A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma(黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence(发生率)faster than any other cancer in the United States.
But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.
The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer—people with fair skin and freckles(雀斑), for example—are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.
The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.The underlined word “flaws” in the 2nd paragraph most probably means .
| A．evidences | B．facts | C．faults | D．failures |
People with fair skin and freckles .
| A．seldom use sunscreen |
| B．are more in danger of skin cancer |
| C．can be free from the harm of the sun |
| D．often expose themselves to the sun |
We can learn from the passage that .
| A．sunscreen users get skin cancer more often |
| B．the volunteers have proved the effect of sunscreen |
| C．the new study was based on the experiences of volunteers |
| D．the number of skin cancer patients is increasing in America |
Which of the following can be the best title for this passage?
| A．Sunscreen to Prevent Skin Cancer |
| B．Sunscreen to Increase Skin Cancer |
| C．Skin Cancer Caused by Sunscreen |
| D．Skin Cancer Caused by Freckles |
MONTREAL (Reuters) – Crossing the US-Canada border to go to church on a Sunday cost an American ＄10,000 for breaking Washington’s strict new security rules.
The expensive trip to church was a surprise for Richard Albert, who lives on the Canadian border. Albert often crosses the border like the other half-dozen people of Township 15. The nearby Quebec village of St. Pamphile is where they shop, eat and go to church. There are many such situations in these areas along the largely unguarded 5,530-mile border between Canada and the US, which in some cases actually runs down the middle of streets or through buildings.
As a result, Albert says he did not expect any problems three weeks ago when he returned home to the US after attending church in Canada as usual. The US customs station in this area is closed on Sundays, so he just drove around the locked gate, as he had done every weekend since the gate appeared last May, following a tightening of border security. Two days later, Albert was told to go to the customs office, where an officer told him he had been caught on camera crossing the border illegally.
Ottawa has given out special passes to some 300 Americans in that area so they can enter the country when Canadian customs stations are closed, but the US stopped a similar program last May. That forces the people to a 200-mile detour along hilly roads to get home through another border checkpoint.
Albert has requested that the customs office change their decisions on the fine, but he has not attended a Sunday church since. “I feel like I’m living in a prison,” he said.We learn from the text that Richard Albert is .
| A．an American working in a Canadian church |
| B．a Canadian living in a Quebec village |
| C．a Canadian working in a customs station |
| D．an American living in Township 15 |
Albert was fined because he .
| A．broke the American security rules |
| B．failed to obey traffic rules |
| C．worked in St. Pamphile without a pass |
| D．damaged the gate of the customs office |
According to paragraph 4, how can Americans in that area get home?
| A．They have to drive through the town. |
| B．They have to race across the fields. |
| C．They have to drive to the mountain area. |
| D．They have to drive in a roundabout (绕道的) way. |
What would be the best title for the text?
| A．A Cross-country Trip. | B．An Expensive Church Visit. |
| C．An Unguarded Border. | D．A Special Border Pass. |
Global warming is the process of earth’s atmosphere heating up. Over the last 100 years, the average temperature of earth’s atmosphere has gone up 1 Fahrenheit. The weather has not changed exactly the same way in every area of the planet. But scientists think that the rise in average temperature is already affecting the earth’s climate.
Many scientists now believe that global warming is caused by cutting down trees, producing more trash, and polluting the environment which are some of the reasons why the temperature has gone up. Many scientists believe that the biggest causes of global warming are new human technologies that release greenhouse gases into the atmosphere.
The greenhouse effect is not new. Certain gases in the atmosphere, like carbon dioxide, nitrous oxide and methane, making it hard for heat energy to go into space. In the past, the climate didn’t change much because nature produced just the right amount of greenhouse gases to deal with it.
Today, most scientists are pretty sure that the rising temperature can’t be blamed on nature. Ever since the industrial revolution in the 1700s, humans have relied on machines for daily life. And many of those machines give off a lot of greenhouse gases. An increase in the release of greenhouse gases from human activities is throwing nature off balance.
The climate is a very complicated thing, but many scientists agree that the rising atmospheric temperature has already damaged the environment. Sheets of ice, called glaciers, are melting in Antarctica and other parts of the globe. As glaciers break off and melt into the oceans, they are adding warm water to the oceans and causing the sea level to rise.
Over the past 100 years, the sea level has risen 6-8 inches around the world. That means land along the coasts is beginning to disappear under water. Bigger and warmer oceans are also adding to other weather problems caused by pollution in the atmosphere. Some places have received more rain, others have had bigger storms and a few areas in the world have experienced unusual droughts.What is mainly talked about in this passage?
| A．The melting of glaciers. | B．Global warming. |
| C．The world’s weather. | D．The earth’s temperature. |
What causes global warming according to scientists?
| A．Human activities. | B．The nature itself. |
| C．The earth’s atmosphere. | D．New discoveries |
How can greenhouse gases make the globe warm?
| A．They keep heat in the atmosphere. |
| B．They let the heat go out into space. |
| C．They release heat into the air |
| D．They can make the other gases warm. |
From the passage we can see that global warming will bring about _____.
| A．the pollution in the atmosphere | B．natural disasters |
| C．population pollution | D．the rise of glaciers |
I have had just about enough of being treated like a second-class citizen, simply because I happen to be that unfairly treated member of society --- a customer. The more I go into shops and hotels, banks and post offices, railway stations, airports and the like, the more I am convinced the things are being run solely to suit the firm, the system, or the union. There seems to be a deceptive (欺骗的) new motto for so-called “service” organizations --- Staff Before Service.
How often, for example, have you queued for what seems like hours at the Post Office or the supermarket because there were not enough staff on duty to man all the service grilles or checkout counters? Surely in these days of high unemployment it must be possible to hire cashiers and counter staff. Yet supermarkets, hinting darkly at higher prices, claim that uncovering all their cash registers at any one time would increase operating costs. And the Post Office says we cannot expect all their service grilles to be occupied “at times when demand is low”.
It is the same with hotels. Because waiters and kitchen staff must finish when it suits them, dining rooms close earlier or menu choice is cut short. As for us guests, we just have to put up with it. There is also the nonsense of so many friendly hotel night porters having been thrown out of their jobs in the interests of “efficiency” and replaced by coin-eating machines which offer everything from lager to laxatives (从贮藏啤酒到通便剂). Not to mention the tea-making kit in your room: a kettle with a mixed collection of tea bags, plastic milk boxes and lump sugar. Who wants to wake up to a raw teabag? I do not, especially when I am paying for “service”.
Can it be stopped, this worsening of service, this growing attitude that the customer is always a bore? I angrily hope so because it is happening, sadly, in all walks of life.
Our only hope is to hammer home our anger whenever and wherever we can and, if all else fails, bring back into practice that other, older slogan --- Take Our Deal Elsewhere.The writer feels that nowadays customers __________.
| A．deserve the lowest status in society |
| B．are unworthy of proper consideration |
| C．have received high quality service |
| D．have become victims of modern organizations |
The writer argues that the quality of service is changing because __________.
| A．customers’ demands have greatly changed |
| B．the staff receive more consideration than customers |
| C．customers’ needs have become more complex |
| D．staff members are less considerate than their employers |
According to the writer, long queues at counters are caused by __________.
| A．not having enough male staff on duty |
| B．difficulties in hiring more efficient staff |
| C．lack of cooperation between staff members |
| D．not providing enough staff on purpose to reduce budget |
The writer suggests that a customer __________.
| A．be patient when queuing before checkout counters |
| B．put up with the rude manners of the staff |
| C．try to control his temper when ill-treated |
| D．go to other places where good service is available |
They once seemed more at home on the busy streets of Asia like Delhi, Calcutta and Bangkok but cycle powered rickshaws (人力车) can now be seen taking people across town in many European cities. Many people believe that rickshaws are a good way of experiencing a city close-up, while also cutting down on traffic jams and pollution. In Berlin, one of the first cities to introduce this new model of transport, more than 200 bike-taxis go along at 15km per hour, past many tourist attractions and city parks.
“It is completely environmentally friendly; we have new models with an engine to help the driver up the hills but they use renewable energy.” said a spokesman for VELOTAXI, the leading rickshaw company which has carried a quarter of a million people this year.
While the city still has 7,000 motor-taxis, rickshaw company officials say their taxis’ green ideas, speed and safety make them more than just a tourist attraction. While now increasingly out of fashion in Delhi, Berlin people have eagerly accepted the new fleet since their launch in 1997.
“It’s better than a taxi, better than a bus, better than the train,” said ULF Lehman, 36, as he leapt out of a rickshaw near the world famous Brandenburg gate. “ It feels so free.”
“This is something out of the ordinary, you feel you are on holiday in Bangkok instead of Berlin,” said another traveler.
In Amsterdam, driver Peter Jancso said people like to be driven around in his bright yellow rickshaw and pretend to be a queen in a golden carriage. "I like my passengers to feel important," he said as he dropped off another passenger. Another visitor noted how cheap it was compared with a normal taxi.
Although increasingly popular in Europe, it is the opposite in India, where hand-pulled rickshaws are considered inhuman and a symbol of India’s backward past.
Nearly 500 bike-rickshaws are running in London and are not required to pay the city’s road tax but things may change as other taxi drivers complain of unfair treatment.Where are rickshaws becoming more popular?
| A．Delhi, Berlin, Paris. | B．Amsterdam, Bangkok, Delhi. |
| C．Athens, London, Berlin. | D．Berlin, Amsterdam, London. |
Why are rickshaws no longer as widely used in India as in the past?
| A．They are a reminder of a bad period in India’s history. |
| B．They have been banned because they are inefficient. |
| C．The streets of India are too crowded for them to move through easily. |
| D．Indians now prefer to travel by car because they are richer. |
What does the underlined sentence "This is something out of the ordinary, you feel you are on holiday in
Bangkok instead of Berlin" suggest?
| A．The passenger didn’t like taking a rickshaw as it reminded him of Bangkok. |
| B．The passenger enjoyed being on holiday in Berlin more than in Bangkok. |
| C．The passenger was impressed when taking a rickshaw and considered it unusual. |
| D．The passenger disapproved of rickshaws because they were not original to Berlin. |
What is the author’s attitude towards rickshaws?
| A．He gives no personal opinion. |
| B．He believes they will be of no use. |
| C．He thinks they will reduce pollution. |
| D．He thinks they are old-fashioned. |
For several days I saw little of Mr. Rochester. In the morning he seemed much occupied with business, and in the afternoon gentlemen from the neighborhood called and sometimes stayed to dine with him. When his foot was well enough, he rode out a great deal.
During this time, all my knowledge of him was limited to occasional meetings about the house, when he would sometimes pass me coldly, and sometimes bow and smile. His changes of manner did not offend me, because I saw that I had nothing to do with the cause of them.
One evening, several days later, I was invited to talk to Mr. Rochester after dinner. As I was looking at him, he suddenly turned, and asked me, “Do you think I’m handsome, Miss Eyre?”
The answer somehow slipped from my tongue before I realized it: “No, sir.”
“Ah, you really are unusual! You are a quiet, serious little person, but you can be almost rude.”
“Sir, I’m sorry. I should have said that beauty doesn’t matter, or something like that.”
“No, you shouldn’t! I see, you criticize my appearance, and then you stab（刺）me in the back! You have honesty and feeling. There are not many girls like you. But perhaps I go too fast. Perhaps you have awful faults to counterbalance your few good points.”
I thought to myself that he might have too. He seemed to read my mind, and said quickly, “Yes, you’re right. I have plenty of faults. I went the wrong way when I was twenty-one, and have never found the right path again. I might have been very different. I might have been as good as you, and perhaps wiser. I am not a bad man, take my word for it, but I have done wrong. It wasn’t my character, but circumstances that were at fault. Why do I tell you all this? Because you’re the sort of person people tell their problems and secrets to, because you’re sympathetic and give them hope.”
“Don’t be afraid of me, Miss Eyre.” He continued. “You don’t relax or laugh very much, perhaps because of the effect Lowood school has had on you. But in time you will be more natural with me, and laugh, and speak freely. You’re like a bird in cage. When you get out of the cage, you’ll fly very high. Good night.”Which of the following cannot describe Miss Eyre’s first impression of Mr. Rochester?
| A．Friendly. | B．Sociable. | C．Busy. | D．Changeable |
Why did Mr. Rochester say “…and then you stab me in the back!”?
| A．Because Jane had intended to kill him with a knife. |
| B．Because Jane had intended to be more critical. |
| C．Because Jane had regretted having a talk with him. |
| D．Because Jane had said something else to correct herself. |
From what Mr. Rochester said to Miss Eyre, we conclude that he wanted to __________.
| A．tell her all his troubles | B．tell her his life experience |
| C．change her opinion of him | D．change his circumstances |
At the end of the passage, Mr. Rochester sounded __________.
| A．rude | B．cold | C．depressing | D．encouraging |