Unit 1 The Changing World Section A (2a～3d) 同步训练 2026-2027学年英语人教版九年级上册

**基本信息** Unit 1 The Changing World Section A (2a~3d) 分层训练（人教版九年级上册新授课同步练），以"基础夯实-能力进阶"分层设计构建词汇→句型→语篇的知识巩固路径，助力语言能力与思维品质提升。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础达标|核心词汇（人口、污染等）、基础语法（不定式、时态等）|通过单词拼写、词形变化、句型转换夯实单一知识点，如根据汉语提示填单词直接强化单元核心词汇| |能力提升|语篇应用、情境交际|补全对话创设真实调研情境，语篇填空融合词汇语法与逻辑分析，如第二节语篇填空需结合上下文选择连接词，培养综合语言运用能力|

Unit 1 The Changing World Section A (2a~3d) 分层训练 （2026-2027学年人教版九年级上册） 【基础达标】 一、根据汉语提示填写单词 1. The ________ (人口) of this city has reached over 5 million in the past ten years. 2. The number of private cars continues to ________ (增加) quickly, which brings more traffic problems. 3. Air ________ (污染) is one of the most serious challenges we need to face now. 4. It's important for us to find ways to ________ (解决) the water shortage problem. 5. The rapid ________ (发展) of technology has changed our daily life greatly. 二、用所给词的适当形式填空 1. Our teacher taught us how ________ (deal) with the waste in our daily life. 2. The government encourages people ________ (not cut down) too many trees. 3. Watching documentaries makes us ________ (understand) more about the world's changes. 4. It takes years of hard work ________ (improve) the local environment. 5. My uncle ________ (visit) more than 10 cities to study their development so far. 三、根据题后要求做题（每空一词） 1. The government builds more parks to make the city more beautiful. (对画线部分提问) ________ ________ the government build more parks? 2. The factory is reducing the amount of waste it produces. (改为一般疑问句) ________ the factory ________ the amount of waste it produces? 3. The city started the recycling program in 2018. (对画线部分提问) ________ ________ the city start the recycling program? 4. The river looks clean and clear now. (改为否定句) The river ________ ________ clean and clear now. 5. It's important to protect the environment around us. (同义句转换) ________ the environment around us is important. 【能力提升】 四、补全对话 根据下面的对话情景，在每个空白处填入一个合适的句子，使对话的意思连贯、完整。 A: Hi, Li Jun! You're looking at some reports carefully. 1. ________? B: I'm doing a survey about the changes in our city over the past five years. A: Changes in our city? That sounds interesting. B: Yeah. But when I first started, 2. ________ to collect enough data. Luckily, my teacher gave me a lot of help. A: 3. ________? B: My geography teacher. He has studied urban development for many years. A: 4. ________? B: I spend about two hours on this survey every weekend. A: That's really meaningful! 5. ________? B: Of course! You can help me interview some local residents tomorrow. A: Great! I'd love to. 五、语篇填空 第一节 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。 change population pollute solve develop start improve learn because show Our world is going through huge 1. ________. In many countries, the 2. ________ is growing fast, which brings more pressure on resources. Some factories used to 3. ________ the air and water heavily. To tackle these problems, governments have 4. ________ many programs. For example, in our city, they started a tree-planting project three years ago. After years of efforts, the environment has 5. ________ a lot. Many students are interested in 6. ________ about these changes. They join environmental clubs to help 7. ________ the problems. They believe it's necessary 8. ________ a green lifestyle 9. ________ it can help protect the earth. These activities also 10. ________ that everyone can make a difference. 第二节 阅读短文，根据语篇要求填空，使短文通顺、意思完整，每空限填一词。 Many people are worried about the changing world. For Mike, studying urban development is more than a task—it's a way to find solutions. He spends time on research every day 1. ________ he wants to help build better cities. Lucy used to think environmental problems were too hard to solve. 2. ________ her teacher's guidance, she joined an environmental group. Now she works with others to clean up the local rivers. Tom has been interested in technology since he was ten. 3. ________ then, he has learned a lot about how technology influences our lives. Each new invention is amazing to him. These efforts not only help people understand the world 4. ________ also inspire them to take action. No matter what you do, 5. ________ you keep trying, you will make the world a better place. 参考答案 【基础达标】 一、 1. population 2. increase 3. pollution 4. solve 5. development 二、 1. to deal 2. not to cut down 3. understand 4. to improve 5. has visited 三、 1. Why does 2. Is; reducing 3. When did 4. doesn't look 5. Protecting 【能力提升】 四、 1. What are you doing 2. it was really difficult 3. Who helped you with this survey 4. How long do you spend on this survey every weekend 5. Can I join you in this survey 五、 第一节 1. changes 2. population 3. pollute 4. started 5. improved 6. learning 7. solve 8. to develop 9. because 10. show 第二节 1. because 2. With 3. Since 4. but 5. if 学科网（北京）股份有限公司 $