Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.
If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(萬(wàn)億)minutes annually - earn $109 billion for the wireless carriers.
Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable（易受傷的）to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid（易吸收的液體）. No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen（腹部）.
小題1:According to Ms Davis, brain cancer increase ____.
A．a(chǎn)mong childrenB．a(chǎn)mong old people
C．in the twentiesD．a(chǎn)mong pregnant women
小題2:Why do children easily be affected by radiation?
A．Because they haven’t grown up.
B．Because they are too young to protect themselves.
C．Because they use cell phones more often than adults.
D．Because their skulls are thinner and their brains are easily hurt.
小題3:What can we conclude from the last paragraph?
A．Pregnant women should keep cell phones away.
B．People should use cell phones in the correct way.
C．If you are a child, you’d better text than make phone calls.
D．When you use a cell phone, use a wired headset or the phone’s speaker.
小題4:What does the passage mainly talk about?
A．Be careful when using cell phones.
B．Don’t hold your cell phone against your ear.
C．Rats exposed to radiation have damaged DNA in their brains.
D．Low-energy radiation could damage cells that could lead to cancer.

小題1:C
小題2:D
小題3:B
小題4:A

試題分析：本文講述的是使用手機(jī)會(huì)帶來(lái)輻射的負(fù)影響，因此需要正確使用手機(jī)。
小題1: C. 細(xì)節(jié)理解題。根據(jù)第四段“But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population”可腦癌主要發(fā)生在20多歲的時(shí)候，故選C項(xiàng)。
小題2: D. 細(xì)節(jié)理解題。根據(jù)“Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid（易吸收的液體）”可知，小孩更容易受輻射的影響是因?yàn)樗麄兊念^骨更薄，大腦更容易受傷，故選D項(xiàng)。
小題3: B. 推理判斷題。最后一段“Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen”所講述的都是一些正確使用手機(jī)以防止輻射的影響的方法，由此判斷選B項(xiàng)。
小題4:A. 主旨大意題。本文主要介紹使用手機(jī)的負(fù)作用，最后警示人們要正確使用手機(jī)。因此A項(xiàng)更能說(shuō)明全文的主旨，而其它三項(xiàng)只是文中的細(xì)節(jié)內(nèi)容，故選A項(xiàng)。
點(diǎn)評(píng)：本文講述的是使用手機(jī)會(huì)帶來(lái)輻射的負(fù)影響，因此需要正確使用手機(jī)。文章基本上是考查細(xì)節(jié)題，對(duì)此類(lèi)題型考生可以首先從問(wèn)題中找到關(guān)鍵詞，然后以此為線(xiàn)索，運(yùn)用略讀及查閱的技巧在文中迅速尋找這一細(xì)節(jié)，找到后再把這一部分內(nèi)容仔細(xì)閱讀一遍，仔細(xì)比較所給選項(xiàng)與文中細(xì)節(jié)的細(xì)微區(qū)別，在準(zhǔn)確理解細(xì)節(jié)的前提下，最后確定最佳答案。
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Health experts are calling for action to increase cancer care and control in the developing world. A medical research paper says cancer was once thought of as a problem mostly in the developed world. But now cancer is a leading cause of death and disability in poor countries as well. Experts from Harvard University and other organizations urge the international community to fight cancer actively, saying it should be fought in the way HIV/AIDS has been fought in Africa.
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A．Cancer – a leading cause of death in poor countries
B．What should we do in preventing and treating cancer?
C．What makes the first killer in developing countries?
D．Experts urge more efforts to fight cancer.
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D．patients with breast cancer are treated differently
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C．breast cancer is the second killer among women in Mexico
D．patients can be treated effectively in developing countries
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A．The cancer patients. B．The health experts.
C．Community health workers.D．Young women.
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A．The number of cancer cases is decreasing.
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C．Over 7.5 million people die of cancer every year.
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

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B．a(chǎn)dvise night workers to keep healthy
C．encourage workers to do day work
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B．A regular life on weekday’s and weekends.
C．A dark room without phoebes to sleep in.
D．A break for sleeping anytime during the day.
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C．If he falls to get quality sleep through his own efforts.
D．If he has the problem of bailing to sleep in the daytime.
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A．night workers need a long time to fall asleep
B．constant breaks at work help to improve performance
C．it is difficult to create a good sleep environment
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A．it is not very hard to control TB
B．smoking indirectly leads to TB
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Scientists in the United States have developed an experimental system that uses a high-tech optical scanner. The system is designed to identify the presence of contaminants(致污物) like soil or animal waste on fresh produce. These can be sources of E. coli. E. coli bacteria naturally live in the intestines(腸) of humans and many animals. Most kinds of E. coli are harmless but some can make people sick.
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Scientists designed the system at a Department of Agriculture research center in Beltsville, Maryland. Moon Kim of the Agricultural Research Service led the team.
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Moon Kim says the team hopes the system will be available before long.
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小題1:What is the main topic of the text?
A．Bacteria. B．A high-tech scanner.C．A camera D．Food safety.
小題2:E. coli bacteria ______.
A．broke out all over the world B．comes from soil or animal waste
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A．can help to sort out different fruits
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D．can identify the presence of contaminants
小題4:What can be inferred from the text?
A．The scanner needs to be improved.
B．The scanner will be available in the next several years.
C．Moon Kim is unwilling to develop the scanner.
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

A
Car needs gas to run as your body needs food to work for you. Eating the right kinds of food is very important. A good eating habit can help your body grow strong if you take care of what you eat.
There are four main food groups altogether. The dairy group has food like milk, cheese and sour milk. The other three groups are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at least one food from all four main groups. With all of these foods together, you will be given enough energy during the day.
It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school on time or you may not have time for a good lunch. It may be easier to eat fish and chips for your supper all the time. But you will find yourself tired and you will not be able to think quickly.
Watching what you eat will help keep your body healthy and strong. It is also good to take some exercise. It will help you eat more if you take a walk or play games in the open air. Having good eating habits with some exercise is the key to your health.
小題1:According to the passage, which of the following diets do you think is the best one?
A．Eggs, tomatoes and chicken.
B．Milk, bread, cabbages and beef.
C．Corn, fish, ice cream and pork.
D．Rice, beancurd(豆腐)，fish and chicken.
小題2:Which of the following is a good eating habit?
A．Going to school without any breakfast.
B．Eating fish and chips for supper all the time.
C．Having at least food from one of the four groups each meal.
D．Having different food from all four food groups.
小題3: In this passage the writer mainly tells us that____.
A．every person needs food to grow well.
B．taking exercise can keep your body strong.
C．the right kind of food with exercise will keep you healthy.
D．enough energy helps people think more quickly.
小題4:The underlined word “dairy” in the second paragraph means_____.
A．the food made out of cows such as milk and butter
B．the shop that sells milk and butter
C．a(chǎn) farm where cows are kept
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

閱讀下面短文，從各題A、B、C、D四個(gè)選項(xiàng)中，選出最佳答案。
People who smoke could lose around one third of their daily memory, researchers say.
A study by a team at Northumbria University showed that smokers lost more of their memory when compared to non-smokers.
And the research also found that those who kicked the habit saw their ability to recollect information restored to almost the same level as non-smokers.
The study involved more than seventy 18-to-25-year-olds and included a tour of the university’s campus. Those who took part were asked to recall small details, such as a list of songs played at a campus concert and tasks completed at various points－known as real world memory test. Smokers performed badly, remembering just 59 percent of tasks. But those who had given up smoking remembered 74 percent and those who had never smoked recalled 81 percent of tasks.
Dr. Tom Heffernan, who leads Northumbria University’s Collaboration for Drug and Alcohol Research Group, said the findings would be useful in anti-smoking campaigns. He said, “Given that there are up to 10 million smokers in the UK and as many as 45 million in the United States, it's important to understand the effects smoking has on everyday cognitive（認(rèn)知的）function-of which prospective memory is an excellent example. ”
“This is the first time that a study has set out to examine whether giving up smoking has an impact on memory. We already know that giving up smoking has huge health benefits for the body, but this study also shows how stopping smoking can have knock-on benefits for cognitive functions too. ’’
The research will now investigate the effects of passive smoking on memory, while Dr. Heffernan and Dr. Terence O’Neil will look into the effects of third-hand smoking－toxins left on curtains and furniture.
小題1:What’s the main idea of the passage?
A．Smoking does harm to health.
B．Smokers take a tour to the University’s campus.
C．Smoking can affect one’s memory.
D．Smokers are compared to non-smokers.
小題2:How did those who took part in the study perform when asked to recall small details?
A．Smokers did the worst among the participants.
B．Non-smokers could recall about half of them.
C．Smokers could recall nothing at all.
D．Those who gave up smoking did best.
小題3:According to Dr. Tom Heffernan, the findings_______.
A．would be really a surprise to the public
B．would contribute to fighting against smoking
C．would be used in real world memory test
D．would be nothing new to the researchers
小題4:What does the underlined word “impact’’ most probably mean?
A．orderB．impressionC．expression D．effect
小題5:What will Dr. Heffernan and Dr Terence O’Neil do?
A．Investigate the effects of third-hand smoking.
B．Do research on how smoking affects passive smokers.
C．Find ways to persuade people to quit smoking.
D．Study whether giving up smoking affects memory.

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