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As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.
Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.
The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities, others lose heart at the first sign of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "flight or fight" and in more primitive days the choices made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Since we can't remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.
46. People are finding less and less time for relaxing themselves because _____.
A. they regard working as their greatest enjoyment
B. they believe that work is superior to relaxation
C. they are traveling fast all the time
D. they are becoming busier with their work than ever before
47. According to the author, the most important character for a good manager is his _____.
A. strong will to hold out stress
B. knowing the art of relaxation
C. high sense of responsibility
D. having control over performance
48. Which of the following statements is TRUE, according to the passage?
A. We can find quite a few ways to avoid stress.
B. Stress is always harmful to people's health
C. It's easy to change the habit of keeping oneself busy with work.
D. Different people can bear different amount of stress.
49. In the last sentence of the passage, "do so" refers to _____.
A. "expose ourselves to stress"
B. "find ways to deal with stress"
C. "remove stress from our lives"
D. "establish links between diseases and stress"
50. According to the author, the right attitude toward stress is _____.
A. to avoid it                        
B. to try to cope with it
C. to regard it as a vital motivation       
D. to find some relaxation  

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Nowadays it is common that people are buying more products and services than ever before through the Internet, so do Americans. And experts say the popularity of online sales is likely to spread to other countries. Online sales now represent as much as 10% of all retail sales in the United States. This has led traditional stores to seek new ways to keep their customers loyal.
Taking Lynne for example, she made good use of the Internet. she used the Internet to buy everything she needed for her Wedding and holiday gifts for her husband and stepdaughter. Other than food, 90% of her purchases were made on her home computer. “I find that, by being able to go online, choose the things that I need, and have them delivered to me right at my doorstep, I eliminate all the driving, all the crowds, all the noise of that, and I usually get a better selection.”
There are a lot of people like her. Experts say American online shopping hit records in both November and December. 57% of Americans have bought something electronically. Store owners worry that this growing amount of online sales will hurt their business. Cornell University marketing professor Ed Melaughlin says they can keep their customers by selling goods like clothing, which buyers may want to see and try on before purchasing. The stores could also offer things that are difficult to ship. Besides, some stores can please customers by offering to repair electronic products.
Bill Martin is the founder of Shopper Trak. His business helps stores learn about their customers. He said, “There is still a lot of emotion in the buying decision, you know, that takes place. Often you need that last sense of “Boy, this is exactly what I want before you are ready to part with money, and you can't always get that online. It's a rather cold process.”
While e-commerce worries some business owners, the only worry for delivery services is keeping up with the number of packages. UPS manager Dana Kline says her company is very busy at this time of the year.
UPS is so busy that it has filled 55,000 temporary work positions during the holiday season.
The purpose of this passage is to tell us ________.

A.the challenge online owners are faced with
B.the difference between online sales and traditional sales
C.the challenge e-commerce causes to traditional sales
D.the trouble that customers often meet when purchasing online

The example of Lynne is mentioned in the passage to show________.

A.online sales will replace traditional sales sooner or later
B.online business has changed many Americans' life
C.traditional stores can't offer enough food to their customers
D.traditional stores find new ways to keep their customers loyal

The underlined word “eliminate” in Paragraph 2 can be replaced by “________”.

A.include B.decrease C.avoid D.discourage

It is implied in Bill Martin's words that ________.

A.store owners should learn more about their customers
B.traditional stores can provide goods to buyers more quickly
C.some owners are using websites to persuade people to visit their stores
D.traditional stores offer a social experience that some people enjoy

Apparently everyone knows that global warming only makes climate more extreme. A hot, dry summer has caused another flood of such claims. And one of the players that benefit the most from this story is the media: the idea of “extreme” climate simply makes for more exciting news.
Consider Paul Krugman writing breathlessly in The New York Times about the “rising incidence of extreme events.” He claims that global warming caused the current drought in America’s Midwest, and that supposedly record-high corn prices could cause a global food crisis(危机)。
But the United Nations’s latest assessment tells us precisely the opposite—there has an overall slight tendency toward less dryness in North America. Moreover, there is no way that Krugman could have identified this drought as being caused by global warming without a time machine since climate models estimate that such detection will be possible by 2048, at the earliest.
And, fortunately, this year’s drought appears unlikely to cause a food crisis, as global rice and wheat supplies are plentiful. Moreover, Krugman overlooks inflation(通货膨胀):Prices have increased six-fold since 1969.So, the inflation-adjusted price of corn was higher throughout most of the 1970s.
Finally, Krugman forgets that concerns about global warming are the main reason that corn prices have skyrocketed since 2005.Nowadays 40 percent of corn grown in the United States is used to produce ethanol(乙醇),which raises the price of corn –at the expense of many of the world’s poorest people.
Bill Mickbben similarly worries in The Guardian About the Midwest drought and corn prices.He confidently tells us that fierce wildfires from New Mexico and Colorado to Siberia are “exactly” what the early stages of global warming look like.
In fact, the latest study on global wildfire suggests that fire incidence has declined over the past 70 years and is now close to its preindustrial level.
When well—meaning campaigners want us to pay attention to global warming, they often end up making overstatements. And exaggerated(夸张的) claims merely fuel public distrust and unconcern. That is unfortunate, because global warming is a real problem, and we do need to address it.
In what way do the media benefit from extreme weather?

A.They can give voice to different views.
B.They can make themselves better known.
C.They can choose from a greater variety of topics.
D.They can attract people’s attention to their reports.

What is the author’s comment on Krugman’s claim about the current drought in America’s Midwest?

A.It will eventually get proof in 2048.
B.It is based on an erroneous climate model.
C.So far there is no way to prove its validity.
D.A time machine is needed to tell if it is true.

What is the chief reason for the rise in corn prices according to the author?

A.Inflation rates have been skyrocketing since the 1970s.
B.A considerable part of corn is used to produce green fuel.
C.Climate change has caused corn supply to drop markedly.
D.Demand for food has been rising in the developing countries.

What does the author think of the exaggerated claims in the media about global warming?

A.They lead to public distrust about science.
B.They create confusion about climate change,
C.They are strategies to raise public awareness.
D.They do a disservice to addressing the problem.

Do You Want To Change the Future of Education?
Our goal is to give a world-class education to everyone, everywhere, regardless of gender, income or social status.
Today, edx.org, a not-for-profit website, provides hundreds of thousands of people from around the globe with access to free education .We offer amazing quality classes by the best professors from the best schools. We enable our members to find out a new passion that will transform their lives and their communities.
Around the world from coast to coast, in over 192 countries, people are making the decision to take one or several of our courses. As we continue to grow our operations, we are looking for talented passionate people with great ideas to join the edX team. We aim to create an environment that is supportive ,diverse, and as fun as our brand.If you’re hardworking and ready to contribute to an unparalleled member experience for our community, we really want you to apply.
As part of the edX team, you’ll receive:
·Competitive compensation
·Generous benefits package
·Free lunch every day
·A great workplace where everyone cares and wants to change the world
While we appreciate every applicant’s interest, only those under consideration will be contacted .We regret that phone calls will not be accepted. We promise that every applicant will be treated fairly.
All positions are located in our Cambridge offices.
What’s the aim of the text?

A.To give an introduction to edX.
B.To encourage people to join edX.
C.To predict the future of education.
D.To advise us to choose quality education.

What does edX mainly do?

A.Providing free courses.
B.Studying people’s learning habits.
C.Discovering people’s new passion.
D.Researching the trend of education .

According to the text, edX____?

A.aims to change the world
B.tries to build more schools
C.has schools in nearly 200 countries
D.teaches people how to choose their courses

Nothing evokes(唤起)Alaska like a whale exploding out of the water or an eagle pulling a silver fish from the river .Combine these images with high mountains,brilliant icebergs and wonderful meals and you really do have the Best of Alaska! Join us for an unforgettable 7-day excursion(远足)to the last frontier!
Highlights:
JUNEAU:Juneau, the state capital,is rich in culture and scenic beauty.It is here that we start and end our trip.
HAINES:Haines is a small community located along the fjords(海湾).The natural beauty and expansive wilderness found here have made Haines a premier center for adventure in Alaska. ALASKA INDIAN ARTS:Alaska Indian Arts is a nonprofit corporation dedicated to the preservation and continuation of traditional native craft and culture of the Northwest Native Tribes.We spend a few hours learning carving, native beading(玻璃珠)and culture from these master artists.
SKAGWAY:Skagway is a lively town,which still reflects its gold rush roots and contains colorful shops.In Skagway, we stop by the Klondike Gold Rush National Park Visitor's Center and ride the White Pass Yukon Route Railway.
GUSTAVUS:Gustavus is the gateway to Glacier Bay National Park.We’II stay at a comfortable lodge here for two nights.This will be the base for both the whale-watching excursion and a full day cruise in Glacier Bay.
DATES/PRICES:
May 15,June 17,July 16,August 14.
7 days—$3500,including lodging,all meals,excursions,guides,park fees,sales taxes,and transportation between Juneau,Skagway, Haines,and Gustavus.Not included:Alcohol,personal items,airfare to and from Juneau.
Contact:
E-mail:info@alaskamountainguides.com
Call:800—766—3396
Write:Alaska Mountain Guides &Climbing School
P.O.Box 1081,Haines AK 99827
According to the advertisement, the participants of the excursion_________.

A.will spend one day experiencing the local culture at Alaska Indian Arts
B.can contact Alaska Mountain Guides & Climbing School by email or fax
C.are able to experience some adventurous activities in Haines
D.can get lots of traditional native artworks free of charge

You can feel the history of the local place at______.

A.Juneau B.Skagway C.Haines D.Gustavus

You can watch a whale exploding out of the water at______.

A.Glacier Bay National Park
B.the Klondike Gold Rush National Park
C.the White Pass Yukon
D.the Northwest Native Tribes

Which of the following is a participant required to pay additional fees?

A.Going from Gustavus to Juneau by train.
B.A full day cruise in Glacier Bay.
C.Having the last supper at Juneau.
D.Flying from Juneau to his hometown.

Humans aren’t the only ones getting a buzz from coffee.Caffeine can improve memory among honeybees and lead to better pollination(授粉).According to a recent study published in the journal Science.
The study was conducted by a team of researchers at Newcastle University in the United Kingdom.They found that the nectar(花蜜)of some flowers,such as those from grapefruit and lemon plants,as well as certain coffee flowers,contains low doses of caffeine.To get bees to feed on these flowers,the team trained the insects to associate food with the smell of the flowers.They also trained another group of bees to feed on nectar from flowers that were sweetened with a sugar, but did not contain caffeine.After 24 hours,the bees trained on caffeinated flowers returned to these plants three times as often as those trained on the sweetened flowers returned to the uncaffeinated plants.
Professor Geraldine Wright led the researchers.“Remembering floral traits(花部特征)is difficult for bees to perform at a fast pace as they fly from flower to flower and we found that caffeine helps the bee remember where the flowers are,”Wright said in a statement.
Improved memory led to the better pollination.That’s because once bees sip the caffeine nectar, they continue to look for more coffee plants to pollinate.This also suggests that caffeine plays a role in improving the bees’ability to search for food.
Researchers found that caffeine’s effect on the bee brain is similar to its effect on mammals.“The change is similar to that produced by caffeine in neurons(神经元)associated with learning and memory in the rat brain,”Wright said.
Bee populations have declining since 2007.The dramatic drop in the insects’numbers has serious effects for ecosystems and the farming industry.Bees are needed in the reproduction of crops and spreading wild flower species.Understanding what keeps bees buzzing could help to make sure that the insects are able to remember and pollinate their favorite flowers.
Which of the following is mentioned in the passage?

A.Caffeine has no effect on the rat brain.
B. Bee population has been increasing.
C.The nectar of lemon plants contains caffeine.
D.Bees dislike nectar from sweetened flowers.

After reading the passage,John,who works in the farming industry, will probably feel________.

A.annoyed B.angry C.nervous D.excited

Which of the following relationship is correct according to the passage?

A.improved memory—caffeine nectar—better pollination
B.caffeine nectar—improved memory—better pollination
C.improved memory—better pollination—caffeine nectar
D.caffeine nectar—better pollination—improved memory

What section of a newspaper may this passage be taken from?

A.Science B.Education
C.Culture D.Sports

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