World Book Day, also known as World Book and Copyright Day, is an annual event celebrated on April 23rd every year. It is organized by the United Nations Educational, Scientific and Cultural Organization to promote reading, publishing, and copyright.

　　WORLD BOOK DAY

　　2018年4月23日

　　世界读书日，也被称为世界图书和版权日，在每年的4月23日。它是由联合国教科文组织主办，目的在于在鼓励我们阅读，出版和保护版权。提到“书”，我们都能想到book这个词。但在英语中，book 还可以用在以下这几个短语中，可不要理解错了呀!

　　open book

　　If someone is an open book, it is easy to know what they are thinking and feeling.Open book 意思为极坦率的人;一目了然的事物。

　　有些同学一看到open book 就想翻译为打开书，那就大错特错啦!

　　It is just like you are reading an open book, you can read what the person is thinking or feeling easily.我们可以这样理解：打开书读书的时候你能了解别人的情感和思想，就引申为一目了然的事物。

　　例句

　　He is an open book.他是一个极其坦率的人。

　　I have no secrets. My life is an open book.

　　我没有什么秘密，我的生活都是人尽皆知的事情。

　　closed book

　　提到l了open book ，我们再来谈谈closed book.

　　Closed book means a subject about which you know or understand nothing.

　　Closed book 意为完全不了解的人;一无所知的事物.

　　例句

　　Politics is a closed book to me.

　　我对政治一窍不通。

　　This history of the town is a closed book.

　　这个城镇的历史没有人知道。

　　in my book

　　In my book 放于句首的时候，与in my opinion,I think 意思一样。意为“我认为”，后面加表达自己观点的句子。

　　例句

　　In my book, nothing is more important than staying together with our family.

　　在我看来，没有什么事情比与家人待在一起更重要了。

　　In my book, this is the best movie I have ever seen .

　　在我看来，这是我看过最好的电影。