九年级英语第三单元作文怎么写？

下面我将为你提供一个写作框架、一篇范文、以及一些常用词汇和句型,希望能帮助你写出一篇优秀的作文。

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写作思路与框架

一篇好的议论文或说明文，结构一定要清晰，建议采用“总-分-总”的结构。

第一段：引言 - 点明主题，引出问题

• 开头句： 用一个引人注目的句子开头，比如一个普遍的现象、一个重要的问题或一个引人深思的问题。
• 背景介绍： 简要说明当前环境问题的严重性（污染、资源短缺、物种灭绝等）。
• 中心论点： 明确提出你的观点，即“保护环境/濒危动物刻不容缓”。

第二段：主体段落 - 分析问题，阐述原因和影响

• 主题句： 概括本段要讲的内容，造成这些问题的主要原因有……”或“这些环境问题带来了严重的影响”。
• 阐述原因：
  • 人类活动： 工业污染、砍伐森林、过度捕捞、使用一次性塑料等。
  • 缺乏意识： 很多人没有环保意识,随意丢弃垃圾。
• 阐述影响/后果：
  • 对自然： 破坏生态平衡，导致全球变暖,极端天气增多。
  • 对动物： 栖息地被破坏,许多物种濒临灭绝。
  • 对人类： 危害人类健康,影响我们的生活质量。

第三段：主体段落 - 提出解决方案

• 主题句： 概括本段要讲的内容，为了改变现状，我们必须采取行动”。
• 分点建议（从不同角度）：
  • 政府层面： 制定并执行环保法律,投资绿色能源。
  • 社会层面： 增加环保宣传,提高公众意识。
  • 个人层面（重点）： 作为学生/普通人，我们可以做什么？（节约用水用电、垃圾分类、绿色出行、拒绝使用一次性产品等）。
• 具体行动： 举一两个你自己的例子,让文章更真实。

第四段：- 总结全文，升华主题

• 重申观点： 用不同的方式再次强调保护环境的重要性。
• 发出呼吁/展望未来： 呼吁大家立即行动起来，为了我们自己，也为了子孙后代,共同创造一个更美好的未来。

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范文示例

Topic: Protecting Our Endangered Animals

In recent years, the alarming decline of wildlife populations has become a critical global issue. Among the many victims of environmental changes, endangered animals stand out as a heartbreaking symbol of our planet's fragile ecosystem. Therefore, it is our urgent responsibility to take immediate action to protect these precious creatures.

The primary reasons for animals becoming endangered are closely linked to human activities. The destruction of natural habitats, such as deforestation for urban development and agriculture, leaves many species with nowhere to live. Additionally, illegal hunting and overfishing for profit have pushed numerous animals, like the giant panda and the South China tiger, to the brink of extinction. The consequences are severe. The loss of biodiversity disrupts the natural balance, leading to a chain reaction that can harm the entire environment, including the air we breathe and the water we drink.

However, the situation is not hopeless. There are effective measures we can take to save these animals. Governments should play a leading role by strengthening laws against poaching and habitat destruction, while also establishing more nature reserves. On a societal level, we should raise public awareness through education and media campaigns. As individuals, we can also make a difference. For example, we can reduce our use of products that harm wildlife, such as those made from endangered species, and support organizations dedicated to animal protection. Even small daily actions, like reducing waste and recycling, can contribute to a healthier planet for all living things.

In conclusion, protecting endangered animals is not just a duty; it is an investment in our own future. The survival of these animals is intertwined with our own. Let us act now, with determination and care, to ensure that future generations can also marvel at the beauty and diversity of the natural world.

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常用词汇与句型

核心词汇

• 环境问题:
  • environmental problem / issue
  • pollution (n.) 污染
  • air/water/soil pollution
  • global warming 全球变暖
  • climate change 气候变化
  • habitat destruction 栖息地破坏
  • deforestation (n.) 砍伐森林
  • overfishing (n.) 过度捕捞
  • waste (n.) 垃圾，废物
• 濒危动物:
  • endangered species 濒危物种
  • wildlife (n.) 野生动物
  • biodiversity (n.) 生物多样性
  • extinct (adj.) 灭绝的
  • on the brink of extinction 濒临灭绝
  • ecosystem (n.) 生态系统
  • natural balance 自然平衡
• 保护与行动:
  • protect / conserve / preserve 保护
  • take action / measures 采取行动/措施
  • raise public awareness 提高公众意识
  • make a difference (v.) 产生影响，做出贡献
  • be responsible for 对...负责
  • in danger 处于危险中
  • sustainable development 可持续发展
  • recycle (v.) 回收利用
  • save energy / water 节约能源/用水

万能句型

• 引出话题:
  • Now, ... has become a hot topic around the world.
  • There is no denying that ... is a serious problem we are facing.
  • It is well-known that ... plays an important role in our lives.
• 提出观点:
  • As far as I'm concerned, ... (就我而言，...)
  • In my opinion, we should ... (在我看来，我们应该...)
  • It is high time that we took action to ... (是我们采取行动去...的时候了。)
• 阐述原因:
  • The reasons for this are as follows.
  • There are two main factors contributing to this phenomenon.
  • First of all, ... Secondly, ...
• 提出建议:
  • To solve this problem, we can take the following measures.
  • It is necessary for us to ...
  • We should try our best to ...
• 总结全文:
  • In a word, ... (...)
  • To sum up, ... (...)
  • Only by ... can we ... (只有通过...我们才能...)
  • Let's work together to build a better future.

最后的小提示：

• 卷面整洁： 书写工整,给阅卷老师一个好印象。
• 内容完整： 确保所有要点都覆盖到。
• 语言准确： 尽量使用你学过的、有把握的词汇和句型,不要用生僻词。
• 检查修改： 写完后通读一遍，检查语法、拼写和标点错误。 对你有帮助！祝你取得好成绩！