③deep与deeply
deep深,表示空间深度;deeply表示感情上的深度,意为"深深地"。
He pushed the stick deep into the mud.
他把棍子深深插进泥里。
Even father was deeply moved by the film.
连爸爸也被电影深深地打动了。
④high与highly
high表示空间高度;highly表示程度,相当于much。
The plane was flying high.这架飞机飞得很高。
I think highly of your opinion.
我对你的观点给予高度评价。
⑤wide与widely
wide表示空间宽度;widely意为"广泛地,宽广地;差距大地"。
He opened the door wide.他把门开得大大的。
English is widely used in the world.
英语在世界上被广泛使用。
⑥free与freely
free免费;freely无限制地,自由地。
You can eat free in my restaurant whenever you like.
无论什么时候,我的饭店免费对你开放。
You may speak freely;say what you like.
你可以畅所欲言,想说什么就说什么。
(2)friendly,lively,lovely,likely,orderly,sickly,motherly,fatherly等形式上为副词,而实际上为形容词。