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  3. 共用题干 The world has got rainforests which cover 7% of the earth's surface.Th...

共用题干 The world has got rainforests which cover 7% of the earth's surface.Th...

admin2020-12-24  11
问题 共用题干
The world has got rainforests which cover 7% of the earth's surface.They grow around the earth's equator in South America,Central America,Africa,Southeast Asia,and Australia. Rainforests are important.(46)______.These rainforests are wet and warm.They get more than two meters of rain each year,and temperatures are usually between 24℃and 27℃．(47)______. Each area has a different environment with different plants,trees and animals.
(48)______.Every day a part of the rainforest,the same size as a football field,is destroyed because of human activities.(49)______,people cut down trees to make plantations to grow food,to get minerals or metals out of the ground or to build more and more houses.(50) ______.Cutting down trees must be prohibited and wild animals must be protected.If people break these rules,they must be arrested and severely punished.
选项 _________（50）
A:Therefore strict measures must be taken
B:They give the earth oxygen,and are the home for half of the world's animals and plants
C:Because of a growing population
D:Unfortunately,these rainforests are in danger
E:Tropical rainforests are home to tribal peoples who rely on their surroundings for food,shelter,and medicines
F: They are divided into four different areas
答案A
解析本题考查的是对上下文之间意义关系的理解和对文章细节的把握。根据上文内容此处应填写的是“它们给地球提供氧气，是世界上一半动植物的家园”。
本题考查的是对上下文之间意义关系的理解。根据下文此处内容是“雨林被分成不同的区域”。
本题考查的是对上下文之间意义关系的理解。根据下文内容这里应是 “不幸的是，这些雨林处于危险之中”。
本题考查的是对上下文之间意义关系的理解。根据下文内容，此处是“由于人口增加”。
本题考查的是对上下文之间意义关系的理解。根据上下文内容，此处是 “因此，必须采取严格的措施”。
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