文档介绍：In this unit you will:
1. learn that disasters occur in many forms, and we humans
can take measures to prevent them;
2. familiarize yourself with the words and expressions related
to the theme of the unit;
3. learn to use these words and expressions;
4. learn news listening strategies concerning the lexical
features of news reports;
5. practice listening with other non-theme-related audio and
video materials;
6. learn to use the proper expressions and sentence
structures to make complaints
Learning objectives
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Part I Theme-Related Activities
Part II Listening Strategy
Part III Extensive Listening
Part IV Communication Skills
Part V Assessment Log
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Part I Theme-Related Activities
Section I Lecture
Section II Science Report
Section III Science Report
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1. Can you name some natural disasters we have
every year?
2. Can you give an example of one memorable
natural disaster that happened in the past?
Lead-in questions:
Unit 8 》Part I 》Section I 》Lead-in questions
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Word Bank
stall /stɔːl/ v.
使熄火；使失速
plume /pluːm/ n.
羽状物（如烟云,雪尘等）；
火山灰
erupt /ɪˈrʌpt/ v.
爆发
geologist /dʒɪˈɒlədʒɪst/ n.
地质学家
US Geological Survey
美国地质调查局
hazard /ˈhæzəd/ n.
危险；危害物
seismic /ˈsaɪzmɪk/ adj.
地震的
eruption /ɪˈrʌpʃən/ n.
爆发
code /kəʊd/ v.
编码
Unit 8 》Part I 》Section I 》Word Bank
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Unit 8 》Part I 》Section I 》Word Bank
phase /feɪz/ n.
阶段
lava /ˈlɑːvə/ n.
熔岩；火山岩浆
avalanche /ˈævəlɑːnʃ/ n.
雪崩
debris /ˈdebriː/ n.
岩屑；瓦砾
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Notes
Unit 8 》Part I 》Section I 》Notes
The United States Geological Survey (USGS)
It is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology. The USGS is a fact-finding research organi