[A] 形容词
(1) Is English a hard language to learn?困难的
(2) The ground is too hard to dig.硬
(3) a hard life; hard times.艰难的
(4) The water is hard in this part of the country.硬水
[B] 副词
(1) He works very hard; Think hard.努力地
(2) Don't hit him too hard 重重地
(3) He stared hard at the man.紧紧地
[C] harden =动词:The earth was hardened...
词典上hard的用法如下：
a.形容词
1.硬的,坚固的
The ice is as hard as rock.
冰像石头一样硬.
2.困难的,费力的[+to-v]
George is hard to get along with.
乔治很难相处.
3.猛力的;辛苦的
He gave the door a hard kick.
他猛力踢门.
4.刻苦的;努力的[B]
She is a hard worker.
她是一个工作十分勤奋的人.
5.艰难的;难受的
I know that he has a very hard life.
我知道他日子过得很艰难.
6.冷酷无情的;严厉的;严格的[(+on)]
She is too hard on her pupils.
她对学生太严格了.
7.(气候)酷寒的
It was a hard winter.
那是一个严寒的冬天.
8.【语】发硬音的(如c,g念成[k][g])
9.(水)硬质的
10.(毒品)毒性强的,使成瘾的[B]
11.确实的;不容怀疑的[B]
We confronted him with hard facts.
我们把铁的事实摆在他的面前.
12.【军】设重防的;(导弹发射场或导弹)设于地下可免受敌方空袭的
ad.副词
1.努力地;艰苦地
She tried hard,but failed.
她努力尝试过,但未能成功.
2.猛烈地;重重地
It's raining hard.
雨下得很大.
3.困难地;困苦地
The old man is breathing hard.
这位老人呼吸困难.
4.牢固地,紧紧地
He held hard on to the rope.
他牢牢抓着绳子.
5.接近地;立即地
One misfortune followed hard on another.
不幸接踵而来.
