look强调看的动作, see强调看的结果; watch强调观看; read是读,不是看. 比方: Now, children, please ( look ) at me. Sorry, sir, i cannot (see ) it clearly. Mike (is watching ) TV. I love (reading ) Harry Potter most.
Don't look at the sun, it's bad for your eyes. Don't read in the sun, it's bad for your eyes. Let's watch TV together. Look over there. Can you see that bird in the tree?