阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
On March 7，1907，the English statistician Francis Galton published a paper which illustrated what has come to be known as the "wisdom of crowds" effect. The experiment of estimation he conducted showed that in some cases，the average of a large number of independent estimates could be quite accurate.
ㅤThis effect capitalizes on the fact that when people make errors，those errors aren't always the same. Some people will tend to overestimate，and some to underestimate. When enough of these errors are averaged together，they cancel each other out，resulting in a more accurate estimate. If people are similar and tend to make the same errors，then their errors won't cancel each other out. In more technical terms，the wisdom of crowds requires that people's estimates be independent. If for whatever reasons，people's errors become correlated or dependent，the accuracy of the estimate will go down.
ㅤBut a new study led by Joaquin Navajas offered an interesting twist （转折） on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion，the averages from these groups were more accurate than those from an equal number of independent individuals. For instance，the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.
ㅤIn a follow﹣up study with 100 university students，the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates？Did they follow those least willing to change their minds？This happened some of the time，but it wasn't the dominant response. Most frequently，the groups reported that they "shared arguments and reasoned together." Somehow，these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain，the potential implications for group discussion and decision﹣making are enormous.
（1）What is paragraph 2 of the text mainly about？ ＿＿＿＿
| A． |
The methods of estimation. |
| B． |
The underlying logic of the effect. |
| C． |
The causes of people's errors. |
| D． |
The design of Galton's experiment. |
（2）Navajas' study found that the average accuracy could increase even if ＿＿＿＿
| A． |
the crowds were relatively small |
| B． |
there were occasional underestimates |
| C． |
individuals did not communicate |
| D． |
estimates were not fully independent |
（3）What did the follow﹣up study focus on？ ＿＿＿＿
| A． |
The size of the groups. |
| B． |
The dominant members |
| C． |
The discussion process. |
| D． |
The individual estimates. |
（4）What is the author's attitude toward Navajas' studies？＿＿＿＿
| A． |
Unclear. |
| B． |
Dismissive. |
| C． |
Doubtful. |
| D． |
Approving. |
College libraries are designed primarily for research and study. To explain its use, let us choose a research topic and follow the step-by-step procedure of looking up the material for the paper．
Suppose your assignment is to write a paper on a novel called The Sun Also Rises by American writer Hemingway．The first step is to go to the main catalog．Many small drawers on the large wooden cabinets are lined up in alphabetical(字母的) order．Each of the drawers contains hundreds of alphabetical ordered cards．These cards are printed references to all material available in the library．Title cards are cataloged by the first word of the book title, leaving out the articles like “a”, “an” and “the”．And then you get the cards for the books you need．On the upper left corner of each card is the call number．This is the numerical code that shows where the book is located in the library．The library has open and closed stacks．If your book is on the open stacks, you can go to the open-stack room, and according to the call number find it out by yourself．There are only about 30,000 books on open stacks, while most of the 800,000 books in our library are kept in closed stacks, which are accessible only to teachers and graduate students.
For undergraduates like you, borrowing books from the closed stacks have to be done with the help of our librarian．In that case, you must fill out a call slip(纸条) for the book, showing the call number, author and title．You can get call slips on tables near the catalog cabinets．You show your call slip together with your library card to a librarian at the information desk．He or she will help you find the book out in the closed stacks.What is the main purpose of this text?
| A．To present readers a brief introduction to a college library． |
| B．To guide readers how to find books needed in a college library. |
| C．To tell readers how to fill out a call slip in a college library. |
| D．To show readers where to find books in a college library. |
What letter you should look for on the title card for the book The Old Man and the Sea by the Hemingway?
| A．The letter “t”. | B．The letter “h”. | C．The letter “o”. | D．The letter “s”. |
How are books arranged and shelved in the library?
| A．By call numbers. | B．By call slips of authors’ names. |
| C．In alphabetical order. | D．By the first word of book title. |
Suppose you are an undergraduate and you want to borrow a book from the closed stacks, which is the correct order to do it?
a. go to the main catalog b. show your call slip and library card
c. find out the call number d. fill out a call slip
e. get the cards for the books
| A．a-b-e-d-c | B．b-a-c-d-e | C．a-e-c-d-b | D．b-c-a-e-d |
Here is a true story about a famous man who worked in the White House and a criminal. They once faced the same thing: their mother gave them apples when they were young.
The criminal said: one day, my mother brought some apples and asked my brother and me: “Which do you want?” “The reddest and biggest one,” my little brother said. My mother stared at him and said to him angrily: “You should learn to give the good things to others; you shouldn’t always think of yourself.” Seeing this, I suddenly changed my idea and then said to my mother: “Mum, please give me the smaller one and give the bigger one to my little brother.” Hearing my words, my mother was very happy. She kissed me on my face and gave the reddest and biggest apple to me as a prize. From then on, I learned to tell lies, fight, steal and rob. In order to get what I wanted, I played hard. As a result, I was sent into prison.
The famous man from the White House said: One day, my mother brought some apples. She said to my brother and me: “You all want the reddest and biggest one, right? Well, let’s have a competition. Now I divide the grassland in front of the gate into two and I will give one to each of you and you must shear(修剪) it well. And I will give the reddest and biggest apple to him who does it the most quickly and best.”
After the competition, I won and I got the biggest apple. In our family, as long as you want to get the best things, you must take part in competition. I think it is fair. No matter what you want, you must pay lots of efforts.The criminal got the reddest and biggest apple because .
| A．he told the truth that he wanted a smaller one |
| B．his mother loved him more than she loved the younger brother |
| C．elder brother should of course have the bigger one |
| D．he knew how to make his mother happy from her answer |
We can conclude from the passage that .
| A．it’s important to make children aware that no matter what they want, they must pay work |
| B．it’s wrong to ask children to choose apples when they are not old enough |
| C．it’s wrong to ask children not to always think of themselves |
| D．it’s always necessary to have a competition when we give children apple |
The writer tells the story by .
| A．organizing it in the order of time |
| B．making a comparison between two men |
| C．providing some scientific information |
| D．describing it in the order of space |
It is implied in the passage that .
| A．we should always try to win competitions which can bring us a lot |
| B．in order to get what we want, we should play hard |
| C．giving children apples will lead them to become criminals |
| D．a mother’s educational method has a great influence on a child’s growing |
The other day I heard a few local musicians talking:
“I hate all the terrible pianos in this town. I hate that rubbish they play on the radio. They can’t even understand a bit of music.”
“I’m never playing in that club again. Too many drunks and nobody listens to us.”
But, one younger musician said, “There are a few clubs that book my band a few nights a month, and I’m trying to find other places to play. I’m also looking to book a few summer festivals this year.”
I’ve heard that you are the average of the five people whom you spend the most time with, or to put it another way, you are who your friends are.
Attitudes are important. Whether they’re positive or negative, they’re rubbing off on you. If you’re around people who complain about lack of work and about other musicians, or blame (责怪) others, and you play the role of victim (受害者), chances are you will start to as well. So it’s time to take a look at the people you call “friends”.
This is an easy exercise: Make a list of the people who you hang out with, and simply stop spending time with the negative people on your list. Set a new standard (标准) for yourself and don’t become friends with people who fall below that standard.
Keep successful people around you and your own chances for success will be much better. Ask them how they do it. Ask if they will help you get the work you’re looking for, or maybe give you some advice to help you on your career path.Which of the following would be the best title for this passage?
| A．A friend in need is a friend indeed |
| B．How to make friendship last for ever |
| C．You are who your friends are |
| D．Friends are the most important in one’s success |
The underlined sentence “they’re rubbing off on you” in Paragraph 6 means ______.
| A．they’ll push you ahead |
| B．they’ll influence you |
| C．they’ll cover your shortcomings |
| D．they’ll help you achieve your goal |
The musicians’ words at the beginning are written mainly to show ______.
| A．the musicians’ living conditions are quite poor |
| B．people have poor taste in music |
| C．people have different attitudes towards the same thing |
| D．young people have greater chances of succeeding |
By taking the exercise mentioned in Paragraph 7, you can ______.
| A．improve a lot in making more friends |
| B．come to the right way of making friends |
| C．develop a better relationship with your friends |
| D．arrange the time with your friends properly |
The passage is mainly written for ______.
| A．musicians | B．managers |
| C．negative people | D．people wanting to succeed |
America is a mobile society. Friendships between Americans can be close and real, yet disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas greetings for a year or two, perhaps a few letters for a while — then no more. If the same two people meet again by chance, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand, because friendships between us flower more slowly but then may become lifelong feelings, extending (延伸) sometimes deeply into both families.
Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily.
Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives, they don’t show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans, however, express their welcome usually at homes, but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real. We will find ourselves treated hospitably.
For the Americans, it is often considered more friendly to invite a friend to their homes than to go to restaurants, except for purely business matters. So accept their hospitality at home! The writer of this passage must be ______.
| A．an American | B．a Chinese | C．a professor | D．a student |
Which of the following statements is TRUE according to the passage?
| A．Friendships between Americans usually extend deeply into their families. |
| B．Friendships between Americans usually last for all their lives. |
| C．Americans always show their warmth even if they are very busy. |
| D．Americans will continue their friendships again even after a long break. |
From the last two paragraphs we can learn that when we arrive in America to visit an American friend, we will probably be ______.
| A．warmly welcomed at the airport | B．offered a ride to his home |
| C．treated hospitably at his home | D．treated to dinner in a restaurant |
The underlined words “generous with our time” in Paragraph 3 probably mean ______.
| A．strict with time | B．serious with time |
| C．careful with time | D．willing to spend time |
A suitable title for this passage would probably be “______”.
| A．Friendships between Chinese |
| B．Friendships between Americans |
| C．Americans’ hospitality |
| D．Americans’ and Chinese’s views of friendships |
Teaching materials for learning Chinese are provided here. There are sites where you may find interesting instructions suitable for you. Here are some sites to begin your surfing.
You may start with these pages from this website — just to get a little taste of it without working too hard.
● A Is For Love
Flash cards for learning a few Chinese words
● Listening to the sound of Chinese
Play a few words of Chinese on your computer.
● A few Chinese words
Each word is enlarged for easy study.
If you are studying Chinese, these tools can help.
● Zhongwen site
More than a dictionary!
● Clavis Sinica
Excellent program by Professor David Porter. It displays a whole document in Chinese [GB] or [BIG5], and gives individual word’s definition, pronunciation as well as much more information when you click on that word. If you are studying Chinese, this is a very useful tool.
● Chinese Character Visual Dictionary
If you like to know more, go to the following sites on the Internet.
● The Chinese Outpost
Pronunciation, Character and Grammar By Mark Andrew Baker. The best. A must-visit site.
● Learn Cantonese / Mandarin Online
● Internet Based Chinese Teaching and Learning
● Rainland Kids discover Chinese — Site is in Germany
If you want to have a better understanding of China, go to this one.
● Wanfang Data
As an affiliate (分支) of Chinese Ministry of Science && Technology, Wanfang Data has been the leading information provider in China since 1950s. With a wide range of database resources and value-added services, Wanfang Data has become a gateway to understanding Chinese culture, medicine, business, science, etc.The underlined lines are probably some ______.
| A．books | B．websites |
| C．tips for learning Chinese | D．dictionaries for learning Chinese |
This passage is most probably from ______.
| A．a TV programme | B．a teacher’s lecture |
| C．a newspaper | D．the Internet |
If you want to know each Chinese character’s definition, pronunciation and much more information, you’d better surf ______.
| A．Zhongwen site | B．A Is For Love |
| C．Clavis Sinica | D．A few Chinese words |
If you want to know China about its culture, medicine, business, science, you’d better surf ______.
| A．Learn Mandarin online | B．Wanfang Data |
| C．Rainland kids discover Chinese | D．The Chinese Outpost |
The underlined word “gateway” in the last paragraph probably refers to ______.
| A．an opening in a wall that can be closed by a gate |
| B．a place through which you can go to another place |
| C．the space when a door is open |
| D．a means of getting or achieving something |
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