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选修八《Unit 8 Humankind and Nature Section 1： NEW WORDS, NEW IDEARS》优秀教案
dam 大坝
track 轨道；足迹；痕迹
shelter 掩蔽；掩蔽处；避身处
survivor幸存者；生还者；残存物
形容词：
terrible可怕的，糟糕的
extreme 极度的
useless 无用的
动词：
injure vt.损害；伤害
destroy vt.破坏；毁坏；消灭
shock vt.& vi.（使）震惊；震动 n.震惊
rescue vt.& n.援救；营救
trap vt.使陷入困境 n.陷阱；困境
bury vt.埋葬；掩埋；隐藏
Important point: 1. to learn the vocabulary in this unit;
to appreciate the relationship between human and nature.
Difficult point: how to write a composition about a disaster.
Step I. Nouns(名词)
1.Translate the sentences:
(1) In 15 terrible seconds a large city lay in ruins.
(2) The suffering of the people was extreme.
(3) Two dams fell and most of the bridges also fell or were not safe for travelling.
(4) The railway tracks were now useless pieces of steel.
(5) Workers built shelters for survivors.