系动词look 与seem的区别

seem 是完全系动词，后面只能跟表语。look是半系动词，其后既可跟表语作系动词用法，也可跟宾语或状语作实义动词用。

look强调看起来
look + adj
seem强调像
seem+ adj
seem to do
it seems that 加句子 结构更多一些

look 有很多不同意思,包括
1.看,打量,注视,盯 (at).
Look!你瞧!看哪!
We looked but saw nothing.我们看是在看,可是什么也没有看见.
2.(带有述语) 显得,好像.
He looks sick 他显得有病的样子.
He does not look his age.他看上去不像是有这个年纪的人.
He looks very tired.他好像很疲倦.
He looks every inch a worker.他没有一处不像工人.
It looks as though we should have a storm.好像要有暴风雨.
It looks like rain.看来要下雨.
He looked happy 他喜形于色.
3.留心,注意；弄清,查明..
4.(房屋等)朝着,面向；(事实、情况等)倾向…,倾向…
The house looks (to the) south.这房子朝南.
Conditions look toward war.局势趋向战争.
seem 的意思是
好像,似乎,看来好像,好像是.
因此,在上面一个具体定义里,look 和 seem 有相同意思,
并可互换,例：
He looked happy = he seemed happy
He looks every inch a worker = He seems every inch a worker
希望帮到了你,