阅读短文，从方框中选择行当的词并用其正确形式填空，使短文意思通顺、完整。请将答案写在短文后相应题号的横线上。每空限填一词，每词限用一次。方框中有两个词是多余的。

After a quick breakfast, I went into the lecture hall in a hurry．A famous teacher was 1. to the students．He was holding up a $100 bill．Then he said to the three hundred students，“Who would like this $1 00 bill?” The students put up 2.hands at once．Then he said，“I am going to give this $100 bill to one of you，but 3.，let me do this．”He made the bill into a ball．Then he said. “Who4. it now?” The hands went back into the air．“Well,” he said，“what if I do this?” and he 5. it on the floor and stepped on it．He picked up the 6.bill and said．“Who still wants it?” Hands went back again into the air．

“My friends,” he said，“you have learned a valuable(有价值的)7. today．No matter what I did to the $100 bill! Many  8. in our life，we are dropped and stepped on．We feel as if we are worth nothing．But remember, no matter what 9.  happened to you，you will never lose your value：You are 10. valuable to those people who love you．Your value doesn’t come from what you do or whom you know, but who you are．’’

先阅读短文，然后根据短文内容从方框内所给的单词中选择恰当的词（注意词形变化）填入短文空白处，使短文完整、通顺。一词只用一次，一空限填一词。方框中有两个词是多余的。将能填入空白处的答案写在答题卡上的相应题号后。

The world itself is becoming much smaller by using modern traffic and modern communication. Life today is much    【小题1】   than it was hundreds of years ago, but it has brought new problems. One of the biggest is    【小题2】    . To pollute means to make things dirty. Pollution comes in many ways. We see it, drink it and even hear it.
Man has been polluting the earth. The more people are, the more pollution is. Many years ago, the problem was not so 【小题3】    because there were not so many people. When the land was    【小题4】  up or the river was dirty in a place, men moved to another one. But this is no    【小题5】     true. Man is now slowly pollution the   【小题6】   world.
Air pollution is still the most serious. It’s bad to all living things in the world, but it is not    【小题7】  one kind of pollution. Water pollution   【小题8】    our fish and pollutes our drinking water. Noise pollution makes us become angry more easily.
Many countries are making rules to    【小题9】    pollution. They stop the people from burning coal in houses and factories in the city, and from blowing dirty smoke into the air. The pollution of SO2 is now the most dangerous problem of air pollution. It is caused by heavy traffic. It is certain that if there are fewer people driving, there will be   【小题10】   air pollution.
The earth is our home. We must take care of it. That means   【小题11】    the land, water and air clean.