here 和 there 虽为副词,但它们却可以与某些介词搭配,其中最典型的就是 in here 和 in there.
一、in here
in here 和here含义有所不同：in here 指“在这里面”,here 仅表示“在这儿”.
It is very hot here.这里很热.（可能指一个较大的范围）
It is very hot in here.这里面很热.（可能指一个较小的范围,尤其指一个相对封闭的范围）
根据语意的需要,我们也可以说 around here（在这附近,在这周围）,over here（到这边来）等.如：
Methane gas does collect in the mines around here.周围的矿井里的确有沼气聚积.
The majority of people around here are decent people.这里的大多数人都很正派.
Diana says you told her to come over here.戴安娜说是你让她到这儿来的.
Come over here and I’ll tell you a secret.你如到这儿来,我就告诉你一个秘密.
Don’t stay there in the corner by yourself.Come over here and talk to us.不要独自呆在角落里.过来跟我们聊聊吧.
但是,英语习惯上不能说 at here.
二、in there
in there与 in here 的用法差不多,意思指“在那儿里面”（尽管在具体翻译时不一定这样表达,但它的意思通常应这样理解）.如：
Get back in there,or you'll be sorry.滚回那边去,否则你会后悔的.
There's room in there for a family of five.那儿能住下五口之家.
Every aircraft in there has sustained some damage.那里的每架飞机都受到了一些损坏.
She nodded towards the drawing room.“He's in there.” 她朝客厅方向扬了扬头说：“他在那里面.”
There's room in there for a family of five.那儿能住下五口之家.