1、导读 话题美文感悟 教材原文预学 语言知识v Period I 单 元 预习课v 震是一种可怕的自然 现 象。地震是如何发 生的，它又有哪些危害呢？ v EARTHQUAKESv Every year there are hundreds of earthquakes in different parts of the world.China， Japan， Russia and the USA have the highest occurrence (发 生 ) of earthquakes in the world. v The earths crust (地壳 ) is made up
2、of layers of rock called plates.As these plates move， they sometimes crash against each other， causing the crust to quake.Earthquakes can also break up gas and oil pipes.This can cause fires tov break out， which can do as much damage as the earthquake itself.v Another effect of earthquakes is tsunam
3、is (海 啸 ) These are huge waves created by earthquakes beneath the sea.They can be many meters high and cause great damage to coastal towns and cities.v On May 12th， 2008， a strong earthquake struck Sichuan province， China.It killed nearly 80， 000 lives， injured about 370， 000 and caused a lot of dam
4、age.v We measure an earthquakes strength on the Richter scale (里氏震 级 ) The Richter scale was introduced in 1935 in Southern California in the USA.It measures earthquakes on a scale of one to ten.Any earthquake measuring five or more is usually serious.v 1 strike vt. 袭击v 2 be made up of 由 构成v 3 break
5、 up 打碎；粉碎v 4 break out 爆 发 ； 发 生 v 1 Which areas of the world have frequent earthquakes? (No more than 8 words)v _v 2 What does paragraph two want to tell us? (No more than 10 words)v _v 3 What is the cause of tsunamis? (No more than 2 words)v _v 【 答案 】 1.China， Japan， Russia and the USA. 2.How an e
6、arthquake is measured. 3.an earthquake/earthquakes.v 第 1步识记 核心单词v .根据所给词性和汉语提示写出下列单词v 1 _ n. 地震v 2 _ n. 井v 3 _ n. 管；导管v 4 _ n. 百万v 5 _ n. 民族；国家；国民earthquakewellpipemillionnationv 6 _ n. 运河；水道v 7. _n. 蒸汽；水汽v 8 _ n. 污 垢；泥土v 9 _ n. 苦 难 ；痛苦v 10 _ adj. 极度的v 11 _ vt.损 害； 伤 害v 12 _ vt.破坏； 毁 坏；消 灭v 13 _ n. 轨 道；足迹canalcanaldirtsufferingextremeinjuredestroytrackv 14 _ vt. & vi. (使 )震惊；震 动 n. 休克；打 击 ；震惊v 15 _ n. 电 ； 电 流； 电 学v 16 _ n 矿 ； 矿 山； 矿 井v 17 _ n 矿 工v 18 _ n掩蔽；掩蔽 处 ；避身 处v 19 _ n 标题 ； 头衔v 20 _ n 记 者shockelectricitymineminersheltertitlereporter
