请讲解一下For the first time 与 the first time的区别

告诉你个很简单的辨别方法,我通常都这么跟学生讲的:
for the first time是个时间状语,yesterday怎么用,放在什么地方,for the first time就能放在什么地方.
the first time则是引导时间状语从句,when怎么引导时间状语从句的,the first time就能放在什么位置.
考试时把你熟悉的yesterday,when带进去看看语法对不对就可以了.
I saw the film for the first time.
THe first time I saw the film,I loved it very much.