外研版必修一module5单词讲解.ppt

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1、Module 5 Words,liquid c.&u.液体,solid 固体 gas 气体,e.g.Water has three states:solid,liquid and gas.,liquid&solid adj.,2 expand vi.扩展e.g.Air expands when heated.(vi.)e.g.The writer expanded his short novel into a long one.(vt.)expansion n.expansive adj.广大的,辽阔的,3 contract vi.&vt.使缩短,收缩,定合同 n.合同,契约e.g.Metal

2、 contracts as it cools.contract sth.with sb.=contract with sb for sth与.订立合同e.g.The two countries contracted a contract with each other.,4 substance n c.物质e.g.This is a chemical substance.matter“物质”的总称,不可数;substance 具体的“物质”,可数.5 mixture n.混合物;合成品,e.g.That day was a mixture of sun and clouds.,那天是晴间多云

3、mix vt.混淆 mixwith 把跟混合在一起,e.g.Oil wont mix with water.油和水不能混合 e.g.不要把学习和玩混在一起be mixed up in sth.与有牵连e.g.I dont want to be mixed up in the affair.,Dont mix study with playing.,6.oxygen n.氧气 hydrogen n.氢气 nitrogen n.氮气7 stage n阶段；时期；舞台 at this stage 在这个阶段 stage by stage 逐步地，逐渐地8 conclusion n.c结论，决定 ar

4、rive at/come to/draw/reach a conclusion得出结论,9 reaction n.反应;反作用 reaction to sth.对的反应e.g.What was his reaction to your remarks?react v.反应 e.g.How did he react when you called him a fool.react with sth.与发生(化学)反 e.g.metals react with oxygen.,10.equipment n.u 装备，设备a piece of equipment 一项设备equip vt.装备equ

5、ip with sth.以配备(主动)be equipped with sth.(被动)e.g.The destroyer is equipped with a radar.,11 partial adj.局部的,部分的 complete 完整的 be partial to sth.特别喜欢，偏爱e.g.I am very partial to playing Ping-Pong.12 rust vi.&n 生锈；锈e.g.If you leave metal tools outside in the rain,they will rust.e.g.Its a car with a lot o

6、f rust.,13 ordinary adj.普通的；平常的；平凡的 e.g.He is just an ordinary man.e.g.He is wearing an ordinary uniform.ordinary,common,usual和normal的区别名师:p7714 float vi.漂浮；漂流 e.g.Wood floats on water.e.g.A balloon floated away on the wind.,15 dissolve vt.&vi.溶解,分解,解散e.g.Salt dissolves in water.(溶解)e.g.The chemist

7、dissolved water into oxygen and hydrogen.(分解)e.g.The teacher dissolved their students.(解散)melt和dissolve的区别名师:P 78,16 balance n./v.天平,秤;(使)平衡 e.g.We weigh something in/on the balance.e.g.They broke the balance of power.e.g.He can balance on one foot.keep ones balance 保持平衡lose ones balance 失去平衡 I lost

8、 my balance and I slipped.,17 lecture n.c&vi 讲演,讲课e.g.Professor Wang gave a lecture on Chinese literature in the hall.a lecture on sth 关于的讲座(不用about)lecture 指教授等作的教育性或学术性演讲speech 指政治家等要人作的发言，演说attend/have a lecture 听讲演give a lecture 做讲座,上讲演课,18.astonished adj.惊讶的 e.g.I am astonished at the astonishi

9、ng news.be astonished 从句 名师:P 79astonish vt.使吃惊e.g.The news astonished everybody.,at sth.to do sth.that+从句,19 form v.形成,组成,构成 n.形态,形式,表格 e.g.Steam forms when water boils.e.g.Seven players form the team.,e.g.Please fill in this form.e.g.I like any form of exercise.,air-gas-oxygen2)contract-expand3)ea

10、rth-sun-moon4)gas-liquid-solid,1 Electricity,iron,some metals and air are natural.2 Steel,some metals and glass are man-made3 Electricity and some metals can be man-made and natural.,0 0 0,0 0 0,0 0 0,billion million thousand,1,000112,000212,000,000,one thousand,one hundred and twelve thousand,two h

11、undred and twelve million,2,000,000 two million5,100,000 five million,one hundred thousand12,269,000 twelve milliontwo hundred and sixty-nine thousand,分数表达法1 先说分子,后说分母;2 分子用基数词,分母用序数词；3 分子大于1,分母加 s,1/4 a quarter=one quarter1/3 a third=one third4/5 four-fifths3/4 three quarters=three fourths1/2 a hal

12、f=one half,1 quarter c 四分之一；一刻钟；一季度,2 half c 一半 a/one half two halves a/one wolf two wolves,adj.一半的a half hour=half an hour 半个小时;a half mile=half a mile 半里eg.Half of the apple _ bad.(be)Half of the six apples _ bad.(be),1.What is 1/2 of 6,000,000?3.What is 25%of 200,000,000?6.What is 10%of 800,000,0

13、00?,3,000,00050,000,00080,000,000,1 be wrong with 有毛病，不正常，出故障What is wrong with=What is the matter with 怎么了？出什么事了？,2 two times()One time(),表示“两次，两倍”一定要用 twice.“一次，一倍”，一定要用once.三次或三倍以上，一般用：基数词times.,3 weigh vt 称重量；考虑eg.He weighed his words before speaking.,他三思而后行Why not weigh the baby to find out how much it weighs?vi.重多少,Homework,做第三期英语周报的：单选完型填空改错背诵剩余的单词p45p49,