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人教版八年级上册英语预习学案
从“输入→练习）→输出→复盘”形成完整预习闭环，题型精准、考点贴合、难度适配，可直用于自主预习、课后巩固、课堂小测。
Unit 4 Amazing Plants and Animals
一、单元预习目标
1. 掌握动植物、生态类核心单词、短语，会读、会写、知词义，熟练完成词形转换。
2. 吃透本单元核心语法——形容词、副词最高级，掌握变化规则、核心句型及易错点，能独立完成各类语法题型。
3. 读懂Section A、B课文大意，梳理竹子、银杏、蜜蜂、猎豹、蓝鲸等动植物核心信息。
4. 能用最高级句型简单描述动植物特征，树立保护自然、守护生态的意识。
二、课前自主预习（基础过关）
Task 1 单词预习（标注音标、中文，熟读默写）
Section A 动植物基础词
1. bamboo /b m bu / n. 竹子2. folding / f ld / adj. 可折叠的3. folding fan 折扇4. popular / p pj l (r)/ adj. 受欢迎的5. goodness / ɡ dn s/ n. 美德；美好寓意6. shoot / u t/ n. 嫩芽；竹笋 v. 射击7. moss /m s/ n. 苔藓（不可数）8. redwood / redw d/ n. 红杉9. ginkgo / ɡ kɡ / n. 银杏 10. ancient / e n nt/ adj. 古老的11. common / k m n/ adj. 普通的；常见的12. weigh /we / v. 重……；称重13. kilogram / k l ɡr m/ n. 千克；公斤14. butterfly / b t fla / n. 蝴蝶（复数butterflies）15. wing /w / n. 翅膀16. cheetah / t i t / n. 猎豹17. blue whale 蓝鲸
Section B 生态拓展词
1. bee /bi / n. 蜜蜂2. honey / h ni/ n. 蜂蜜3. pollination / p l ne n/ n. 授粉4. crop /kr p/ n. 农作物5. ecosystem / i k s st m/ n. 生态系统6. connect /k nekt/ v. 连接；关联 7. connection /k nek n/ n. 联系；关联8. pesticide / pest sa d/ n. 杀虫剂9. imagine / m d n/ v. 想象10. disappointed / d s p nt d/ adj. 失望的11. planet / pl n t/ n. 星球；地球12. protect /pr tekt/ v. 保护
词形变形（预习整理）
1. appear v. 出现 → disappear v. 消失 → appearance n. 外貌
2. weigh v. 重 → weight n. 重量
3. connect v. 连接 → connected adj. 相关联的 → connection n. 联系
4. amaze v. 使惊奇 → amazing adj.（修饰物）令人惊奇的 → amazed adj.（修饰人）感到惊奇的
Task 2 核心短语（英汉互译，背诵）
1. one of the + 最高级 + 名词复数 ……中最……之一2. be popular with sb. 受某人喜爱3. a symbol of ……的象征4. folding fan 折扇5. feel free to do sth. 随意做某事6. take a walk 散步7. in fact / actually 事实上；实际 8. stand up to 高达；最高可达9. weigh up to 重达10. be connected with 与……相关联11. play a part/role in 在……中起作用12. without bees 没有蜜蜂13. for this reason 出于这个原因14. be home to 是……的栖息地municate with 与……交流
Task 3 预习自测：单词填空（先独立完成）
1. Bamboo is one of the p______ plants in Chinese paintings.
2. The redwood is one of the t______ trees on Earth.
3. A c______ runs faster than any other land animal.
4. Bees do important p______ for crops and flowers.
5. People, plants and animals are all c______ to each other.
三、语法前置预习（核心：形容词&副词最高级）
1. 核心用法
用于三者及以上人或事物的比较，意为“最……”；形容词最高级前必须加 the；副词最高级前 the 可省略；常用范围标志词：in+范围、of+群体、among+复数名词。
最高级变化规则
单词类型 变化规则 例词
一般单音节词 词尾加-est tall→tallest；fast→fastest
不发音e结尾 加-st large→largest；nice→nicest
辅音+y结尾 变y为i，加-est heavy→heaviest；busy→busiest
重读闭音节（辅+元+辅） 双写尾辅音+est big→biggest；hot→hottest
多音节/部分双音节词 前加most beautiful→most beautiful；popular→most popular
不规则变化（必背） 特殊记忆 good/well→best；bad/ill→worst；many/much→most
3. 必考核心句型（抄写并翻译）
1. A + be + the + 最高级 + in/of… The blue whale is the largest animal in the world. 译：蓝鲸是世界上最大的动物。
2. one of the + 最高级 + 可数名词复数 Ginkgo trees are one of the most ancient trees on earth. 译：银杏树是地球上最古老的树种之一。
3. Which/Who is the + 最高级, A, B or C Which flower is the most beautiful, rose, peony or lotus 译：玫瑰、牡丹、荷花，哪一种花最美？
4. 高频易错点（预习重点）
① one of 后必须跟：the+最高级+名词复数，谓语动词用单数；
② 最高级必须有比较范围（in/of/among），无范围不用最高级；
③ most 表示“非常”（非最高级）时，前面不加the。
四、课文预习任务（Section A & Section B）
Task 1 Section A 竹子&银杏预习思考题
1. What is bamboo used for 竹子有哪些用途？ ________________________________________________
2. Why is bamboo a symbol of goodness in China ________________________________________________
3. Why do thousands of visitors come to see old ginkgo trees in autumn ________________________________________________
Task 2 Section B 蜜蜂阅读预判
1. 标题预判：What’s the main idea of the passage about bees A. How bees make honey B. The importance of bees to nature C. How bees communicate
2. 勾画文中所有最高级词汇，抄写3个：________________________
Task 3 课文重点句子翻译（预习划线句）
1. Bamboo can grow one meter a day. 译：____________________________________
2. Some ancient elephant birds could stand up to 3 meters tall and weigh up to 860 kilos. 译：____________________________________
3. Without bees, we can’t have most fruits and vegetables. 译：____________________________________
4. People, plants and animals are all connected and we need each other to live. 译：____________________________________
五、预习基础小练习
Ⅰ 用所给词的最高级填空
1. The cheetah runs ______ (fast) among all land animals.
2. This ginkgo tree is ______ (beautiful) in the mountain.
3. Bamboo is one of ______ (useful) plants in China.
4. Blue whales are ______ (heavy) animals on the planet.
5. This folding fan is ______ (cheap) of all the fans.
Ⅱ 单项选择
( )1. This is one of ______ interesting books I have read. A. the more B. most C. the most
( )2. —Which animal jumps ______, frog, monkey or rabbit —The frog. A. high B. higher C. highest
( )3. We can’t live ______ plants and animals. A. without B. with C. for
六、重点新增：语法专项考查篇（分层练习）
Level 1 基础过关（单句填空·夯实规则）
1. The redwood is the ______ (tall) tree in the world.
2. This is the ______ (old) ginkgo tree in our city.
3. Bees are one of the ______ (important) insects for nature.
4. Among all animals, the blue whale is the ______ (heavy).
5. This kind of bamboo grows ______ (quickly) of all.
Level 2 句型转换（必考题型）
1. The cheetah is faster than any other land animal.（改为最高级） The cheetah is ______ ______ ______ all land animals.
2. This book is more interesting than the other two.（改为最高级） This book is ______ ______ ______ of the three.
3. Bamboo is the most useful plant in China.（改为一般疑问句） ______ bamboo ______ most useful plant in China
Level 3 语法单选拔高
( )1. —Which is ______ , the sun, the moon or the earth —The sun. A. big B. bigger C. the biggest
( )2. Beijing is one of ______ cities in China. A. beautiful B. more beautiful C. the most beautiful
( )3. He runs ______ in his class. A. fast B. faster C. fastest
( )4. This is ______ oldest tree in our town. A. a B. an C. the
( )5. Of all the seasons, I like autumn ______ . A. good B. better C. best
Level 4 语法填空专项（新增·单元必考）
阅读短文，用所给单词的适当形式填空（重点考查形容词/副词最高级）
There are many amazing plants and animals on the earth. The blue whale is ______ 1.(heavy) animal in the world. It is much bigger than any other sea animal. The cheetah is ______ 2.(fast) land animal. It runs ______ 3.(quickly) than all other animals.
Bamboo is one of ______ 4.(useful) plants in China. It grows ______ 5.(fast) among all common plants. Ginkgo trees are one of ______ 6.(ancient) trees on the planet. They live ______ 7.(long) than most trees.
Bees are ______ 8.(important) insects for us. They do the______ 9.(good) job in pollination. Without them, our earth will become the ______ 10.(bad) place for living things.
七、预习疑问记录（课堂提问用）
1. 单词不懂：________________________________
2. 语法难点：________________________________
3. 课文不理解句子：__________________________
八、拓展预习任务（选做）
搜集一种神奇动植物，用3句话（至少包含1个最高级）简单介绍： 例：The redwood is one of the tallest trees in the world. It can live thousands of years. It looks amazing in the forest.
九、参考答案
二、课前自主预习 Task 3 预习自测：单词填空
1. popular 2. tallest 3. cheetah 4. pollination 5. connected
四、课文预习任务
Task 1 Section A 竹子&银杏预习思考题
1. Bamboo can be used to make many things, such as folding fans, chairs and tables. It is also a kind of great food for pandas.
2. Because bamboo is straight, tall and green all year round. It stands for honesty and goodness in Chinese culture.
3. Because the ginkgo leaves turn golden yellow in autumn. They look very beautiful and attract many visitors.
Task 2 Section B 蜜蜂阅读预判
1. B
2. 示例：most important, largest, busiest
Task 3 课文重点句子翻译
1. 竹子一天可以长一米。
2. 一些古老的象鸟最高可达3米，重达860公斤。
3. 没有蜜蜂，我们就无法收获大部分水果和蔬菜。
4. 人类、植物和动物彼此息息相关，我们相互依存、共同生存。
五、预习基础小练习
Ⅰ 用所给词的最高级填空
1. the fastest 2. the most beautiful 3. the most useful 4. the heaviest 5. the cheapest
Ⅱ 单项选择
1. C 2. C 3. A
六、语法专项考查篇（分层练习）
Level 1 基础过关（单句填空）
1. tallest 2. oldest 3. most important 4. heaviest 5. most quickly
Level 2 句型转换
1. the fastest of 2. the most interesting 3. Is; the
Level 3 语法单选拔高
1. C 2. C 3. C 4. C 5. C
Level 4 语法填空专项
1. the heaviest 2. the fastest 3. more quickly 4. the most useful 5. the fastest 6. the most ancient 7. longer 8. the most important 9. best 10. worst
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