Cell phones: is there a cancer link?
Could your cell phone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and Wi-Fi could be responsible for a range of illnesses, from rashes to brain tumors.
Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there’s a greater than 95 percent chance that power lines can cause childhood leukemia(白血病). Also there’s a greater than 90 percent chance that cell phones can cause brain tumors. “It’s apparent now that there’s a real risk, ” said Carpenter.
But others believe these concerns are unjustified. Dr Martha Linet, the head of radiation epidemiology(流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don’t support warning labels for cell phones, ” said Linet. “We don’t have the evidence that there’s much danger. ”
Studies so far suggest a weak connection between EMFs(电磁场) and illness— so weak that it might not exist at all. A multinational investigation of cell phones and brain cancer, in 13 countries outside the US, has been underway for several years. It’s funded in part by the European Union, in part by a cell phone industry group. The final report should come out later this year, but data so far don’t suggest a strong link between cell phone use and cancer risk.
【小题1】From the passage we can learn that some people are worried because _______.
| A．they have evidence that the use of cell phones can lead to cancer |
| B．they make a fuss over cell phone use |
| C．some experts have given a warning |
| D．cell phones are responsible for brain tumors |
| A．the worrying is unnecessary |
| B．cancer-warning labels should be on cell phones |
| C．there is a link between cell phones and cancer |
| D．cell phones have nothing to do with cancer |
| A．Optimistic. | B．Objective. |
| C．Opposite. | D．Casual. ] |
【小题1】C
【小题2】A
【小题3】B
解析试题分析：文章讲述的是关于手机等辐射是否对人体有害的各方观点。
【小题1】推理判断题。根据文中第二段的内容可知，有些专家明确辐射会致病，并警告人们。选C
【小题2】推理判断题。根据第四段最后一句but data so far don’t suggest a strong link between cell phone use and cancer risk.可知，该专家认为没有任何证据可以证明辐射可以对人体造成伤害。所以这些担心是没有必要的，选A
【小题3】推理判断题。文中作者并没有明确表明自己赞成还是反对的观点，所以是比较客观 地看待该问题。选B
考点：考查健康类短文
科目：高中英语 来源： 题型：阅读理解
请阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该选项的标号涂黑。
【小题1】What you are reading is a(n) _______.
| A．draft | B．poster | C．schedule | D．advertisement |
| A．260 yuan. | B．1140 yuan. | C．1400 yuan | D．1220 yuan |
| A．370 yuan | B．360 yuan | C．350 yuan | D．300 yuan |
| A．Not all the restaurants accept the special coupons on that day. |
| B．With the money for one shirt, I can get two shirts. |
| C．A woman with her baby can’t get the cokes and popcorn at UME. |
| D．I can see a Hollywood blockbuster with my lover with 50 yuan on that night . |
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科目：高中英语 来源： 题型：阅读理解
A Healthy Habits Survey（调查）shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1.How many times did you brush your teeth yesterday?
·Finding：A full 33% of seniors brush their teeth only once a day.
·Step：Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2.How many times did you wash your hands or bathe yesterday?
·Finding：Seniors, on average, bathe fewer than 3 days a week. And nearly 30%wash their hands only 4 times a day-half of the number doctors recommend.
·Step：We touch our faces around 3,000 times a day-often inviting germs（病菌）to enter our mouth, nose, and eyes.Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3. How often do you think about fighting germs?
·Finding：Seniors are not fighting germs as well as they should.
·Step：Be aware of germs. Do you know it is not your toilet but your kitchen sponge（海绵）that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
【小题1】What is found out about American seniors?
| A．Most of then have good habits. |
| B．About one third of them brush their teeth only once a day |
| C．All of then are fighting germs better than expected . |
| D．Nearly 30%of then bathe three days a week . |
| A．eight times a day | B．three times a day |
| C．four times a day | D．twice a day |
| A．We should keep from touching our faces . |
| B．There are less than 300 types of bacteria in the mouth . |
| C．We should wash our hands before touching a door handle . |
| D．A kitchen sponge can carry more germs than a toilet . |
| A．a guide book | B．an official document |
| C．a book review | D．a popular magazine |
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科目：高中英语 来源： 题型：阅读理解
All people need to sleep. Sleep is a necessary process that promotes proper body functioning and can improve the quality of your life. Not only is the quantity of sleep important, but also the quality of sleep.
Your bedroom should be shaped to your taste and allow you to sleep in a peaceful environment. One of the biggest mistakes people make in their sleep is to use their bedroom for activities other than sleep. If your bedroom also functions as a command station for your life and work, the likelihood of your sleeping being poor is rather high. Bedrooms should be designed, decorated and used for sleep mainly. TVs, computers and other things should not be in your bedroom if at all possible.
Establishing regular sleeping and waking times can help improve the quality of your sleep especially for those suffering from sleeplessness. Avoid hot food, caffeine, sugar and alcohol at least 4 to 6 hours before your sleep time. Develop a regular exercise program. Proper exercise and nutrition will help improve sleeping patterns. However, avoid exercising 2 hours before sleeping, since this may stimulate your body and make sleeping more difficult.
Establish a pre-bedtime rule that will help you focus on sleep. You can try deep thought，reading or deep breathing and relaxation. Your bedtime rule should be yours. Do not worry about it fitting into a specific category. Do what is best for you.
Things such as room temperature, noise and light levels and even your bed mattress(床垫) can have a lot of effect on the quality of sleep that you experience. Block out distracting noises and lights. You are in your bedroom to sleep and not be distracted by environmental interferences.
【小题1】Which of the following is the best title for the text?
| A．How to Deal with Sleep Problems |
| B．What is the Process of Sleep |
| C．Where Should We Sleep |
| D．How to improve Sleep Quality |
| A．The bedroom has many functions than expected |
| B．Computers can make people sleep fast |
| C．The bedroom is better used only for sleep |
| D．Amusements are forbidden in the bedroom by law. |
| A．A well-decorated bedroom is important to you |
| B．You’d better have steady sleeping and waking time |
| C．Cold food and sugar are good for you |
| D．You need proper exercise just before sleep |
| A．a good sleep environment contributes to good sleep |
| B．blinding lights can make for a good sleep |
| C．bed mattress plays a key part in sleep |
| D．distracted people are sleepless |
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科目：高中英语 来源： 题型：阅读理解
In the Caucasus region of Russia, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many don’t stop at 100! By comparison, in America only 3 people in 100,000 reach 100. But these Russian old people aren’t alone. The Pakistanis, who live high in the Himalaya Mountains, and the Ecuadorans of the Andes Mountains seem to share the secret of long life, too.
These people remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their 60s and 70s, some Caucasians aged 100 to 140, work in the fields beside their great-great-grandchildren. Even the idea of aging is foreign to them. When asked “at what age does youth end?”most of these old people had no answer. Several replied, “Well, perhaps at age 80.”
What accounts for this ability to survive to such old age, and to survive so well？First of all, hard physical work is a way of life for all of these long-lived people. They begin their long days of physical labor as children and never seem to stop. For example, Mr . Rustam Mamedov is 142 years of age. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intention of retiring from his life as a farmer. “Why？What else would I do？”he asks. All these people get healthful rewards from the environment in which they work. They all come from mountainous regions. They live and work at elevations of 1,660 to 1,000 meters above sea level. The air has less oxygen and is pollution-free. This reduced-oxygen environment makes the heart and blood vessel(血管) system stronger.
Another factor that may contribute to the good health of these people is their isolation. To a great extent, they are separated from the pressures and worries of industrial society. Inherited factors also play some role. Most of the longest-lived people had parents and grandparents who also reached very old ages. Good family genes may, therefore, be one factor in living longer.
【小题1】The example of Mr. and Mrs. Mamedov implies that some Caucasians aged 100 to 140 ____.
| A．become weak and hopeless |
| B．are too old to work in the fields |
| C．benefit from physical work |
| D．are still working in the fields |
| A．Retiring from their lives as farmers. |
| B．Having been married for 90 years. |
| C．Hard physical work. |
| D．Having no intentions. |
| A．Clean mountain air. |
| B．Daily hard work. |
| C．Good genes |
| D．Stress and pressure. |
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科目：高中英语 来源： 题型：阅读理解
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.
【小题1】The underlined word “flaws” in the 2nd paragraph most probably means .
| A．evidences | B．facts | C．faults | D．failures |
| 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 |
| 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 |
| A．Sunscreen to Prevent Skin Cancer |
| B．Sunscreen to Increase Skin Cancer |
| C．Skin Cancer Caused by Sunscreen |
| D．Skin Cancer Caused by Freckles |
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科目：高中英语 来源： 题型：阅读理解
The triathlon(铁人三项运动) promises to be one of the most popular Olympic sports.Recently it has drawn huge crowds attracted by athletes swimming 1,500m，cycling 40km，then running 10km without stopping.But what makes an attractive 17yearold girl give up everything for the doubtful pleasure it offers?
Melanie Sears has not yet learnt those oftenrepeated phrases about personal satisfaction，mental challenge and higher targets that most athletes use when asked similar questions.“You swim for 1,500m，then run out of the water and jump on your bike，still wet.Of course，then you freeze.When the 40km cycle ride is over，you have to run 10km，which is a long way when you’re feeling exhausted.But it’s great fun，and all worth it in the end，” she says.
Melanie entered her first triathlon at 14 and she won the junior section.Full of confidence，she entered the National Championships，and although she had the second fastest swim and the fastest run，she came nowhere.“I was following this man and suddenly we came to the sea.We realised then that we had gone wrong.I ended up cycling 20 kilometres too far.I cried all the way through the running.”
But she did not give up and was determined that she never will.“Sometimes I wish I could stop，because then the pain would be over，but I am afraid that if I let myself stop just once，I would be tempted(诱惑) to do it again.”Such doggedness draws admiration from Steve Trew，the sport’s director of coaching.“I’ve just been testing her fitness，” he says, “and she worked so hard on the running machine that it finally threw her off and into a wall.She had given it everything，and she just kept on.”
Melanie was top junior in this year’s European Triathlon Championships，finishing 13th.“I was almost as good as the top three in swimming and running，but much slower in cycling.That’s why I’m working very hard at it.” She is trying to talk her longsuffering parents，who will carry the ￡1,300 cost of her trip to New Zealand for this year’s world championships，into buying a ￡2,000 bike，so she can try 25km and 100km races later this year.
But there is another price to pay.“I don’t have a social life，”she says.“After two hours’ hard swimming on Friday night，I just want to go to sleep.But I phone and write to the other girls in the team.” What does she talk about？Boys？Clothes？“No，what sort of times they are achieving.”
【小题1】How does Melanie differ from other athletes，according to the writer?
| A．She worries less than they do. |
| B．She expresses herself differently. |
| C．Her family background is not like theirs. |
| D．Her aims are different from theirs. |
| A．She was tricked by another competitor. |
| B．She felt she had let her teammates down. |
| C．She made a mistake during part of the race. |
| D．She realized she couldn’t cycle as fast as she thought. |
| A．Buy an expensive bike for her. |
| B．Give her half the cost of a bike. |
| C．Let her compete in longer races. |
| D．Pay for her to go to New Zealand. |
| A．She would like to see them more often. |
| B．She only discusses the triathlon with them. |
| C．She thinks they find her way of life strange. |
| D．She dislikes discussing boys or clothes with them. |
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科目：高中英语 来源： 题型：阅读理解
Beijing, April 2----Starting from this year, the Beijing Municipal Health Bureau will begin to promote a home medical service. With this service a medical team which is made up of a doctor, a nurse and a medical health worker will be sent to some communities in the city. They will set up a medical filing recorder for every resident in community and publicize their contact information to them. If people in the community feel sick, they can consult their community doctor first. If community doctors cannot treat their illness, they will then be transferred to large hospitals. Liang Wan, deputy director of the Beijing Municipal Health Bureau, made the statement last Friday .
In addition ,the Beijing Municipal Health Bureau will set up some funds to train home medical service workers for families whose members suffer either from high blood pressure, diabetes,cerebral apoplexy , or coronary heart disease . The home medical service workers will remind patients to take pills on time and lead the patients to follow some health tips in their daily life. They will also learn some practical knowledge to save patients in case of an emergency .
The work will first begin in the medical service room in the 25 community centers and spread to all communities in Beijing. The disease prevention and control centers at various counties and districts in Beijing will be responsible for teaching community doctors and giving home medical service lectures, or advice . These workers will not be able to work until they pass related examination and obtain the work certificates. It is expected that by the end of this year, there will be 10000 home medical service workers in Beijing .
【小题1】Where does a person go to see first if he gets sick according to the passage ?
| A．The community clinics. | B．Large hospital . |
| C．Private clinic . | D．Small hospital . |
| A．The medical team which is made up of a doctor, a nurse and a medical health worker will set up a medical filing record for every resident. |
| B．The home medical service workers not only give some healthy suggestions to the patients, but also learn practical knowledge about first aid. |
| C．Some funds will be provided by Beijing Municipal Health Bureau for home medical service training. |
| D．The government aims to offer the home medical service for free. |
| A．receive the training about medical service. |
| B．pass related examinations. |
| C．obtain the work certificates. |
| D．All the above. |
| A．All communities in Beijing have started home medical service. |
| B．People in Beijing will not easily get ill. |
| C．Medical service in Beijing will be promoted greatly in the future. |
| D．The other cities in China should learn from Beijing. |
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科目：高中英语 来源： 题型：阅读理解
New research suggests that cutting daily sitting time to less than three hours might extend your life by two years.
“Humans were designed to move. But modern lifestyles and office jobs rarely encourage us to walk around,” says Peter Katzmarzyk, an expert at the University of Louisiana.
“Sitting is common in our lives today. We sit while we’re driving, eating and watching TV. And many of us sit for many hours at work.” Katzmarzyk said.
“We can’t throw away physical activity. It’s extremely important. We have 60 years of researchers showing us that.” Katzmarzyk said.
Katzmarzyk and other researchers are trying to discover how sitting all day affext our lifespans（寿命）.
“This is a relatively new area of study…Studies that have assessed the relationship between sitting and death or television viewing and death have been very rare in the last four or five years,” said Katzmarzyk.
Katzmarzyk and his colleagues analyzed data from these studies, which involved almost 167,000 adults. Then they turned to a government-run survey of Americans to find out exactly how much time people spend sitting and watching.
Not only did the team find that U.S. citizens could live longer by sitting less, they found that cutting TV time to less than two hours a day could add an extra 1.4 years to their lives.
People who’ve spent half their waking lives sitting down might well ask, “Is it ever too late to make a change?”
“We would say ‘No. It’s never too late.’ Physical activity is good for you at every age.” Katzmarzyk said.
Katzmarzyk says studying this problem has inspired his team to make a few changes in their own lives. They recommend a few simple changes: frequently getting up from your desk, taking walks at lunch time, and instead of e-mailing colleagues, walking over to their offices and talking face-to-face——all activities that can be enjoyable as well as life-extending.
【小题1】Peter Katzmarzyk seems to believe that _____.
| A．we should not sit for a long time |
| B．most people like to sit most of the time |
| C．office jobs encourage us to walk a lot |
| D．modern lifestyles are good for our health |
| A．taking physical exercise is important |
| B．many researches should be carried out |
| C．we should exercise during working hours |
| D．people should focus on their health at work |
| A．To collect information for the government |
| B．To know how long people sit and watch TV |
| C．To find what citizens do in their spare time’ |
| D．To discover how sitting for long affects their lives |
| A．What Is the Healthiest Lifestyle？ |
| B．Sitting for a Long Time Is Bad for Us |
| C．Study Suggests Sitting Less Can Extend Life |
| D．It Is Never Too Late to Change Our Way of Life |
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