Desertification (荒漠化) is a difficult problem for the whole world. For many years, Chinese scientists have had rich experience in dealing with desertification in Northwest China. Now they are working to help African countries turn their sandy areas into green ones.

China has made great progress through hard work, though it is seriously influenced by desertification. Until November 2024, China built a long wall of trees, which caught the world’s attention. It is 3,046 km long! And China has created 32 million hectares (公顷) of new forest.

Chinese scientists shared the technologies with Mauritania, an African country. They introduced different kinds of plants from China and used straw checkerboards to stop sand from moving. They developed new ways to save water for farming. Smart technologies such as robots, drones and sand-blocking systems (阻沙系统) driven by solar panels also helped a lot.

The China-Africa Green Technology Park was built in Mauritania. In 2024, the park was an empty land swept by wind and sand. Just one year later, there were grasses, fruits and vegetables. Wang Yongdong, a senior engineer from China, said, “The goal of the park is not only to protect the environment but also to help local people.” So far, China has trained 45 skilled workers and created 120 jobs for the local community.

The Mauritanian environment minister (部长) described China as a “very important partner”. To help African countries, Chinese scientists have overcome many difficulties. As a key member fighting against desertification in the world, China promises to keep working and make bigger efforts. Wang said, “We are a community with a shared future. We hope our efforts will show this spirit.”

1.1. What’s the main idea of paragraph 2?

A The ways of planting trees in China.

B The problems of desertification in China.

C The reason why China helps African countries.

D The progress China has made in fighting against desertification.

解析：选D。1.答案：D｜题型：段落主旨题 解析：第二段首句 “China has made great progress through hard work” 为本段中心句，介绍中国在荒漠化治理方面取得的成就。A 植树方法；B 荒漠化问题；C 援助非洲的原因，均不符合本段。

2.2. How did Chinese scientists help Mauritania according to paragraph 3? a. By introducing different kinds of plants. b. By using straw checkerboards. c. By developing a wind power system. d. By using robots and drones.

A a, b, c

B a, b, d

C b, c, d

D a, c, d

解析：选B。答案：B｜题型：细节理解题 解析：原文第 3 段：a 引进多种植物；b 使用草方格；d 使用机器人、无人机；c 风力系统文中没有提到，故选 a,b,d。

3.3. Why was the China-Africa Green Technology Park built?

A To train skilled workers for China.

B To build a robot factory for the local community.

C To protect the environment and help local people.

D To teach more local people how to make solar panels.

解析：选C。3.答案：C｜题型：细节理解题 解析：原文第 4 段 “The goal of the park is not only to protect the environment but also to help local people.”，目标是保护环境并帮助当地人。

4.4. Where is the text probably from?

A A science magazine.

B A health guide.

C An English dictionary.

D A travel diary.

解析：选A。4.答案：A｜题型：文章出处推断题 解析：文章介绍荒漠化治理的科技与国际合作，属于科普内容，最可能出自科学杂志。B 健康指南；C 英语词典；D 旅行日记，均排除。

5.5. What will China probably do for African countries in the future according to paragraph 5? A. Build some schools for them. B. Help them with space development. C. Offer free fruits and vegetables to them. D. Continue to help them fight against desertification.

A Build some schools for them.

B Help them with space development.

C Offer free fruits and vegetables to them.

D Continue to help them fight against desertification.

解析：选D。答案：D｜题型：推理判断题 解析：原文第 5 段 “China promises to keep working and make bigger efforts”，中国承诺继续努力，持续帮助非洲治理荒漠化。A 建学校；B 太空开发；C 免费提供果蔬，文中未提及。