seem的三种重点用法：主语+seem+（to be）+表语；主语+seem+不定式；It seems+that从句；There+seem to be+名词。
seem用法1.“主语+seem+（to be）+表语”，表语多为名词或形容词，有时是其他的词或短语，以说明主语的特征或状态。例如：
Tom seems （to be）a very clever boy.汤姆看上去是一个非常聪明的男孩。
2.“主语+seem+不定式”，此句型中的seem与不定式一起构成复合谓语。例如：
Mrs Green doesn’t seem（或seems not）to like the idea.格林夫人似乎不太喜欢这个主意。
3.“It seems+that从句”，其中it是形式主语，that引导主语从句。例如：
It seems that no one knows what has happened in the park.似乎没有人知道在公园里发生了什么事。
4.“There+seem to be+名词”，其中to be可省略。seem的单复数形式要根据后面作主语的名词的单复数形式而定。例如：
There doesn’t seem to be much hope of our beating that team.看来我们战胜那个队没有多大希望。
常用句型1.主语+seem+(to be)+表语
用于说明主语的特征或状态，表语多为名词或形容词，有时是其他的词或短语。
Tom seems(to be)a very clever boy.
2.“主语+seem+不定式”
此句型中的seem与不定式一起构成复合谓语。
The young man seemed to have changed much.
3.It seems+that从句。it是形式主语，that引导主语从句。
It seems that no one knows what has happened in the park.
4.There seem to be+名词
to be可以省略，seem的单复数形式要根据后面作主和的名词的单复数形式而定。
There doesn't seem to be much hope ofour beating that team.
