题目内容：

Every December， millions of Christmas cards go through the post office. There are pictures of stars or snow or Christmas trees. In these days it is hard to think of a Christmas without Christmas cards， yet a hundred and fifty years ago there was nothing at all. Here is just a story of the way in which they started. Some boys of those days at boarding school had to write a special piece of English at Christmas time. This was to be sent to their parents so they could see the boys’ work had got better during the year.

  Young people like to make little drawing in the paper when they write something. These boys were the same. They drew little pictures all around the writing. After a time the pictures become more important than the writing. These were the first Christmas cards.

1. Did people use Christmas cards 150 years ago?

2.What can we usually see on the Christmas cards?

3.At Christmas time， who did the boys at boarding school write something special to?

4.What did the boys draw around the writing?

5.What became more important later on the Christmas cards?