【正文】 at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus, the limits of a person’s intelligence are fixed at birth, whether or not he reaches those limits will depend on his environment. This view, held by most experts now, can be supported in a number of ways. As is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people is, the closer they are likely to be in intelligence. (154 words)Passage 28 A Free Dress Every WeekThe temptation to steal is greater than ever before especially in large shops and people are not so honest as they once were. A detective recently watched a welldressed woman who always went into a large store on Monday mornings. One Monday, there were fewer people in the shop than usual when the woman came in, so it was easier for the detective to watch her. The woman first bought a few small articles. After a little time, she chose one of the most expensive dresses in the shop and handed it to an assistant who wrapped it for her as quickly as possible. The woman simply took the parcel and walked out of the shop without paying. When she was arrested, the detective found out that the shop assistant was her daughter.. Believe it or not, the girl “gave” her mother a free dress every week. (148 words)Passage 29Time Time is tangible. One can gain time, spend time, waste time, save time, or even kill time. Common questions in American English reveal this concrete quality as though time were a possession. “Do you have any time?”, “Can you get some time for this?”, “How much free time do you have?” The treatment of time as a possession influences the way that time is carefully divided.Generally, Americans are taught to do one thing at a time and may be unfortable when an activity is interrupted. In businesses, the careful scheduling of time and the separation of activities are mon practices. Appointment calendars are printed with 15, 30, and 60minute time slots. The idea that “there is a time and place for everything” extends to American social life. Visitors who drop by without prior notice may interrupt their host’s personal time. Thus, calling friends on the telephone before visiting them is generally preferred to visitors’ dropping by. (157 words)Passage 30 CartoonistIn a good cartoon, the artist can tell in a few lines as much as a writer can tell in half a dozen paragraphs. The cartoonist not only tells a story but he also tries to persuade the reader to his way of thinking. He has great influence on public opinion. In a political campaign, he plays an important part. Controversial issues in Congress or at meetings of the United Nations may keep the cartoonist wellsupplies with current materials.A clever cartoonist may cause laughter because he often uses humour in his drawings. If he is sketching a famous person, he takes a prominent feature and exaggerates it. Cartoonists, for instance, like to lengthen an already long nose and to widen an already broad grin. This exaggeration of a person’s characteristics is called caricature. The artist uses such exaggeration to put his message across. (144 words)Passage 31 Water PollutionWater is very important to us. Factories and plants need water for industrial uses and large pieces of farmland need it for irrigation. Without water to drink, people die in a short time.Today most water sources are so dirty that people must purify water before drinking. Water bees dirty in many ways: industrial pollution is one of them. With the development of industry, plants and factories pour tons of industrial wastes into rivers every day. The rivers have bee seriously polluted, and the water is being unfit for drinking or irrigation. The same thing has also happened to our seas and oceans. So, the problem of water pollution is almost worldwide.Scientists of many countries have done a lot of work to stop pollution. The polluted water in some places has bee clean and drinkable again. Perhaps one day the people in all towns and cities will be drinking clean water. That day, we believe, is not very far off. (161 words)Passage 32Making a ComplaintComplaining about faulty goods or bad services is never easy. But if something you have bought is faulty or does not do what was claimed for it, you are not asking for a favour to get it put right.Complaints should be made to a responsible person. Go back to the shop where you bought the goods, taking with you any receipt you may have. In a small store the assistant may also be the owner so you can plain direct. In a chain store, ask the manager. If you telephone, ask the name of the person who handles your enquiry, otherwise you may never find out who dealt with the plaint later. If you do not want to do it in person, write a letter. Stick to the facts and keep a copy of what you write. At this stage you should give any receipt number, but you should not need to give receipt or other papers to prove you bought the article. (164 words)Passage 33Where Do the British LiveNearly everyone in Britain would like to own their own home and, whether they do or not, they are prepared to put time and money into decorating and furnishing it or even making structural alterations to it. Because of the climate and because of the expense involved in going out for the evening, the British spend a lot of time at home and a large part of their social life takes place there.Young people tend to stay with their families longer these days as acmodation is expensive but, when they move away to a job or college, there are various options open to them. They can get lodgings with a landlady. This means that they rent a room in someone’s house and have breakfast with the family. They can also get a bedsitti