2026年新课程新教材导航学八年级英语下册外研版第100页答案
一、阅读理解
第一节 阅读下面语言材料,从每题所给的 A、B、C、D 四个选项中选出最佳选项。
A
The Three Gorges Dam, lying on the Yangtze River in Hubei Province, is one of the largest and most amazing engineering projects in the world. It stands proudly among the beautiful mountains of Xiling Gorge, showing the wisdom and hard work of the Chinese people.
The Yangtze River, China's longest river, often caused serious floods in the past, bringing disasters to millions of people. To solve it and create clean energy, the Chinese government decided to build a huge dam. People began to build the Three Gorges Dam in 1994. And it took about 15 years to complete it. Thousands of workers used modern machines and technology to make this dream come true.
It has greatly reduced flood risks, protecting cities and farmlands. The dam's power stations produce clean electricity for millions of homes and factories, helping reduce air pollution. Its communicating vessel system helps ships pass. Ships enter a lock, and gates close. The water level inside the lock rises or falls to match the next section. When the water levels become the same, gates open, and the ship moves to the next lock.
The Three Gorges Dam is not just a dam, but also a symbol of Chinese courage and creativity. Visitors from around the world come to see this modern wonder. Students learn about its scientific achievements and the spirit of teamwork behind it. The dam teaches us that with determination, humans can overcome even the most difficult challenges of nature.
1. What does the underlined word "it" in Paragraph 2 refer to?
A. The Yangtze River.
B. The clean energy.
C. The Yangtze River often caused serious floods.
D. A huge dam.
2. When was the Three Gorges Dam completed?
A. In 1994. B. In 1998. C. In 2009. D. In 2003.
3. Which of the following can be put in ▲ in Paragraph 3?
A. However, every coin has two sides.
B. Today, the Three Gorges Dam plays a key role in China.
C. The Three Gorges Dam also has many disadvantages.
D. The Three Gorges Dam has a great effect on climate change.
4. What's the writer's main purpose of writing the passage?
A. To list the Three Gorges Dam's benefits to society.
B. To praise Chinese people's wisdom and creativity.
C. To explain why Chinese people built the Three Gorges Dam.
D. To describe challenges in building the Three Gorges Dam.

答案

1.C 2.C 3.B 4.B

解析

【分析】
本题为英语阅读理解题,包含代词指代、细节查找、句子还原、主旨大意四类题型,需结合原文内容逐一分析:
1. 代词指代题:需联系it所在句的上下文,前文提到长江过去常引发洪水带来灾难,政府建坝是为解决该问题,故it指代“长江常引发严重洪水这件事”;
2. 细节查找题:需定位建造时间的相关描述,计算完成时间;
3. 句子还原题:需结合段落主旨(介绍大坝的积极作用),选择承上启下的句子;
4. 主旨大意题:需梳理全文核心,结合最后一段的总结性表述判断写作目的。
【解析】
1. 代词指代:第二段前半句指出“The Yangtze River...often caused serious floods in the past, bringing disasters to millions of people”,后半句“To solve it...”中it指代前文提到的“长江常引发严重洪水(这件事)”,对应选项C;
2. 细节查找:第二段明确“People began to build the Three Gorges Dam in 1994. And it took about 15 years to complete it”,计算得1994+15=2009,对应选项C;
3. 句子还原:第三段主要介绍三峡大坝的积极作用(减少洪水风险、发电、通航),A项强调事物两面性、C项提及缺点、D项涉及气候影响均不符合段落主旨,B项“Today, the Three Gorges Dam plays a key role in China”承上启下,符合语境,对应选项B;
4. 主旨大意:全文介绍三峡大坝的地位、建造原因与作用,最后一段指出其是“symbol of Chinese courage and creativity”,核心目的是赞扬中国人民的智慧与创造力,对应选项B。
【答案】
1.C 2.C 3.B 4.B
【知识点】
英语阅读理解、细节理解题、主旨大意题
【点评】
本题围绕三峡大坝展开,涵盖英语阅读理解中常见的基础题型,重点考查学生对原文细节的定位能力、逻辑推理能力与主旨概括能力,整体难度适中,只要认真阅读原文、精准定位关键信息即可正确解答。
【难度系数】
0.6