B
①By Donggu Lake in Central China, Hunan Province, hundreds of bird-watchers watch quietly but excitedly in their hearts. They smile as elegant tundra swans(小天鹅) move smoothly across the water. Every November, the migrating birds gather here from the north to spend the winter here. Some people call Donggu Lake a “five-star hotel” for birds.
②In recent years, big efforts have been made to restore and protect this area. First, the local government created an ecological(生态的) safety zone. Second, local farmers began using fewer chemicals and more natural farming methods. Factories near the lake improved their waste treatment to help keep the water clean, too.
③Chinese scientists and researchers also help by collecting important information. They carefully count the birds, check if they are healthy, and study where they fly. They also test the lake water and the soil regularly to make sure it is clean. All of these data provide the government and other groups with the facts they need to make smart decisions and protect the lake effectively.
④The results show that these actions work well. Tundra swans need very clean water. Since 2019, more than 5,000 tundra swans have chosen to spend winter at the lake each year. Thousands of other birds also join them, including beautiful white cranes(鹤) and grey cranes.
⑤The positive story of Donggu Lake is a strong example of balancing nature’s health with human life. It proves that focused protection can directly fix environmental damage, providing safe homes for animals in danger. As these birds do well, they bring not only natural beauty but also more nature-based tourism, showing that environmental protection and lasting growth can succeed together.
()4. How does the writer start the passage?
A. By telling a story.
B. By listing numbers.
C. By asking a question.
D. By describing a sight.
()5. What does the increase in tundra swan numbers at the lake show?
A. The protection efforts have made a difference.
B. The birds have lost other migrating places.
C. The weather in the area has become colder.
D. The number of bird-watchers would grow, too.
()6. What's the structure of the passage?
A. ①/②/③④⑤
B. ①②/③④/⑤
C. ①/②③/④/⑤
D. ①②③/④⑤
()7. What's the best title of the passage?
A. Tundra Swans, the Reason for Tourism Growth
B. Donggu Lake, the Heaven for All Bird-Watchers
C. Tundra Swans, the Symbol of Good Environment
D. Donggu Lake, the Hope of Environmental Protection

4. D
5. A
6. C
7. D

【分析】
本题为英语阅读理解题，需先通读全文梳理各段核心内容，再针对每道题的考点（写作手法、细节理解、文章结构、主旨大意），定位原文对应信息，逐一分析选项正误得出答案。
【解析】
4. 第①段开篇描述了东古湖旁观鸟者及小天鹅在湖面活动的场景，属于描述景象，因此选D。
5. 第④段明确指出“这些保护行动效果好”，小天鹅数量增加正是保护措施见效的直接体现，因此选A。
6. 文章结构划分：①段引入东古湖的鸟类情况；②③段介绍保护的具体措施；④段说明保护措施的结果；⑤段阐述保护的意义，对应结构为①/②③/④/⑤，因此选C。
7. 文章围绕东古湖的生态保护展开，讲述通过保护措施使鸟类增多，体现了环保的成功，D项“东古湖，环保的希望”最贴合全文主旨，因此选D。
【答案】
4.D 5.A 6.C 7.D
【知识点】
阅读理解细节理解、文章结构分析、主旨大意概括
【点评】
本题考查学生对英语阅读理解中写作手法、细节、结构及主旨的理解能力，文本围绕生态保护展开，贴近生活实际，难度适中，需学生准确梳理段落逻辑关系。
【难度系数】
0.5

读后词汇拓展 猜出画波浪线单词的词性和中文意思，并收入自己的小词典。
migrate

v. 迁徙

【分析】本题考查英语词汇的词性与词义，需结合基础英语词汇知识，准确判断单词migrate的词性及对应中文含义，属于词汇积累类基础题目。
【解析】migrate是英语中的动词，常见含义为“迁徙”，属于需日常积累的基础词汇，直接对应其标准释义即可。
【答案】v. 迁徙
【知识点】英语词汇、词性辨析
【点评】本题为基础英语词汇考查，侧重日常词汇积累，难度较低，适合学生进行词汇拓展记忆。
【难度系数】0.3