A
(2019·贵阳监测)Nov. 21 is World Hello Day. It began back in the 1970s as part of an effort to make the world more peaceful. It was created just after the war between Israel and Egypt in 1973. The philosophy (哲学) behind it is：Say “Hello” and stop war.
It sounds like a fine idea, but most of us know that simply saying “Hello” won’t bring about world peace. Still, on a smaller range, the simple act of saying “Hello” to someone can make a lot of difference.
This might not be obvious. After all, it’s such a casual thing and requires so little effort. You raise your head to someone as you pass by them in the school corridor(走廊), say “Hello”， and then it’s over.
Although we might not realize it, a small thing like a greeting can mean a lot to a person. Many people are lonely because they’re shy. They find it difficult to communicate with people, even though they want to. It leads to them feeling cut off.
On this basis, maybe it’s a good idea, not just on Nov. 21, but every day, to remember to say “Hello” to as many people as we can. The stranger who hears your greeting may secretly smile in their heart. You might even make their day.
Greeting other people is the easiest way to be polite．Politeness is the way we individual humans link up with the rest of the human world outside of our circles of family and friends. Politeness is one of the aspects of culture that make us a society rather than just many individuals living in the same space.
No one said it better than the French author Joseph Joubert：“Politeness is the flower of humanity．” A “Hello” to a stranger is a small thing, and often neglected(忽视), but through it we can make the world better for another person.
【解题导语】 本文是一篇说明文，主要介绍了世界问候日的由来及意义。
1．What is World Hello Day intended for?
A．Philosophy． B．Peace.
C．Politeness. D．War.
B 解析：细节理解题。根据第一段中的“Nov．21 is World Hello Day．It began back in the 1970s as part of an effort to make the world more peaceful．”可知， 世界问候日设立的初衷是为了和平。
2．What has an effect on people most?
A．Raising heads to others.
B．Doing something casually.
C．Meeting in the school corridor.
D．The simple act of saying “Hello”.
D 解析：细节理解题。根据第二段第二句“Still, on a smaller range, the simple act of saying ‘Hello’ to someone can make a lot of difference．”可知， 对别人影响最大的是打招呼这种简单的行为。
3．Why do some people feel lonely?
A．They are unwilling to communicate with others.
B．They are too shy to communicate with others.
C．They are very fond of living alone.
D．They don’t like doing things as others do.
B 解析：推理判断题。根据第四段中的“Many people are lonely because they’re shy...cut off．”可知， 一些人感到孤独的原因是他们太害羞了，不敢和别人交流。
4．What can we learn from the last paragraph?
A．We should neglect a small thing.
B．Saying “Hello” to others is powerful.
C．The flowers make the world better.
D．No one is better than Joseph Joubert.
B 解析：推理判断题。根据最后一段中的“A ‘Hello’ to a stranger is a small thing, and often neglected(忽视), but through it we can make the world better for another person．”可知，向别人打招呼是有影响力的。
