Unit 5 The power of plants 单元知识点总结2026-2027学年外研版英语七年级上册

该初中英语单元知识清单全面梳理了外研版（2024新版）七年级上册Unit 5 "The power of plants"内容，涵盖植物科普与茶文化核心词汇、短语、句型、语法、写作及文化常识等范畴，搭建了从基础积累到综合应用的递进式学习支架。 清单通过分类整合（词汇按主题分植物/茶文化板块）、分级自测（基础20题+能力提升10题）及文化关联（成都茶馆vs英国下午茶对比表）呈现知识体系，培养语言能力（写作框架含范文）、文化意识（光合作用原理介绍）和思维品质（易错点正误对比分析）。特别设计语法对比表（will vs be going to）和写作可用句型，附详细解析，助力学生自主复习，教师高效备课。

外研版（2024新版）七年级上册 Unit 5 The power of plants 单元知识点总结 适用教材：外研版（2024新版）七年级上册 | 适用学段：初一上学期 | 资料类型：单元知识点总结 课标对接 【话题】自然与环保（Nature & Environment） 【语言技能】能读懂科普说明文"Within a Plant"；能用一般将来时谈论未来和预测；能读懂议论文"What's your cup of tea?"；能写一篇描述植物/茶文化的短文。 【文化意识】了解光合作用原理、玉米在墨西哥文化中的意义、成都茶馆文化 vs 英国下午茶文化、课文中修辞手法的运用。 【核心语法】一般将来时（will vs be going to）、rise vs raise、million 用法、虚拟语气（without...would...）。 目录 一、重点词汇（50+核心词汇，按课文板块分类，含音标/词性/搭配/例句） 二、重点短语与固定搭配（25+高频短语，含辨析对比） 三、重点句型（6大核心句型，含公式+课文原句+仿写范例） 四、语法精讲（一般将来时 will vs be going to / rise vs raise / million 用法） 五、单元话题写作（介绍植物/茶文化，含范文2篇） 六、易错点与难点突破（10大高频易错，含正误对比+原因分析） 七、文化常识与词根词缀（光合作用 / 玉米文化 / 成都茶馆 vs 英国下午茶 / 修辞手法 / 词缀） 八、单元自测（基础过关20题 + 能力提升10题） 附：参考答案与详细解析 一、重点词汇（Words） 1.1 植物科普词汇 英文 音标 词性 中文 搭配/用法 例句 workshop /ˈwɜːkʃɒp/ n. 车间；工作坊 合成词：work + shop The workshop in the leaf is a factory. leaf /liːf/ n. 叶子 复数 leaves / in the leaf The workshop in the leaf works like a factory. root /ruːt/ n. 根 send up water from the root Water is sent up from the root. stem /stem/ n. 茎 rise up through the stem The water will rise up through the stem. produce /prəˈdjuːs/ v. 生产；制造 produce oxygen / product n. 产品 Plants produce oxygen for us. oxygen /ˈɒksɪdʒən/ n. 氧气（不可数） produce oxygen / breathe oxygen Oxygen means a lot to animals and humans. breathe /briːð/ v. 呼吸 breathe oxygen / 【注意】名词 breath /breθ/ We need oxygen to breathe. sugar /ˈʃʊɡə/ n. 糖（不可数） turn ... into sugar Most importantly, there will be sugar! sunlight /ˈsʌnlaɪt/ n. 阳光（不可数） 合成词：sun + light / collect sunlight They collect sunlight during the day. quarter /ˈkwɔːtə/ n. 一刻钟；四分之一 a quarter past seven / a quarter of It's a quarter past seven. Time to start work! 1.2 茶文化词汇 英文 音标 词性 中文 搭配/重点信息 secret /ˈsiːkrɪt/ n./adj. 秘密；秘诀 It's no secret that... / the secret of... connect /kəˈnekt/ v. 连接；联系 connect people / connect...with... / connection n. culture /ˈkʌltʃə/ n. 文化（不可数） a cup of culture / cultural adj. 文化的 teahouse /ˈtiːhaʊs/ n. 茶馆 合成词：tea + house / 复数 teahouses chat /tʃæt/ v./n. 聊天 chat with friends / 过去式 chatted relax /rɪˈlæks/ v. 放松 relaxing（令人放松的） / relaxed（感到放松的） million /ˈmɪljən/ num. 百万 millions of 数百万 / 3 million（不加s） popular /ˈpɒpjələ/ adj. 受欢迎的 be popular with / popularity n. 流行 二、重点短语与固定搭配（Phrases） 短语 中文释义 例句 用法提示 send up 上送；向上输送 Water is sent up from the root. 被动语态：be sent up rise up through 通过...上升 The water will rise up through the stem. rise 不及物 during the day 白天 They collect sunlight during the day. during = 在...期间 turn...into... 把...变成... They will turn them into sugar. = change...into... most importantly 最重要的是 Most importantly, there will be sugar! 用作插入语，表强调 mean a lot to 对...意义重大 Oxygen means a lot to animals and humans. = be very important to It's no secret that... 这不是秘密... It's no secret that tea connects people. = It's well known that... millions of 数以百万计的 Millions of plants grow in the forest. millions of 不加数字 / 3 million 不加 s be popular with 受...欢迎 Tea is popular with people around the world. = be liked by as...as... 像...一样... as many teahouses as leaves in a cup of tea as + 形容词 + as + 名词 collect...during the day 白天收集... They collect sunlight and CO₂ during the day. 注意拼写：collect 有两个 l 三、重点句型（Sentence Patterns） 编号 句型 功能 公式 / 课文原句 / 仿写 1 It's a quarter past seven. 表达时间 公式：It's + 分钟 + past/to + 小时. 课文：It's a quarter past seven. Time to start work! 仿写：It's half past eight. Let's begin our class. 2 ...will rise up through... 描述将来过程 公式：主语 + will + 动词原形. 课文：The water will rise up through the stem. 仿写：The plant will grow taller and taller. 3 Most importantly, there will be...! 强调重点 公式：Most importantly, there will be + 名词! 课文：Most importantly, there will be sugar! 仿写：Most importantly, there will be a big surprise! 4 ...mean(s) a lot to... 表达重要性 公式：主语 + mean(s) a lot to + sb./sth. 课文：Oxygen means a lot to animals and humans. 仿写：Family means a lot to me. 5 It's no secret that... 引出已知事实 公式：It's no secret that + 从句. 课文：It's no secret that tea connects people. 仿写：It's no secret that reading opens a new world. 6 Without..., ...would be... 虚拟语气 公式：Without + 名词, 主语 + would + 动词原形. 课文：Without plants, the natural world would be very different. 仿写：Without water, there would be no life on Earth. 四、语法精讲 —— 一般将来时（Simple Future Tense） 【中考考频】中考必考时态，每年 3-5 题，will 和 be going to 的区别是核心考点。 4.1 will 与 be going to 对比 用法 will be going to 例句 预测 一般性预测 有迹象的预测 I think it will rain. / Look at the clouds! It's going to rain. 计划 临时决定 事先计划好的 I'll help you. / I'm going to visit my grandma this Sunday. 承诺/意愿 表达承诺、意愿 —— I will always love you. 客观将来 客观会发生的事 很少用 There will be a flower show next week. 4.2 句式转换 句式 will be going to 肯定句 主语 + will + 动词原形 主语 + am/is/are going to + 动词原形 否定句 主语 + will not (won't) + 动词原形 主语 + am/is/are not going to + 动词原形 一般疑问句 Will + 主语 + 动词原形? Am/Is/Are + 主语 + going to + 动词原形? 特殊疑问句 What will + 主语 + do? What + am/is/are + 主语 + going to do? 4.3 rise vs raise rise (rose, risen) —— 不及物动词，"自己上升"：The sun rises in the east. / The water will rise up. raise (raised, raised) —— 及物动词，"举起某物"：Raise your hand. / They raise the flag every morning. × The sun raises in the east. → √ The sun rises in the east. 4.4 million 用法 有具体数字：million 不加 s → three million people / five million trees 无具体数字：millions of → millions of plants / millions of people × three millions → √ three million 4.5 虚拟语气：without...would... 【中考考频】完形填空和阅读中偶尔出现，理解即可。 Without plants, the natural world would be very different.（没有植物，自然界将大不相同。） Without water, we would die in three days. / Without oxygen, there would be no life. 五、单元话题写作（Writing） 5.1 写作任务：介绍植物的重要性或茶文化 5.2 写作框架 段落 内容 可用句型 第一段 引入主题 Plants are very important to us. / It's no secret that... 第二段 具体说明（光合作用过程） Water is sent up from... / Then...will rise up through... / Most importantly, there will be... 第三段 意义与感悟 ...mean(s) a lot to... / Without..., ...would be... / We should... 5.3 范文 【范文一】植物的重要性（约110词） Plants are very important to us. They are like factories that work day and night. In the workshop of the leaf, amazing things happen. Water is sent up from the root. Then it will rise up through the stem. At the same time, the leaf collects sunlight and CO₂ during the day. It will turn them into sugar and oxygen. Most importantly, there will be sugar for the plant's growth! Oxygen means a lot to animals and humans because we need it to breathe. Without plants, the natural world would be very different. So we should protect our green friends. 【范文二】茶文化（约120词） It's no secret that tea is one of the most popular drinks in the world. But tea is more than just a drink — it is a cup of culture. In China, there are many teahouses, especially in Chengdu. People go there to chat with friends, play cards, or just relax. It's part of the lifestyle. In the UK, people enjoy afternoon tea with biscuits and sandwiches. The two cultures are different, but both show that tea connects people. As the saying goes, there are "as many teahouses as leaves in a cup of tea" in Chengdu. Tea brings people together, and that's the real power of this simple drink. 六、易错点与难点突破（Common Mistakes） 编号 易错点 错误示例 正确写法 原因分析 1 will 后接 to do × It will to rain. √ It will rain. will 后接动词原形，不加 to 2 rise vs raise × The sun raises in the east. √ The sun rises in the east. rise 不及物（自己升）；raise 及物（举起） 3 leaf 复数 × leafs / leafes √ leaves f/fe→ves 4 There will be × There will have a party. √ There will be a party. There be 用 be，不用 have 5 breathe vs breath × I need to breath. √ I need to breathe. 动词 breathe（有e），名词 breath（无e） 6 million 加 s × three millions trees √ three million trees 有具体数字时 million 不加 s 7 send 过去式 × The root sended water. √ The root sent water. send→sent（不规则） 8 relaxing vs relaxed × I feel relaxing. √ I feel relaxed. -ing 令人放松的，-ed 感到放松的 9 collect 拼写 × They colect sunlight. √ They collect sunlight. collect 拼写中有两个 l，注意不要漏写 10 without 虚拟语气 × Without plants, the world is very different. √ Without plants, the world would be very different. 虚拟语气用 would be 七、文化常识与词根词缀（Culture Link & Word Building） 7.1 光合作用 光合作用是地球上最重要的化学反应之一。植物通过叶子中的叶绿体，将水、二氧化碳和阳光转化为糖（自身能量）和氧气（供动物呼吸）。课文用了一个巧妙的双关语（pun）：plant 既指"植物"也指"工厂"——叶子就是大自然的"绿色工厂"。 7.2 玉米 —— 墨西哥的文化之根 玉米原产于墨西哥，约有 9000 年种植历史。墨西哥人说"我们是玉米做的"——玉米不仅是食物，更是文化象征。最大的玉米穗可达近 45 厘米。 7.3 成都茶馆 vs 英国下午茶 方面 成都茶馆 英国下午茶 场所 遍布大街小巷的茶馆（teahouse） 家中或专门的茶室 茶种 绿茶、花茶（jasmine tea）为主 红茶（black tea）加奶加糖为主 社交 聊天、打牌、谈生意 亲戚朋友聚会，配饼干、三明治 名句 茶馆多得像杯中的茶叶 众所周知英国人爱下午茶 7.4 修辞手法 手法 英文 课文示例 效果 双关语 pun "The power of plants" — plant = 植物/工厂 一箭双雕，增加趣味 拟人 personification "Worker No. 55" / "take a rest" 让复杂科学过程生动易懂 夸张 hyperbole as many teahouses as leaves in a cup of tea 强调成都茶馆之多 7.5 常见词根词缀 词缀/词根 含义 本单元例词 扩展词 -ful 形容词后缀 —— useful（有用的）, careful（仔细的）, hopeful（有希望的） -less 形容词后缀，"没有...的" —— useless（无用的）, careless（粗心的）, hopeless（无望的） -th 名词后缀 growth（成长） warmth（温暖）, truth（真相）, strength（力量） -tion 名词后缀 —— action（行动）, education（教育）, information（信息） -ing 形容词后缀 —— relaxing（令人放松的）, amazing（令人惊叹的） -ed 形容词后缀 —— relaxed（放松的）, amazed（惊讶的） re- 前缀，"再次" —— return（返回）, review（复习）, rewrite（重写） un- 前缀，"不" —— unhappy（不开心的）, unable（不能的）, unlike（不像） 八、单元自测（Self-check） （本部分为"学生版"，不含答案。参考答案与解析见附录。） 第一部分：基础过关（20题） 一、根据首字母或汉语提示写出单词（10分） 1. Plants p______（生产）oxygen for us to b______（呼吸）. 2. The w______（车间）in the l______（叶子）works like a factory. 3. Water is s______ u______（上送）from the r______（根）. 4. It's a q______（一刻钟）past seven. Time to start work! 5. The water will r______（上升）up through the s______（茎）. 6. Sugar is u______（有用的）for the g______（生长）of plants. 7. It's no s______（秘密）that tea connects people. 8. They c______（收集）sunlight and CO₂ during the day. 9. Tea is a c______（文化）that connects people around the world. 10. People go to t______（茶馆）to chat with friends and relax. 二、用 will 或 be going to 填空（5分） 11. Look at the dark clouds! It ______ ______ ______ rain soon. 12. I think more people ______ drink tea in the future. 13. She ______ ______ ______ visit the teahouse this Sunday. 14. There ______ ______ a flower show in our school next week. 15. — What ______ you do tomorrow? — I ______ help my mum in the garden. 三、用所给词的正确形式填空（5分） 16. Many ______ (leaf) turn yellow and fall in autumn. 17. The sun ______ (rise) in the east every morning. 18. I feel very ______ (relax) after drinking a cup of hot tea. 19. Without trees, our city ______ (will) be much hotter in summer. 20. ______ (million) of plants grow in the rainforest. 第二部分：能力提升（10题） 四、单项选择（5分） 21. There ______ a sports meeting in our school next Monday. A. will have B. is going to have C. will be D. has 22. Oxygen ______ animals and humans — they need it to breathe. A. means a lot to B. mean a lot to C. mean a lot for D. means a lot for 23. Which sentence is CORRECT? A. The sun raises in the east. B. Without water, we will die in three days. C. The root sends up water to the stem. D. There are as many teahouses as leaf in a cup of tea. 24. They ______ sunlight and CO₂ during the day and ______ them into sugar. A. collect; turn B. will collect; turned C. collect; will turn D. collected; turn 25. It's no secret ______ tea is one of the most popular drinks. A. what B. that C. which D. why 五、翻译句子（5分） 26. 水将通过茎上升到叶子。 27. 最重要的是，将会产生糖！ 28. 氧气对动物和人类意义重大。 29. 没有植物，自然界将大不相同。 30. 众所周知，茶能连接人与人。 附录：参考答案与详细解析 基础过关答案 题号 答案 解析 1 produce; breathe 动词形式。breathe 注意拼写有 e，区别名词 breath。 2 workshop; leaf 合成词 work + shop；单数 leaf。 3 sent up; root 被动语态 be sent up；过去式 sent（不规则）。 4 quarter a quarter = 一刻钟/四分之一。 5 rise; stem rise 不及物动词，自己上升。 6 useful; growth useful = use + ful；growth = grow + th。 7 secret It's no secret that... 固定句型。 8 collect collect 拼写中有两个 l，注意不要漏写。 9 culture culture 不可数，在这里指"文化现象"。 10 teahouses tea + house → teahouse，复数 teahouses。 11 is going to 乌云是下雨的迹象→be going to。 12 will I think + will 表预测。 13 is going to this Sunday + 计划→be going to。 14 will be There will be = 将会有。 15 will; will 一般将来时问和答。 16 leaves leaf 复数 leaves（f→ves）。 17 rises the sun 三单 + rise（不及物）。 18 relaxed 人"感到放松"→ relaxed。 19 would 虚拟语气用 would。 20 Millions millions of 固定搭配。 能力提升答案 题号 答案 解析 21 C There will be... A/B 错在 have 混入 There be。 22 A Oxygen 三单→means；mean a lot to sb. 23 C A: rises；B: would die（虚拟）；D: leaves（复数）。 24 A 描述一般事实→现在时：collect...and turn。 25 B It's no secret that... 固定句型。 26 The water will rise up to the leaf through the stem. 27 Most importantly, there will be sugar! 28 Oxygen means a lot to animals and humans. 29 Without plants, the natural world would be very different. 30 It's no secret that tea connects people. 学科网（北京）股份有限公司 $