Dear Jim,

I really feel worried about you.

You used to do well in your lessons and took an active part in the activities at school. But now you are so crazy about computer games that you have no interest in your schoolwork and don't listen to teachers as carefully as before in class. Also, you can't hand in your homework on time. Perhaps playing computer games can make you feel relaxed, but if you spend too much time on it, you will have less time to study. And it may be bad for your health. For example, it can hurt your eyes and hands.

I hope you should concentrate more on your schoolwork. Why not take part in some after-school activities when you feel bored? Why not spend more free time chatting with your friends?

Yours

Li Hua

题目分析: 这是一篇应用文写作，写一封信。给出的材料比较全面，我们所要做的首先是应用正确的英语句子把这些内容表达出来，在此基础上亦可适当发挥，注意不要遗漏材料中给出的要点。写作前先结合要表达的事情确定句子的人称时态，注意标点符号及大小写等问题，不要犯语法错误。注意上下文之间的逻辑关系，语意连贯。

点评：注意写作中的时态、人称和数的问题，时态一般是一般现在时态，人称是第一人称较多。写作中语言要准确、简明，说明有条理，符合逻辑。