Unit 5 Looking into nature 作文学案 -2025-2026学年外研版八年级下册

Unit 5 Looking into nature 作文学案 【写作导引】 本单元以“Looking into nature”为话题，属于“人与自然”主题范畴中“自然探索”主题群，核心聚焦“用英语讲述自然探索故事、介绍自然发现、论述探索精神”，运用that/if/whether引导的宾语从句及自然探索相关核心词汇，提升叙事类与说明类写作的逻辑性和科学性。常见写作角度包括：① 描述一次自然探索经历；② 介绍一项有趣的自然发现；③ 给笔友分享自然探索者的故事；④ 论述好奇心对自然探索的重要性。所有内容严格贴合课本话题与语言点，突出“探索性”和“知识性”，可直接用于课堂同步训练。 【单元话题】 “一项有趣的自然发现”。请用英语写一篇短文，介绍一项你了解的自然发现（如生物、地理、现象等），包括发现内容、发现过程及意义，词数60-80左右，题目为“An Interesting Discovery in Nature”。 ________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【范文】 An Interesting Discovery in Nature A surprising discovery about dinosaurs is that they had feathers, which changed people’s old beliefs. For centuries, people thought that dinosaurs were huge lizards without feathers. However, scientists found a dinosaur’s feathered tail in amber from Southeast Asia. This find proves that some dinosaurs had feathers to keep warm or attract mates. It helps us understand that life on earth is always changing. Such discoveries make nature more mysterious and attractive. 【译文】 一项有趣的自然发现 关于恐龙的一个惊人发现是它们长有羽毛，这改变了人们以往的认知。 几个世纪以来，人们认为恐龙是没有羽毛的巨型蜥蜴。然而，科学家在东南亚的一块琥珀中发现了一条带有羽毛的恐龙尾巴。这一发现证明，有些恐龙长羽毛是为了保暖或吸引配偶。 它帮助我们理解地球生命一直在变化，这样的发现让自然变得更加神秘迷人。 亮点词块 1.feathered tail 带羽毛的尾巴 2.huge lizards 巨型蜥蜴 3.old beliefs 以往的认知 4.keep warm 保暖 5.attract mates 吸引配偶 6.life on earth 地球生命 7.mysterious and attractive 神秘而有吸引力 高分句子 1.For centuries, people thought that dinosaurs were huge lizards without feathers.（运用that引导的宾语从句，贴合单元语法重点） 2.However, scientists found a dinosaur’s feathered tail in amber from Southeast Asia.（描述发现过程，符合课本“琥珀揭秘”的核心案例） 3.It helps us understand that life on earth is always changing.（升华发现意义，贴合单元“探索自然奥秘”的主题思想） 【拓展1】 你的外国笔友Peter对自然探索很感兴趣，请你写一封邮件，向他分享一位自然探索者的故事及你的感悟，词数不少于50。 Dear Peter, I’m glad you love nature exploration! I’d like to share the story of Wang Wencai, a great Chinese plant explorer. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Yours, Li Hua 【拓展1范文】 Dear Peter, I’m glad you love nature exploration! I’d like to share the story of Wang Wencai, a great Chinese plant explorer. For over 70 years, he travelled across China to study plants. He discovered about 1,370 new species. Even when he lost sight in one eye at 83, he kept researching with a magnifier. He never cared about personal honour, and his work helps us know more about China’s plant world. His story teaches me that perseverance is key to exploration. Do you want to know more about other explorers? Yours, Li Hua 【拓展1译文】 亲爱的彼得： 很高兴你热爱自然探索！我想和你分享中国伟大的植物探索家王文采的故事。 七十多年来，他走遍中国研究植物，发现了约1370个新物种。即使在83岁失去一只眼睛的视力后，他仍拿着放大镜继续研究。他从不计较个人荣誉，他的研究帮助我们更了解中国的植物世界。 他的故事让我明白，坚持不懈是探索的关键。你想了解更多其他探索家的故事吗？ 你的， 李华 【拓展2】 请根据以下提示，写一篇短文，描述你参与的一次自然探索经历，词数50左右，开头已给出。 提示 信息 探索经历 和同学一起观察校园里的蚂蚁 发现内容 蚂蚁会团队合作搬运食物，能通过气味交流 探索意义 明白小生物也有大智慧，自然充满奥秘 Last weekend, I joined my classmates to explore the ants in our schoolyard, and it was a wonderful experience. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【拓展2范文】 Last weekend, I joined my classmates to explore the ants in our schoolyard, and it was a wonderful experience. We put a piece of bread near their nest and watched carefully. We found that ants work together to carry food much bigger than themselves. Our teacher told us that they communicate through smells. This exploration made me realise that small creatures have great wisdom. Nature is full of secrets waiting to be discovered. 【拓展2译文】 上周末，我和同学们一起探索校园里的蚂蚁，这是一次很棒的经历。 我们在蚁巢附近放了一块面包，仔细观察。我们发现蚂蚁会团队合作搬运比它们自身大得多的食物，老师告诉我们它们通过气味交流。 这次探索让我意识到，小生物也有大智慧，自然中充满了等待被发现的奥秘。 本话题作文的一些实用短语与句型积累 一、核心主题词汇 1.自然探索相关（单元重点） · 探索对象：dinosaur 恐龙；feather 羽毛；amber 琥珀；plant species 植物物种；ant 蚂蚁；creature 生物；natural phenomenon 自然现象 · 探索动作：explore nature 探索自然；make a discovery 做出发现；research 研究；observe 观察；study 研究；find out 查明；unlock secrets 揭开奥秘 · 宾语从句相关：that 引导肯定陈述；if/whether 引导疑问/不确定；prove that 证明……；believe that 相信……；wonder if/whether 想知道是否…… · 感受与评价：mysterious 神秘的；attractive 有吸引力的；fascinating 迷人的；valuable 有价值的；surprising 令人惊讶的 1. 语法相关（单元重点） · that 引导的宾语从句： · 肯定式：主语 + 谓语动词（think/believe/prove等）+ that + 陈述句（People believe that dinosaurs had feathers.） · 否定转移：I don’t think that…（I don’t think that ants are weak.） · if/whether 引导的宾语从句： · 疑问意义：主语 + 谓语动词（wonder/ask等）+ if/whether + 陈述句（Scientists wonder if other species changed.） · 与or not连用：whether + 陈述句 + or not（We don’t know whether the discovery is true or not.） 1. 表达类（单元基础） · 发现描述：change old beliefs 改变以往认知；keep warm 保暖；attract mates 吸引配偶；team work 团队合作；communicate through smells 通过气味交流 · 探索意义：understand nature better 更好地了解自然；reveal secrets of nature 揭示自然奥秘；prove that… 证明……；realise that… 意识到…… 二、实用句型积累 1.介绍自然发现（贴合单元核心） · A(n) + 形容词 + discovery in nature is that + 发现内容. 一项……的自然发现是……，例：A surprising discovery in nature is that some plants can eat insects. · For centuries, people thought that + 旧认知, but + 新发现. 几个世纪以来，人们认为……，但……，例：For centuries, people thought that the earth was flat, but scientists proved that it’s round. · This find proves that + 结论. It helps us understand that + 深层意义. 这一发现证明……，它帮助我们理解……，例：This find proves that bees can recognise colours. It helps us understand that insects are smarter than we thought. 1. 讲述探索者故事（贴合单元主题） · [探索者名字] was a great + 身份. He/She spent + 时间 + doing sth to + 目的. ……是一位伟大的……，他/她花了……时间做某事以……，例：Charles Darwin was a great naturalist. He spent five years travelling around the world to study plants and animals. · Despite + 困难, he/she never gave up. Finally, he/she + 成就. 尽管……，他/她从未放弃，最终……，例：Despite poor health, she never gave up. Finally, she discovered three new plant species. · His/Her story teaches us that + 感悟. 他/她的故事让我们明白……，例：His story teaches us that curiosity and perseverance are important for exploration. 1. 描述个人探索经历（贴合单元内涵） · I + 探索动作 + with + 他人 + to + 目的. We + 发现内容. 我和……一起……以……，我们发现……，例：I went to the forest with my teacher to observe birds. We found that some birds migrate in winter. · During the exploration, we noticed that + 细节. Our teacher told us that + 知识. 探索中，我们注意到……，老师告诉我们……，例：During the exploration, we noticed that ants always walk in a line. Our teacher told us that they follow smell trails. · This experience made me realise that + 感悟. I want to + 未来行动. 这次经历让我意识到……，我想……，例：This experience made me realise that nature is full of secrets. I want to do more exploration in the future. 三、课堂实用句型 · 提问句型：What interesting discoveries in nature do you know?；Have you ever joined a nature exploration?；Who is your favourite nature explorer?；Why is curiosity important for exploration?；What secrets of nature do you want to unlock? · 回答句型：I know the discovery that dinosaurs had feathers.；Yes, I once observed ants with my classmates and found they work in teams.；My favourite explorer is Wang Wencai, a Chinese plant scientist.；Because it drives people to study and discover new things in nature.；I want to know why some plants can glow in the dark. 学科网（北京）股份有限公司 $