文章一开头，，就交待清楚文章的主题是什么。如How I Spent My Vacation(我怎样度假)的开头是：
I Spent my last vacation happily．
Honesty is one of the best virtues．An honest man is always trusted and respected．On the contrary, one who tells lies is regarded as a liar，and is looked upon by honest people．
在文章的开头，先把人物、事件和环境交待清楚。例如A Trip to Shantou (去汕头旅游)的开头：
The day before yesterday my class went on a bus trip to Shantou. The bus ride there took three hours. The long trip made us very tired, but the sight of the beautiful sea refreshed us.
即对要在文章中叙述的人或事先作一个概括性的介绍。(英语作文 www.yingyuzuowen.com)如The Happiness of Reading Books(读书的快乐)的开头：
People often say that gold and silver are the most valuable things in the world. But I say that to read books is more valuable than anything else, because books give us knowledge and knowledge gives us power.
It was a rainy and windy morning. The sky was gloomy, the temperature was low, and the street was nearly empty. I was on my way back to school. Suddenly, a speeding car came round the corner.
在文章的一开头就交待写作目的，如通过文章要表扬谁，批评谁，或说明一个什么问题等。如 Pollution Control (控制污染)的开头：
In this article I shall draw your attention to the subject of pollution control.