take为人所知的细节问题 take a serioustake 是动词还是系动词serious是形容词还是名词take

1.动词
2.形容词
3.要放在语境中解释吧.比如：认真看看.Take a serious look.
4.当然有,例如 receive an email,borrow a book
take a serious=动词+a+形容词,所以要再加上名词才可以
5.感觉你是记错了.有一个用法是take (it) seriously 解释为认真地对待某人某事物.要放在语境中才可以.
例如:
I want you to check the numbers and take this task seriously.
总之,take+a+adj./serious+noun
take+sth./sb.+seriously
Let us take a serious...这是祈使句,固定的句型是Let sb.do (sth.).
Let me go.Let me have a look.Let us take a serious consideration.

如果你说的这个句子确实存在，那这是个省略句。这句话的完整形式是let's take it for a serious thing。let's也可以不写，如果那样的话就是祈使句，take用动词原形。