我们周围的环境变得越来越严重，尤其近来我国多地出现雾霾（smog）天气，更引发了人们对环境污染的关注。请你围绕环境保护这一主题，谈一谈你的家乡存在什么环境问题，你作为一名中学生应该如何来保护环境，列举出其中至少3项来说明。

要求：

1.语言通顺，意思连贯，书写规范。

2.词数：80词左右。

One possible version:

As we know, the environment around us is getting worse and worse. Some chemical factories always pour waste water into the stream. And they also produce terrible gas. In some places, some people even have no clean water to drink. So I think we must do something to protect the environment.

How to protect the environment? First, as a student, we should use cloth bags instead of plastic bags when we go shopping. Second , we had better reuse the old textbooks as possible as we can. Third, we should never forget to turn off the lights when we leave the classrooms. In a word , we must try our best to protect our environment. I believe we can make the world a better place to live in.

一档(10-15分)

包含了所有要点, 能围绕内容适当发挥,内容具体、丰富。应用了较丰富的语言结构和词汇, 用词准确、句子通顺、行文连贯、表达清楚，没有或几乎没有语言错误，具备较强的语言运用能力，完全达到了预期的写作目的。

二档(6-9分)

包含了所有要点，并能有所发挥，内容欠丰富。应用的语言结构和词汇能满足任务要求，句子较通顺，表达较清楚，有少量语言错误，达到了预期的写作目的。

三档(4-5分)

漏掉部分要点或只是简单说明要点，内容不够丰富、具体，字数较少。语言表达过于简单，句子不够通顺，行文不够连贯，有部分语言错误。

四档(0-3分)

漏掉多个要点或所写内容明显偏离所给要点，内容过少。语言不规范，句子无条理，行文不连贯，语言错误较多。