According to a new study，the Amazon rainforest may become grassland in a few years.
The Amazon is the world's biggest rainforest.Climate change（氣候變化） 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 a hot，dry grassland.
Why is the Amazon"sick"？
The Amazon is one of the world's wettest places.But since 2005，three droughts（干旱） have hit the rainforest.
What will happen if we lose it？
The Amazon is like the lungs（肺） of our planet.The rich plants there take CO2 out of the air and make oxygen.They make more than 20 percent of the planet's oxygen.If the Amazon "dies"，there will be more CO2 and our Earth will become even hotter.
The Amazon is also home to over 3 million animals and plants.Many of them can't live anywhere else.They would disappear.
Did you know？
The Amazon rainforest is in South America.It covers 5.5 million square kilometers.That's about half the size of China!The Amazon River runs through the rainforest.It's the world's second longest river.The Amazon covers much of Brazil.The green color on the country's national flag means the rainforest.
（1）What does the new study show？ CC
A.The Amazon rainforest was once grassland.
B.Rainforests grow better with climate change.
C.The Amazon will have fewer trees in the future.
D.Many people enjoy activities in the Amazon rainforest.
（2）What does the underlined word"disappear"in the text mean？ AA
A.be gone
B.stay useful
C.become hotter
D.come back to life
（3）Why is the Amazon called "the lungs"of Earth？ BB
A.Because it is the coolest place on Earth.
B.Because it makes over one-fifth of Earth's oxygen.
C.Because it is home to over 3 million animals and plants.
D.Because people and animals can breathe more easily there.
（4）What does the writer want to show with the last two paragraphs？ BB
A.The future of our planet.
B.The importance of the Amazon.
C.The problem of climate change.
D.The reason for animals to live in the Amazon.
【考點(diǎn)】說(shuō)明文；環(huán)境保護(hù)．
【答案】C；A；B；B
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/9/25 5:0:1組卷：13引用：1難度：0.5
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