解题思路： 1．认真审题 应做到“四审”：（1）明确体裁。（2）确定内容。（3）确定人称。（4）确定时态、语态。 2.理顺要点 内容要点不能缺。在认真审题基础上，应注意逐个地、完整地把内容要点列出来。 3．组织句子 将理顺的要点逐句表达出来，这是书面表达的关键一步。完成这个步骤要注意：（1）书面表达重在达意，不要简单直译，要用英语思维，套用英语句型，用自己有把握的句子和词汇，不用自己拿不准的词汇和句式。切忌用汉语句型去套用英语，乃至写出大量汉式英语。（2）如果碰上汉语提示中找不着相应的英语词语或句型，不要轻易放弃，要开动脑筋，学会用内容相近的句子来表达。（3）尽可能写结构简单的句子，少用自己无把握的复合句。（4）选择正确的人称、时态、语态，注意冠词、单复数、大小写、标题等。 4．串句成篇 必要时使用一些表示并列、递进、让步、转折、因果等意义的关联词语。 5．检查修改 文章草稿写成后，默读一至两遍，检查修改，看文章是否对题，格式是否正确，内容是否完整，文句有无语病，行文是否连贯，拼写是否错误，词数是否恰当。
解题过程：
In the past hundred years, there have been frequent natural disasters, such as floods, droughts, mud-rock flows, seismic sea waves, earthquakes, windstorms and the stretching of new deserts. The disasters have killed millions upon millions of people, destroyed countless homes, and wiped out numerous pieces of fertile land.
Now more and more people become aware that those disasters have much to do with what we have done to the earth. We have cut down too many trees in the forests, we have badly polluted the environment, we have shocked our own home-planet time and again with tremendously powerful explosions of nuclear bombs. As a result, climates have become abnormal, rainwater rushes down hillsides angrily, and the underground energy goes up to revenge itself on us.
The earth is our only home-planet. It is urgent for us to stop damaging it, and to do our best to protect it and make it a lovely place suitable to live in, for we have nowhere to go and survive except where we are now.
