still 通常表示人或物的静止，而不表示心理上的平静，主要指完全无声或完全无动作。 The little girl kept still in her chair watching TV. 小女孩一动不动地坐在椅子上看电视。

silent 着重指沉默无语或没有声音，但不一定指没有动作或活动，如 a silent film ＂无声电影＂，a silent machine ＂没有噪音的机器＂等。 He was silent for a moment, then began to answer the question. 他沉默了一会儿，然后开始回答问题。 【巧学妙记】

【一言辨异】

When facing danger, one should keep calm; when taken photos, one should keep still; when someone else is asleep, one should keep quiet; in class, one shouldn't keep silent about the teacher's questions. 当面对危险时，要保持冷静；照像时，要保持不动；其他人睡觉时要保持安静；而在课堂上，不应该对老师的问题保持沉默。

1. (2016·新课标全国卷I改编)They (then) heard a woman's voice coming from the wrecked(毁坏的) vehicle. (Approaching) the vehicle, they saw that a woman was trying to get out of the broken window. They told her to stay ____________ until the emergency personnel arrived, (but) she thought the car was going to (explode). Larry told her that he had already put out the fire and she should not move (in case) she injured her neck.

　A. quiet B. still C. away D. calm

2. 用calm, quiet, still或silent及其派生词填空

　①You'd better keep ____________ about this.

　②Please sit ____________ while I take your photo.

③Can't you keep the children ____________?