that is it is it is for this is for的区别及用法

问题描述:

that is it is it is for this is for的区别及用法

这是一个不需要纠结的问题.因为本身没有太多的区别.
it is可以替代that is.that is意思是“那是”it is的意思是“这是“,“那是”,”它是”在明确的所指物时,用it就可以了.如果是第一次指出某物,为了明确或者强调它,要用this或者that.
this is for ,和it is for 也是同样的道理