C.people can communicate freely with each other by smiling，frowning or nodding

D.body language is more important than spoken language

答案　A

1.ease

[语境感悟]

(1)(教材P30)The most universal facial expression is，of course，the smile-its function is to show happiness and put people at ease.

最普遍使用的面部表情当然是微笑--其作用是表示快乐和使人放松。

(2)They are expected to win the election with ease.

预计他们在竞选中能够轻易获胜。

(3)Take your ease，for the journey ahead will be long.

好好休息一下，前面的路程还很长。

(4)Do write to your mother to ease her of her worry.

务必给你妈妈写封信，别让她担心。

[归纳拓展]

ease n.安逸；舒适；vt.减轻痛苦、忧虑

at ease舒适；快乐；自由自在

with ease 轻易地；毫不费力地

take one's ease使某人放松一下

ease sb.of sth.减轻某人的痛苦、负担等 [易混辨析]　at ease/with ease

(1)at ease悠闲，安适，舒适，相当于comfortably。

(2)with ease容易地，相当于easily。

[即时跟踪]

(1)完成句子

①现在他可以放心了，因为他已经轻松地通过了考试。

Now he can set his mind at ease because he has passed the examination with ease.

②散步有助于减轻他的疼痛。

Walking helped to ease him of his pain.

(2)单句改错