catch 的用法： catch (caught caught) catch at 试图抓住/拼命抓 catch hold of (1) catch on 流行起来.理解/明白 eg:He is a good student and he really catches on fast. 他的确是个好学生，对知识吸收领会得非常快. catch one’s breath 屏息/透不过气来 catch out 发觉...有错误(或做坏事) catch up with 赶上.对...产生恶果 catch up with是指从后面赶上来.keep up with 是指保持在同一个水平上，不落伍. eg: I had to work hard to catch up the others, after missing a term. 休学一学期后，我必须努力用功，以赶上其他同学. He walked so fast so that she couldn’t keep up with him. 他走得很快，使得她无法跟上. *其中overtake 也有赶上之意. catch one’s eye 引起某人注意 eg:The mistakes in this book caught John’s eye. 书中的错误引起了约翰的注意. catch sight of (2) eg: when he catches sight of her, the sweet memory comes into his mind again. 当他看到她时，甜蜜的回忆再次浮现在他脑海里. catch the attention of (3) eg: If he was going to write scripts,it had to catch the attention of a producer. 如果他要写剧本，必须要引起某个制片人的注意.