I can't remember where the bookshop is ,i have to look at the map first .请问为什么要用look at the map 而不是read the map?

　　look at也是“看”的意思,但表示看什么具体的东西,而且at后面要接宾语.
　　He wanted to look at the outside world.
　　read---后面往往跟 书籍,报纸,杂志这类单词---books,magazines,newspapers
　　EG.He wantsto read books now.
　　look为不及物动词,强调看的动作,表示有意识地集中去看,但并不一定能看见,多用来唤起别人的注意,其后接宾语时,一定要加at,如：
　　Look What are they doing﹖ （看,他们在干什么?）
　　The teacher told us to look at the blackboard.（老师叫我们看黑板.）
　　read本为“读,朗读”,表达“看书、看报、看信、看杂志”时,通常也用read,如：
　　Don’t read in the bed.
　　（别躺在床上看书.）
　　Li Lei is reading the letter from his parents.