The end justifies the means．［谚］只要目的正当，可以不择手段。
pot n．罐，壶
windbox n．窗台上的花盆箱，窗槛花箱 pastime n．消遣，娱乐
Swimming Is my favorite pastime．游泳是我最喜欢的一种娱乐。
Passage 4
British and American Police Officers
Real policemen, both in Britain and the U. S., hardly recognize any common points between their lives and what they see on TV---if they ever get home in time.
Some things are almost the same, of course, but the policemen do not think much of them.
The first difference is that a policeman's real life deals with the law. Most of what he learns is the law. He has to know actually what actions are against the law and what facts can be used to prove them in court. He has to know nearly as much law as a lawyer, and what's more, he has to put it into practice on his feet, in the dark and, running down a narrow street after someone he wants to talk to.
Little of his time is spent in talking with beautiful girls or in bravely facing cruel criminals. He will spend most of his working life arranging millions of words on thousands of forms about hundreds of sad, ordinary people who are guilty-or not of stupid, unimportant crimes. (177 words) Useful Words and Expressions: think much of 重视，尊重 in court 在法庭上 criminal n．罪犯，犯罪者 guilty adj．犯罪的，有罪的 gulty look内疚的神色 the guilty party犯罪一方 a guilty conscience犯罪感
have a guilty conscience问心有愧；做贼心虚 be found gulty被判决有罪 be guilty of a crime犯了罪 Passage 5
Living Space
How much living space does a person need? What happens when his space needs are not met? Scientists are doing experiments on rats to try to determine the effects of overcrowded conditions
on man. Recent studies have shown that the behaviour of rats is greatly affected by space. If rats have enough living space, they eat well, sleep well and produce their young well. But if their living conditions become too crowded, their behaviour and even their health change obviously. They can not sleep and eat well, and signs of fear and worry become clear. The more crowded they are, the more they tend to bite each other and even kill each other. Thus, for rats, population and violence are directly related. Is this a natural law for human society as well? Is enough space not only satisfactory, but necessary for human survival? These are in teresting questions. (147 words) Useful Words and Expressions: determine V．测定；决心；决意 determine the velocity测定速度 He determined to go．他决意要去。
I am determined to do better than Mike.我决心比迈克做得更好。 tend to v. 有某种倾向；有……的趋势
He tends to pitch the ball too high．他往往把球掷得过高。 People under stress tend to express their full range of potential. 处于压力下的人容易发挥自己全部的潜力。 survival n.生存
We need food and water for survival.我们为了生存需要食物和水。
Passage 6
The United Nations
In 1945, representatives of 50 nations met to plan this organization. It was called the United Nations. After the war, many more nations joined.
There are two major parts of the United Nations. One is called the General Assembly, m the General Assembly, every member nation is represented and has an equal vote.
The second part is called the Security Council. It has representatives of just 15 nations. Five nations are permanent members: the United States, Russia, France, Britain, and China, The 10 other members are elected every two years by the General Assembly.
The major job of the Security Council is to keep peace in the world. If necessary, it can send troops from member nations to try to stop little wars before they turn into big ones. It is hard to get the nations of the Security Council to agree on when this is necessary. But they did vote to try to stop wars. (156 words)
Useful Words and Expressions: Representative n．代表
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