请根据下面的提示和要求写一篇说理文。

提示：
(1) 英语是世界上使用最广泛的语言之一。讲英语的人近三亿。
(2) 英语是国际会议中使用得最多的工作语言。世界上有百分之六十的电台和百分之七十的邮件（mail)用英语。数以百万计的书籍和杂志是用英语写的。
(3) 借助英语可以更快、更好地学习现代科学和技术。学好英语，我们可以更好地为祖国服务。
要求：
(1) 题目：我们为什么学习英语？
(2) 字数：120左右。

参考范文

Why Do We Study English?

    English is one of the most widely used languages in the world. It is spoken by nearly three hundred million people： in England, the United States, Australia, Canada and many other countries. It is one of the working languages at international meetings and is more used than the others. It is said that 60 percent of the world’s radio broadcasts and 70 percent of the world’s mail are in English. Millions of books and magazines are written in English, too. English is really a bridge to knowledge. With the help of English we can learn modern science and technology faster and better form the developed countries. In this way we can serve our country better.