写作思路：首先描写春节的基本信息，然后描写主要来源，最后描写相关习俗。

范文：The Spring Festival is the most important festival for the Chinese people and is when all family members get together，just like Christmas in the West.春节是中国人最重要的节日，是所有家庭成员团聚的日子，就像西方的圣诞节一样。

The Spring Festival falls on the 1st day of the 1st lunar month，often one month later than the Gregorian calendar.It originated in the Shang Dynasty（c.1600 BC-c.1100 BC）from the people＇s sacrifice to gods and ancestors at the end of an old year and the beginning of a new one.春节是农历正月初一，通常比公历晚一个月。

它起源于商代（约公元前1600年－约公元前1100年），人们在一个旧的一年结束和一个新的一年开始时祭祀神和祖先。

Strictly speaking，the Spring Festival starts every year in the early days of the 12th lunar month and will last till the mid 1st lunar month of the next year.Of them，the most important days are Spring Festival Eve and the first three days.Most people will have a week off，thus，this time is known as golden week.严格地说，春节从每年农历十二月初开始，一直持续到明年农历正月初一，其中最重要的日子是除夕和前三天，大多数人都有一周的假期，因此，这个时间被称为黄金周。