写英文周末作文时，可以按照以下步骤进行：

开头

可以用一句简单的话引出周末，例如：“I have a busy weekend.” 或者 “What do you usually do on weekends？”

主体

周六：

可以写你周六经常做的事情，比如：“On Saturday morning, I often do my homework at home.”

也可以写你计划做的事情，比如：“I’m going to visit my friends by car.”

周日：

可以写你周日经常做的事情，比如：“On Sunday morning, I often play the piano.”

也可以写你计划做的事情，比如：“We are going to watch TV together.”

结尾

总结一下你的周末，表达你对周末的感受，例如：“This is my weekend. I like my weekend. It's great!”

My Weekend

I have a busy weekend. On Saturday morning, I often do my homework at home. In the afternoon, I like to read books and relax. On Sunday, I often play with my friends. We play ping-pong in the morning and draw some pictures in the afternoon. Sometimes, we also go to the park or the movies. This weekend, I am going to visit my grandparents and have a big family dinner with them. I am looking forward to a fun and relaxing weekend.

希望这个示例能帮助你写出一篇优秀的英文周末作文!