B
On a cold day in winter, a 13-year-old boy, living in Qinghai Province, was heading down a mountaintop with his family. Suddenly, they saw two snow leopards (雪豹) near the Lancang River. “I see them for the first time. They look so cool!” he said.
Since the mid-20th century, the area of snow, grasslands and lakes in Sanjiangyuan has become smaller because of climate change and human activities. Many wild animals in the area have died out. Snow leopards are endangered.
Later, China set up Sanjiangyuan Nature Reserve (保护区) to better protect the area and the wildlife there. In these years, the number of wild animals has been increasing. More than 70,000 Tibetan antelopes (藏羚羊) live there now. And over 1,000 snow leopards can be found in the area. It’s higher than the average number around the world.
The local people have improved their understanding about environmental protection and have tried hard to protect the environment in Sanjiangyuan over the years. They still live on selling caterpillar fungus (冬虫夏草) they’ve found in grasslands. In the past, they carried food with them in plastic bags and left the bags and food waste behind. But now the local people have realized they should live together with nature in harmony. They often pick up waste on the grasslands. People also take their plastic bags and food waste down the mountain after eating. The local environment has taken on a new look. Many young people there said, “We will continue to guard our home and make it more beautiful.”
16. What can we know from paragraph 1 and paragraph 2?
A. Snow leopards are in danger.
B. A boy raised two snow leopards at home.
C. Two snow leopards first appeared near the Yellow River.
D. The grasslands and lakes in Sanjiangyuan have disappeared.
17. Why did China build Sanjiangyuan Nature Reserve?
A. To develop the local tourist industry.
B. To improve the natural environment.
C. To provide a home for more people.
D. To find the source of three rivers.
18. The local people in Sanjiangyuan has changed their way of ________.
A. making a living
B. crossing the grasslands
C. carrying food with them
D. dealing with waste
19. What does the underlined word “harmony” mean?
A. 智慧
B. 和谐
C. 伤害
D. 忠诚
20. What can we infer from the passage?
A. The local people won’t sell caterpillar fungus any more.
B. Many young people choose to leave Sanjiangyuan.
C. The future of Sanjiangyuan Nature Reserve will be better and better.
D. The number of Tibetan antelopes in Sanjiangyuan is the smallest.
答案解析：
16. 答案：A
解析：
• 第一段描述了男孩看到雪豹的情景。
• 第二段提到“Since the mid - 20th century...Snow leopards are endangered.”，明确说明了由于气候变化和人类活动，三江源地区很多野生动物灭绝，雪豹处于濒危状态，所以A选项正确。
• B选项，文中没有提到男孩在家养雪豹。
• C选项，雪豹是出现在澜沧江附近，不是黄河附近。
• D选项，文中说的是草地和湖泊面积变小，不是消失。
17. 答案：B
解析：
• 根据第三段“Later, China set up Sanjiangyuan Nature Reserve (保护区) to better protect the area and the wildlife there.”可知，建立保护区是为了更好地保护该地区和那里的野生动物，也就是为了改善自然环境，B选项正确。
• A选项，文中未提及建立保护区是为了发展旅游业。
• C选项，不是为了给人提供住所。
• D选项，没有提及寻找三江源头相关内容。
18. 答案：D
解析：
• 文中提到“In the past, they carried food with them in plastic bags and left the bags and food waste behind. But now the local people have realized they should live together with nature in harmony. They often pick up waste on the grasslands. People also take their plastic bags and food waste down the mountain after eating.”，过去他们随意丢弃垃圾，现在会捡起垃圾并且带走垃圾，这是他们处理垃圾方式的改变，所以D选项正确。
• A选项，他们仍然靠卖冬虫夏草为生，没有改变谋生方式。
• B选项，文中未提及穿越草原方式的改变。
• C选项，携带食物的方式不是重点改变的内容，重点是对垃圾的处理方式。
19. 答案：B
解析：
• 根据前文“But now the local people have realized they should live together with nature...”以及后面描述他们保护环境的行为，如捡垃圾、带走垃圾等，可以推断出“harmony”在这里是“和谐”的意思，即与自然和谐共处，B选项正确。
20. 答案：C
解析：
• A选项，文中提到他们仍然靠卖冬虫夏草为生，所以不是不再售卖。
• B选项，文中说许多年轻人要继续守护家园，不是离开。
• C选项，从“Many young people there said, ‘We will continue to guard our home and make it more beautiful.’”以及前面提到环境改善和野生动物数量增加等内容，可以推断出三江源自然保护区的未来会越来越好，C选项正确。
• D选项，文中没有提及三江源藏羚羊数量是最少的相关内容。
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