题目内容
Our brains work in complex and strange ways. There are some people who can calculate the day of the week for any given date in 40,000 years, but who cannot add two plus two. Others can perform complex classical piano pieces after hearing them once, but they cannot read or write.
Dr．J．Langdon Down first described this condition in 1887．He called these people idiot savants. An idiot savant is a person who has significant mental impairment （损伤） , such as in autism or retardation. At the same time, the person also exhibits some extraordinary skills, which are unusual for most people．The skills of the savant may vary from being exceptionally gifted in music or in mathematics, or having a photographic memory.
One of the first descriptions of a human who could calculate quickly was written in 1789 by Dr．Benjamin Rush, an American doctor．His patient, Thomas Fuller, was brought to Virginia as a slave in 1724. It took Thomas only 90 seconds to work out that a man who has lived 70 years, 17 days, and 12 hours has lived 2,210,500,800 seconds．Despite this ability, he died in 1790 without ever learning to read or write．
Another idiot savant slave became famous as a pianist in the 1860s. Blind Tom had a vocabulary of only 100 words, but he played 5 ,000 musical pieces beautifully．
In the excellent movie Rain Man, made in 1988 and available on video cassette, Dustin Hoffman plays an idiot savant who amazes his brother played by Tom Cruise, with his ability to perform complex calculations very rapidly.
Today we more clearly recognize that the idiot savant is special because of brain impairment．Yet not all brain impairment leads to savant skills．Some studies have shown that people who have purposeful interruption of the left side of the brain can develop idiot savant skills. However,few people wish to participate in such experiments. There are many excellent reasons for not undergoing unnecessary experimentation on one's brain. The term idiot savant is outdated and inappropriate. Virtually all savants have a high degree of intelligence and are thus not idiots.
48．What does the passage mainly talk about?
A．Idiot savants have areas of outstanding abilities．
B．Human Beings have complicated thinking process．
C．The brains of the idiot savants are partly impaired．
D．The reasons why people have wonderful skills vary．
49．Which of the following can be done by Rain Man?
A．He can play wonderful pieces of classical music．
B．He can guess out exactly the length of a man's life．
C．He can memorize the contents of the pictures fast．
D．He can count matches dropped on the floor quickly．
50．What can you infer from the passage?
A．Idiot savants have real talents for art and math．
B．Dr．Down is the first person who found idiot savants．
C．Few people wish to risk becoming savants by brain operations．
D．Intentional left brain impairments will surely lead to idiot savants．
48．A 49．D 50．C
raph 3 refer to?What will man be like in the future — in 5,000 or even 50,000 years from now? We can only make guesses, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.
Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is relatively a short period of time, so we may suppose that man will continue to grow taller. Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’s capacity(容量). As time goes on, however, we shall have to use our brains more and more, and finally we shall need our brains more and more, and finally we shall need larger ones! This is likely to bring a physical change too: the head, in particular the forehead, will grow larger.
Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over long period of time it is likely that man’s eyes will grow stronger.
On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.
But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald.
Perhaps all this gives the impression that future man will not be a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in common with us. He will still be a human being, with thoughts and motions similar to our own.
【小题1】The passage mainly tells us that __________.
| A．Man’s life will be different in the future |
| B．Future man will look quite different from us |
| C．Man is growing taller and uglier as time passes |
| D．Man’s organs’ functions will change |
| A．Man has got stronger eyes now than he ever had. |
| B．Man’s hair is getting thinner and thinner. |
| C．Man’s arms and legs have become lighter and weaker. |
| D．Man has been growing taller over the past 500 years. |
| A．he makes use of only 20% of the brain’s capacity |
| B．his brain has grown larger over the past centuries |
| C．he will use his brain more and more as time goes on |
| D．the other 80% of his brain will grow in due time |
| A．He is hairless because hair is no longer useful. |
| B．He has smaller eyes and wears better glasses. |
| C．His fingers grow weaker because he doesn’t have to make use of them. |
| D．He thinks and feels in a different way. |
| A．human beings will become less attractive in the future |
| B．body organs will become poorer if they are not used often |
| C．human beings hope for a change in the future life |
| D．future life is always predictable |
You are careful with your money: you collect all kinds of coupons; look for group-buy deals if you eat out; you don't buy clothes unless in a sale. Does all this make you a wise consumer?
Let's do the math first: you walk into a coffee shop and see two deals for a cup of coffee. The first deal offers 33 percent extra coffee. The second takes 33 percent off the regular price. What's the better deal? Well, they are about the same, you'd think. And you'd be wrong. The deals appear to be equal, but in fact, they are different. Here's the math: Let's say the standard coffee is 10 yuan and let's divide the amount of coffee into three portions(部分). That makes about 3.3 yuan per portion, The first deal gets you 4 portions for 10 yuan (2.5 yuan per portion) and the second gets you 3 portions of coffee for 6.6 yuan (2.2 yuan per portion) and is therefore a better deal.
In a new study published by the Journal of Marketing, participants were asked the same question, and most of them chose the first deal, the Atlantic website reported. Why? Because getting something extra for free feels better than getting the same for less. The applications of this view into consumer psychology(心理) are huge. Instead of offering direct discounts, shops offer larger sizes or free samples.
According to the study, the reason why these marketing tricks work is that consumers don't really know how much anything should cost, so we rely on parts of our brains that aren't strictly quantitative.
There are some traps we should be aware of when shopping. First of all, we are heavily influenced by the first number. Suppose you are shopping in Hong Kong. You walk into Hermes, and you see a 100,000 yuan bag. "That's crazy." You shake your head and leave. The next shop is Gucci, a handbag here costs 25,000 yuan. The price is still high, but compared to the 100,000 yuan price tag you just committed to your memory, this is a steal. Stores often use the price difference to set consumers' expectation. zxxk
Another trap we often fall to Is that we are not really sure what things are worth. And so we use clues(暗示) to tell us what we ought to pay for them. US economist Dan Ariely has done an experiment to prove this. According to the Atlantic, Ariely pretended he was giving a lecture on poetry. He told one group of students that the tickets cost money and another group that they would be paid to attend. Then he informed both groups that thelecture was free. The first group was anxious to attend, believing they were getting something of value for free. The second group mostly declined, believing they were being forced to volunteer for the same event without reward.
What's a lecture on poetry by an economist worth? The students had no idea. That's the point. Do we really know what a shirt is worth ? What about a cup of coffee? What's the worth of a life insurance.policy? Who knows? Most of us don't. As a result, our shopping brain uses only what is knowable: visual(祝觉的) clues, invited emotions, comparisons, and a sense of bargain. We are not stupid. We are just easily influenced.
【小题1】The first paragraph of the passage is intended to
| A．ask a question | B．introduce a topic |
| C．give some examples | D．describe a phenomenon |
| A．consumers usually fall into marketing traps |
| B．consumers' expectation is difficult to predict |
| C．consumers' purchasing power is always changing |
| D．consumers rely on their own judgment when shopping |
| A．The first number has little influence on which item should be bought. |
| B．Consumers never use visual clues to decide how much should be paid. |
| C．Getting something extra for free is better than getting the same for less. |
| D．Consumers never rely on parts of the brains that aren't strictly quantitative. |
| A．showing price differences | B．offering larger sizes |
| C．providing free samples | D．giving direct discounts |
| A．Ariely's free lecture enjoyed popularity among students. |
| B．The students actually didn't know what the lecture was worth. |
| C．The second group was willing to be volunteers without reward. |
| D．The first group was eager to find out the value of Ariely's lecture. |