资源简介

Unit 8 Protecting the environment 写作学案
【写作导引】
本单元以“Protecting the environment”为核心话题，围绕“环境污染（塑料污染、全球变暖）、环保行动（清理垃圾、垃圾分类、生态修复）、环保意识培养”展开，核心聚焦“用英语描述环境问题、分享环保实践、提出环保建议、设计环保活动”，运用不定式（to-infinitive Ⅱ） 等语法知识（不定式作目的状语、定语、宾语补足语为主），搭配环保相关核心词汇与逻辑句型，提升八年级学生的说明类与叙事类写作实用性和语法准确性。常见写作角度包括：① 描述一种环境问题及成因；② 分享自己参与的环保行动经历；③ 给他人提环保建议；④ 设计班级环保俱乐部活动方案；⑤ 给外国笔友介绍中国的环保实践。所有内容严格贴合课本话题、词汇与语法要求，适配八年级英语写作水平，可直接用于课堂同步训练。
【单元话题】
“描述一个你关注的环境问题及解决办法”。请根据课本“Writing”板块及“Global warming”相关内容，写一篇短文描述一种环境问题（如塑料污染、垃圾污染等），包括问题表现、成因及你参与的解决行动，运用不定式，词数70-90左右，题目为“A Small Step to Protect the Environment”。
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【范文】
A Small Step to Protect the Environment
Plastic pollution has become a serious global problem, and it harms our planet greatly.
Every day, people throw away millions of plastic bags and bottles, which pollute soil and oceans. Last month, my classmates and I decided to take action to reduce plastic waste. We brought reusable bags to the supermarket and asked our families to stop using single-use plastic. We also picked up plastic rubbish in the community park on weekends. To spread awareness, we made posters to tell neighbors about the harm of plastic pollution.
These small steps made a difference. I realized that everyone can protect the environment by changing daily habits. Let’s work together to make the earth greener!
【译文】
环保一小步
塑料污染已成为一个严重的全球性问题，它对我们的星球造成了极大伤害。
每天，人们扔掉数百万个塑料袋和塑料瓶，污染土壤和海洋。上个月，我和同学们决定采取行动减少塑料垃圾。我们带环保袋去超市，还让家人停止使用一次性塑料。周末，我们还在社区公园捡拾塑料垃圾。为了传播环保意识，我们制作海报，告诉邻居们塑料污染的危害。
这些小举动带来了改变。我意识到，每个人都可以通过改变日常习惯来保护环境。让我们一起努力，让地球更绿吧！
亮点词块
1.plastic pollution 塑料污染
2.global problem 全球性问题
3.single-use plastic 一次性塑料
4.pick up rubbish 捡拾垃圾
5.spread awareness 传播意识
6.make a difference 产生影响
7.daily habits 日常习惯
8.reusable bags 环保袋
高分句子
1.Last month, my classmates and I decided to take action to reduce plastic waste.（用不定式作目的状语，贴合单元语法重点）
2.To spread awareness, we made posters to tell neighbors about the harm of plastic pollution.（用不定式作目的状语开头，逻辑清晰，突出行动目的）
3.I realized that everyone can protect the environment by changing daily habits.（点明环保核心，升华主题，符合八年级表达逻辑）
【拓展1】
班级要成立环保俱乐部，请你设计一份俱乐部活动方案，包括活动名称、主题、时间、活动内容，运用不定式，词数不少于60。
Our Class Environmental Club Activity Plan
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【拓展1范文】
Our Class Environmental Club Activity Plan
To make our school greener, we plan to launch an environmental club activity called “Green Campus, Our Duty”.
The activity will be held on November 30 from 2:00 p.m. to 4:30 p.m. First, we will invite a teacher to give a talk to teach us how to sort waste correctly. Then, we will divide into groups to clean the school garden—we will pick up rubbish and plant small flowers. Finally, we will make environmental slogans to stick on classroom doors to remind everyone to save energy.
Our goal is to help students develop green habits. We hope more classmates will join us to protect the environment.
【拓展1译文】
我们的班级环保俱乐部活动方案
为了让我们的学校更环保，我们计划开展一项名为“绿色校园，我们的责任”的环保俱乐部活动。
活动将于11月30日下午2点至4点30分举行。首先，我们会邀请一位老师做讲座，教我们如何正确垃圾分类；然后，我们将分组清理学校花园——捡拾垃圾并种植小花；最后，我们会制作环保标语，贴在教室门上，提醒大家节约能源。
我们的目标是帮助同学们养成绿色习惯，希望更多同学加入我们，一起保护环境。
【拓展2】
你的外国笔友Amy想了解中国的塞罕坝奇迹，请你给她写一封简短邮件，介绍塞罕坝的环保成就，运用不定式，词数60左右，开头已给出。
Dear Amy,
You mentioned you’re interested in environmental protection in China. Today I’d like to tell you about Saihanba, a green miracle.
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【拓展2范文】
Dear Amy,
You mentioned you’re interested in environmental protection in China. Today I’d like to tell you about Saihanba, a green miracle.
Saihanba used to be a desert, but Chinese foresters worked hard to turn it into the largest man-made forest in the world. They spent over 60 years planting trees to stop sandstorms and improve the environment. Now, it provides fresh air and protects nearby areas from pollution. To learn from their spirit, we often plant trees in our community.
It’s a great example of how people can change the planet. I hope you’ll learn more about it!
Yours,
Li Yue
【拓展2译文】
亲爱的Amy：
你提到对中国的环保事业感兴趣，今天我想跟你介绍塞罕坝——一个绿色奇迹。
塞罕坝曾经是一片沙漠，但中国的护林员们努力将它变成了世界上最大的人工林。他们花了60多年时间种树，以阻挡沙尘暴、改善环境。现在，它提供新鲜空气，保护周边地区免受污染。为了学习他们的精神，我们经常在社区种树。
这是人类改变地球的绝佳例子，希望你能了解更多相关故事！
你的朋友：李悦
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.环境问题相关（单元重点）
污染类型：plastic pollution 塑料污染；global warming 全球变暖；air pollution 空气污染；water pollution 水污染；rubbish/waste pollution 垃圾污染；sandstorms 沙尘暴
环保行动：sort waste 垃圾分类；pick up rubbish 捡拾垃圾；plant trees 种树；reduce plastic waste 减少塑料垃圾；save energy 节约能源；save water 节约用水；reuse bags 重复使用袋子；recycle 回收利用；clean up the beach/park 清理海滩/公园；stop using single-use plastic 停止使用一次性塑料
环保相关：environmental protection 环境保护；green campus 绿色校园；man-made forest 人工林；spread awareness 传播意识；daily habits 日常习惯；make a difference 产生影响；ecological balance 生态平衡；sustainable development 可持续发展
语法相关（单元重点）
不定式用法：
作目的状语（核心）：To protect the earth, we can...（为了保护地球，我们可以……）；We plant trees to stop sandstorms.（我们种树来阻挡沙尘暴）；He made posters to spread environmental awareness.（他制作海报来传播环保意识）
作定语：a way to save water（节水的方法）；actions to reduce pollution（减少污染的行动）；a plan to protect the park（保护公园的计划）
作宾语补足语：ask sb. to stop using plastic（让某人停止使用塑料）；teach us to sort waste（教我们垃圾分类）；encourage classmates to join the club（鼓励同学加入俱乐部）
常用不定式结构：It’s important to do sth.（做……很重要）；We need to do sth.（我们需要做……）；Try to do sth.（努力做……）
表达类（单元基础）
逻辑连接：first 首先；then 然后；finally 最后；besides 此外；what’s more 而且；as a result 结果；however 然而
常用短语：throw away 扔掉；harm the environment 危害环境；improve the environment 改善环境；protect...from... 保护……免受……；develop green habits 养成绿色习惯；join in 加入；take action 采取行动
二、实用句型积累
1.描述环境问题（贴合单元核心）
[Pollution] has become a serious problem because... ……（污染）已成为严重问题，因为……，例：Plastic pollution has become a serious problem because people use too many single-use plastic products.（塑料污染已成为严重问题，因为人们使用太多一次性塑料产品）
Many... are polluted by... 许多……被……污染，例：Many rivers are polluted by rubbish and factory waste.（许多河流被垃圾和工厂废料污染）
The main causes of [problem] are... ……（问题）的主要原因是……，例：The main causes of global warming are burning coal and cutting down trees.（全球变暖的主要原因是烧煤和砍伐树木）
分享环保行动（贴合单元主题）
I/We decided to... to... 我/我们决定……来……，例：We decided to clean the park to make it cleaner.（我们决定清理公园，让它更干净）
To..., we did many things such as... 为了……，我们做了很多事，比如……，例：To reduce plastic waste, we did many things such as bringing reusable bags and refusing plastic straws.（为了减少塑料垃圾，我们做了很多事，比如带环保袋、拒绝塑料吸管）
After doing these actions, we found that... 做了这些行动后，我们发现……，例：After doing these actions, we found that the community became much cleaner.（做了这些行动后，我们发现社区变得干净多了）
提出环保建议与设计活动（贴合单元内涵）
We should... to... 我们应该……来……，例：We should take shorter showers to save water.（我们应该缩短淋浴时间来节水）
Everyone can... by changing... 每个人都可以通过改变……来……，例：Everyone can protect the environment by changing daily habits.（每个人都可以通过改变日常习惯来保护环境）
The activity will include... to... 活动将包括……来……，例：The activity will include a waste-sorting competition to teach students practical skills.（活动将包括垃圾分类比赛，来教学生实用技能）
三、课堂实用句型
提问句型：What environmental problems do you know ；What causes plastic pollution ；How can we protect the environment in daily life ；What did you do to reduce waste ；Why is sorting waste important
回答句型：I know plastic pollution and global warming.；It’s caused by overusing single-use plastic products.；We can reuse bags and save water.；I picked up rubbish in the park and used reusable bottles.；Because it helps recycle materials and reduce pollution.

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