Directions: For this part, you are allowed 30 minutes to write a composition on the topic A Letter of Appeal. You should write at least 120 words and you should base your composition on the outline given below:

　　在过去几年中，我们已经目睹了人类活动引起的各种灾害。作为一位大学生，请写一封倡议书，呼吁大家关注这些自然灾害并保护环境，内容应包括：

　　1)举出人类活动引发的灾害的实例2)指出一些必要的防范措施3)号召大家行动起来拯救地球

　　【思路点拨】本题要求写一封倡议书。根据所给提纲，本文应包含以下内容：点明写信的目的：呼吁大家关注人类活动对地球造成的危害，陈述灾害的具体表现;为了拯救地球，我们应当采取哪些措施;号召大家行动起来拯救地球。

　　【参考范文】A Letter of Appeal

　　June 13, 2008

　　Dear friends,

　　I am writing this letter to call on everyone to pay attention to the present disasters caused by human activities. As some of you may know, over the past years, floods, droughts, landslides, and dust storms have frequented our planet. Not long ago, tsunami swept the Southeast Asia, which caused enormous damage. All these have sounded an alarm to human beings. So it is high time that we join efforts to save our planet。

　　Above all, a task of top priority for us is to plant trees as many as possible, especially in the arid areas. At the same time, we should stop deforesting in large amount. And we can save our planet through many other ways, such as saving water and using recycled paper。

　　So don’t hesitate to act out these measures. Even a small action is meaningful to our planet. Please join us in the action of protecting our planet. If you are willing to do something to save our planet, please start from the little thing right around you. Thank you!

　　Sincerely yours,

　　Li Ming