同学你好，该知识点来自沪江网校《新概念英语1、2、3、4册连读【双11专享班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
seem是系动词。

1. seem + 形容词
Mr Black seems quite happy today. 布莱克先生今天似乎很高兴。

2. seem + 名词
That seems a good idea. 那似乎是个好主意。

3. seem + 不定式(短语)
He seemed to have known the truth. 他似乎早已知道事情的真相。
He seems to be thinking about something. 他似乎正在考虑某事。
Something seemed to be wrong with the train. 火车好像出了故障。
seem后跟不定式时，要注意不定式所表示动作发生的时间，以此来确定不定式的时态。如3中的to have...为不定式的完成式。
seem的否定式可在不定式前直接加not或借助do的相应否定形式来表达(放在seem前)。
She doesn't seem to like the idea. 她似乎不太喜欢这个想法。
They seemed not to know each other. 他们看起来好像互不认识。

4. It seems/seemed +that 从句
It seems that he is lying.看来他在撒谎.

祝同学学习进步~