四、书面表达。
假如你是李华，你的美国朋友Peter想了解你们班同学的生活习惯。请结合图中调查结果，给Peter写封信，描述调查结果并得出结论。（说明：饼状图中数字为人数）

提示问题:1. How much time do students spend exercising every week?
2. How often do students stay up late?
3. What do you think of their living habits?
要求:1.参考提示内容,可适当发挥；
2.语句通顺,意思连贯,书写工整；
3.文中不得出现任何真实信息(姓名、校名和地名等)；
4.词数不少于70(开头和结尾已给出,不计入总词数)。
Dear Peter,
You asked me about the living habits of my classmates in your last letter. I did a survey and here are the results.







Yours,
Li Hua

First, let's talk about the time my classmates spend exercising every week. There are 50 students in our class. 34 of them spend less than 3 hours exercising every week. 7 students exercise 3 to 5 hours a week, and only 9 students spend over 5 hours on exercise every week.
Then for the habit of staying up late, 32 students never stay up late, they have very good sleep habits. 6 students stay up late 1 to 3 times a week, and 12 students stay up late 4 to 6 times a week, most of them stay up late to finish their homework.
In my opinion, most of my classmates have good sleeping habits, but they do not exercise enough. We should spend more time doing sports to keep strong and healthy, and try not to stay up late as much as possible.

这是一篇图表类书信应用文写作，符合七年级写作要求，写作要点如下：
1. 文体为给笔友的回信，描述调查结果用第三人称，给出评价用第一人称，全程使用一般现在时即可，词汇难度贴合七年级大纲。
2. 先梳理全部饼图数据：班级总人数为50人，运动维度：34名同学每周运动时长少于3小时，7名同学每周运动3-5小时，9名同学每周运动超过5小时；熬夜维度：32名同学从不熬夜，6名同学每周熬夜1-3次，12名同学每周熬夜4-6次。
3. 按照提示问题的顺序依次介绍调查结果，最后给出合理结论：多数同学没有熬夜的坏习惯，但整体运动时长不足，建议大家多锻炼保持健康，保证语句连贯，词数达标，不出现任何真实个人信息。