1 . 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.

This 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.

But 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.

In 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.

2 . Bike Rental & Guided Tours

Welcome to Amsterdam, welcome to MacBike. You see much more from the seat of a bike! Cycling is the most economical, sustainable and fun way to explore the city, with its beautiful canals, parks, squares and countless lights. You can also bike along lovely landscapes outside of Amsterdam.

Why MacBike

MacBike has been around for almost 30 years and is the biggest bicycle rental company in Amsterdam. With over 2,500 bikes stored in our five rental shops at strategic locations, we make sure there is always a bike available for you. We offer the newest bicycles in a wide variety, including basic bikes with foot brake (刹车), bikes with hand brake and gears (排挡), bikes with child seats, and children’s bikes.

Prices

	Hand Brake, Three Gears	Foot Brake, No Gears
1 hour	€7.50	€5.00
3 hours	€11.00	€7.50
1 day (24 hours)	€14.75	€9.75
Each additional day	€8.00	€6.00

Guided City Tours

The 2.5-hour tour covers the Gooyer Windmill, the Skinny Bridge, the Rijksmuseum, Heineken Brewery and much more. The tour departs from Dam Square every hour on the hour, starting at 1:00 pm every day. You can buy your ticket in a MacBike shop or book online.

1. What is an advantage of MacBike?

A．It gives children a discount.	B．It offers many types of bikes.
C．It organizes free cycle tours.	D．It has over 2,500 rental shops.

2. How much do you pay for renting a bike with hand brake and three gears for two days?

A．€15.75.

B．€19.50.

C．€22.75.

D．€29.50.

3. Where does the guided city tour start?

A．The Gooyer, Windmill.	B．The Skinny Bridge.
C．Heineken Brewery.	D．Dam Square.

3 . Yellowstone National Park offers a variety of ranger programs throughout the park, and throughout the year. The following are descriptions of the ranger programs this summer.

Experiencing Wildlife in Yellowstone (May 26 to September 2)

Whether you’re hiking a backcountry trail (小径), camping, or just enjoying the park’s amazing wildlife from the road, this quick workshop is for you and your family. Learn where to look for animals and how to safely enjoy your wildlife watching experience. Meet at the Canyon Village Store.

Junior Ranger Wildlife Olympics (June 5 to August 21)

Kids can test their skills and compare their abilities to the animals of Yellowstone. Stay for as little or as long as your plans allow. Meet in front of the Visitor Education Center.

Canyon Talks at Artist Point (June 9 to September 2)

From a classic viewpoint, enjoy Lower Falls, the Yellowstone River, and the breathtaking colors of the canyon (峡谷) while learning about the area’s natural and human history. Discover why artists and photographers continue to be drawn to this special place. Meet on the lower platform at Artist Point on the South Rim Drive for this short talk.

Photography Workshops (June 19 & July 10)

Enhance your photography skills — join Yellowstone’s park photographer for a hands-on program to inspire new and creative ways of enjoying the beauty and wonder of Yellowstone.

6/19 — Waterfalls &Wide Angles: meet at Artist Point.

7/10 — Wildflowers &White Balance: meet at Washburn Trailhead in Chittenden parking area.

1. Which of the four programs begins the earliest?

A．Photography Workshops.	B．Junior Ranger Wildlife Olympics.
C．Canyon Talks at Artist Point.	D．Experiencing Wildlife in Yellowstone.

2. What is the short talk at Artist Point about?

A．Works of famous artists.	B．Protection of wild animals.
C．Basic photography skills.	D．History of the canyon area.

3. Where will the participants meet for the July 10 photography workshop?

A．Artist Point.	B．Washburn Trailhead.
C．Canyon Village Store.	D．Visitor Education Center.

4 . According to the Solar Energy Industry Association, the number of solar panels installed(安装)has grown rapidly in the past decade, and it has to grow even faster to meet climate goals. But all of that growth will take up a lot of space, and though more and more people accept the concept of solar energy, few like large solar panels to be installed near them.

Solar developers want to put up panels as quickly and cheaply as possible, so they haven’t given much thought to what they put under them. Often, they’ll end up filling the area with small stones and using chemicals to control weeds. The result is that many communities, especially in farming regions, see solar farms as destroyers of the soil.

“Solar projects need to be good neighbors,” says Jordan Macknick, the head of the Innovative Site Preparation and Impact Reductions on the Environment(InSPIRE)project. “They need to be protectors of the land and contribute to the agricultural economy.” InSPIRE is investigating practical approaches to “low-impact” solar development, which focuses on establishing and operating solar farms in a way that is kinder to the land. One of the easiest low-impact solar strategies is providing habitat for pollinators(传粉昆虫).

Habitat loss, pesticide use, and climate change have caused dramatic declines in pollinator populations over the past couple of decades, which has damaged the U.S. agricultural economy. Over 28 states have passed laws related to pollinator habitat protection and pesticide use. Conservation organizations put out pollinator-friendliness guidelines for home gardens, businesses, schools, cities—and now there are guidelines for solar farms.

Over the past few years, many solar farm developers have transformed the space under their solar panels into a shelter for various kinds of pollinators, resulting in soil improvement and carbon reduction. “These pollinator-friendly solar farms can have a valuable impact on everything that’s going on in the landscape,” says Macknick.

1. What do solar developers often ignore?

A．The decline in the demand for solar energy.

B．The negative impact of installing solar panels.

C．The rising labor cost of building solar farms.

D．The most recent advances in solar technology.

2. What does InSPIRE aim to do?

A．Improve the productivity of local farms.

B．Invent new methods for controlling weeds.

C．Make solar projects environmentally friendly.

D．Promote the use of solar energy in rural areas.

3. What is the purpose of the laws mentioned in paragraph 4?

A．To conserve pollinators.	B．To restrict solar development.
C．To diversify the economy.	D．To ensure the supply of energy.

4. Which of the following is the best title for the text?

A．Pollinators: To Leave or to Stay	B．Solar Energy: Hope for the Future
C．InSPIRE: A Leader in Agriculture	D．Solar Farms: A New Development

5 . If you want to tell the history of the whole world, a history that does not privilege one part of humanity, you cannot do it through texts alone, because only some of the world has ever had texts, while most of the world, for most of the time, has not. Writing is one of humanity’s later achievements, and until fairly recently even many literate (有文字的) societies recorded their concerns not only in writing but in things.

Ideally a history would bring together texts and objects, and some chapters of this book are able to do just that, but in many cases we simply can’t. The clearest example of this between literate and non-literate history is perhaps the first conflict, at Botany Bay, between Captain Cook’s voyage and the Australian Aboriginals. From the English side, we have scientific reports and the captain’s record of that terrible day. From the Australian side, we have only a wooden shield (盾) dropped by a man in flight after his first experience of gunshot. If we want to reconstruct what was actually going on that day, the shield must be questioned and interpreted as deeply and strictly as the written reports.

In addition to the problem of miscomprehension from both sides, there are victories accidentally or deliberately twisted, especially when only the victors know how to write. Those who are on the losing side often have only their things to tell their stories. The Caribbean Taino, the Australian Aboriginals, the African people of Benin and the Incas, all of whom appear in this book, can speak to us now of their past achievements most powerfully through the objects they made: a history told through things gives them back a voice. When we consider contact (联系) between literate and non-literate societies such as these, all our first-hand accounts are necessarily twisted, only one half of a dialogue. If we are to find the other half of that conversation, we have to read not just the texts, but the objects.

1. What is the first paragraph mainly about?

A．How past events should be presented.	B．What humanity is concerned about.
C．Whether facts speak louder than words.	D．Why written language is reliable.

2. What does the author indicate by mentioning Captain Cook in paragraph 2?

A．His report was scientific.	B．He represented the local people.
C．He ruled over Botany Bay.	D．His record was one-sided.

3. What does the underlined word “conversation” in paragraph 3 refer to?

A．Problem.

B．History.

C．Voice.

D．Society.

4. Which of the following books is the text most likely selected from?

A． How Maps Tell Stories of the World	B． A Short History of Australia
C． A History of the World in 100 Objects	D． How Art Works Tell Stories

6 . My life as a tax-paying employed person began in middle school, when, for three whole days, I worked in a baking factory.

My best friend Betsy’s father was a manager at Hough Bakeries, which, at Easter time, _________ little bunny (兔子) cakes for all its _________throughout Cleveland. It happened that the plant downtown needed eight kids for _________ help during our spring break, for which I had no_________ beyond listening to my favorite records. I’d _________ minimum wage. I’d see how a factory_________. My parents thought all of this was a grand idea and called Betsy’s dad with their _________.

Our_________in the factory were simple: Place cakes on a moving belt. Attach icing (糖霜) ears. Apply icing eyes and nose._________ bunny from the belt. This was ____________ than it sounds.____________ a bit and the cakes pile up. As I told my parents at dinner that first night, it was all a little more high-pressure than I’d   ____________ .

Dad __________. The son of a grocer, he’d spent the summers of his childhood____________ food in Benardsville, New Jersey. This was the sort of work that made you____________ the dollars you earned and respect those who did the work, he told me.

1.

A．sold

B．ordered

C．made

D．reserved

2.

A．stores

B．families

C．schools

D．citizens

3.

A．generous

B．financial

C．technical

D．temporary

4.

A．plans

B．problems

C．excuses

D．hobbies

5.

A．offer

B．earn

C．set

D．suggest

6.

A．worked

B．closed

C．developed

D．survived

7.

A．ambition

B．permission

C．experience

D．invitation

8.

A．joys

B．ideas

C．roles

D．choices

9.

A．Save

B．Keep

C．Stop

D．Remove

10.

A．harder

B．better

C．longer

D．cheaper

11.

A．Calm down

B．Slow down

C．Stay on

D．Move on

12.

A．indicated

B．witnessed

C．expected

D．remembered

13.

A．cried

B．smiled

C．hesitated

D．refused

14.

A．tasting

B．finding

C．sharing

D．delivering

15.

A．withdraw

B．donate

C．receive

D．appreciate

7 . Who is a genius? This question has greatly interested humankind for centuries.

Let’s state clearly: Einstein was a genius. His face is almost the international symbol for genius. But we want to go beyond one man and explore the nature of genius itself. Why is it that some people are so much more intelligent or creative than the rest of us? And who are they?

In the sciences and arts, those praised as geniuses were most often white men, of European origin. Perhaps this is not a surprise. It’s said that history is written by the victors, and those victors set the standards for admission to the genius club. When contributions were made by geniuses outside the club—women, or people of a different color or belief—they were unacknowledged and rejected by others.

A study recently published by Science found that as young as age six, girls are less likely than boys to say that members of their gender(性别)are “really, really smart.” Even worse, the study found that girls act on that belief: Around age six they start to avoid activities said to be for children who are “really, really smart.” Can our planet afford to have any great thinkers become discouraged and give up? It doesn’t take a genius to know the answer: absolutely not.

Here’s the good news. In a wired world with constant global communication, we’re all positioned to see flashes of genius wherever they appear. And the more we look, the more we will see that social factors(因素)like gender, race, and class do not determine the appearance of genius. As a writer says, future geniuses come from those with “intelligence, creativity, perseverance(毅力), and simple good fortune, who are able to change the world.”

1. What does the author think of victors’ standards for joining the genius club?

A．They’re unfair.	B．They’re conservative.
C．They’re objective.	D．They’re strict.

2. What can we infer about girls from the study in Science?

A．They think themselves smart.

B．They look up to great thinkers.

C．They see gender differences earlier than boys.

D．They are likely to be influenced by social beliefs

3. Why are more geniuses known to the public?

A．Improved global communication.

B．Less discrimination against women.

C．Acceptance of victors’ concepts.

D．Changes in people’s social positions.

4. What is the best title for the text?

A．Geniuses Think Alike	B．Genius Takes Many Forms
C．Genius and Intelligence	D．Genius and Luck

8 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The government has awarded $5 million to three different local nonprofit organizations. The money will     1    (distribute) over a four-year period and is aimed at helping approximately 1, 000 homeless people in the county of Arvada.

One agency,     2    (base) in Woodbridge, is expected     3    (receive) $1. 5 million. The agency director says that they will focus their resources on     4    (educate) the homeless. “We will probably build another school-home with this money,” he said. “A school-home is exactly     5     it sounds like. It is a school and a home. We have already built four school-homes throughout the county. We get the homeless off the street,     6     we educate them so they don’t have to return to the street. We teach them how to be gardeners, painters, carpenters, bricklayers, electricians, and air-conditioning repairmen.”

“You wouldn’t believe     7     success that we have had. In fact, a couple of weeks ago, our office air-conditioning went out. My secretary called a repairman. To our surprise, the repairman     8    (be) one of our first homeless students. He now owns his own air-conditioning business, plus two houses, two cars and a boat! He has a dozen employees. He’s doing better than I am. He fixed our air-conditioning     9     free. I think I might sign up for the air-conditioning class     10    (I). ”

9 . There has been a very serious decline in the numbers of shallow-water fish as a result of overfishing. People still want to eat fish, so the fishing industry must look at other sources, especially the deep waters of the Atlantic.     1    

Conservation measures will have to be put in place if these deep-sea fish are to survive. Research on five such species shows that numbers have declined by between 87 percent and 98 percent.     2     Many species could well disappear completely if the present trend continues. These are species that have been swimming in our oceans for hundreds of millions of years.

The problem is emphasized by the fact that the decline in numbers happened in less than twenty years. Deep-sea fish take a long time to reproduce and normally live for many years.     3     The average size of such fish also declined, with one species showing a 57 percent decline in average size. This is of particular concern, as large fish tend to produce more offspring than small ones.

    4     The deep-sea species have been caught as if they were the fast-breeding (快速繁殖) fish like sardine and herring. It is like killing elephants as if they reproduced at the same rate as rabbits.

The damage done by overfishing goes beyond the sea environment. Millions of people make a living in the fishing industry.     5     Measures must be taken to not only conserve ecosystems, but also sustain livelihoods and ensure food security.

A．Billions of people rely on fish for protein.

B．Many people now choose not to eat deep-sea fish.

C．Unfortunately, their reproduction rate is very low.

D．This puts them in the category of “critically endangered”.

E．None of these facts has been taken into account by the fishing industry.

F．Overfishing is a major cause of decline in populations of ocean wildlife.

G．This has resulted in a sharp decline in the numbers of many of the species caught.

10 . Many people believe that working to the maximum is the secret to success, but research has found that moderation(适度) also gets results on the job.

In a study led by Ellen Langer of Harvard University, researchers asked people to translate sentences into a new made-up language. Subjects who practiced the language moderately beforehand made fewer errors than those who practiced extensively or not at all. High levels of knowledge can make people too attached to traditional ways of viewing problems across fields the arts, sciences, and politics. High conscientiousness is related to lower job performance, especially in simple jobs where it doesn’t pay to be a perfectionist.

How long we stay on the clock and how we spend that time are under careful examination in many workplaces. The young banker who eats lunch at his desk is probably seen as a go-getter, while his colleagues who chat over a relaxed conference-room meal get dirty looks from the corner office. “People from cultures that value relationships more than ours does are shocked by the thought of eating alone in front of a computer”, says Art Markman, a professor of psychology at the University of Texas, Austin. Social interaction has been shown to lift mood(情绪) and get people thinking in new directions and in ways that could help improve any post-lunch effort.

Markman also promotes off-task time. “Part of being a good thinker is experiencing things that are seemingly unrelated to what you are working on at the moment but give you fresh ideas about your work,” he says. “Also, there is a lot of research showing that a positive mood leads to higher levels of productivity and creativity. So, when people do things to increase their life satisfaction, they also make themselves more effective at work.”

1. What does Ellen Langer’s study show?

A．It is worthwhile to be a perfectionist	B．Translation makes people knowledgeable.
C．Simpler jobs require greater caution.	D．Moderate effort produces the best result.

2. The underlined word “go-getter” in paragraph 3 refers to someone Who_______.

A．is good at handling pressure	B．works hard to become successful
C．a has a natural talent for his job.	D．gets on well with his co-workers

3. What can be inferred from the last paragraph?

A．A good thinker is able to inspire other people.

B．Experience unrelated to your job is useless.

C．A cheerful mood helps make a creative mind.

D．Focusing on what you do raises productivity.

4. What does the text seem to advocate?

A．Middle-of-the-road work habits.	B．Balance between work and family.
C．Long-standing cultural traditions.	D．Harmony in the work environment.