他对她非常关心。

That's no concern of mine.

那不关我的事。

As far as I am concerned,you can do what you like.

就我而言，你想干什么就干什么。

【知识小结】

concern 可作名词或动词，一般不用于进行时态，其过去分词形式可用在一些搭配中表示各种含义。 

be concerned with sb./sth.

与某人（某事）有关联；参与

as far as...concerned　就......而言

【相关链接】

concerning 有关；涉及

concerning adj.担心的；挂念的

be concerned to do 一心想做

be concerned that 渴望......

4.devote...to...致力于......；献身于......

【典型例句】

He devoted himself to writing.

他专心于写作。

He was still devoted to the study of chemistry.

他仍专心致力于化学研究。

He has devoted his whole life to benefiting mankind.

他把一生都献给了造福人类的事业。

He is determined to devote himself to his scientific research.

他决心一生致力于科学研究。

【知识小结】

（1）devote oneself to （doing） sth."致力于......"，to为介词。

（2）be devoted to..."专心致志于......；献身于......",（to 为介词）。

5.behave v.举止；表现

【典型例句】

The young lady behaved courageously in the face of danger.

那位年轻女士面对危险表现得十分勇敢。

How is the new machine behaving?

新机器的性能怎样?

The chemical can behave as an acid.

这种化学制品能起酸的作用。

Behave yourself!

规矩点!

You should learn to behave.

你应该学会举止得体。

【相关链接】

behave like a gentleman举止像绅士

behave badly 行为不良