C. He tried to influence others to be kind.

D. He feared the old man would refuse his help.

4. What the author really thinks absolutely beautiful is that ________.

A. an act of kindness could go wide spread

B. a cup of coffee could warm the old man

C. the server was very kind to customers

D. Ricky had created a good impression

【语篇解读】本文讲述自己的同事在一个寒冷的天气里帮助一个无家可归的老人，鼓励更多的人伸出友爱之手帮助他人。

This could be the perfect gift for the partner,who embarrasses you on the dance floor.Smart socks,which can teach to dance,may be the answer for anyone with two left feet.

The socks have been developed as a running tool to help runners improve their skills.Thanks to the socks,users can accurately record not only how far and fast they run but also how well.It means the user maximizes their performance,and reduces damage to body and prevents hurt.The hi-tech socks are made of special fibers that watch the movements of your feet.They look,feel and can be washed like normal clothes.

Sensors（传感器）record each movement and send it by an ankle transmitter（脚踝发射器）to a smart phone. Then a "virtual coach" application shows the information and can tell the user what they are doing wrong,and help to improve skill in any task with feet.

The socks should be useful to athletes and weekend joggers."People think running is so easy and of course everybody can do it but not necessarily safely and well,"Dr Davide Vigano said.A recent study showed that between 60 and 80 percent of runners got hurt per year.This is pretty much more than any other human