely on v.依靠;依赖;指望rely on sb.to do sth.指望/相信某人会做某事rely on(doing)sth.依赖/信任/指望(做)某事rely on it that.相信;指望reliable adj.可信赖的;可靠的7.break down(机器)出故障;(计划、希望、谈判等)失败;身体垮掉;分解break away from脱离(政党)break in打断(谈话);插嘴;破门而入break into强行闯入;撬开(汽车等)break out(战争、火灾等)爆发break through突破;穿透break up分散;拆散;结束;(关系等)破裂主题

4、语境重点词汇重点句式重点语法8.take in包括;领会;理解;欺骗;收留;收养;吸收take apart拆开;拆散take down拿下;取下;拆卸;记下take over继承;接收;接管take off脱下(衣服等);起飞;大获成功take on承担;呈现take up开始从事;占用(时间或空间);着手处理;接受;继续parison n.比较,对比by/in comparison with与相比较by comparison(用于句首)比较起来compare v.比较compare.to.把比作;把与相比compare.with.把与相比主题语境重点词汇重点句式重点语法10.variatio

5、n n.变化,变异,变种variety n.变化;多样性;种类a variety of多种多样的various adj.种类繁多的;各种各样的vary vi.改变;变化vary with sth.随而变化vary in在方面变化vary from.to.从到不等;在到之间变动主题语境重点词汇重点句式重点语法1.Nor would they fail to imagine how its native inhabitants,including royal penguins,king penguins and elephant seals,existed in perfect harmony w

6、ith their natural habitat for thousands of years.2.The cats in consequence turned their attention and their stomachsback to the native birds,killing up to 60,000 each year.3.Without bees,humans would die out.4.Is it its forests that stretch on and on like great green seas?主题语境重点词汇重点句式重点语法it作形式宾语I find it pleasant to work with him.The professor considers it no good reading without understanding.We all thought it a pity that the conference should have been cancelled.