人教版英语必修3-Unit4词汇讲解.ppt

2021/3/27 * Ⅲ. 句型透视 1. “so. . . that”句型 The earth ___________________(变得如此猛烈以至于)it was not clear whether the shape would last or not. 2. “make it possible to do sth. ”结构 This produced a chain reaction, which _____________________________(使生命的生长发育成为一种可能). became so violent that make it possible for life to develop 2021/3/27 * Ⅲ. 句型透视 3. “倍数+as+adj. /adv. +as”句型 But when I tried to step forward, I found I was carried _______________________(是地球上的两倍远)and fell over. 4. now that引导的原因状语从句 Walking does need a bit of practice __________________________(既然地球引力已发生了变化). twice as for as on the earth now that the gravity has changed 2021/3/27 * Ⅲ. 句型透视 5.This produced a chain reaction, which made it possible for life to develop. 这就产生了一系列的反应, 使得生命得以发展了。 make+宾语+宾语补足语 名词或形容词 不带to 的不定式 to do 过去分词 v-ed 介词短语 make + it + /adj./ /n./ + 不定式/从句 find, feel ,think, take也有这样的用法 2021/3/27 * Ⅲ. 句型透视 (1)“. . . 倍数＋as＋形容词/副词＋as. . . ”表示 “……是……的几倍”, 该句型也可用half, one-fourth等词, 表示“是……的一半/四分之一”等。 (2)有关倍数的表达方式还有: . . . 倍数＋形容词/副词的比较级＋than. . . . . . 倍数＋the＋名词＋of. . . . . . 倍数 + what 从句. . . . . .倍数＋that＋of＋B . . . The ＋(计量)名词(size/height/length/width…)＋of 2021/3/27 * Ⅲ. 句型透视 1.This road is twice as wide as that road. 2. What I get is twice more than Mr. Wang. 3. The price of the house this year is twice what it was last year. 4. The room is twice the size of my brother’s room. 2021/3/27 * Words and Expressions 必修三 Unit 4 2021/3/27 * 1.astronomy /n. C/ 天文学 New discoveries were made in astronomy, geography and medicine. astronomer /n./ 天文学家 I joined the Young Astronomers Club. astronaut /n.C/ 宇航员 Yang Liwei becomes the first Chinese astronaut. 2021/3/27 * 2. system /n.C/ 系统,体系;制度;  /n. U/条理,秩序 the solar system 太阳系 a social system 社会制度 under the new/old system 在新/旧制度下 They have an alarm system in the house. 他们房子里装有报警系统。 2021/3/27 * 3. theory /n.U/ 理论 We should combine theory with practice. evolution theory 进化论 in theory 理论