1）close与closely：
close意思是“近”；closely意思是“仔细地”。
如： He is sitting close to me.
Watch him closely.
2）late与lately：
late意思是"晚"；lately意思是“最近” 。
如：You have come too late.
What have you been doing lately?
3）deep与deeply：
deep意思是“深”，表示空间深度；deeply时常表示感情上的深度，“深深地” 。
如：He pushed the stick deep into the mud.
Even father was deeply moved by the film.
4）high与highly：
high表示空间高度；highly表示程度，相当于much。
如：The plane was flying high.
I think highly of your opinion.
5）wide与widely：
wide表示空间宽度；widely意思是“广泛地”，“在许多地方”。
如：He opened the door wide.
English is widely used in the world.
6）free与freely：
free的意思是“免费”；freely的意思是“无限制地”。
如：You can eat free in my restaurant whenever you like.
You may speak freely, say what you like.
