One possible version：

My Good Friend

I have a good friend. His name is WangXiang. He is a student. He is fourteen years old. He lives in Guangdong in China. He is tall with a round face ,a wide mouth and big eyes. His father is an office worker and his mother is a nurse. His brother is 12 years old and he is a student, too. His favorite food is chicken. He usually has rice, fish and vegetables for dinner.

题目分析：

这是一篇给材料作文，介绍我的好朋友。结合所给材料，可知本文主要考查一般现在时态，人称为第三人称单数，注意主谓一致问题，句子结构主要为系表结构，注意一些常见句式的应用，比如：He is ……， His father is ......及He usually has 等句式的应用。写作中注意运用代词，注意多种句式交替运用。写作中注意叙述顺序，符合逻辑关系。

【亮点说明】本文结构紧凑，语言简练。开头介绍了我的朋友的名字，接下来介绍他的家人，最后介绍他喜欢的食物。此处用了 with a round face， favorite food，has rice 等这些词组的运用也让文章增色不少。