Possible versions:
Dear Jane:
I am glad to receive your letter. But at the same time, I'm sorry to hear that you haven't been well recently. In your letter, you asked me how to keep healthy. This is my suggestion.
First of all, you should keep a balanced diet. You should avoid eating high-fat foods and too many sweets. You'd better eat more fresh vegetables and fruits. Secondly, daily exercise helps to keep fit. Why not do more exercise in your spare time? As we all know, regular exercise is an important part of keeping healthy. Finally, make sure you get enough sleep and don't stay up late at night.
By eating properly and exercising regularly, you can keep a proper weight and keep healthy. I sincerely hope that my advice will help you and you will recover soon.
Best wishes.
You are sincere,
Li Hua
Test analysis: This is a letter. First, read the topic carefully. Suppose you are Li Hua, and your pen pal Jane has been feeling uncomfortable recently, so she wrote to ask you how to keep healthy. Please write back to her in English according to the following points. Key points: 1. Reasonable diet; 2. exercise; Get enough sleep and don't stay up late. So write in the first person and use the simple present tense. What you need to write, the beginning and the end have been given, but when writing, don't just be blunt translation points, but add some content to make the article look more substantial and form a smooth and coherent essay. Pay attention to the title of the article, and all the points given need to be included, which are indispensable. When writing, pay attention to the accurate use of tense, the contextual meaning is coherent and logical, and there can be no problem of disjointed articles. Try to use familiar word sentence patterns, and pay attention to the use of advanced vocabulary and advanced sentence patterns to make the article look more graded. At the same time, note that the number of words required for the topic is about 150, and the number of words written should not be too much or too little.
Comments: This article is a letter composition. Before writing, you must carefully analyze the main points and understand their meaning. We can't miss the main points and digressions. In addition to strengthening the connection between vocabulary accumulation and writing, we can also recite some similar model essays appropriately, which can get twice the result with half the effort in the exam.