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 |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。请将答案写在答题纸上。
SELF STUDY TIPS
However difficult you find it to arrange your time, it will pay off in the long run if you set aside a certain part of the day for studying－ and stick to it. 71 . But don’t forget to make sure that you have enough left for recreational activities or simply to be “with” yourself: reading a novel or watching a television programme.
As part of your weekly schedule, it is also advisable to consider exactly what you have to do in that week, and make sure that you handle the most significant tasks first. 72 .
On a physical level, make sure you have an area or space for studying. 73 .If you always study in the same place, preferably a room of your own , you will find it easier to adjust mentally to the activity when you enter that area. You should have everything that you might need at hand.
Make sure that all the physical equipment that you use , such as a desk, chair etc. is at good height for you. If you use a personal computer, there are plenty of guidelines available from the movement on angles, lighting and the like. 74 .
If you are working on topic your teacher has set, but finding it hard to concentrate, it may be that you actually need to take your mind right off it for a period of time. 75 .After a period away from the test, having not thought about it at all, you may return to it refreshed and full of ideas.
| A．It’s wise to leave the easier or less urgent areas of your work until later |
| B．It’s all too easy to read something and then forget where it came from |
| C．Consult these and avoid the typical student aches and pains |
| D．“Airing the mind”can work wonders sometimes |
E．Make use of equipment that is available to you
F．It is best to make a weekly schedule
G．Don’t do it just any where
Unusual incidents are being reported across the Arcitc. Inuit(因纽特人)families going off on snowmobiles to prepare their summer hunting camps have found themselves cut off from home by a sea of mud .There are also reports of sea ice breaking up earlier than usual, carrying seals beyond the reach of hunters. Climate change may still be a rather abstract idea to most of us ,but in the Arctic it is already having great effects –if summertime ice continues to shrink at its present rate ,the Arctic Ocean could soon become almost ice-free in summer .The knock –on effects are likely to include more warming, cloudier skies ,and higher sea levels .Scientists are increasingly eager to find out what’s going on in the Arctic.
For the Inuit the probkm is mgent. They live in unsteady baiance with one of the toughest environments on earth. Climate change, whatever its causes, is a direct danger to their way of life. Nobody knows the Arctic as well as the locals, which is why they are not content simply to stand back and let outsider experts tell them what’s happening. In Canada, where the Inuit people are trying hard to guard their hard-won autonomy in the country’s newest land, Nunavut, they believe their best hope of survival in this changing environment lies in combining their ancestral knowledge with the best of modern science. This is challenge in itself.
The Canadian Arctic is a vast , treeless polar desert that’s covered with snow for most of the year. Adventure into this area and you get some idea of the hardships facing anyone who calls this home. Farming is out of the question and nature offers few pickings. Humans first settled in the Arctic a mere 4,500 years ago, surviving by taking advantage of sea fist. The environment tested them to the limits: sometimes the settlers were successful, sometimes they failed and disappeared. But around a thousand years ago, one group appeared that was uniquely well adapted to deal with the Arctic environment. These Thule people moved in from Alaska, bringing dogs, iron tools and the like. They are the ancestors of today’s Inuit people.Which of the following is not likely to be the effect of
climate change?
| A．Shorter and shorter summertime. |
B．Ice-free summer around th e Arctic. |
| C．Higher sea levels. |
| D．More dloudy skies. |
The Inuit people believe the solution to the climate change problem is .
| A．to change their way of life |
| B．to use their ancestral knowledge |
| C．to make the best of modem science |
| D．to use their ancestral knowledge and modern science |
It can be c
oncluded from the last paragraph that .
| A．the first settlers in the Arctic survived by taking advantage of sea fish |
| B．it’s hard to farm in the Arctic due to the climate change |
| C．the ancestors of Inuit people stood out among the settlers |
| D．the Thule people from Alaska invented iron tools |
Which of the following is the best title of this passage?
| A．Climate change and the Inuit |
| B．Climate change around the Arctic |
| C．Global warming around the world |
| D．The Inuit and their ancestors around the world |
Are you a problem shopper? The answer is “Yes” , if you or someone else thinks that you sometimes get carried away with shopping .In other words ,do you or does someone else think you are occupied in extreme shopping ? If people have regrets later about their shopping , or have an “out-of-control” feeling about the quantities of what they buy or the amount of credit they use , they may be considered to be problem shoppers.
Extreme shopping can lead to a more serious problem –addictive shopping . Addictive shoppers feel driven by the desire to shop and spend money . They experience great tension which drives them to shop and spend money and they feel a “rush” during the time they are occupied with the shopping activity.
Extreme or addictive shopping may result from long-time unpleasant feelings, of which anxiety ,pain and shame are common ones,. When we feel bad inside ,we often do something to make ourselves feel better . In this case ,we often go shopping .
A few people shop to relieve their boredom or emptiness .For some people ,the motivation is a desire for status ,power ,beauty or success .Some love to shop as it makes them feel valued in the eyes of the shop assistants .Others shop simply because it makes them forget , at least temporarily , tension ,fear or unhappiness in their life.
Besides ,shopping malls are designed to encourage continual shopping . For instance ,there are some malls where you can’t see clocks displaying the time because they don’t want you to become too aware of the time you spend there .What’s more ,food courts, coffee shops and restrooms are provided ,so you don’t have to leave the mall because of your physical needs.
Therefore ,once you become aware of how market forces work ,you will certainly come to control your shopping behavior .For example ,how much time you will spend an d what areas you will visit can be decided before you enter the mall. Keep a written account of what items you will buy and how much money you will spend . Make a plan for what you are going to buy before you feel the urge to shop and then stick to it . That is vital for gaining self0control.Which of the following people may not be problem shoppers?
| A．Those who cannot control the amount of credit they use. |
| B．Those who just walk around the shopping malls. |
| C．Those who are occupied in too much shopping. |
| D．Those who feel sorry for their shopping. |
According to the passage, what may not result in addictive shopping?
| A．The awareness of how market forces work. |
| B．The desire for status ,power ,beauty or success. |
| C．Boredom, emptiness ,tension ,fear or unhappiness in people’s life. |
| D．Long-time bad feelings of anxiety ,pain and shame. |
What does the author suggest to control our shopping behaviour?
| A．Never going to the shopping malls because there are many tricks. |
| B．Applying for a credit card before we go shopping. |
| C．Making the shopping time as short as possible. |
| D．Making a shopping list before we go shopping. |
The author writes this passage to .
| A．inform the shopping malls how to attract more shoppers |
| B．provide solutions to the problem shopping. |
| C．scold the problem shoppers |
| D．tell a shopping story |
Eddie’s father used to say he’d spent so many years by the ocean, breathing seawater .Now, away from that ocean ,in the hospital bed ,his body began to look like a beached fish. His condition went from fair to stable and from stable to serious .Friends went from saying , “He’ll be home in a day,” to “He’ll be home in a week .” In his father’s absence ,Eddie helped out at the pier(码头), working evenings after his taxi job.
When Eddie was a teenager ,if he ever complained or seemed bored with the pier ,his father would shout, “What ? This isn’t good enough for you?” And later ,when he’d suggested Eddie take a job there after high school ,Eddie almost laughed, and his father again s
aid, “What? This isn’t good enough for you ?” And before Eddie went to war , when he’d talked of marrying Marguerite and becoming an engineer ,his father said , “What? This isn’t good enough for you ?”
And now ,regardless of all that ,here he was ,at the pier ,doing his father’s labor.
Parents rarely let go of their children ,so children let go of them .They move on. They move away .It is not until much later, as the heart weakens ,that children understand ;their stories, and all their accomplishments ,sit on top of the stories of their mothers and fathers ,stones upon stones , beneath the waters of their lives.
Finally ,one night ,
at his mother’s urging ,Eddie visited the hospital .He entered the room slowly .His father ,who for years had refused to speak to Eddie ,now lacked the strength to even try.
“Don’t sweat it ,kid,” the other workers told him. “Your old man will pull through .He’s the toughest man we’ve ever seen.”
When the news came that his father had died ,Eddie felt the emptiest kind of anger ,the kind that circles in its cage.
In the weeks that followed, Eddie’s mother lived in a confused state . She spoke to her husband as if he were still there .She yelled at him to turn down the radio . She cooked enough food for two .One night ,when Eddie offered to help with the dishes ,she said. “Your father will put them away.” Eddie put a hand on her shoulder. “Ma,” he said ,softly , “Dad’s gone.”
“Gone where?”In Paragraph 4, the writer indicates that .
| A．Children like moving away from them parents |
| B．Children often feel regretful because they leave their parents |
| C．Children wouldn’t have achieved so much without their parents’ support |
| D．Children can never understand how much their parents have devoted to them |
The underlined sentence probably means “ ”.
| A．Don’t give it up | B．Don’t worry about it |
| C．Don’t let him down | D．Don’t touch it |
Which of the following shows the right order of the story?
a．Eddie’s father died.
b．Eddie worked as a taxi driver.
c．Eddie married Marguerite.
d．Eddie was bored with his father’s job.
| A．baed | B．deab | C．beda | D．deba |
From the last part of the passage ,we learn that .
A．Eddie’s mother liked to l isten to the radio |
| B．Eddie often helped his mother wash the dishes |
| C．Eddie and his wife lived in his mother’s apartment |
| D．Eddie’s mother missed her husband so much that she was at a loss |
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
STUDY CENTER COURSESFrom Paragraph to essayOf particular relevance to students who wish to improve their organizationalskills and who feel that their final product is never clear enough.Thursday 10:00—12:00 Kiran Singh |
Source MaterialHow do you gather information for a project or paper? A practical course which looks at sources of information and how to use cataloguing systems.Monday 10:00—11  :00Kiran Singh |
| Express Yourself An advanced course suitable for students who are about to step into organizations where they may have to voice their opinions often. Monday 12:00—2:00 Dave Parrin |
Media UseOpen to all students ,this course focuses on the many ways we can benefit from the radio and television. Group projects form part of course.Tuesday 9:00—11:00 Steve Ansell |
The Short StoryA research into the world of popular writers. One story is selected for adaptation into a short play and group performance. Pre-arranged groups welcome.Thursday 11:00—1:30 Mrs Owen |
Caught for SpeedingOpen to all students .Simple eye exercises to help you with speed reading. How to be selective on the page . Using headings, topic sentences and paragraphs for easy access.Wednesday 11:00—1:00 Mrs Owen |
| Tense about Tenses For those who worry about their use of words—a look at tenses and other aspects of the language through poetry and song. Good voice helps but not a must. Saturday 10:00—12:00 Steve Ansell |
If a student takes the course The Short Story, he can’t take .
| A．From Paragraph to Essay | B．Tense about Tenses |
| C．Source Material | D．Media Use |
Which of the courses can develop the students’ team work?
| A．From Paragraph to Essay | B．The Short Story |
C．Caught for Speedi ng |
D．Express Yourself |
From where can a student read this?
| A．On the radio. | B．On television. |
| C．In a local newspaper. | D．On a school notice board. |
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