为何要再次给珠峰“量身高”？ | TEENS好文精选
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今天的精选文章“How tall can it be?为何要再次给珠峰“量身高”？”来自《21世纪学生英文报·初二》第700期6版。
How tall can it be?
为何要再次给珠峰“量身高”？
Qomolangma is the world’s highest mountain. You may have learned from your textbooks that its height is 8,844 meters. But not all sides are in agreement on this. Different researchers have given different results. In addition, the height of the mountain can change over time.
That’s why a 30-member Chinese survey team set out to reach the peak of Qomolangma to re-measure its height on May 6. They are equipped (配备) with the latest technology, including a global navigation satellite system receiver (接收器) and a radar (雷达).
It is not an easy task. The average air temperature on the mountain is -29 C – four degrees lower than in Antarctica – and powerful winds blow all the time. In such bad conditions, surveying drones (无人机) cannot work at the peak of the mountain. That’s why it’s still necessary to send human experts to the peak to get reliable (可靠的) results.
But does a difference of a few meters really matter when it comes to a high mountain?
In fact, measuring the height of Qomolangma is about more than just getting one exact number. Mount Qomolangma is at the point where the Eurasian plate (板块) meets the Indian plate. It formed 38 million years ago as the two plates hit each other. Changes in the peak’s height can show whether the two plates are heading toward or away from each other. This can help us understand the movement of Earth’s crust (地壳).
The survey team will also get firsthand information about environmental conditions at the top of the mountain. This will help us understand how climate change has affected the Tibet-Qinghai Plateau.
Did you know?
Mountains can change in several ways over time. They can experience erosion (侵蚀) by rain and wind, as well as landslides (山体滑坡) due to flooding. Some mountains change because of volcanic (火山的) activity. They may also change due to earthquakes and movement of tectonic plates (地壳构造板块).
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Answer the following questions:
阅读测试题：
01
What do we know from the first paragraph?
A.Researchers measures the height of Qomolangma every year.
B.There is no agreed-upon height of Qomolangma at present.
C.It’s not easy to measure the height of Qomolangma.
D.The height of Qomolangma increases every year.
点击空白处查看答案
B
02
Which of the following words could replace “peak” in Paragraph 2?
A. point
B. top
C. base
D. edge
点击空白处查看答案
B
03
What challenge will the Chinese survey team face?
A. A lack of water.
B.Dangerous animals.
C.Unfriendly weather conditions.
D.The movement of Earth’s crust.
点击空白处查看答案
C
04
What is the main idea of the last two paragraphs?
A. Why measuring the height of Qomolangma is important.
B.What changes in the height of Qomolangma’s peak can tell us.
C.How Qomolangma became the highest mountain.
D.How plate movements have affected the height of Qomolangma.
点击空白处查看答案
A
