1. 用作名词，表示“书”，汉语的“看书”有两层含义。如：(1) 表示阅读性地“看书” (即读书)，一般要用动词 read。如：He is reading a book in his room. 他在房里看书。I’ve read yourbook with pleasure. 我已高兴地拜读了你的大作。(2) 不是表示阅读性地“看书”，而只是大概地看一看，比如看看书的封面、定价、内容提要等，或者回答问题时看看书的某些章节或字句等，或者是考试时偷看书本等，此时都不宜用动词 read, 而用 lookat, see等动词。如：Can I look at those books? 我可以看看那些书吗Can I look at those books? ? Jim demanded to see my books. 吉姆要求看看我的书。Please answer my questions without looking at your books. 请不看书回答我的问题。
Students must not look at their books duringexaminations. 学生考试不准舞弊。

 2. 用作动词，意为“预定”，可以用作及物或不及物动词。如：Seats (for the theatre) can be booked from 9 am to 6 pm. (剧院的)定座时间是上午9点至下午6点。Please book a ticket for Londonplease. 请订一张去伦敦的票。
You’d better book early for theplay. 你最好早点预定戏票。