Unit 4 Amazing Plants and AnimalsVocabulary in Use分层练习2026-2027学年人教版英语八年级上册

**基本信息** 本同步练以“Vocabulary in Use”为核心，分层设计清晰，从词汇基础到语篇综合，构建“识别-应用-迁移”的知识巩固路径，适配新授课语言能力培养与思维品质提升需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心词汇（首字母填空、短语默写）、基础句型（单项选择）|通过首字母提示、中文释义强化Unit 4核心词汇（如role, weigh），单选聚焦介词（except）、最高级（largest）等基础语法点| |进阶层|语法应用（完成句子、语法填空）、句型转换|完成句子整合词汇与句型（如live up to），语法填空训练形容词最高级变形，句型转换提升句式灵活运用能力| |综合层|语篇理解（阅读理解）、语言输出（写作）|阅读短文融合事实细节与推理判断，写作要求用最高级描述动物并阐述保护意义，实现知识迁移与跨文化意识培养|

2026-2027学年人教版八年级上 Unit 4 Amazing Plants and Animals Vocabulary in Use · 分层练习 一、根据句意及首字母提示写单词 1. Blue whales play an important r______ in the ecosystem. 2. A blue whale can w______ as much as 200 tons. 3. Many people think watching blue whales swim is one of the most b______ things to see. 4. Blue whales live in the o______ except the Arctic Ocean. 5. When a blue whale dies at sea, it becomes food for many kinds of a______. 二、根据中文提示写出对应的英文短语 1. 在生态系统中发挥着重要作用 ____________ 2. 重达200吨 ____________ 3. 除北冰洋之外 ____________ 4. 寿命可达90年 ____________ 5. 创造一个生机勃勃的生态系统 ____________ 三、单项选择 ( ) 1. The blue whale is the ______ and heaviest animal on earth. A. large   B. larger   C. largest   D. most large ( ) 2. Blue whales live in all oceans ______ the Arctic Ocean. A. except   B. besides   C. including   D. with ( ) 3. A blue whale can eat around four tons ______ these a day. A. in   B. of   C. for   D. with ( ) 4. I can't imagine my life ______ my pets. A. with   B. for   C. without   D. of ( ) 5. The smallest frogs are about the size ______ a pea. A. in   B. on   C. for   D. of 四、完成句子（根据汉语提示完成英文句子，每空一词） 1. 蓝鲸是地球上最重的动物。 The blue whale is the ______ animal on earth. 2. 蓝鲸生活在除北冰洋以外的所有海洋中。 Blue whales live in all oceans ______ the ______ Ocean. 3. 蓝鲸可以活到90岁。 Blue whales can ______ up ______ 90 years. 4. 它们每天可以吃掉大约四吨磷虾。 They can eat around four ______ of ______ a day. 5. 青蛙在生态系统中扮演着重要角色。 Frogs play an ______ ______ in the ecosystem. 五、阅读短文，用括号内所给词的正确形式填空 Blue whales are the 1. ______ (large) and 2. ______ (heavy) animals on earth. They can weigh up to 200 tons. Many people think they are one of 3. ______ (beautiful) things to see. Blue whales live in all oceans 4. ______ (except) the Arctic Ocean. They eat some of 5. ______ (tiny) animals in the ocean. They can live up to 90 years. When a blue whale dies, it 6. ______ (help) create a lively ecosystem. 六、句型转换（按要求改写句子，每空一词） 1. Blue whales live in all oceans except the Arctic Ocean.（改为否定句） Blue whales ______ ______ in all oceans except the Arctic Ocean. 2. They eat some of the tiniest animals.（对划线部分提问） ______ ______ they eat? 3.  Blue whales can live up to 90 years.（对划线部分提问） ______ ______ can blue whales live up to? 4. Many people like watching blue whales swim.（对划线部分 watching blue whales swim 提问，每空一词） ______ ______ many people like? 七、阅读理解（阅读短文，从每题所给的A、B、C、D四个选项中选出最佳选项） Amazing Facts About Blue Whales The blue whale is the largest animal on Earth. It can weigh as much as 200 tons, which is heavier than the heaviest dinosaur. Its tongue alone can weigh as much as an elephant. The blue whale's heart is the size of a small car, and some of its blood vessels are so wide that a person could swim through them. Blue whales are not fish—they are mammals. They breathe air through blowholes on top of their heads. They can hold their breath for up to 20 minutes before coming to the surface for air. Despite their huge size, blue whales are very graceful swimmers. They can swim at speeds of over 30 km/h when they need to. Blue whales eat mostly tiny shrimp-like animals called krill. A single adult blue whale can eat up to 4 tons of krill in one day. During the summer feeding season, they eat a lot to build up fat for the winter when food is scarce. Unfortunately, blue whales are endangered. There used to be over 200,000 blue whales in the world, but now there are only about 10,000 to 25,000 left. Hunting and climate change are the main reasons. Many organizations are working hard to protect them. ( ) 1. How much can a blue whale weigh? A. About 20 tons.   B. Up to 200 tons.   C. About 4 tons.   D. About 90 tons. ( ) 2. What does the underlined word "graceful" in Paragraph 2 probably mean? A. 笨重的   B. 优雅的   C. 缓慢的   D. 胆小的 ( ) 3. What do blue whales mainly eat? A. Fish.   B. Plants.   C. Krill.   D. Plankton. ( ) 4. How many blue whales are there in the world now? A. Over 200,000.   B. About 10,000 to 25,000.   C. About 25,000 to 50,000.   D. Over 100,000. ( ) 5. What is the main purpose of the passage? A. To tell people how to hunt blue whales.   B. To introduce facts about blue whales and the need to protect them.   C. To describe how blue whales swim.   D. To explain why blue whales eat krill. 八、写作 题目： 请根据以下提示，写一篇短文介绍一种你喜欢的动物（如熊猫、大象、长颈鹿等）。 • 基本描述（大小、重量、颜色等） • 生活习性（吃什么、住在哪里等） • 为什么这种动物很重要或很特别 • 我们应该如何保护它们 要求：词数70词左右；使用至少两个最高级形式（如 the largest, the most beautiful 等）。 请在此作答： My Favourite Animal ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ 参考答案 一、首字母填空 1. role   2. weigh   3. beautiful   4. ocean    5. animals 二、短语默写 1. play an important role in the ecosystem 2. weigh as much as 200 tons 3. except the Arctic Ocean 4. live up to 90 years 5. create a lively ecosystem 三、单项选择 1. C   2. A   3. B   4. C   5. D 四、完成句子 1. heaviest   2. except; Arctic   3. live; to 4. tons; krill  5. important role 五、语法填空 1. largest   2. heaviest   3. the most beautiful 4. except   5. the tiniest   6. helps 六、句型转换 1. don't live   2. What do   3. How long    4. What do  七、阅读理解 1. B   2. B   3. C   4. B   5. B 八、写作（参考范文） My favourite animal is the elephant. It is the largest land animal on Earth. Elephants can weigh up to 6 tons and stand over 3 meters tall. They have big ears and long trunks. They eat grass, leaves, and fruit. Elephants are very intelligent and have good memories. They live in groups and take care of each other. However, elephants are in danger because people hunt them for their ivory. We must stop hunting and protect their homes. I think elephants are the most amazing animals. We should do our best to protect them. 学科网（北京）股份有限公司 $