Unit4知识点-Vocabulary in use练习 2025-2026学年人教版八年级英语上册

八年级英语上册Unit4知识点-Vocabulary in use练习 小试牛刀 A. 选出每组中不同类的一个词，并写出理由。 1. habit height size weight 不同类的是 __________，理由：________________________ 2. joy happiness fun enjoy 不同类的是 __________，理由：________________________ 3. angry disappointed smart sad 不同类的是 __________，理由：________________________ 4. appear look seem watch 不同类的是 __________，理由：________________________ 5. honey milk juice bread 不同类的是 __________，理由：________________________ B. 用所给动词或形容词加上后缀 -ance, -tion, -ness 或 -ity 构成名词，完成句子。 1. act → __________ 2. good → __________ 3. kind → __________ 4. appear → __________ 5. real → __________ 6. imagine → __________ 7. connect → __________ 8. popular → __________ 9. communicate → __________ 10. important → __________ C. 句型转换（改为一般疑问句并作肯定或否定回答） 1. Frogs play an important role in the ecosystem. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 2. You can store food in bamboo baskets. 一般疑问句：_________________________________________________ 肯定回答：_________________ 否定回答：_________________ 3. The mushrooms appeared after the rain. 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. I felt ______ when my favourite flowers died. A. disappointed B. happy C. excited D. bored 2. After the rain, some mushrooms ______ in the garden. A. appeared B. looked C. seemed D. watched 3. In my hometown, people often use bamboo baskets to ______ food. A. store B. sell C. eat D. cook 4. What did you put in your luggage? It ______ a ton. A. weighs B. will weigh C. weight D. weighted 5. I can’t ______ my life without my pets. They mean a lot to me. A. imagine B. image C. imagination D. imaginary B. 完成句子（★★） 用括号内单词的正确形式填空。 1. You may not realize it, but frogs play an important role in our __________ (planet) ecosystem. 2. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human __________ (hand). 3. Many people know that frogs help to __________ (protection) farms by eating insects. 4. __________ (however), not everyone understands their importance in nature. 5. Frogs can live on __________ (land) and in water. 拓展思考 写一段话（至少5句）介绍青蛙在生态系统中的作用。使用 play an important role, protect farms, eat insects, live on land and in water, important in studies 等表达。 _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ 参考答案与解析 小试牛刀 A 1. habit (其他三项是测量尺寸的维度) 2. enjoy (其他三项是名词，enjoy是动词) 3. smart (其他三项是负面情绪形容词) 4. watch (其他三项是“看起来/似乎”，watch是“观看”) 5. bread (其他三项是液体饮料) 小试牛刀 B 1. action 2. goodness 3. kindness 4. appearance 5. reality 6. imagination 7. connection 8. popularity 9. communication 10. importance 小试牛刀 C 1. Do frogs play an important role in the ecosystem? Yes, they do. / No, they don’t. 2. Can you store food in bamboo baskets? Yes, I can. / No, I can't. 3. Did the mushrooms appear after the rain? Yes, they did. / No, they didn’t. 配套练习 A 1. A 2. A 3. A 4. A 5. A 配套练习 B 1. planet’s 2. hand 3. protect 4. However 5. land 拓展思考（示例） Frogs play an important role in our ecosystem. They help protect farms by eating insects like mosquitoes and flies. Without frogs, the number of harmful insects would increase. Frogs can live both on land and in water, which makes them useful for studies on climate change. Scientists can learn about the health of the environment by watching frogs. Because their skin is very sensitive, changes in the environment affect them easily. That’s why frogs are called indicator species. We should protect frogs and their habitats. They are small but very important for nature. 1 学科网（北京）股份有限公司 $