Unit5知识点-Developing ideas-Listening and speaking练习 2026-2027学年外研版英语九年级上册

**基本信息** 九年级英语上册Unit5同步练通过“小试牛刀-配套练习-拓展思考”三层设计，实现从核心短语、句型到语篇应用的渐进式知识巩固，适配新授课基础夯实与语言能力、思维品质提升需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |小试牛刀|核心短语（如are home to）、基础句型转换|方框短语填空与疑问句转换，强化单一知识点记忆与基础语法应用| |配套练习|单元话题理解（单项选择）、词汇情境运用（完成句子）|以★★区分难度，单项选择聚焦事实理解，完成句子考查词汇在语境中的准确运用| |拓展思考|综合语言输出与创新思维|结合环保主题写作，要求使用指定词汇（如invention、solar panel），提升语篇组织能力与问题解决思维|

九年级英语上册Unit5知识点-Developing ideas-Listening and speaking练习 小试牛刀 A. 选用方框中的短语填空 | is important to | are often called | are home to | are lost | is against the law | 1. The rainforest ecosystem __________ us all. It provides oxygen and helps cool the earth. 2. Rainforests __________ the “lungs of the earth” because they produce so much oxygen. 3. Rainforests __________ more than half of the species on earth. 4. In 2021, about 37,500 square kilometres of rainforests __________. 5. Logging in rainforests __________, but it is hard to notice. B. 句型转换（改为一般疑问句并作肯定或否定回答） 1. Rainforests are important to us all. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 2. Logging is against the law. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 3. Topher’s invention has saved over 2,500 square kilometres of rainforests. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. What are rainforests often called? A. The heart of the earth. B. The lungs of the earth. C. The eyes of the earth. D. The skin of the earth. 2. Why is logging hard to notice in rainforests? A. Because it happens at night. B. Because animal sounds can be louder than cutting sounds. C. Because loggers are very quiet. D. Because there are no people around. 3. What did Topher invent? A. A new type of chainsaw. B. A device that listens for cutting sounds and sends alarms. C. A solar-powered boat. D. A new kind of tree. 4. How does Topher’s invention work? A. It cuts down trees automatically. B. It uses an old phone, a solar panel and a microphone. C. It uses a camera to take photos. D. It uses a drone to fly over the forest. 5. How much rainforest has the invention saved? A. About 37,500 square kilometres. B. Over 2,500 square kilometres. C. 10,000 square kilometres. D. 1 million square kilometres. B. 完成句子（★★） 根据句意内容，用正确的词汇完成句子。 1. 热带雨林是地球上超过一半物种的家园。 Rainforests are __________ to more than __________ of the species on earth. 2. 由于人类活动，热带雨林正在减少。 Rainforests are __________ because of human activity. 3. 农民砍伐树木以便为他们的动物腾出更多空间。 Farmers cut down trees to make more __________ for their animals. 4. 他把发明固定在树上。 He __________ the invention __________ trees. 5. 当它听到砍树的声音时，就会发出警报。 When it __________ the sound of cutting down trees, it __________ an alarm. 拓展思考 写一段话（至少5句）介绍一项保护环境的发明或方法（可以是真实存在的，也可以是你自己想象的）。说明它解决什么问题、如何工作、以及它的效果。使用 is against the law, notice, invention, solar panel, microphone, alarm, save 等表达。 _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. is important to 2. are often called 3. are home to 4. were lost 5. is against the law 小试牛刀 B 1. Are rainforests important to us all? Yes, they are. / No, they aren't. 2. Is logging against the law? Yes, it is. / No, it isn’t. 3. Has Topher's invention saved over 2,500 square kilometres of rainforests? Yes, it has. / No, it hasn’t. 配套练习 A 1. B 2. B 3. B 4. B 5. B 配套练习 B 1. home; half 2. disappearing 3. space 4. fixes; to 5. hears; sends 拓展思考（示例） I want to introduce a simple invention to save water. It is a smart tap that uses a sensor. When you put your hands under it, water comes out. When you move away, it stops. This invention is good because it stops people from wasting water. Many people leave the tap running while brushing their teeth. That is not only wasteful but also harmful to the environment. The smart tap solves this problem. It is easy to install and does not need a battery. It works using a small solar panel. If every home used this tap, we could save millions of litres of water every year. That’s why I think this is a great invention. We should all try to save water. It’s our duty to protect the earth. Let’s start today. Yes, we can. Thank you. That's my idea. I hope you like it. Let’s make it real. Together, we can make a difference. Yes, we can. I believe in us. Thank you. 1 学科网（北京）股份有限公司 $