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1、导读话题美文,感悟教材原文,预学语言知识,Period I 单元预习课 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？ EARTHQUAKES 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.,The earths crust (地壳) is made up of layers of rock
2、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 to break out，which can do as much damage as the earthquake itself. Another effect of earthquakes is tsunamis (海啸)These are huge w
3、aves created by earthquakes beneath the sea.They can be many meters high and cause great damage to coastal towns and cities.,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 damage. We measure an earthquakes st
4、rength 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.,1strike vt. 袭击 2be made up of 由构成 3break up 打碎；粉碎 4break out 爆发；发生,1Which areas of t
5、he world have frequent earthquakes? (No more than 8 words) _ 2What does paragraph two want to tell us? (No more than 10 words) _,3What is the cause of tsunamis? (No more than 2 words) _ 【答案】 1.China，Japan，Russia and the USA. 2.How an earthquake is measured. 3.an earthquake/earthquakes.,第1步识记核心单词 .根据
6、所给词性和汉语提示写出下列单词 1_ n. 地震 2_ n. 井 3_ n. 管；导管 4_ n. 百万 5_ n. 民族；国家；国民,earthquake,well,pipe,million,nation,6_ n. 运河；水道 7. _n. 蒸汽；水汽 8_ n. 污垢；泥土 9_ n. 苦难；痛苦 10_ adj. 极度的 11_ vt.损害；伤害 12_ vt.破坏；毁坏；消灭 13_ n. 轨道；足迹,canal,canal,dirt,suffering,extreme,injure,destroy,track,14_ vt. & vi. (使)震惊；震动 n. 休克；打击；震惊 1
7、5_ n. 电；电流；电学 16_ n矿；矿山；矿井 17_ n矿工 18_ n掩蔽；掩蔽处；避身处 19_ n标题；头衔 20_ n记者,shock,electricity,mine,miner,shelter,title,reporter,.将单词和所给英语释义连线 1burst Asomething that has a bad effect 2event Bthe plan to catch something 3ruin Cto put something under the ground 4useless Dserious damage or destruction(破坏) 5re
8、scue Ean important thing that happens 6trap Fto break open or in pieces suddenly 7disaster Gto save from danger or harm 8bury Hnot useful 【答案】 18 FEDHGBAC,第2步掌握高频短语 .根据所给汉语提示写出下列短语 1_ 立刻；马上 2_和往常一样 3_ 仿佛；好像 4_ 结束；终结 5_严重受损；破败不堪 6_ 掘出；发现 7_许多；大量的,right away,as usual,as if,in ruins,dig out,a great num
9、ber of,.用以上短语的适当形式填空 1Two years later the war was finally _ 2Many buildings were _ because of the big flood. 3Hurry up! It looks _ it is going to rain. 4_ houses were burnt down in the big fire. 5He is ill; you should call in the doctor _ 6They _ an ancient tomb by accident.,7Tom is always late.This
10、 morning he came to school late _ 【答案】 1.at an end 2.in ruins 3.as if 4.A great number of 5.right away 6.dug out 7.as usual,第3步背诵重点句型 .背诵下列教材中出现的句型，体会黑体部分的用法 1In the farmyard，the chickens and even the pigs were too nervous to eat. 农家大院里的鸡，甚至猪都因过于惶恐而不想进食。 2It seemed as if the world was at an end. 似乎世
11、界末日来临了。,3Thousands of families were killed and many children were left without parents. 成千上万个家庭遇难，许多孩子变成了孤儿。 4All hope was not lost. 不是所有的希望都破灭了。,从四个选项中选择最佳答案 1All the following unusual things happened before the quake except that _ Athe water in the village wells rose and fell Bthe chickens and eve
12、n the pigs were too nervous to eat Ctens of thousands of cows would never give milk again Dfish jumped out of their bowls and ponds,2What is the number of people who were killed or injured during the earthquake? A400，000. B150，000. C10，000. D50，000. 3What was the result of the earthquake? ALuckily，t
13、he citys hospitals survived. BAll of the citys factories were gone. CMost of the citys homes were gone. DThe wind could blow the bricks on the ground away.,4The title “A night the earth didnt sleep” means _ AThe earth was awake all night long BPeople on the earth couldnt fall asleep that night CThe
14、earth shook like crazy that night DAnimals on the earth would not sleep that night,5What can we infer from the text? AIt was the greatest earthquake of the 20th century. BBoth the countryside and the city were badly destroyed by the earthquake. CThe city of Tangshan was shaken twice on July 28，1976. DThe whole nation united to help Tangshan. 【答案】 15 CACCC,完成下面表格(每空不超过3个词),【答案】 1.Strange things 2.rose and fell 3.too nervous 4Mice 5.jumped out of 6.burst 7.dirt 8.fell 9useless 10.electricity,
