American people like to say "Thank you " or say something kind when others help them．People of many countries do so，too．It is a very good habit．
    You should say"Thank you'when someone passes you the salt on the table，when someone walking ahead of you keeps the door open for you and when someone says you always do your work well or you have a nice thing or your city is very beautiful．“Thank you”is used not only between friends，but also between parents and children，brothers and sisters．
    “Excuse me”is another short sentence they use．When you hear someone says“Excuse me”behind you，you know that someone wants to walk past you without touching you．It’s not polite to break(打断)others when they are talking．If you want to speak to one of them。say‘Excuse me’first，and then begin talking．You should also do so when you begin to cough or make any noise before others．
Let‘s learn to say‘Thank you’and‘Excuse me’．

2008年3月，温家宝总理在“两会”做的政府工作报告指出，今年要深入贯彻落实科学发展观，更加重视加强和改善宏观调控，更加重视推进改革开放和自主创新，更加重视调整经济结构和提高发展质量，更加重视节约资源和保护环境，更加重视改善民生和促进社会和谐，推进社会主义经济建设、政治建设、文化建设、社会建设，加快全面建设小康社会进程。从材料中我们可以看出全面建设小康社会的目标包括（　　）

①经济更加发展  ②民主更加健全  ③科技更加进步，文化更加繁荣  ④社会更加和谐  ⑤人民生活更加殷实

6件产品中有2件次品与4件正品，从中任取2件，则下列可作为随机变量的是（　　）

下列人物与情节搭配不当的一项是（     ）