Unit 7 The natural world Welcome to the unit课文要点讲义2026-2027学年译林版英语八年级上册

本初中英语讲义聚焦“自然世界”主题，系统梳理雨林、珊瑚礁、草原等生态系统核心词汇及“be home to”“look like”“lie between”等关键句型，通过词汇解析、例句填空、短语互译等学习支架，帮助学生从词汇理解逐步过渡到句型运用，构建连贯知识脉络。 该资料以分层练习设计为亮点，通过句子填空、单项选择、选词填空等多样化题型提升语言能力，结合不同生态系统对比（如内蒙古与非洲草原动物差异）培养思维品质，高频短语汇总助力自主学习。课中辅助教师系统授课，课后帮助学生巩固知识，有效查漏补缺。

Unit 7 The natural world Welcome to the unit 【课文要点】 1. Rainforests are home to over half of all the types of animals and plants on earth. 雨林是地球上超过一半动植物物种的家园。 - rainforest n. 雨林 - be home to 是……的家园/栖息地 - over half 超过一半 - type n. 类型，种类 - on earth 在地球上 - e.g. Rainforests ____________ ____________ over half of all the types of animals and plants on earth. 2. Coral reefs look like rocks, but they support a lot of life in just a small area. 珊瑚礁看起来像岩石，但它们在很小的区域内支撑着大量的生命。 - coral reef n. 珊瑚礁 - look like 看起来像 - rock n. 岩石 - support v. 支撑，支持；维持 - area n. 区域，面积 - e.g. Coral reefs ____________ ____________ rocks. - e.g. They ____________ a lot of life in just a small ____________. 3. Grasslands often lie between deserts and forests. 草原通常位于沙漠和森林之间。 - grassland n. 草原，草地 - lie v. 位于（过去式 lay，现在分词 lying） - between... and... 在……和……之间 - desert n. 沙漠 - forest n. 森林 - e.g. Grasslands often ____________ between deserts and forests. 4. The ice is home to animals like polar bears and penguins. 冰原是北极熊和企鹅等动物的家园。 - ice n. 冰，冰原 - polar bear 北极熊 - penguin n. 企鹅 - e.g. The ____________ is home to animals like polar bears and penguins. 5. Do you know anything about ecosystems? 你对生态系统了解吗？ - ecosystem n. 生态系统 - e.g. Do you know anything about ____________? 6. I know that grasslands in different places are home to different animals. 我知道不同地方的草原是不同动物的家园。 - different places 不同的地方 - e.g. Grasslands in different ____________ are home to different animals. 7. In Inner Mongolia, there are horses and cows, but in Africa, there are lions and giraffes. 在内蒙古有马和牛，但在非洲有狮子和长颈鹿。 - Inner Mongolia 内蒙古 - horse n. 马 - cow n. 奶牛，母牛 - Africa n. 非洲 - lion n. 狮子 - giraffe n. 长颈鹿 - e.g. In Inner Mongolia, there are ____________ and cows. 8. Well, it's very dry in deserts because there’s little rain. 嗯，沙漠里非常干燥，因为降雨很少。 - dry adj. 干燥的 - little adj. 很少的（修饰不可数名词） - e.g. It's very ____________ in deserts because there’s little rain. 9. And the difference in temperature between day and night is huge. 而且白天和黑夜之间的温差很大。 - difference n. 差异，差别 - between... and... 在……和……之间 - day and night 白天和黑夜 - huge adj. 巨大的，极大的 - e.g. The ____________ in temperature between day and night is huge. 10. Yes, the climate in deserts is so awful that only a few animals and plants can live there. 是的，沙漠的气候如此糟糕，以至于只有少数动植物能在那里生存。 - climate n. 气候 - awful adj. 糟糕的 - so... that... 如此……以至于…… - a few 一些，几个（修饰可数名词） - live v. 生活，生存 - e.g. The climate in deserts is ____________ awful ____________ only a few animals and plants can live there. 11. It's true. The desert plants keep water in their leaves, and many animals there get water from these plants. 确实如此。沙漠植物把水储存在叶子里，那里的许多动物从这些植物中获取水分。 - keep water 保持水分，储存水分 - leaf n. 叶子（复数 leaves） - get... from... 从……获取…… - e.g. The desert plants ____________ water in their leaves. - e.g. Many animals there ____________ water ____________ these plants. 12. What other fun facts about ecosystems do you know? 你还知道关于生态系统的其他有趣事实吗？ - What other... 其他什么…… - fun facts 有趣的事实 - e.g. ____________ other fun facts about ecosystems do you know? 【高频短语汇总】中英互译 1. be home to __________ 2. __________ 是……的家园 3. over half of __________ 4. __________ 超过一半 5. on earth __________ 6. __________ 在地球上 7. look like __________ 8. __________ 看起来像 9. a small area __________ 10. __________ 一个小区域 11. lie between __________ 12. __________ 位于……之间 13. different places __________ 14. __________ 不同的地方 15. day and night __________ 16. __________ 白天和黑夜 17. so... that... __________ 18. __________ 如此……以至于…… 19. keep water __________ 20. __________ 储存水分 21. get... from... __________ 22. __________ 从……获取 23. fun facts __________ 24. __________ 有趣的事实 【综合练习】 一、根据汉语意思完成句子 1. 雨林是地球上超过一半动植物物种的家园。 Rainforests ____________ ____________ over half of all the types of animals and plants on earth. 2. 珊瑚礁看起来像岩石。 Coral reefs ____________ ____________ rocks. 3. 草原通常位于沙漠和森林之间。 Grasslands often ____________ between deserts and forests. 4. 冰原是北极熊和企鹅的家园。 The ice ____________ home to animals like polar bears and penguins. 5. 沙漠里非常干燥，因为降雨很少。 It's very ____________ in deserts because there’s little rain. 6. 白天和黑夜之间的温差很大。 The ____________ in temperature between day and night is ____________. 7. 沙漠的气候如此糟糕，以至于只有少数动植物能在那里生存。 The climate in deserts is ____________ awful ____________ only a few animals and plants can live there. 8. 沙漠植物把水储存在叶子里。 The desert plants ____________ water in their ____________. 9. 许多动物从这些植物中获取水分。 Many animals there ____________ water ____________ these plants. 10. 你还知道其他关于生态系统的事实吗？ ____________ other facts about ecosystems do you know? 二、单项选择 ( ) 1. Rainforests are home ________ over half of all the types of animals. A. to B. for C. with D. of ( ) 2. Coral reefs look ________ rocks. A. at B. after C. like D. for ( ) 3. Grasslands often lie ________ deserts and forests. A. among B. between C. in D. on ( ) 4. The ice is home to animals like polar bears and ________. A. penguins B. pandas C. dolphins D. eagles ( ) 5. It is very dry in deserts because there is ________ rain. A. few B. a few C. little D. a little ( ) 6. The difference in temperature between day and night is ________. A. big B. huge C. large D. all of the above ( ) 7. The climate in deserts is so awful ________ only a few animals can live there. A. as B. that C. when D. while ( ) 8. The desert plants keep water in their ________. A. leafs B. leaves C. leaf D. leaving ( ) 9. Many animals get water ________ these plants. A. to B. for C. from D. with ( ) 10. In Inner Mongolia, there are horses and ________. A. cows B. lions C. giraffes D. polar bears 三、选词填空（从方框中选择合适的单词填空，注意形式变化） | rainforest | coral reef | grassland | desert | ecosystem | polar bear | penguin | giraffe | 1. ____________ are home to over half of all the types of animals and plants. 2. ____________ look like rocks but support a lot of life. 3. ____________ often lie between deserts and forests. 4. The ice is home to animals like ____________ and ____________. 5. In Africa, there are lions and ____________. 6. It is very dry in ____________ because there’s little rain. 【答案】 一、 1. are home to 2. look like 3. lie 4. is 5. dry 6. difference, huge 7. so, that 8. keep, leaves 9. get, from 10. What 二、 1. A 2. C 3. B 4. A 5. C 6. D 7. B 8. B 9. C 10. A 三、 1. Rainforests 2. Coral reefs 3. Grasslands 4. polar bears, penguins 5. giraffes 6. deserts 1 学科网（北京）股份有限公司 $