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Qomolangma is the world’s highest mounta...

    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 with the latest technology. It is not an easy task. The average air temperature on the mountain is-29-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 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 (欧亚板块) 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 (青藏高原).

1.Which statement is true according to 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 easy to measure the height of Qomolangma.

D.The height of Qomolangma increases every year.

2.Which of the following words could replace “peak” in Paragraph 2?

A.point B.top C.base D.edge

3.What challenge will the Chinese survey team face?

A.A lack of water. B.Dangerous animals.

C.Bad weather conditions. D.The movement of Earth’s crust.

4.What is the main idea of the last two paragraphs?

A.Why measuring the height of Qomolangma is important.

B.What is the height of Qomolangma.

C.How Qomolangma became the highest mountain.

D.How plate movements have affected the height of Qomolangma.

 

1.B 2.B 3.C 4.A 【解析】 这是一篇说明文。文章讲述了珠穆朗玛峰的高度会随时间而变化,重新测量它的高度很难,但助于我们了解地壳的运动气候变化对青藏高原的影响。 1. 细节理解题。根据第一段的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.可知,可能从课本上知道它的高度是8844米。但并非所有方都同意这一点。不同的研究者有不同的结果。珠穆朗玛峰的高度会随时间而变化。由此可以推断出,目前珠穆朗玛峰的高度还没有统一的标准。故选B。 2. 词义猜测题。根据第二段的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. 可知, 5月6日,一个30人组成的中国调查队开始登上珠穆朗玛峰,重新测量珠穆朗玛峰的高度。又因In such bad conditions, surveying drones (无人机) cannot work at the peak of the mountain.可知,在这种恶劣的条件下,测量无人机无法在山顶上工作。由此可以看出,是为了测量珠穆朗玛峰的高度,所以应该是无法在山顶(top)工作符合题意,故选B。 3. 细节理解题。根据第二段的The average air temperature on the mountain is-29℃-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.可知,这座山的平均气温是-29摄氏度,比南极洲低-4度,而且一直刮着强风。在这种恶劣的条件下,测量无人机无法在山顶上工作。由此可以推出,中国调查队在测量时遇到的困难是恶劣的气候条件。故选C。 4. 主旨大意题。根据倒数第二段的In fact, measuring the height of Qomolangma is about more than just getting one exact number. 可知,测量珠穆朗玛峰的高度不仅仅是得到一个精确的数字。根据This can help us understand the movement of Earth’ s crust (地壳).可知,这有助于我们了解地壳的运动。又因最后一段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 (青藏高原).可知,调查队还将获得有关山顶环境状况的第一手资料。这将有助于我们了解气候变化对青藏高原的影响。由此可以推出,这两段是在说明测量珠穆朗玛峰的价值和重要性,也就是测量珠穆朗玛峰的高度很重要。故选A
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