外研版 (2019)选择性必修 第二册Unit 5 A delicate world教学课件ppt

这是一份外研版 (2019)选择性必修 第二册Unit 5 A delicate world教学课件ppt，共9页。PPT课件主要包含了主题语境，重点词汇，重点句式，重点语法，生态平衡 等内容，欢迎下载使用。

1.decrease v.减少　n.减少,缩减decrease by...减少了……(指减少的差值)decrease t ...减少到……(指减少后的最终结果)decrease frm... t...从……减少到……n 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.explde v.爆发;激增;(使)爆炸;突然(发出巨响,活跃起来,迸发感情)explsin n.爆炸;爆发;激增explde with anger勃然大怒
4.we vt.欠(钱、账、人情等);归功于;应感谢we sth.t sb.欠某人某物we sb.an aplgy该向某人道歉we sb.a favur欠某人一个人情把……归功于……;应感激……wing adj.欠着的;未付的wing t=because f=n accunt f=due t 因为;由于5.absrb v.吸收;理解;吸引absrbing adj.引人入胜的,十分吸引人的be absrbed in全神贯注于……
6.rely n v.依靠;依赖;指望rely n sb.t d sth.指望/相信某人会做某事rely n (ding) sth.依赖/信任/指望(做)某事rely n it that...相信……;指望……reliable adj.可信赖的;可靠的7.break dwn (机器)出故障;(计划、希望、谈判等)失败;身体垮掉;分解break away frm脱离(政党)break in打断(谈话);插嘴;破门而入break int强行闯入;撬开(汽车等)break ut (战争、火灾等)爆发break thrugh突破;穿透break up分散;拆散;结束;(关系等)破裂
8.take in包括;领会;理解;欺骗;收留;收养;吸收take apart拆开;拆散take dwn拿下;取下;拆卸;记下take ver继承;接收;接管take ff脱下(衣服等);起飞;大获成功take n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9.cmparisn n.比较,对比by/in cmparisn with与……相比较by cmparisn (用于句首)比较起来cmpare v.比较把……比作……;把……与……相比把……与……相比
10.variatin n.变化,变异,变种variety n.变化;多样性;种类a variety f多种多样的varius 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 从……到……不等;在……到……之间变动
1.Nr wuld they fail t imagine hw its native inhabitants,including ryal penguins,king penguins and elephant seals,existed in perfect harmny with their natural habitat fr thusands f cats in cnsequence turned their attentin — and their stmachs—back t the native birds,killing up t 60,000 each bees,humans wuld die it its frests that stretch n and n like great green seas?