不以ly结尾的副词

英语中大部分副词是在形容词的基础上加上ly词尾而形成，如：
clear – clearly (清楚的 ―― 清楚地)
angry – angrily （生气的　――　生气地）
suspicious – suspiciously (引起怀疑的; 可疑的 ――可疑, 可疑地)
curious – curiously (奇心的，感兴趣的 ―― 好奇地)

由于以ly结尾，所以大部分副词在句子中比较好辨认，有助于看清句子结构。但是，英语中也有少数副词不以ly结尾，阅读时应引起注意。例如：
Please drive slow, because I feel sick. 我有点不舒服，请开慢点。
He studied hard and later got a pretty good job overseas. 他努力学习，后来在海外获得一份不错的工作。

注意一些词有没有以ly结尾都可以作副词，但意思不同，如:
He was deeply moved by the dreadful suffering of the wounded. 伤者可怕的遭遇使他深受震撼。
They dived deep into the ocean. 他们深深地潜入海中。

He was so nervous and could hardly say a word. 他太紧张了，几乎说不出话来。
You can never be successful, unless you work hard. 如果不努力工作，你就永远不会成功。

This new approach is highly efficient. 这种新方法效率非常高。
I can’t jump that high. 我没法跳得那么高。

Susan seldom comes late. 苏珊很少迟到。
Fishing has been a profitable industry lately. 捕鱼近来成了很赚钱的行当。

Rivlin said the world economy has not fully recovered from the crisis.
里夫林认为，世界经济还没完全从危机中复苏。
They know full well that quality means a lot to their company. 他们很清楚质量对公司很重要。

The motion is quite natural and can be easily learned. 这个操作相当自然，而且很容易学会。
Just take it easy. It's no use getting fussed. 放松点，紧张了也没用。