A team from Krakow, in Poland, used functional magnetic resonance imaging （機(jī)能性核共振成像）（FMRI）to assess brain activity when 40 volunteers were shown various images．Men showed activity in areas which dealt with what action they should take in order to avoid or face up to danger．But the study found more activity in the emotional centers of women's brains．The researchers, from another university, carried out scans on 21 men and 19 women．Brain activity was monitored while the volunteers were shown images of objects and images from ordinary life designed to remind different emotional states．
The images were displayed in two runs．For the first run, only negative pictures were shown．For the second run, only positive pictures were shown．
While viewing the negative images, women showed stronger and broader activity in the left thalamus（神經(jīng)床）．This is an area which passes sense information to the pain and pleasure centres of the brain．Men showed more activity in an area of the brain called the left insula（腦島）, which plays a key role in controlling natural functions, including breath, heart rate and digestion．Generally, activity in this area tells the body to either run away from danger, or meet it head on - the so-called "fight or flight response"．
While viewing positive images, women showed stronger activity in an area of the brain associated with memory．With men, the stronger activity was recorded in an area associated with visual processing．Dr Urbanik believes these differences suggest women may analyze positive stimuli（刺激）in a broader social context and associate positive images with a particular memory．
For instance, viewing a picture of a smiling child might remind memories of a woman's own child at this age．On the contrary, male responses tend to be less emotional．
1．The research shows that men response differently to__________compared with women．
A．different images    B．ordinary life 
C．different activities        D．medical scan
2．According to the passage, when faced with danger, ____________．
A．women react more slowly than men       B．women usually try to avoid it 
C．men usually have no reaction         D．men react to it more directly
3．What is discussed in the 4 th paragraph?         ．
A．Men and women’s different memories   B．The different responses to the children
C．Different reactions to positive stimuli    D．Negative results of the visual processing
3．The passage mainly develops______．
A．by inferring                   B．by comparing  
C．by listing examples       D．by giving explanations

As the railroads and the highways shaped the American West in the past centuries, a new electrical generating(發(fā)電)and transmission (輸送) system for the 21^st century will leave a lasting mark on the West, for better or worse. Much of the real significance of railroads and highways is not in their direct physical effect on the scenery, but in the ways that they affect the surrounding community. The same is true of big solar plants and the power lines that will be laid down to move electricity around.

The 19 ^th century saw land grants(政府撥地) offered to railroad companies to build the transcontinental railroads, leaving public land in between privately owned land. In much of the West, some of the railroad sections were developed while others remained undeveloped, and in both cases the landownership has presented unique challenges to land management. With the completion of the interstate highway system, many of the small towns, which sprang up as railway stops and developed well, have lost their lifeblood and died.

Big solar plants and their power lines will also have effects far beyond their direct footprint in the West. This is not an argument against building them. We need alternative energy badly, and to really take advantage of it we need to be able to move electricity around far more readily than we can now.

So trade-offs will have to be made. Some scenic spots will be sacrificed. Some species(物種) will be forced to move, or will be carefully moved to special accommodations. Deals will be struck to reduce the immediate effects.

The lasting effects of these trade-offs are another matter. The 21^st century development of the American West as an ideal place for alternative energy is going to throw off a lot of power and money in the region. There are chances for that power and money to do a lot of good. But it is just as likely that they will be spent wastefully and will leave new problems behind, just like the railroads and the highways.

The money set aside in negotiated trade-offs and the institutions that control it will shape the West far beyond the immediate footprint of power plants and transmission lines. So let’s remember the effects of the railroads and the highways as we construct these new power plants in the West.

1.What was the problem caused by the construction of the railways?

A．Small towns along the railways became abandoned.

B．Land in the West was hard to manage.

C．Some railroad stops remained underused.

D．Land grants went into private hands.

2.What is the major concern in the development of alternative energy according to the last two paragraphs?

A．The use of money and power.

B．The transmission of power.

C．The conservation of solar energy.

D．The selection of an ideal place.

3.What is the author’s attitude towards building solar plants?

A．Disapproving.      B．Approving.         C．Doubtful.          D．Cautious.

4.Which is the best title for the passage?

A．How the Railways Have Affected the West

B．How the Effects of Power Plants Can Be Reduced

C．How Solar Energy Could Reshape the West

D．How the Problems of the Highways Have Been Settled

Nothing says love like a dozen long – stemmed roses on Valentine’s Day. More than a million roses will be sold during this festival for lovers, the biggest day of the year for the nation’s rose industry. It’s going to remain the most popular flower because love never goes out of style.

Yes, a rose is a rose is a rose. But selling them is no longer a beautiful experience for traditional flower shops. Supermarkets now offer convenience to the busy and discount rose shops help those hopelessly in love save money. Roses only is a good example of a discount rose retailer that was transformed from a traditional shop to answer the challenge in the’ 90s.

Inside this store on Sixth Avenue near 40 th Street, contemporary white furniture and wall – to – wall mirrors give it an expensive look. Customers move about freely among the counters, looking eagerly at the roses in more than 50 colors from shelf to shelf. Some customers say it’s the high quality of the roses that attracts them there. “I spent $ 20 but the flowers looked like I paid 60 or 70 dollars,” says one customer.

Studies show more people are buying roses in ones, two and threes these days. In fact, more than half of all roses are sold in bunches of fewer than a dozen. But Roses Only's low prices encourage people to spend. Even on Valentine's Day, when the price of a dozen roses and delivery can soar as high as $150, 12 of Roses Only's most expensive flowers sell for just $35. The company's key to success is to hold prices down by controlling every link in the rose chain. It grows its own roses in the sunshine of the Andes Mountains. In addition, the company also sells other items such as ballons and stuffed animals.    

       While discount rose retailers are witnessing their business bloom, U.S. rose growers aren’t able to compete with the fierce foreign competition. More than 57% of roses sold in the USA are grown in other countries. The biggest foreign producers are Colombia and Ecuador, which accounted for almost 90% of the total imported last year. The trend has hurt domestic rose growers such as Johnson Flowers of California, considered to be this country's leading producer.

Now, instead of fighting overseas rivals, the Johnsons are trying to work with them. "We have a few big fighting overseas rivals, the Johnsons are trying to work with them. “We may also widen our business to include the service area and be a representative for overseas flower producers.”

       As a result of severe competition, those in the rose business long for the good old days, whereas ordinary people benefit from the low price.

60．What is the central theme of this text?

A．The US rose business is going from bad to worse in spite of the efforts made.

B．The rose will remain the most popular flower as love never goes out of date.

C．The rose business is trying to meet the challenges in the market to succeed.

D．The rose industry plays an important role in American economy.

61．How does Roses Only obtain success in the discount rose retailing field?

       A．By setting up more chain stores across the country.

B．By selling roses in supermarkets.

C．By selling high quality roses at a low price.

D．By selling roses by the dozen.