5、peaceful区别(1).calm指天气、海洋等处于一种风平浪静的状态;若用于人,则指镇静或不慌张。如:After the storm it was calm.It is important to keep calm in an emergency.(2)quiet表示“安静的”、“寂静的”;指人时,表示不发出声音或不发表意见,也可指人的性格温和、文静。如:Mary is a quiet girl.。Can’t you keep the children quiet?He lives a quiet l
6、ife in the country.2. silent着重指沉默无语或没有声音如a silent film; a silentmachine; read silentlyYou’d better keep silent about this.3. still静止;别动Please sit still while I take your photo.It was very late and the night was still.5.concern:Afeelingofworryaboutsomethin