D Nov . 21 is World Hello Day. It was created by the United Nations just after the war between Israel and Egypt in 1973. Its aim is to encourage people to use communication rather than force to settle conflicts (解决争端) . The philosophy 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, the simple act of saying “ H ello ” to someone can truly make a lot of difference. You raise your head to someone as you pass by , say “ Hello ” . I t i s such a casual (不经意的) thing and requires so little effort , but y ou might even make his day. A lthough we might not realize it, a small thing like a greeting can mean a lot to a person. Some people are lonely because they ’ re shy. That leads to them feeling cut off. They find it difficult to communicate with people, even though they want to. The y may secretly smile in their heart after they hear your greeting s. I t ’ s a good idea, not just on Nov 21, but every day, to remember to say “ Hello ” to as many people as we can. No one said it better than the French writer Joseph Joubert: “ Politeness is the flower of humanity (人性) . ” 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. 1. World Hello Day was created by______ . A. Israel B. Egypt C. France D. United Nations 2. What does “ it ” in Paragraph 2 refer to? A. To say “ Hello ” . B. To pass by. C. To raise your head. D. To make his day. 3. Why do some people have difficulty communicating? A. Because they are shy. B. Because they are polite. C. Because they are strange. D. Because they are different. 4. Which one is TRUE according to the passage? A. Greeting requires a lot of effort. B. We can say “ Hello ” only on Nov. 21. C. S aying “ Hello ” w ill bring about world peace . D. W e can make the world better by greeting others. 5. The purpose of the writer is to______ . A. ask people to smile B. ask people to be polite C. encourage people to stop war D. encourage people to say “ Hello ”