In summer, millions of people will head for the beach．And while the ocean can be a great place to swim and play, it may also be useful in another way．Some scientists think that waves could help make electricity．
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland．“There is certainly a lot of energy in waves．”
Scientists are working on using that energy to make electricity．
Most waves are created when winds blow across the ocean．“The winds start out by making little ripples (波纹) in the water, but if they keep on blowing , those ripples get bigger and bigger and turn into waves, ”Taylor said．“Waves are one of nature’s ways of picking up energy and then sending it off on a journey．”
When waves come towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) ．The turbine can then power an electrical generator (发电机) ．
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland．
The resource is huge．We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal．
Oceans cover three quarters of the earth’s surface．That would make wave power seem perfect for creating energy around the world．There are some drawbacks, however．
Jamie Taylor said that wave power still cost too much money．He said that its effects on animals in the sea were still unknown．Plus, wave power would get in the way of fishing and boat traffic．
With more research, however, “many of these problems might be overcome,” Taylor said．“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world．Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day．”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!Which of the following is NOT true?
| A．Wave power costs too much money． |
| B．Wave energy creates the same amount of pollution as other energy sources． |
| C．Wave power affects fishing and boat traffic． |
| D．Wave power may affect marine animals． |
We can infer from the passage that ______．
| A．finding new energy sources like wave energy is important |
| B．wave energy is a resource that will never run out and is used all over the world |
| C．wave power is perfect for creating energy around the world |
| D．wave power doesn’t create any pollution. |
The underlined word “drawbacks” probably means ______．
| A．regrets | B．adventures |
| C．disadvantages | D．difficulties |
What can be the best title for the passage?
| A．How to Get Electricity by Waves． |
| B．A Huge Resource of Energy． |
| C．Can Waves Make Electricity? |
| D．The Disadvantages of Wave Energy． |
Why does most of the world travel on the right side today? Theories differ, but there's no doubt Napoleon was a major influence. The French have used the right since at least the late 18th century. Some say that before the French Revolution, noblemen drove their carriages on the left, forcing the peasants to the right. Regardless of the origin, Napoleon brought right-hand traffic to the nations he conquered, including Russia, Switzerland and Germany. Hitler, in turn, ordered right-hand traffic in Czechoslovakia and Austria in the 1930s. Nations that escaped right-hand control, like Great Britain, followed their left-hand tradition.
The U.S. has not always been a nation of right-hand drivers; earlier in its history, carriage and horse traffic travelled on the left, as it did in England. But by the late 1700s, people driving large wagons pulled by several pairs of horses began promoting a shift (改变) to the right. A driver would sit on the rear (后面的) left horse in order to wave his whip (鞭子) with his right hand; to see opposite traffic clearly, they travelled on the right.
One of the final moves to firmly standardize traffic directions in the U.S. occurred in the 20th century, when Henry Ford decided to mass-produce his cars with controls on the left ( the reason was stated in a 1908 catalog: the convenience for passengers exiting directly onto the edge, especially if there is a lady to be considered).Once these rules were set, many countries eventually adjusted to the right-hand standard, including Canada in the 1920s, Sweden in 1967 and Burma in 1970.The U.K. and former colonies such as Australia and India are among the Western world's few remaining holdouts(坚持不变者).Several Asian nations, including Japan, use the left as well—though many places use both right-hand-drive and left-hand-drive cars.Why did people in Switzerland travel on the right?
| A．They had used the right-hand traffic since the 18th century. |
| B．Rich people enjoyed driving their carriages on the right. |
| C．Napoleon introduced the right-hand traffic to this country. |
| D．Hitler ordered them to go against their left-hand tradition. |
Of all the countries below, the one that travels on the right is ______.
| A．Austria | B．England | C．Japan | D．Australia |
Henry Ford produced cars with controls on the left ______.
| A．in order to change traffic directions in the U.S. |
| B．so that passengers could get off conveniently |
| C．because rules at that time weren't perfect |
| D．though many countries were strongly against that |
According to the passage, which of the following is TRUE?
| A．Before the French Revolution, all the French people used the right. |
| B．People in Britain and the U.S. travel on the same side nowadays. |
| C．The Burmese began to travel on the right in 1970. |
| D．All the Asian nations use the left at present. |
I love charity shops and so do lots of other people in Britain because you find quite a few of them on every high street. The charity shop is a British institution, selling everything from clothes to electric goods, all at very good prices. You can get things you won't find in the shops anymore. The thing I like best about them is that your money is going to a good cause and not into the pockets of profit-driven companies, and you are not damaging the planet, but finding a new home for unwanted goods.
The first charity shop was opened in 1947 by Oxfam. The famous charity's appeal to aid postwar Greece had been so successful that it had been flooded with donations. They decided to set up a shop to sell some of these donations to raise money for that appeal. Now there are over 7,000 charity shops in the UK. My favorite charity shop in my hometown is the Red Cross shop, where I always find children's books, all 10 or 20 pence each.
Most of the people working in the charity shops are volunteers, although there is often a manager who gets paid. Over 90% of the goods in the charity shops are donated by the public. Every morning you see bags of unwanted items outside the front of shops, although they don't encourage this, rather ask people to bring things in when the shop is open.
The shops have very low running costs, and all profits go to charity work. Charity shops raise more than ￡110 million a year, funding medical research, overseas aid, supporting sick and poor children, homeless and disabled people, and much more. What better places to spend your money? You get something special for a very good price and a good moral sense. You provide funds to a good cause and step lightly on the environment.The author loves the charity shop mainly because of ______.
| A．its convenient location |
| B．its great variety of goods |
| C．its spirit of goodwill |
| D．its nice shopping environment |
The first charity shop in the UK was set up to ______ .
| A．sell cheap products |
| B．deal with unwanted things |
| C．raise money for patients |
| D．help a foreign country |
Which of the following is TRUE about charity shops?
| A．The operating costs are very low. |
| B．The staff are usually well paid. |
| C．90% of the donations are second-hand. |
| D．They are open twenty-four hours a day. |
The health and welfare of every person in America will be affected by global warming, especially children, the elderly and the poor, according to a new White House science report.
The report said every region (地区) of the country will suffer worse health from heat waves and drought. All but a handful of states would have worse air quality and flooding. It predicts an increase in diseases spread by tainted (腐烂的) food, bad water and bugs (臭虫).
The report concludes that climate change causes real risk to human health and human system that supports the way of life in the United States.
Man-made global warming is caused by greenhouse gases from the burning of fossil fuels. At current emission (放射) levels, global temperatures are likely to rise by about 2 degrees by midcentury and about 7.5 degrees by the end of the century.
The most vulnerable (脆弱的) Americans — the poor, elderly, sick, very young and immigrants — will suffer more. That’s at least 10 percent of the country’s population, probably more. It will be tougher for these people to get enough health care for climate-related illnesses, to cool down in heat waves, to escape extreme events such as Hurricane Katrina, and even to get enough food.
While every region of America is vulnerable to global warming’s health and welfare effects, more people are moving to coastal regions, which are most vulnerable to climate change because of drought and hurricanes.According to the report, we learn all of the following will risk human’s health EXCEPT ______.
| A．heat waves and drought |
| B．increase in the number of bugs |
| C．reduction in carbon dioxide emissions |
| D．global warming and climate change |
What does the underlined sentence in Paragraph 2 mean?
| A．All of states would suffer flooding. |
| B．Air quality in few states is not high. |
| C．About half of all states would have clear air. |
| D．Flooding would occur in almost all the states. |
Which of the following is NOT true according to the passage?
| A．Global warming is caused by human beings. |
| B．It is wise for the Americans to move into coastal regions. |
| C．Global temperatures are increasing year by year because of carbon dioxide. |
| D．At least one tenth of Americans are more likely to suffer climate-related illnesses. |
The writer wrote this passage to ______.
| A．explain how the phenomenon of global warming forms |
| B．protect the vulnerable Americans from suffering from diseases |
| C．provide evidence that global warming and climate change risk human’s health |
| D．warn every American of the danger of global warming to their health |
Put sunscreen (防晒油) on before going out in the sun.
·Take it with you.
·Use it
— after a swim.
— every hour or so while playing outdoors.
— if you get sweaty.
·Cover up when the sun is overhead
— 10 a.m.—2 p.m..
— especially at lunch time.
·Get your suntan (晒黑) gradually and not too much.
·Controlled exposure (暴露) to sunshine helps avoid skin cancer.
Ask your chemist to recommend a suitable sunscreen.
Queensland Cancer Fund
P. O. Box
Spring Hill, QLD.4000
Phone (07) 8397077
Provided for community awareness by the Queensland CancerThis passage is most likely to be ______.
| A．an article from a student text book |
| B．a direction from a bottle of medicine |
| C．a suggestion from a chemist |
| D．an advertisement from a newspaper |
Which statement is TRUE?
| A．You should frequently put on sunscreen while playing outdoors. |
| B．You’ll never have skin cancer with controlled exposure. |
| C．You mustn’t stay outside from 10 a.m. to 2 p.m. |
| D．The more you get sunshine, the better your health will be. |
According to the passage we can see that Queensland Cancer Fund wants to _____.
| A．sell sunscreen, shirt and hat |
| B．help people guard against skin cancer |
| C．encourage people to play in the sun |
| D．make money out of sunscreen |
If you want a sunscreen, you should ask _____ for advice.
| A．the seller | B．the advertiser |
| C．your doctor | D．your parents |
For most caffeine(咖啡因)consumers, its chief benefit is that it helps you get more done. This is what makes it unusual, says Stephen Braun, author of Buzz: The Science and Lore of Alcohol and Caffeine.
“Its appeal is that it helps us earn more money,” he adds. “What makes it different from other drugs is that it’s used as a productivity tool –– not for pleasure.”
Many of history’s creative minds have also been associated with a large amount of caffeine consumption.
According to one biographer, the French novelist and playwright Balzac drank as many as 50 cups of coffee a day. “Were it not for coffee one could not write, which is to say one could not live,” he once insisted.
For seven years, the film-maker David Lynch ate at the same Los Angeles diner every day, drinking up to seven sweetened cups of coffee “with lots of sugar” in one sitting, which he said would guarantee that “lots of ideas” arrived.
Ludwig van Beethoven was said to have painstakingly counted out exactly 60 coffee beans per cup when he brewed(煮)coffee.
Perhaps recent tales of caffeine excess featured the singer Robbie Williams, who reportedly consumed 36 cups of black coffee and 20 cans of Red Bull a day.
It is the routine task itself, as much as the stimulating(刺激的)effects of caffeine, that makes the process so important, says Mason Currey, author of Daily Rituals: How Artists Work. “A lot of artists use the process of making coffee as a gateway to the creative process,” he adds. “You need to get into the right mindset to do that sort of work, and the preparation process provides a focus.”
One problem with attempting to control caffeine, says Braun, is that it affects everyone differently –– it is impossible to work out a “safe” limit that works for everyone. “Eventually, you have to become your own scientist –– there isn’t an alternative to careful self-experimentation,” he says.Stephen Braun mainly stresses caffeine’s _______.
| A．creating ideas | B．improving work efficiency |
| C．helping people to relax | D．stimulating people |
The examples of some famous people are given to show that _______.
| A．most artists like drinking coffee |
| B．drinking coffee helps artists make more money |
| C．there’s a link between drinking coffee and creating ideas |
| D．drinking coffee makes artists become more successful |
What leads to the artists’ creative process according to Mason Currey?
| A．Getting a good mindset. | B．Drinking the coffee. |
| C．Being lost in thought. | D．Brewing the coffee. |
What does Braun advise us to do in the end?
| A．To drink less coffee. |
| B．Never to take more coffee than you need. |
| C．Never to limit caffeine use. |
| D．To work out a safe level of caffeine use. |