16．A.never B．ever

　　C．still D．yet

　　解析：选A　根据常识可知，此处指活到老，学到老，即学习从来都不晚。never意为"从不，决不"，符合语境。

　　17．A.In case of B．By means of

　　C．In spite of D．In addition to

　　解析：选D　根据语境可知，除了完成学业外，老人还实现了环游世界的梦想。D 项意为"除......之外"，符合语境。

　　18．A.camera B．computer

　　C．shaver D．bike

　　解析：选B　根据空格后的"Internet is no use for a dying man"可推知，此处指老人现在正在学习使用电脑。B项意为"电脑"，符合语境。

　　19．A.him B．her

　　C．it D．you

　　解析：选D　本句引用的是老人的同龄朋友对他开玩笑的话"像你这样大半截入土的人"。

　　20．A.alive B．awake

　　C．asleep D．alone

　　解析：选A　根据语境可知，此处是老人豁达地回答他的朋友话"但是我还活着"。A 项意为"活着的"，符合语境。

　　Ⅱ.语法填空

　　Finally it snowed. __1__ I looked out at the white blanket that covered the ground, I couldn't help but smile a bit. It was so beautiful. It softened the bare trees and hid the __2__ (die) grass. In the distance, I could hear the sound of the snow falling on the road, the barking of a happy dog, and the __3__ (laugh) of children playing outside, enjoying their day off from school.

The sweet music of that laughter brought __4__ a hundred memories of past winters. I remembered __5__ (catch) snowflakes on my tongue, building snowmen, making snow angels, sledding down hills, and always losing the snowball fights with my brothers and then my own three __6__ (child). Standing there in that warm coat of remembering made the wind __7__ (little) cold. I looked up, stuck out my tongue, and for __8__ first time in years caught a snowflake on it. It __9__ (taste) so fresh and clean. It was like youth, like joy, and