Qomolangma is the world's highest mountain.You may have learned from your textbooks that its height is 8，848 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 remeasure its height on May 6，2020.They were equipped（配備）with the latest technology，including a global navigation satellite system receiver and a radar.
It is not an easy task.The average air temperature on the mountain is -29℃--four degrees lower than that in Antarctica-and powerful winds blow all the time.In such bad conditions，surveying drones（無人機(jī)）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 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（地殼）.
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.
（1）What do we know from the first paragraph？ BB
A．Researchers measure 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.
（2）What challenge would the Chinese survey team face？ CC
A．A lack of water.
B．Dangerous animals.
C．Unfriendly weather conditions.
D．The movement of Earth's crust.
（3）What is the main idea of the fifth paragraph？ AA
A．Why measuring the height of Qomolangma is important.
B．What is the change in Qomolangma's peak.
C．How Qomolangma became the highest mountain.
D．How plate movements have affected the height of Qomolangma.
（4）Which of the following might be the best title of the passage？ CC
A．The growing Qomolangma.
B．Different opinions on Qomolangma.
C．Remeasuring the world's highest peak.
D．People who climbed the highest peak.
【答案】B；C；A；C
【解答】
【點(diǎn)評】
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發(fā)布：2024/12/27 8:30:1組卷：12引用：3難度：0.7
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