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Of all the animals in the animal kingdom, which one (aside from man) is the cleverest?
There are several ways of measuring the intelligence of animals. In one test a scientist sets three same cans on a table. While the animal watches, he puts food under one of the cans. Then he leads the animal away. Some time later, he brings it back to see if it remembers which can has the food. No smelling is allowed; the animal must go directly to the correct can or it fails.
This is called a delayed- response text. The idea is to find out how long an animal’s memory can keep information. The scientists would try showing the cans to the animal one hour later, or two hours later, or even a full day later. They discovered that chimpanzees and elephants had the best memory, and were able to remember the correct can for at least twenty hours. No other animal is close. Dogs came next, but they only remembered for nine hours.
To settle the matter, the scientists designed a huge maze (迷宫) and ran the chimps and elephants through it. The maze was very difficult, with many blind paths and dead ends. It took the chimps (chimpanzees) ten minutes to find their way out. The elephants needed half an hour. Even allowing for the elephants’ slower rate of speed, the test shows that chimpanzees are the cleverest animals.
From this and other tests, the scientists drew the following conclusion: an animal’s intelligence depends on the size of its brain in proportion (比例) to the size of its body. The elephant’s brain weighs ten pounds. But this is only 1/600th of its 6,000 pounds body. A chimp’s brain weighs about one pound, or 1/120th of its total body weight. So in proportion to its body size, the chimp has four times as much brain as the elephant----more brain for less body. The chimp is the champ!
51. Which is the best title ?
A. The Elephant’s Memory B. The Cleverest Animal
C. Judging Intelligence D. The Chimp’s Brain
52. The main idea of this passage is that ________.
A. there are several ways of measuring the intelligence of animals
B. chimps and elephants have the best memory
C. intelligence tests show that the chimp is the cleverest animal
D. the scientists designed a huge maze and ran the chimps and elephants through it
53. The delayed-response test is designed to test an animal’s________.
A. eyesight B. intelligence C. learning ability D. memory
54. The passage tells that elephants ________.
A. never forget things B. are more clever than chimps
C. are slower-moving than chimps D. have better memories than chimps
55. According to the passage, a rhinoceros (犀牛) that weighs 2100 pounds, and has a 3-pound brain is
________.
A. as clever as a chimp B. more clever than an elephant
C. less clever than an elephant D. as clever as an elephant
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科目: 来源: 题型:阅读理解
The Internet has led to a huge increase in credit-card fraud. Your card information could even be for sale in an illegal Web site. Web sites offering cheap goods and services should be regarded with care. On-line shoppers who enter their credit-card information may never receive the goods they thought they bought.
The thieves then go shopping with your card number or sell the information over the Internet.
Computers hackers have broken down security systems, raising questions about the safety of cardholder information. Several months ago, 25 000 customers of CD Universe, an on-line music retailer(批发商), were not lucky. Their names, addresses and credit-card numbers were posted on a Web site after the retailer refused to pay US $157 828 to get back the information.
Credit-card firms are now fighting against on-line fraud. Master card is working on plans for Web-only credit card, with a lower credit limit. The card could be used only for shopping on-line.
However, there are a few simple steps you can take to keep from being cheated.
Ask about your credit-card firm’s on-line rules: Under British law, cardholders are responsible for the first US $78 of any fraudulent spending.
And shop only at secure sites: Send your credit-card information only if the Web site offers advanced secure system.
If the security is in place, a letter will appear in the bottom right-hand corner of your screen. the Web site address may also start with https://-- the extra “s” stands for secure. If in doubt, give your credit-card information over the telephone.
Keep your password safe: Most online sites require a user name and password before placing an order. Treat your passwords with care.
36. What do most people worry about the Internet according to this passage?
A. A lot of stolen credit-cards were sold on the Internet. B. Fraud on the Internet.
C. Many Web sites are destroyed. D. Many illegal Web sites are on the Internet.
37. What is the meaning of “fraud”?
A. cheating B. sale C. payment D. safety
38. How can the thieves get the information of the credit-card?
A. The customers give them the information. B. The thieves steal the information from Web sites.
C. The customers sell the information to them. D. Both A and B.
39. How many pieces of advice does the passage give to you?
A. Four. B. Three. C. Five. D. Six.
40. You are shopping on the site: http: //www. shopping. com, and you want to buy a TV set, what does this article suggest doing?
A. Order the TV set at once. B. Do not buy the TV set on this site.
C. E-mail the site your credit-card information.
D. Tell the site your password and buy the TV set for you.
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Ⅳ 写作(共两节,满分40分)
第一节 基础写作(共1小题,满分15分)
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