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范畴:人与自然 主题:自然生态 体裁:说明文 难度:★★★★ 建议用时:8分钟 评价:/4
The Amazon Rainforest is in South America. It is the world's biggest rainforest. The Amazon River runs through the rainforest. It's the world's second longest river. But a new study shows that the Amazon Rainforest may become grassland in a few years.
Climate change and human activities make it "sick". Usually, the rainforest can fix itself. But now, it feels too "tired" to get better. The trees may die and the rainforest could turn into hot and dry grassland.
Why is the Amazon Rainforest "sick"? The Amazon Rainforest is one of the world's wettest places. But since 2005, three droughts have hit the rainforest. They were caused by climate change. The trees don't have enough water to grow. What's worse, as they become dry, they can easily catch fire.
On top of this, people cut down rainforest trees for wood. They burn the forest to make farmland. They clear trees to find minerals. All these activities have caused about 17 per cent of the rainforest to disappear.
What will happen if we lose it?
The Amazon Rainforest is like the lungs of our planet. The rich plants there take CO₂ out of the air and make oxygen. If the Amazon Rainforest "dies", there will be more CO₂ and our Earth will become even hotter.
The Amazon Rainforest is also home to millions of animals and plants. Many of them can't live anywhere else. They would very likely just disappear.
()1. What does the new study show?
A. It shows that the Amazon Rainforest was once grassland.
B. It shows that the Amazon Rainforest will have fewer trees in the future.
C. It shows that all rainforests can speed up climate change.
D. It shows that people enjoy activities in the Amazon Rainforest.
()2. 新考法·组合选择 How do droughts make the Amazon Rainforest "sick"?
a. They make plants grow more slowly.
b. They cause climate change.
c. They make the trees in the rainforest grow faster.
d. They make it easier for the rainforest to catch fire.
A. ab
B. bc
C. ad
D. cd
()3. What does the writer want to show in the last two paragraphs?
A. The new future of our planet.
B. The reasons for climate change.
C. The lifestyles of different animals.
D. The importance of the Amazon Rainforest.
()4. What is the passage mainly about?
A. Why the Amazon Rainforest is like the lungs.
B. How the Amazon Rainforest is changing.
C. How people look after the Amazon Rainforest.
D. Why the Amazon Rainforest becomes hotter.

由于气候变化和人类活动，亚马逊雨林里大量树木枯死，雨林逐渐消失，将来可能会变成热而干燥的草原。本文介绍了这一情况以及雨林消失将导致的一些不良后果。
1. B 推理判断题。根据第一段中“But a new study shows that the Amazon Rainforest may become grassland in a few years.”可知，研究表明，亚马逊雨林将来可能会变成草原，说明雨林中的树木未来会更少。
2. C 组合选择题。根据第三段中“The trees don't have enough water to grow. What's worse, as they become dry, they can easily catch fire.”可知，干旱导致亚马逊雨林中的树木没有足够的水来生长，而且容易引起火灾。
3. D 推理判断题。根据最后两段内容可知，失去亚马逊雨林的话，地球将会有更多的二氧化碳，而且会变得更热，许多动植物也会失去它们的家园。作者想要通过这两段的内容展示亚马逊雨林的重要性。
4. B 主旨大意题。通读全文可知，本文主要介绍了亚马逊雨林近些年的变化以及未来的变化趋势。