外研版必修一module5单词讲解

keep one’s balance 保持平衡 lose one’s balance 失去平衡 I lost 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
two million five million,one hundred thousand
12,269,000 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 1/3 4/5 3/4 1/2 a quarter = one quarter a third = one third four-fifths three quarters = three fourths a half = one half
eg. Half of the apple ___ bad. ( be ) Half of the six apples ___ bad. ( be )
1. What is 1/2 of 6,000,000? 3,000,000
3. What is 25% of 200,000,000?
50,000,000 6. What is 10% of 800,000,000? 80,000,000
e.g. Please fill in this form. e.g. I like any form of exercise.
1) air-gas-oxygen 2) contract-expand 3) earth-sun-moon 4) gas-liquid-solid
1 Electricity, iron, some metals and air are natural. 2 Steel, some metals and glass are manmade 3 Electricity and some metals can be man-made and natural.
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 astonishing news. at sth. be astonished 从句 名师: P 79 to do sth.
1 ,0 0 0, 0 0 0, 0 0 0
billion million thousand
1,000 112,000 one thousand one hundred and twelve thousand two hundred and twelve
212,000,000
million
2,000,000 5,100,000
that + 从句．
astonish vt. 使吃惊 e.g. The news astonished everybody.
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.
10.equipment n.[u] 装备，设备 a piece of equipment 一项设备
equip vt.装备 equip… with sth. 以…配备(主动) be equipped with sth. (被动)
e.g. The destroyer is equipped with a radar.
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: p77
14 float vi. 漂浮；漂流 e.g. Wood floats on water. e.g. A balloon floated away on the wind.
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． mix vt. &vi (使)混合;混淆 mix…with… 把…跟…混合在一起．
15 dissolve vt.& vi. 溶解,分解,解散 e.g. Salt dissolves in water. (溶解) e.g. The chemist dissolved water into oxygen and hydrogen. (分解) e.g. The teacher dissolved their students. (解散)
1 quarter [c] 四分之一；一刻钟；一季度 2 half [c] 一半 a /one half a / one wolf two halves two wolves
[adj.]一半的 a half hour = half an hour 半个小时; a half mile = half a mile 半里
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”． twice. ―一次，一倍”，
一定要用 一定要用once.
Module 5 Words
１． 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.& vt. (使)膨胀;扩大;扩展
e.g. Oil won’t mix with water.油和水不能 混合 e.g. 不要把学习和玩混在一起． Don’t mix study with playing.
be mixed up in sth. 与…有牵连 e.g. I don’t want to be mixed up in the affair.
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
⒈做第三期英语周报的： 单选／完型填空／改错 ⒉背诵 剩余的单词 p45—p49
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.
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 arrive at / come to / draw / reach a conclusion 得出结论
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 PingPong.
12 rust vi.& n 生锈；锈 e.g. If you leave metal tools outside in the rain, they will rust. e.g. It’s a car with a lot of rust.
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.
e.g. Air expands when heated. (vi.) e.g. The writer expanded his short novel into a long one. (vt.)
பைடு நூலகம்
expansion
expansive
n.
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 contracts as it cools. contract sth. with sb.=contract with sb for sth 与….订立合同