题目内容


B
According to the report by Baekeland and Hartmann, two American authoritative psychotogical research centres, the "short sleepers" had been more or less average in their sleep needs until the men were in their teens.But at about age 15 or so, the men voluntarily began cutting down their nightly sleep time because of pressures from school, work and other activities. These men tended to view their nightly periods of unconsciousness as bothersome interruptions, in their daily routines.
In general, these "short sleeps" appeared ambitious, active, energetic, cheerful,, conformist (循规蹈矩的) in their opinions, and very sure about their career choices.They often held several jobs at once, or workers full - or part - time while going to school.And many of them had a strong urge to appear "normal" or "acceptable" to their friends and associates.When asked to recall their dreams, the "short sleepers" did poorly.More than this, they seemed to prefer not remembering.In similar fashion, their usual way of dealing with psychological problems was to deny that the problem existed, and then to keep busy m the hope that the trouble would go away.The sleep patterns of the “short sleepers" were similar to, but less extreme than, sleep patterns shown by many mental patients categorized as manic (疯人).
The "long sleepers" were quite different indeed.Baekeland and Hartmann report that these young men had been lengthy sleeps since childhood.They seemed to enjoy their sleep, protected it, and were quite concerned when they were occasionally deprived (剥夺) of their desired 9 hours of nightly bed rest.They tended to recall their dreams much better than the "short sleepers." did.Many of the "long sleepers" were shy, anxious, introverted (内向), inhibited (压抑) , passive, mildly depressed, and unsure of themselves (particularly in social situations).Several openly states that sleep was an escape from their daily problems.
50.According to the text, which is probably the writer' s real attitude towards these two living habits ____.
A.both of them are healthy habits  
B.not both of them are unhealthy habits
C.either of them is not unhealthy habits
D.neither of them is healthy habits
51.When sometimes they cannot enjoy adequate sleep, the long sleepers might ____.
A.feel extremely depressed        B.become energetic
C.appeared disturbed         D.feel disappointed
52.The writer implies (暗示) that short sleepers _____ in the text.
A.are ideally vigorous even under the pressures of life
B.often neglect the consequences of inadequate(不足的)sleep
C.do not know how to relax properly
D.are more unlikely to run into mental problems


50.D   5l.C  52.B 

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  In a world with limited land, water and other natural resources(资源), the harm from the traditional business model is on the rise.Actually, the past decades has seen more and more forests disappearing and globe becoming increasingly warm.People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable(可持续的)ways.That means growth with low carbon or development of sustainable products.In other words, we should keep the earth healthy while using its supply of natural resources.

  Today, sustainable development is a proper trend in many countries.Accordin(http://www.unjs.com)g to a recent study, the global market for low-carbon energy will become three times bigger over the next decades.China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy revolution.It is now tryuing hard to make full use of wind and solar energy, and is spending a huge amount of money making electric cars and high-speed trains.In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil(棕榈油), which is produced without cutting down valuable rainforest.In recent years the markets for sustainable products have grown by more than 50%.

  Governments can fully develop the potential of these new markets.First, they can set high targets for reducing carbon emissions(排放)and targets for saving and reusing energy.Besides, stronger arrangement of public resources like forests can also help to speed up the development.Finally, governments can avoid the huge expenses that are taking us in the wrong direction, and redirecting some of those expenses can accelerate the change from traditional model to a sustainable one.

  The major challenge of this century is to find ways to meet the needs of growing population within the limits if this single planet.That is no small task, but it offers abundant new chances for sustainable product industries.

(1)

The traditional business model is humful because of all the following EXCEPT that ________.

[  ]

A.

It makes the world warmer

B.

it consumes natural resources

C.

it brings severe damage to forests

D.

it makes growth hard to continue

(2)

What can we infer from Paragraph 2?

[  ]

A.

China lacks wind and solar energy.

B.

China is the leader of the low-carbon market.

C.

High-speed trains are a low-carbon development.

D.

Palm oil is made at the cost of valuable forests.

(3)

To full develop the low-carbon markets, government can ________.

[  ]

A.

cut public expenses

B.

forbid carbon emission

C.

develop public resources

D.

encourage energy conservation

(4)

We can learn from the last paragraph that businesses have many chances to ________.

[  ]

A.

develop sustainable products

B.

explore new natural resources

C.

make full use of natural resources

D.

deal with the major challenge

(5)

What is the main purpose og the passage?

[  ]

A.

To introduce a new business model.

B.

To compare two business models.

C.

To predict a change of the global market.

D.

To advocate sustainable development.

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