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必修一 Unit 4 Earthquakes
Language points
Teaching goals
Knowledge goals
1.Important words and phrases:
extreme, destroy, brick, dam, track, useless, shock, rescue, trap, electricity, disaster, bury, mine, miner, shelter
2.Important sentences：
（1）. The army organized teams to dig out those who were trapped and to bury the dead. P26
（2）. Workers built shelters for survivors whose homes had been destroyed. P26
Ability goals
Enable the Ss to learn some important patterns.
Emotional goals
Enable the Ss to know more about earthquakes
Teaching difficult and important points
Teaching methods
Learn the language points through situations given and practice，
cooperative learning and speaking
Class-exercise
Language points
Imagine your home begins to shake and you must leave it right away.
imagine: form a mental picture
imagine + n. /pron.
imagine sb. to be
eg. Imagine yourself to be on a desert island.
2. right away: at once; in no time; immediately
right now: at this very moment
eg. Make up your mind right now.
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I’ll return the book right away.
3.A smelly gas came out of the cracks.
smelly: smell + y = adj.
smell n. / v. (smelt / smelled)
4. . … the water pipes in some buildings cracked and burst.
【寓词于境】 阅读下列句子，并试着 总结burst在句中的词性、含义及用法。
(1). The pipes had burst and the house was under two feet of water.
(2). The police burst into the room and took the young man away.
(3). Hearing the news, the woman burst into laughter.
(4). She burst out crying for no reason, which surprised us.
(5). There was a burst of laughter in the next room.
burst作 ___ 词，意思是 _____（句1）；常用于短语 burst into + a room, building, etc. 闯入，突然破门而入（句2）；burst into + n. 突然爆发，突然……起来（句3）；burst out doing突然……（句4）。burst作 ___ 词，意思是 _________（句5），还可指“爆裂；破裂之处，裂口”。
5. It seemed as if the world was at an end!
(1) as if 似乎，好像 = as though
She spoke to me as if she knew me.
她和我说话的神情，好像她早就认识我似的。
(2) as if 在表语从句中相当于that:
It seemed as if the meeting would never end. 看起来会议没完没了。
本文中as if 的用法就是第二种。
It seemed as if the world was at an end!
= It seemed that the world was at an end!
辨析at the end of ；by the end of ；in the end
at the end of 用于表示具体事物或场所的场合，它也可以用来表示比喻意;
by the end of 用于表示时间的场合，到……结束的时候，用于过去完成时态;
in the end 意思“最后、终于”。
6. In fifteen terrible seconds a large city lay in ruins.
lie (lay, lain): to be, remain or be kept in a certain state
in ruins: severely damaged or destroyed
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辨析ruin；destroy；damage
① damage 指部分“损坏”、“损害”、“破坏”或指使用价值有所降低。它可以用作动词, 也可以用作名词, 用作名词时常与to something连用。
eg. The accident did a lot of damage to his car.
② destroy 只能用作动词, 指彻底破坏, 以致不可能修复, 常作“破坏”、“毁灭”解, 也可以指希望、计划等打破。
eg. The earthquake destroyed almost the whole town.
③ ruin指对物体或生命彻底的破坏，但往往是非暴力的，也往往不是一次的打击结果，常指对美好的或希望中的事物的破坏。
eg. The fire ruined the house.
7. Two-thirds of the people died or were injured during the earthquake.
More than 61% of the surface of the earth is covered by water.
Seventy percent of the workers in this factory is young.
以百分数作为主语的，谓语动词是单数还是负数取决于百分数后面跟的名词是可数还是不可数的。
injure: to hurt oneself/ sb. / sth. physically
辨析injure；hurt；wound 三者都可表示受伤，伤害。
injure 一般是指在事故中受伤，往往意为“外伤”。
hurt 可指对身体上的伤害，也指对心灵造成的伤害。
wound 一般指外伤，如刀伤、枪伤等，尤其指在战争中，打斗中受伤。
Step Seven: Comprehending
Get the Ss to do the exercises in this part.
Step Eight: Consolidation
Listen to the text again to appreciate it.
Translation:
一． 用burst或其短语的适当形式填空。
1. The plane crashed and _________ flames.
2. The dam _____ because of the heavy rain.
3. It looked as if Kate was about to _____ ____ tears.
4. Everyone was quiet when John suddenly _________ laughing.
Changjiang River is?
二．请根据提示完成下列句子。
1. ________ (三分之一) of the students in our class ____ (be) girls.
2. __________ (五分之三) of the soil __________ (wash) away by the
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flood last night.
3. ______ (一半) of the desks in this school ________ (make) in his company.
4. ______ (大部分的) of the lecture he made yesterday ____ (be) interesting.
三．翻译句子
1.这场仗似乎老打不完。
2.昨天有一万学生参加了这次考试。
3.他们所能看到的一切都被摧毁了。
（平行班和A段做第一、二大题。重点班和实验班全部做完）
教学反思
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