A. 大千世界
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Why do people want to go into space (进入太空)?
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I'd love to travel around the world (环游世界).
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You find oil in many parts of the world (在世界各地).
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It's the coldest (最冷的) place on earth.
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It's the hottest (最热的) place in the world.
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There's a five-hour time difference between (在...之间有时差)Britain and New York.
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Rio de Janeiro is only three hours behind (比...慢)London.
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They're nine hours ahead of (比...快) us in Sydney.
B. 物理特征
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I travelled through the continent of Asia (亚洲).
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China is an enormous country (大国).
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Elba is an island (岛屿) just off the coast of Italy.
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We flew over the Atlantic Ocean (大西洋).
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The Nile (尼罗河)is the longest river in Africa.
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We went driving in the Red Sea (红海).
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We travelled into the Sahara Desert (撒哈拉沙漠).
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Parts of the Amazon rainforest (亚马逊热带雨林) are disappearing.
C. 自然灾害
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The earthquake (地震) destroyed many homes.
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They said the hurricane (飓风)could hit Florida today.
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The floods (洪水)are terrible.
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There are many active volcanoes (火山)in the world.
随堂小练习：下列句子描述了哪些自然灾害？
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It lifted a car off the ground, and then we saw it disappear down the street.
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It was about two metres deep and we watched as our furniture just floated away.
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The walls began to move visibly, and large cracks opened up in the ground.
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The heat was incredible and we watched as the red hot lava came down the mountain.
来源：综合自教材English In Use, 牛津词典，云开英语等公开资源，供学习讨论用，非商用。
预告：明天主题-天气
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