3.illness,sickness,disease
1)illness指患病的状态。例如:
She died after a long illness.
2)disease指具体的某一疾病。例如:
Many diseases are caused by bacteria.
They were more likely to die from childhood diseases.
3)sickness通常指"身体不适",或者"呕吐、恶心"等。例如:
Does the doctor know what his sickness is.
He felt a wave of sickness come over him.
4.calm,quiet,silent,still
1)calm指天气、海洋等时,表示一种无风无浪的"平静";指人时,表示镇静平和的心情。例如:
He remained calm.
After the storm the sea was calm again.
2)quiet指没有动静,没有噪音,尤指没有骚动的安宁状态。例如:
Everything was quiet.
Keep quiet.
3)silent用于事物时,侧重没有声响;用于指人时,强调少言寡语。例如:
That's a silent film.
Why do you keep silent.
4)still侧重于"不动"、"静止"时,与calm,quiet,silent不能替换;侧重于"无声"时,可与quiet替换。例如:
Please keep still while I take a photo of you.
How still(quiet)everything is!
