1. 垃圾分类的重要性（The Importance of Waste Sorting）
Nowadays, waste sorting has become a key part of urban life. By separating garbage into different categories such as recyclables, kitchen waste, hazardous waste, and others, we can reduce pollution and make better use of resources. For example, paper and plastic can be recycled into new products, which saves energy and reduces the need for raw materials. It is everyone’s duty to learn how to sort waste correctly and form good environmental habits.
如今，垃圾分类已成为城市生活的重要组成部分。通过将垃圾分为可回收物、厨余垃圾、有害垃圾和其他垃圾，我们可以减少污染并更有效地利用资源。例如，纸张和塑料可以被回收制成新产品，从而节约能源并减少对原材料的需求。学会正确分类垃圾、养成良好的环保习惯，是每个人的责任。
✍️点评与重点：本文结构清晰，使用了“recyclables（可回收物）”、“hazardous waste（有害垃圾）”等实用词汇，适合高中写作。句型如“It is everyone’s duty to...”是表达责任的经典句式，可套用在其他话题中。
2. 节约用水，人人有责（Saving Water, Everyone’s Responsibility）
Water is one of the most important natural resources, yet many people still waste it carelessly. Simple actions like turning off the tap while brushing teeth or reusing water for cleaning can make a big difference. In some areas, water shortages have already affected people’s daily lives. We should raise awareness about water conservation and take action now. Remember, every drop counts!
水是最重要的自然资源之一，然而许多人仍在随意浪费。像刷牙时关掉水龙头、重复利用水进行清洁等简单行为，都能产生巨大影响。在一些地区，水资源短缺已经影响到人们的日常生活。我们应提高节水意识，立即采取行动。记住，每一滴水都弥足珍贵！
✍️点评与重点：使用了“make a big difference”、“raise awareness”等短语，表达有力。结尾“every drop counts”简洁有力，适合作为环保类作文的收尾句，增强感染力。
3. 低碳出行，绿色生活（Low-Carbon Travel, Green Living）
With the increase of cars on the road, air pollution has become more serious. Choosing low-carbon ways of travel, such as walking, cycling, or taking public transportation, can help reduce carbon emissions. Not only are these methods environmentally friendly, but they also improve our health. Governments should encourage green travel by building more bike lanes and improving bus services. Small choices can lead to big changes.
随着道路上汽车数量的增加，空气污染日益严重。选择低碳出行方式，如步行、骑自行车或乘坐公共交通工具，有助于减少碳排放。这些方式不仅环保，还能改善我们的健康。政府应通过建设更多自行车道、改善公交服务来鼓励绿色出行。小小的选择，也能带来巨大的改变。
✍️点评与重点：“carbon emissions（碳排放）”、“public transportation（公共交通）”是环保话题高频词。句型“Not only... but also...”结构工整，适合提升作文档次。
4. 拒绝塑料袋，拥抱环保袋（Say No to Plastic Bags, Embrace Eco-Friendly Bags）
Plastic bags are convenient, but they cause serious environmental problems. They take hundreds of years to break down and often end up in oceans, harming marine life. A simple solution is to bring our own cloth bags when shopping. Many countries have already banned or taxed plastic bags to reduce their use. If we all make this small change, we can protect the Earth together.
塑料袋虽然方便，却带来了严重的环境问题。它们需要数百年才能分解，常常最终流入海洋，危害海洋生物。一个简单的解决办法是购物时自带布袋。许多国家已经禁止或对塑料袋征税以减少其使用。如果我们都能做出这一小小的改变，就能共同保护地球。
✍️点评与重点：使用了“end up in oceans”、“harming marine life”等生动表达，增强画面感。“A simple solution is to...”是提出建议的常用句型，实用性强。
5. 保护森林，守护地球（Protecting Forests, Guarding the Earth）
Forests are the lungs of the Earth. They provide oxygen, absorb carbon dioxide, and are home to countless animals. However, deforestation for farming and construction is destroying this precious resource. We must stop cutting down trees unnecessarily and support reforestation projects. Planting a tree may seem small, but it contributes to a healthier planet. Let’s act now to protect our green treasures.
森林是地球的肺。它们提供氧气、吸收二氧化碳，并是无数动物的家园。然而，为了农业和建设而进行的砍伐正在破坏这一宝贵资源。我们必须停止不必要的砍树行为，并支持植树造林项目。种下一棵树看似微小，却为更健康的地球做出了贡献。让我们立即行动，保护我们的绿色宝藏。
✍️点评与重点：“lungs of the Earth”是比喻森林的经典表达，形象生动。“contributes to a healthier planet”可用于多种环保主题作文中，提升语言层次。
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