2026年作业本浙江教育出版社八年级英语下册人教版第32页答案
D
①China has started building the world's biggest hydropower plant (水电站) on the Yarlung Zangbo River in Xizang. This amazing project will include five large power stations and can offer enough electricity (电) for over 300 million people.

②The Yarlung Zangbo River is a great choice for this project because it's the highest river in the world. Also, in the project area, the river drops nearly 2,000 metres down the mountains. Such a big drop creates perfect conditions for making electricity. The power produced will not only be used in Xizang but also sent to other parts of China, helping power homes, schools, and factories there.
③However, building this huge project comes with many challenges. For example, workers will need over 40 million tons of cement (水泥) —that's enough to build many large cities! What's more, the ground in the area is soft and wet, so engineers must make it stronger to support the heavy structures. Besides, since the project is located far from cities, new roads and railways are being built to carry all the necessary materials and tools.
④Hydropower plays a key role in China's clean energy future. However, some people in neighbouring countries have expressed their concerns about the water supply. Experts explain that hydropower stations don't actually use up water. Instead, the water simply passes through the stations to make electricity and then continues flowing down the river. So the real water flow mainly depends on rainfall and other rivers.
⑤All in all, this great project will not only offer clean energy but also create lots of jobs for local people and improve business in southwest China. It marks a big step forward in using resources (资源) wisely while protecting our environment.
(
B
)27. Why was the Yarlung Zangbo River chosen for this hydropower project?
A. Because it is the longest river in Asia.
B. Because there is a 2,000 - metre height drop.
C. Because there are five large power stations.
D. Because it is in Xizang and near other parts of China.
(
A
)28. What is the main purpose of the third paragraph?
A. To explain the difficulties in the project.
B. To describe the amount of cement needed.
C. To tell engineers' hard work of building it.
D. To introduce the new roads and railways built.
(
B
)29. What does the underlined word "concerns" mean in Paragraph 4?
A. Hopes.
B. Worries.
C. Preferences.
D. Plans.
(
C
)30. What is the passage mainly about?
A. Life of people in Xizang.
B. How to build a power station.
C. China's new big hydropower project.
D. Water problems in neighbouring countries.

答案

27. B 28. A 29. B 30. C

解析

【解析】
27. 根据文章第②段"Also, in the project area, the river drops nearly 2,000 metres down the mountains. Such a big drop creates perfect conditions for making electricity."可知,雅鲁藏布江被选作项目选址是因为河段落差近2000米,具备发电的绝佳条件,故选B。
28. 文章第③段开头指出"building this huge project comes with many challenges",随后通过举例具体说明项目建设面临的各类难题,所以该段主要目的是解释项目建设的困难,故选A。
29. 结合第④段语境,邻国部分民众对供水问题表达了"concerns",后文专家解释水电站不会消耗水资源,可推测"concerns"意为"担忧",与Worries意思相近,故选B。
30. 文章从项目启动、选址原因、建设挑战、相关争议及项目意义等方面,围绕中国在雅鲁藏布江上建设的大型水电站项目展开介绍,故选C。
【答案】
27. B;28. A;29. B;30. C
【知识点】
阅读理解细节理解;词义猜测;主旨大意
【点评】
本文围绕中国在雅鲁藏布江建设的大型水电站项目展开,考查学生对文章细节的捕捉、词义的推测以及主旨的把握能力,需结合文章语境逐一分析选项。
【难度系数】
0.6