1. (2021高二下·丽水开学考) 阅读理解

Government in Tibet have denied the permanent(永久的) closure of Mount Qomolangma National Nature Reserve.

The announcement came after a report went viral online claiming the base camp of the world's highest mountain was "permanently closed due to heavy pollution" and caused a universal misunderstanding.

Mount Qomolangma National Nature Reserve was set up in 1988. Covering an area of more than 33, 800 square km, it is home to one of the world's weakest ecosystems.

Kelsang, deputy director of the reserve administration, said ordinary tourists are allowed to visit areas around Rongpo Monastery, almost 5, 000 meters above sea level. As for travelers who have a climbing permit, they can go to the base camp at an altitude of 5, 200 meters. The mountaineering activities have been permitted by the regional forestry department.

To protect the environment surrounding Mount Qomolangma, China carried out three major clean-ups at an altitude of 5, 200 meters and above last spring, collecting eight tonnes of household wastes, human wastes and mountaineering trash. This year, the cleanup will continue, and the remains of mountaineering victims(受害者) at above 8, 000 meters will be centrally dealt with for the first time. Meanwhile, the number of people who stay at the base camp will be kept under 300.

Recently, there are 85 wildlife protectors in the reserve, and 1, 000 herders have part-time jobs going around and cleaning up garbage.

These measures aim to strike a balance between various demands such as environmental protection, local poverty relief, mountaineering and education, said Wang Shen, county chief of Dingri at the mountain foot.

1. （1） Which of the following can replace the underlined words "went viral" in Paragraph 2?

   A . spread wildly B . blocked out C . gave away D . shot up
3. （2） What can we learn according to Kelsang's words about the National Nature Reserve?

   A . Most tourists are allowed to visit the base camp. B . A permit is a must for visitors going to the base camp. C . The mountaineering activities are not allowed these days. D . The areas above 5, 200 meters are open to everyone.
5. （3） Why did the government carry out clean-ups at an altitude of 5, 200 meters and above?

   A . To provide a much easier path for mountaineers. B . To keep mountaineering activities going smoothly. C . To remove the remains of mountaineering victims. D . To protect the environment of Mount Qomolangma.