《2025年轻松作业本八年级英语上册译林版》

五、阅读理解。
Mount Qomolangma(珠穆朗玛峰) is facing a big risk from human activity. Both climate change and microplastics(微塑料) are polluting the mountain and causing its ice to melt, scientists say.
A recent study found that Qomolangma is full of microplastics, which have caused lots of pollution. They are usually less than 5mm in size. They can be found in many things, including the clothing, bags and ropes that are left behind by climbers. Microplastics take thousands of years to break down on their own. They are already known for posing a danger to sea animals.
Global warming is also affecting the mountain, as well as its climbers. Another study finds that the glaciers(冰川) around Qomolangma have thinned by more than 100 metres since the 1960s. As the ice melts, cracks(裂缝) in the ice are becoming deeper and more dangerous, posing a risk to those who try to climb the mountain, according to Global News.
Landslides(滑坡) are also becoming more likely. There are many parts of the mountain that are held together by just frozen rocks or permafrost(永久冻土), according to Professor Joseph Shea at the University of Northern British Columbia, Canada. When this permafrost melts, the risk of dangerous landslides goes up.
(A)1. What do we know about microplastics?
A. They are less than 5mm in size.
B. They can hardly be found in many things.
C. They break down easily.
D. They are harmless to sea animals.
(C)2. Why is microplastic pollution on the mountain caused?
A. By ocean pollution.
B. By melting ice.
C. By climbers.
D. By industrial waste.
(D)3. What does the global warming affect?
A. The mountain.
B. The climbers.
C. The local economy.
D. A and B
(B)4. Why is it more dangerous to climb the mountain now?
a. Because cracks in the ice have become deeper.
b. Because the glaciers are thicker.
c. Because landslides are more likely to happen.
d. Because Mount Qomolangma is facing some risks.
A. ab
B. ac
C. bc
D. cd

答案： 1. A 2. C 3. D 4. B