catch和catch up和catch up with的区别(意义)与用法,with后面加什么额

catch和catch up with都有“赶上”的意思；
catch作“赶上”解时，主要是指“赶上汽车、火车等交通工具”或“赶上看。。。节目”。如：
You must run if you want to catch the bus.
If we go home now,we might catch the 10:00 news.
catch up with除了“追赶上同一方向行进的人之外，也可以用于抽象意义上的“赶上；赶上。。。的水平”。如：
You walk on ahead,I shall soon catch up with you .
After being out school so long,she had to work hard in order to catch up with the others.
catch up赶上（工作进度）；叙旧（即互相补上个人情况),用法与catch up with相近。
catch和catch up和catch up with后均跟人或物。