Up and down the economic ladder, many Americans who work—and especially those raising kids—are pressed for time, wishing they had more of it to devote to leisure activities (or even just sleeping). At the same time, research has indicated that people who are busy tend to be happier than those who are idle, whether their busyness is purposeful or not.
A research paper released late last year investigated this trade-off, attempting to pinpoint (精确指出) how much leisure time is best. Its authors examined the relationship between the amount of “discretionary time” people had—basically, how much time people spend awake and doing what they want—and how pleased they were with their lives.
The paper, which analyzed data covering about 35,000 Americans, found that employed people’s ratings of their satisfaction with life peaked when they had in the neighborhood of two and a half hours of free time a day. For people who didn’t work, the optimal (最佳) amount was four hours and 45 minutes.
The research traced a correlation (关联) between free time and life satisfaction, but didn’t provide any definitive (最后的) insight into what underlies that correlation—“which is exciting, because this is a work in progress,” says Cassie Mogilner Holmes, a professor at UCLA’s Anderson School of Management and a co-author of the paper, which hasn’t yet been peer-reviewed or published in an academic journal.
An experiment that the researchers arranged hinted at (暗示) a possible explanation of the correlation they found. They asked participants to picture and describe what it would be like to have a certain amount of daily free time, and then report how they’d feel about that allotment (分配). “What we find is that having too little time makes people feel stressed, and maybe that’s obvious,” says Holmes. “But interestingly, that effect goes away—the role of stress goes away—once you approach the optimal point.” After that point, Holmes says, the subjects started to say they felt less productive overall, which could explain why having a lot of free time can feel like having too much free time.
It’s not clear what an individual is to do with these findings, since the amount of free time people have usually has something to do with a variety of factors, such as having children or a degree of control over work schedules. Holmes shared her research with the MBA students in her class on happiness, and some of the most time-crunched among them were comforted by the findings: “I think that two and a half hours creates a nice goal that even if you increase a little bit more of your discretionary time use, you can expect that it will translate into greater life satisfaction.”
1.According to the passage, what happens to Americans occupied with their work?
A. They allow themselves more leisure time.
B. They keep themselves busy on purpose.
C. They know how much leisure time is best.
D. They experience higher level of satisfaction.
2.What can be learned about the correlation between free time and life satisfaction?
A. Researchers have cast light on the cause of the correlation.
B. Unemployed people need more leisure time to feel content.
C. The paper on the correlation has achieved peer recognition.
D. Employed people enjoy more leisure time in the neighborhood.
3.Which of the following charts illustrates the change of stress and productivity?
A. 
B. 
C. 
D. 
4.It can be inferred from the last paragraph that _______.
A. Holmes is optimistic about the influence of her findings
B. individuals are encouraged to control their work schedules
C. people with tight schedules can’t benefit from the findings
D. the MBA students find no free time to obtain life satisfaction
Imagine trying to test the memory of the blue whale—the biggest animal that exists or has ever existed, a 190-ton behemoth that dwarfs (使相形见绌) even the largest dinosaur, a leviathan that is rarely seen except when it comes up for air. How would you subject such a creature to a psychological test?
You can’t, exactly. But there is another way to get a sense of how their minds work. For years, scientists have been fitting radio tags to these giants to track their whereabouts (下落). By analyzing a decade’s worth of that data, Briana Abrahms from the National Oceanic and Atmospheric Administration has shown that these animals fine-tune the paths of their migrations to track the historical abundances of krill—the tiny crustaceans that they eat. Rather than finding where their prey (捕获物) currently is, they go after the places where their prey was in years past. Their migrations, in other words, are guided by memory. So what happens in a world where memory might lead them away from the right path?
Countless species of animals migrate over long distances to exploit far-flung sources of food, but these voyages aren’t just about getting to the final destination. The journey itself can be a sort of food tour, too. Migrating animals often adjust the pace and timing of their movements to hit pulses of seasonal food that spring up along their path. The ecologist Sandra van der Graaf described this as “surfing the green wave” after first observing it among barnacle geese. Others have found the same pattern among wasps, elk, mule deer, and brown bears.”
The blue whales of the North Pacific spend their winters in their breeding grounds off California and Costa Rica. Come spring, they swim up the coast of North America toward the food-rich summer waters of the Pacific Northwest. They could make the journey in two months (and they do, on the reverse trip back south). Instead, they take twice that time, pausing to gorge (狼吞虎咽) themselves on blooms of krill that appear along the way. It’s a leisurely season-long tour of a continent-wide buffet line.
Scientists can get a good sense of this changing buffet by measuring the concentrations of chlorophyll in different patches of ocean. This green pigment (色素) reflects the amount of plankton, which in turn is eaten by krill. The more chlorophyll there is, the more food a blue whale might find.
By comparing chlorophyll counts to whale movements, Abrahms and her team expected to see that “they follow the timing of their prey, as it becomes available,” she says. But they were surprised to learn that the animals very rarely tracked contemporary waves of krill. Instead, their movements were strongly correlated (相关联) with 10-year historical averages of chlorophyll. Put it this way: You could predict a blue whale’s movements with far more accuracy by looking at where their food has been than where their food currently is.
1.How are the scientists carrying out a psychological test on the blue whales?
A. They wait for the blue whales to approach the sea surface.
B. They induce the blue whales to accept the memory test.
C. They count on a tracking technique to accumulate data.
D. They compare the blue whales with the large dinosaurs.
2.What might migrating animals do if they are misguided by memory?
A. They might try their best to get to the final destination.
B. They might fall back on the seasonal food along the way.
C. They might accelerate the pace to cover longer distances.
D. They might surf the ocean wave to save time and energy.
3.What does the continent-wide buffet line in Paragraph 4 indicate?
A. The breeding grounds of the blue whales are lacking in food.
B. Chlorophyll can be defined as the beginning of the food chain.
C. Contemporary waves of krill can reflect whale movements.
D. The season change determines the hunting route of the whales.
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| Yellowstone National Park is the flagship of the National Park Service and a favorite to millions of visitors each year. The park is a major destination for all members of the family. By driving the grand loop road, visitors can view the park from the comfort of their vehicle and also take a rest at one of the many roadside picnic areas. How much is the entrance fee? $25 - Private, noncommercial vehicle; $20 - Motorcycle or snowmobile (winter) $12 - Visitors 16 and older entering by foot, bike, ski, etc. This fee provides the visitor with a 7-day entrance permit for both Yellowstone and Grand Teton National Parks. A $50 park annual pass provides entrance for a single private non-commercial vehicle at Yellowstone and Grand Teton National Parks. The $10 Interagency Senior Pass (62 and older) is a lifetime pass available to U.S. citizens or permanent residents. Where can you stay? Inside Yellowstone, you can choose to stay in modern or historic hotels and cabins inside the park like the Old Faithful Inn, the world’s largest log structure. For those who want to be a little closer to nature, there are 12 campgrounds with a range of services from primitive pit toilets to shower and laundry facilities. There’ s also RV camping with and without dumping stations. Staying outside the park gives you unique Old West experiences but still keeps you close to park attractions. If you’re taking a road trip to Yellowstone, you’ll want to check out our Hotels and Cabins On The Road section. |
1.The entrance fees listed on the web page don’t apply to _______.
A. temporary residents in the USA
B. visitors out of a certain age range
C. vehicles involving business activities
D. private motorcycles and snowmobiles
2.What are you likely to acquire in the Old Faithful Inn?
A. Unique old west experiences.
B. Primitive pit toilets and shower.
C. Knowledge of origin of the park.
D. RV camping with dumping sites.
It was sleeting (雨雪交加). My wife and I were going to dinner at a friend’s house. As we hurried toward the house, with its _______ light, I noticed a car pulling out from the curb. Just ahead, another car was waiting to_______ into the parking space. But before he could do so another car came up from behind, and sneaked into the_______.
“That’s a(n) _______ trick.” I thought. While my wife went ahead into our friend’s house, I stepped into the street to give the _______ driver a piece of my mind. A man in work clothes _______ the window.
“Hey,” I said, “this parking space belongs to that guy.” I _______ toward the man ahead, feeling pretty manly in my new coat.
“Must you get _______?” the driver yelled, “None of your business!”.
“No,” I said. “You don’t understand. That fellow was waiting for this space.” Things quickly became _______, until finally he leaped out of the car. The huge man ________ me and bent me back over the hood of his car. I was ________. I scrambled (跌跌撞撞) to my friend’s front door. Seeing that I was ________, my wife and friends asked me what had happened. All I could say was that I had had a(n) ________ about a parking space. They had the ________ to let it go at that.
Perhaps half an hour later, the doorbell rang. I was sure the guy had returned for me. My hostess got up to answer it, but I stopped her. I was morally ________ to answer it myself.
I walked down the halfway with________. Yet I knew I had to face up to my fear. I opened the door. There he stood, ________. “I came back to apologize,” he said in a low voice. “The Brooklyn Navy Yard is closing. I’ve worked there for years. And today I got ________. I hope you’ll accept my apology.”
I often remember that big man. I think of the ________ and courage it took for him to come back. He was man at his________.
1.A. inviting B. welcoming C. warning D. flashing
2.A. advance B. back C. slide D. break
3.A. garage B. courtyard C. destination D. spot
4.A. absurd B. logical C. dirty D. invisible
5.A. fierce B. guilty C. cruel D. dangerous
6.A. opened up B. wound up C. rolled down D. took down
7.A. gestured B. signed C. hurried D. moved
8.A. involved B. interrupted C. infected D. interacted
9.A. sharp B. stable C. tense D. acute
10.A. seized B. crushed C. scratched D. hugged
11.A. disappointed B. astonished C. depressed D. terrified
12.A. stricken B. fallen C. drunken D. shaken
13.A. negotiation B. bargain C. assessment D. argument
14.A. creativity B. sensitivity C. security D. sincerity
15.A. bound B. reluctant C. induced D. reminded
16.A. courage B. patience C. scare D. curiosity
17.A. trembling B. towering C. leaning D. wandering
18.A. laid off B. settled down C. entered for D. dealt with
19.A. honesty B. confidence C. effort D. energy
20.A. cost B. risk C. best D. leisure
The reform and opening-up policy, which has been very successful, remains _______, and will play a greater role in the future development.
A. a sacred cow B. a confidential source
C. a white elephant D. a wet blanket
—It’s said that your boss will give you a fat raise soon.
—She’s very _______ with promises but much less with money.
A. acquainted B. tough
C. thrilled D. liberal
