根据下面的诗歌，以“Reading is important"为主题改编成一篇70词左右的英语作文。

I love books because it keeps me company and helps expand my vocabulary.

Firstly, reading a book is like talking with its writer, and one can never be bored. Sweet stories in books can cheer me up, while the sad ones can earn my sympathy and pitty.

Secondly, reading books can expand my vocabulary. when i come across a new word, i can easily understand it with the help of its context. i can also learn the usage and memorize it firmly.

In sum, books are the love of my life,and it's the light that enlightens my life.