题目内容
About 40% of the travellers to Shanghai ________ from foreign countries.
- A.comes
- B.is
- C.are
- D.are coming
Thousands of people living in the Chinese capital will celebrate the start of the Chinese New year by heading for the ski resorts (滑雪场). Never mind that Beijing’s dry weather seldom produces snow. It is cold enough in winter for snow-making machines to make a covering for the hills north to the capital. And the rapid growth of a pleasure-seeking middle class has formed the basis for this new craze(热潮).
Since Beijing’s first ski resort was opened ten years ago, the sport has enjoyed astonishing increase. There are now more than a dozen resorts. Clothes markets in the city have added bright colored ski suits to their winter collections. Mr. Wei, a manager of a newly-opened ski resort in Beijing, sees the growth of an industry that could soon lead Chinese to head for the ski resorts of Europe. In recent years, ski resorts offering natural snow have opened in China. But many are in faraway areas of the country and can’t really match the equipment and services of some ski resorts in Europe.
Beijing’s skiing craze is partly a result of the recent increase in private (私有的) cars. This has led to the growth of a leisure industry in the capital’s suburbs (郊区), which until the late-1990s were unreachable to ordinary people. According to Mr. Wei, about 40% of the visitors to his resort come in their own cars. The rest are bused in by schools, businesses or government offices.
The problem is making money. Starting ski resorts requires quite a lot of money; hiring land from the local government, preparing the hills, buying snow machines, making sure there are enough water and electricity to run them, and buying ski equipment for hiring out to customers.
The ski resort where Mr. Wei works cost nearly $4 million to set up. And as so often in China when someone comes up with a good idea, many others rush in and price wars break out. Beijing now offers some of the cheapest ski training classes in the world, though with most people rather new to the sport, expecting a few more doing the same job.
【小题1】What does this text mainly talk about?
A.Convenience for skiers brought about by private cars. |
B.Skiing as a new way of enjoying one's spare time. |
C.Things to be considered when starting a ski resort. |
D.A sudden increase of ski training classes in Beijing. |
A.To visit more ski areas. |
B.To ski on natural snow. |
C.For a large collection of ski suits. |
D.For better services and equipment. |
A.transport to ski resorts |
B.production of family cars |
C.business of providing spare time enjoyments |
D.part-time work for people living in the suburbs |
A.Difficulty in hiring land. |
B.Lack of business experience. |
C.Price wars with other ski resorts |
D.Shortage of water and electricity. |
How do you feel after you've stayed up late to finish schoolwork? Or the day after a slumber party? Scientists now say that your answers to these questions may depend on your genes.
Genes are stretches of DNA that work like an instruction manual for our cells. Genes tell our bodies and brains what to do. People have about 40,000 genes, and each gene can have different forms. So, for example, certain forms of some genes make your eyes blue. Other versions of those genes make your eyes brown.
In a similar way, new research suggests that a gene called period3 affects how well you function without sleep. The discovery adds to older evidence that period3 helps determine whether you like to stay up late or get up early.
The period3 gene comes in two forms: short and long. Everyone has two copies of the gene. So, you may have two longs, two shorts, or one of each. Your particular combination depends on what your parents passed on to you.
Scientists from the University of Surrey in England studied 24 people who had either two short or two long copies of period3. Study participants had to stay awake for 40 hours straight. Then, they took tests that measured how quickly they pushed a button when numbers flashed on a screen and how well they could remember lists of numbers.
Results showed that the people with the short form of period3 performed much better on these tests than the people with the long form did. In both groups, people performed worst in the early morning. That's the time when truck drivers and other night-shift workers say they have the most trouble concentrating.
After the first round of experiments, participants were finally allowed to sleep. People in the group that performed well on the tests took about 18 minutes to nod off.
People with the long period3 gene, by contrast, fell asleep in just 8 minutes. They also spent more time in deep sleep. That suggests that people with the long form of the gene need more and deeper sleep to keep their brains working at top form.
1.We can know from the passage that genes can not ________.
A.tell our bodies and brains what to do |
B.make our eyes blue or brown |
C.decide how well you work without sleep |
D.ensure whether you’re good at driving |
2.Which of the following statements about the period3 is wrong?
A.It affects whether you like to stay up late or get up early. |
B.It comes in two forms: short and long. |
C.One has either two longs or two shorts of it. |
D.Your parents determine what particular combination you have. |
3. People with the short form of period3__________.
A.need to go to bed early and get up early |
B.can work better than the people with long form of period3 without sleep |
C.take less time to fall asleep after they stay up late |
|
D.need more and deeper sleep to keep their brains working at top form |
4.What’s the best title of the passage?
A.The Period3 Gene |
B.The Function of Genes |
C.Wake up, Sleepy Gene |
D.Stay up Late or Get up Early? |