deep

adj.深的；深远的，深奥；重大的，深刻的；强烈的，痛切的，深厚的。n.深处，深渊。

adv.深深地，深入地。例句：

deeply

adv.在深处；浓浓地；强烈地；精心地。deeply：只能做副词使用。

用法精要：

1、作为副词来讲，deep和deeply都有“深深地，深切地”的意思。但deep常用来表示具体的深度，如：sink deep、dig deep、study deep into the night、study deep into the subject 等。而deeply常用于引喻的场合，有时等于“程度上深深地，非常地，强烈地”的意思，如：

The water is very deep and mysterious-looking.水看上去幽深叵测。

He pushed the stick deep into the mud.

他把拐杖深深插进泥土里。

He stood with his hands deep in his pockets.

他双手深插在衣袋里站着。

The wardrobe was very deep.这个衣柜很深。

We found myself in water only three feet deep.我们发现脚下的水只有3英尺深。

I am deeply grateful to you. 我非常感激你。

I know that her condition hurt her deeply. 我知道这深深地刺痛着她。

We became the best of friends and he influenced me deeply 我们成了最好的朋友，他深深地影响了我。

I do feel deeply the strength of the collective. 我确实深深地感到了集体的力量。

She breathed in deeply. 她深深地吸了口气。

The doctor asked me to breathe deep.医生叫我深呼吸。

deep 有时也指抽象意义的“深”。

He gazed deep into her eyes.

他深深凝视着她的眼睛。

Mike learned English deep into the night.

麦克学习英语一直到深夜。

2、当修饰动作时，deep和deeply都可以用，但deep更为常用。形容静止状态时只用deep，不用deeply。修饰带有感情色彩的动词（如hate, dislike. love, admire, hurt, regret，等），通常要用deeply.

Mary was deeply moved by the film.

玛丽被电影深深地打动了。

They were deeply disturbed by the accident.

这个事故使他们深感不安

3、修饰形容词或过去分词等一般用deeply，不用deep，如：

We were all deeply disturbed when we heard the news.我们听到这个消息都深感不安。

4、在被动结构中，deeply 常用于过去分词之前；deep 常用于过去分词之后。如：

The oil-pipe lines were deeply buried.(＝The oil-pipe were buried deep.) 输油管深埋地下。

The miners were trapped deep under the ground.

矿工们被困在地下深处。

Even father was deeply moved by the film.

甚至于父亲也被电影深深打动了。

He was deeply involved with the anti-drugs crusade. 他深深地涉入了反毒品运动。