One possible version:

Dear Alice

I’m worried about the situation you are facing , in which you find it difficult to get rid of the habit of reading novels. As we all know, we are senior 3 students and we must make use of every minute every day.  Spending too much time on reading novels is a waste of time. And I can’t wait  to give you some suggestions, for fear that you would deserve to have a great loss in your study. On the one hand, you can relax yourself by reading some materials in a certain period of time for example, lunch break. For the rest of the day, you’d better value it more efficiently. I’m willing to wait for your good news, and you can make it, can’t you?

Yours ,

Li Hua

题目分析：考查提纲式作文：写好提纲式作文的关键是认真审题和分析所给的提纲，因此考生首先要认真阅读前面的提示，认清写作要求和提纲之间的关系，然后确定文章的主题、文体、人称和时态。根据所给提纲，列出要点，并以此为基础充分发挥自己的想象力，灵活运用英语知识，采用不同的表达方式将各要点完整地表述出来，注意主次分明，详略得当。语言力求准确、简洁。根据情景的发展，按顺序安排好材料。同时应选用合适的连接词或过渡词，使文章具有一定的连贯性。考生必须认真查验是否有漏写情况，有无拼写错误及标点误用等

【亮点说明】I’m worried about the situation you are facing , in which you find it difficult to get rid of the habit of reading novels.这句话有非限制性定语从句和it做形式宾语的用法。Spending too much time on reading novels is a waste of time.这句话是动名词做主语和词组a waste of time，And I can’t wait  to give you some suggestions, for fear that you would deserve to have a great loss in your study.这句话用for fear that引导的从句，范文里面也用了关联词，如On the one hand,使文章更连贯。