北师大版高中英语模块8 Unit 22 Environmental Pretection语言点（2）

Unit 22 Environmental Protection 语言点（2） 学习目标 重点词汇 means, construct, slip, flee, potential, adopt, allocate, sharpen, valid 重点短语 wrap up, on sb’s behalf, for good, carry off, all in all, result in, in conflict, earn one’s living, all the best, sum up, as a matter of fact, break away from 重点句型 to some degree及插入语 知识讲解 重点词汇 means 【原句回放】People in agricultural areas, without any means to earn their living, move to the cities, and ... 农业地区的人口因为没有办法谋生而流向城市…… 【点拨】means n．方法，手段；工具 注意：means单复数相同，作主语时要根据语境判断谓语动词是单数还是复数。 常用搭配： by means of 用某办法；借助于某事物 by this means 用这种方式 by all means 一定；务必 by no means 一点也不，决不 by any means 全然，无论如何 by some means 用某种方法 It is all a means to an end. 这只是达到目的的一种手段。 He climbed the tree by means of a ladder. 他用梯子爬上了树。 Every possible means has been used to prevent the air pollution，but the sky is still not very clear. 为防止空气污染，每种可能的方法都已用过了，但天空仍然不清澈。 Many means of transportation are to be used. 很多运输方式将被使用。 construct 【原句回放】... and then construct shabby homes from whatever materials they can find on poor clay soil. ……他们在贫瘠的土地上用可以找到的任何材料搭建起破烂的房屋。 【点拨】construct vt. 建造，构筑，编造，组成 This factory was constructed by our company. 这家工厂是由我们公司建设的。 The novel is constructed from a series of on-the-spot reports. 这部小说是根据一系列的现场报道而构思的。 【拓展】build, construct, found, establish, set up的区别 这些动词均有“建设、建立、建造”之意。 build 普通用词，含义广泛，可指一切具体或抽象的建造或建立。 construct 较正式用词，强调根据一定计划进行的规模较大，结构较复杂，要求较高技术的建造。 found 侧重打下基础或创办，具体或抽象事物均可用。 establish 着重稳固地建成，可具体指国家、政府、学校或商店等的建立，也可指信仰、信用、名誉、法律、制度、规则等的建立。 set up 作“建立”用时，侧重于“开始”。可指具体或抽象的建立。 slip 【原句回放】These homes, seldom made of bricks, can easily fall down in earthquakes or slip and slide downhill in landslides, especially in mountainous areas. 这些房屋很少是由砖制成的，很容易在地震中倒塌或者在山体滑坡时滑下山坡，特别是在山区。 【点拨】slip vi. （意外而不自主地）滑动；滑跤；悄悄过去；跌落，降低 n. 滑倒；小过失 My foot slipped and I nearly fell. 我的脚一滑，差点跌到。 She slipped into the room when no one was looking. 她趁无人注意的时候溜进了房间。 His popularity has slipped recently. 他的声望最近有所下降。 That’s a slip of the pen. 那是一个笔误。 【拓展1】slippery adj. 滑溜的 【拓展2】slide vt. & vi. 在（使）平面上滑动；悄悄溜过 注意：过去式slid，过去分词 slid；现在分词 sliding She fell over and slid across the shiny floor. 她跌倒了，滑过了发亮的地板。 The boys amused themselves by sliding down the banister. 男孩们从楼梯扶手滑下以取乐。 He slid into the driver’s seat. 他麻利地坐进驾驶员的座位。 flee 【原句回放】In May 2006, thousands of Indonesians ... ...