Air pollution is a leading cause of cancer and classified among Group 1,or top, human carcinogens (致癌物质), said the International Agency for Research on Cancer (IARC), which is the World Health Organization's (WHO) cancer agency, on Oct 17,2013.
The most widely used system for classifying carcinogens comes from the IARC, which places them into five groups. Group 1 carcinogens definitely cause cancer in humans. Group 2A is probably carcinogenic to humans, Group 2B is possibly carcinogenic, the carcinogenicity of Group 3 in humans is unclassifiable, and Group 4 is probably not carcinogenic to humans. Only a little more than 100 are classified as Group 1 cancer-causing substances, including ultraviolet radiation and tobacco smoke.
“Our task was to evaluate the air everyone breathes rather than focus on specific air pollutants,” the lARC's Dana Loomis said in a statement. “The results from the reviewed studies point in the same direction: the risk of developing lung cancer is significantly increased in people exposed to air pollution.”
In 2010, lung cancer resulting from air pollution killed 223,000 people worldwide, and there was also convincing evidence that it increases the risk of bladder (膀腕) cancer, according to the IARC.
Air pollution is already known to raise risks for a wide range of illnesses, including respiratory and heart diseases.
Air pollution is global, although the levels of it vary over space and time.
Loomis said people in Asia, eastern North America, some places in Central America and Mexico, as well as North Africa have relatively high exposure. Developing countries with large populations and booming manufacturing sectors, such as China, are particularly at risk.
Many cities in China, such as Beijing, frequently see smog. This week, Harbin, the capital city of Heilongjiang province, became the first Chinese city to officially suspend classes due to serious smog
Many developed countries face similar problems, although to a lesser degree than most developing nations. In Europe, levels of many pollutants have fallen. But between 91 and 96 percent of Europeans living in cities are exposed to levels of PM2.5—tiny particles with a diameter of less than 2.5 micrometers—that are higher than the WHO safety limits, says a report published by the European Environment Agency on Oct 15.
Although both the composition and levels of air pollution can vary dramatically from one location to the other, the 1ARC said its conclusions apply to all regions of the world.
“Given the scale of the exposure affecting people worldwide, this report should send a strong signal to the international community to take action without further delay,” said Christopher Wild, director of the IARC.
【小题1】What might be the best title of the passage?
| A．Signals of air pollution |
| B．Safety limits of air pollution |
| C．Air pollution, cancer risk |
| D．Air pollution, smog risk |
| A．To focus on cancer-causing substances. |
| B．To evaluate the air quality. |
| C．To study the developing risk of cancer. |
| D．To send signals to the international community. |
| A．The composition and levels of air pollution vary from place to place. |
| B．More and more people in developing countries are exposed to air pollution. |
| C．Developed countries face air pollution, the level of which is higher than the safety limits. |
| D．A large number of people worldwide are exposed to air pollution. |
【小题1】C
【小题2】B
【小题3】D
解析试题分析：这篇文章讲的是空气污染会造成癌症的危险，评估空气质量的IARC的数据表明，全世界的人们不同程度的受到空气污染影响，呼吁国际社会应该立刻采取行动。
【小题1】标题确定题：从文章的内容和第一段的句子;：Air pollution is a leading cause of cancer and classified among Group 1,or top, human carcinogens可知这篇文章讲的是空气污染会造成癌症的危险，选C
【小题2】细节题：从文章第三段的句子：“Our task was to evaluate the air everyone breathes rather than focus on specific air pollutants,”可知IARC的主要目的是评估空气质量，选B
【小题3】细节题：从文章最后一段的句子：“Given the scale of the exposure affecting people worldwide, this report should send a strong signal to the international community to take action without further delay,”可知国际社会应该立刻采取行动，因为全世界很多人暴露于空气污染。选D
考点：考查健康环保类短文
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口算与应用题卡系列答案科目：高中英语 来源： 题型：阅读理解
D
| Awardwinning author Emma Donoghue's latest book, Room, is a unique and amazing story about a boy's experience living in a small，windowless room with his mother. The 11' x 11' space between the walls of the room is actually all the boy knows because he was born there and has never left. Room will horrify ，surprise, sadden, and finally delight you. Attracted from the start, readers of all sorts won't want to put Room down. ◆First published in the U. S. in September 2010 ◆Publisher: Little Brown ◆321 Pages |  |
| Literary master Ian McEwan returns with Solar, a novel about a Nobel prizewinning physicist. The physicist's personal life is in a mess as his fifth marriage breaks，but this time he actually loves his wife and wants to make things better. Solar is a funny story, completely unusual and as good as anything the writer has ever written. ◆Published in March 2010 ◆Publisher: Knopf Doubleday ◆304 Pages |  |
| One Day by David Nicholls was an international bestseller before it was released in the U. S. in June. Although it is well written and funny at times, don't be fooled—this isn't a goodfeeling romantic comedy. If you decide to read it, be prepared for some heavy moments. ◆Published in the U．S. in June 2010 ◆Publisher: Vintage Contemporaries ◆437 Pages |  |
| Fall of Giants by Ken Follett is the first book in a new trilogy (three books)that will take readers through the major events of the twentieth century by following five families. In Fall of Giants, most of the action centers on World War I and the Bolshevik Revolution. Although Fall of Giants is more than 1,000 pages and has many characters，the story is remarkably connected. ◆Published in September 2010 ◆Publisher: Dutton ◆1,008 Pages |  |
| A．Ian McEwan once won the Nobel Prize. |
| B．Fall of Giants is mostly set in wars. |
| C．One day is written by David Nicholls. |
| D．Solar is a funny story about a physicist. |
| A．the main character of Room has a wide range of knowledge |
| B．Solar is the only book that Ian McEwan has ever written |
| C．all the four books were not published in the same month |
| D．One Day is a funny romantic comedy that sells very well |
| A．the sixth of Ian McEwan's marriages broke |
| B．Room by Emma Donoghue has a happy ending |
| C．the publisher of One Day is Little Brown |
| D．Dutton and Ken Follett are both publishers |
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科目：高中英语 来源： 题型：阅读理解
55% of deaths caused by road accidents occur in the first few minutes after a crash. Up to 85% of these deaths could be prevented if first aid were given. The first person on the scene of a road accident will almost certainly be another road user. So as a driver your knowledge of first aid could make a real difference to someone in the event of a road accident.
Assess conditions
·Remain calm. Judge the scene and seriousness of the collision.
·Determine what has happened, how many people and vehicles are involved and the exact location.
·Determine how many casualties(伤亡人数) there are, what is the severity of the injuries, whether anyone is trapped, and whether there is a danger of fire.
Make safe
·Make sure you stay safe and keep off the road. If you need to stop or warn approaching cars, signal to them from the pavement. Wear reflective clothing, use warning triangles, flashing lights and warning lights. Don’t smoke.
·If you are in a car and you come across an accident, first park safely and turn off the engine before you get out to help. Use a triangle warning danger if necessary.
·Consider the safety of others. Don’t move the vehicles, look out for dangers — leaking fuel, chemicals, broken glass or dropping loads — guide uninjured passengers to a place of safety.
Call for help
Dial 999 (or 112) for the emergency services. If there is no phone nearby, send two people in opposite directions to seek help.
Do this as soon as you can or get someone else to do it while you deal with an injured person. You will need to tell the emergency services:
·where you are
·what has happened (describe the accident)
·how many people are injured
·whether they are breathing or bleeding.
The operator will talk you through what to do while you wait for an ambulance to arrive.
Apply emergency first aid
·Remain calm. Reassure the victims.
·Do not allow smoking or offer food or drink to casualties as this could hamper urgent medical treatment.
【小题1】The passage mainly tells us ______.
| A．how to reduce road accident deaths |
| B．how to perform first aid in a road accident |
| C．how to treat the injured people on the scene |
| D．how to protect us from being injured in an accident |
| A．Stand in the middle of the road to stop or warn approaching cars. |
| B．Leave the engine working when he gets out of his car to help. |
| C．Call 999 for an ambulance to come and leave the scene immediately. |
| D．Make sure the scene is safe enough and stay away from dangerous gas leaking. |
| A．Affect. | B．Improve. | C．Demand. | D．Judge. |
| A．business and finance | B．sports and entertainment |
| C．travel and traffic | D．customs and cultures |
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科目：高中英语 来源： 题型：阅读理解
Losing weight comes with a lot of health benefits—including making your brain sharper.
Yes, it turns out that overweight may damage cognitive functions (认知功能) such as memory and attention. There have been few studies of overweight and cognitive functioning, possibly because it is generally believed that it is not a primary risk cause for poor cognitive performance. Losing weight, therefore, may help improve these mental functions, according to a new research led by John Gunstad, assistant professor of psychology at Kent State University.
Growing evidence suggests that being fat is linked to cognitive deficits (缺陷). So Gunstad and his team guessed that losing weight might improve mental function. For their study, they measured memory and attention in a group of 150 overweight participants, some of whom had some kind of operation for weight loss and some did not. All of the volunteers completed mental skills tests to assess their abilities of memory and attention at the beginning of the study, and again 12 weeks later. To begin with, about 24% of the patients showed damaged learning and 23% showed signs of poor memory when tested. At the end of the study, those who had lost weight after operation improved their scores into the average or above average range for cognitive functions. Scores for the volunteers who didn’t lose weight dropped even further.
The study helped Gunstad to find out whether losing weight had any effect on mental function. Now that he’s seen the positive effect that weight loss can have on memory and attention, he says he will next study those who choose to lose weight by the traditional way—eating healthier and getting more active. He expects that losing weight in this way will have a similarly positive effect on the brain. “If we can improve the condition with operations, then we can probably produce the same change with behavioral weight loss as well,” he says.
【小题1】There is less research on overweight and cognitive functions because researchers _____.
| A．believe overweight only affects our body |
| B．have focused on ways to sharpen people’s mind |
| C．do not consider overweight a main cause for low cognitive ability |
| D．are clear about the relation between weight and mental functions |
| A．losing weight has little effect on people’s memory |
| B．losing weight can improve people’s mental functions |
| C．overweight people are likely to have psychology problems |
| D．overweight people’s abilities of concentration differ greatly |
| A．Slim people are smarter than overweight people. |
| B．Healthy diet is better than exercise in losing weight. |
| C．Traditional ways of losing weight are better than operation. |
| D．Overweight people will get smarter by taking more exercise. |
| A．Body Weight and Health |
| B．Losing Weight by Operation |
| C．Ways to Improve Mental Functions |
| D．Losing Weight to S harpen Your MindD |
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科目：高中英语 来源： 题型：阅读理解
Elderly adults who regularly drink green tea may stay more agile (敏捷的) and independent than their peers over time, according to a Japanese study that covered thousands of people.
Green tea contains antioxidant chemicals (抗氧化化学物质) that may help stop the cell damage that can lead to disease.Researchers have been studying green tea’s effect on everything from cholesterol (胆固醇) to the risk of certain cancers，with mixed results so far.
They found those who drank the most green tea were the least likely to develop “functional disability”，or problems with daily activities or basic needs，such as dressing or bathing.
Specifically，almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled，compared with just over 7 percent of people who drank at least five cups a day.
The study did not prove that green tea alone kept people agile as they grew older.Green tea lovers generally had healthier diets，including more fish，vegetables and fruit，as well as more education，lower smoking rates，fewer heart attacks and strokes，and greater mental sharpness.They also tended to be more socially active and have more friends and family to rely on.But even with those factors accounted for，green tea itself was tied to a tower disability risk，the researchers said.
People who drank at least five cups a day were onethird less likely to develop disabilities than those who had less than a cup per day.Those people who averaged three or four cups a day had a 25 percent lower risk.
Although it’s not clear how green tea might offer a buffer (缓冲) against disabilities，lead researcher Yasutake Tomata did note that one recent study found green tea extracts (提取物) seem to increase leg muscle strength in older women.
While green tea and its extracts are considered safe in small amounts，they do contain caffeine and small amounts of vitamin K，which means it could affect drugs that prevent blood clotting (凝固)．
【小题1】What does the underlined word “peers” mean in the first paragraph?
| A．Fathers. |
| B．Brothers. |
| C．People of the same age. |
| D．People living in the same neighborhood. |
| A．Antioxidant chemicals can lead to disease. |
| B．Those who often drink green tea can’t develop “functional disability”． |
| C．“Functional disability” is related to problems with daily activities or basic needs. |
| D．People who drink at least five cups a day are not likely to become functionally disabled. |
| A．How the study was proved. |
| B．Why green tea lovers can keep agile. |
| C．What healthier diets include. |
| D．How to lower the disability risk. |
| A．Those who drank green tea can’t develop “functional disability”． |
| B．Green tea alone kept people agile as they grew older. |
| C．How green tea might offer a buffer against disabilities. |
| D．Green tea extracts seem to increase leg muscle strength in older women. |
| A．vitamin K is contained in caffeine |
| B．vitamin K is good for our blood |
| C．vitamin K is bad for our health |
| D．vitamin K has influence on some drugs |
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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 recent study suggests that teens’ relationship with parents, friends and teachers may have a lot to do with why they don’t get a good night’s sleep.
David Maume, a sociologist and sleep researcher, analyzed federal health data, which interviewed 974 teenagers when they were 12, and then again at 15. He found that family dynamics (动态) have much to do with how well kids sleep. Teens, who had warm relations with their parents and felt like they could talk to them or their parents were supportive of them, tended to sleep better. However, families that were going through a divorce or a remarriage tended to affect teens’ sleep.
And problems at school also affected teens’ sleep. Feeling safe at school and having good relations with teachers tended to promote better sleep. As did good relationships with friends. Kids who took part in sports or other positive social activities or shared similar academic goals with their friends were also more likely to get a good night’s sleep.
These add up to what makes lots of sense: a general feeling of well-being helps teens sleep. If we’re happy and contented, we’re much more likely to sleep better than if we’re sad and anxious.
Now, of course, teens can hardly resist being drawn to their computers and social networking. Maume also found that when parents were strict not only about bedtime, but also about limiting technology, kids slept better. It’s a finding that seems obvious, but parents really do matter when it comes to health habits of their teenagers.
Clearly, teenagers aren’t getting 9 to 10 hours a night, which puts them at risk for all the consequences of lack of sleep, including poor academic performance, colds and stress.
【小题1】What is the passage mainly about?
| A．Teens’ sleep is linked to their relationship with people around them. |
| B．Lack of adequate sleep puts teens at risk of many bad consequences. |
| C．Modern technology has something to do with teens’ sleep problems. |
| D．It is necessary for teens to join in sports and positive social activities. |
| A．Teens who feel like talking with their parents. |
| B．Teens who have friends sharing their dreams. |
| C．Teens who feel contented about themselves. |
| D．Teens who lack a sense of security at school. |
| A．a comparison | B．an introduction | C．a conclusion | D．an addition |
| A．continue their broken marriage | B．allow children to decide when to sleep |
| C．limit teens’ using new technology | D．force teens to have 10 hours’ sleep daily |
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科目：高中英语 来源： 题型：阅读理解
October 15th is Global Handwashing Day．Activities are planned in more than twenty countries to get millions of people in the developing world to wash their hands with soap．
Experts say people around the world wash their hands but very few use soap at so-called critical moments．These include after using the toilet, after cleaning a baby and before touching food．
Global Handwashing Day is the idea of the Public-private Partnership for handwashing with soap．The goal, they say, is to create a culture of handwashing with soap．The organizers say all soaps are equally effective at removing disease-causing germs．They say the correct way to wash is to wet your hands with a small amount of water and cover them with soap．Rub it into all areas, including under the fingernails．Then, wash well under running water．Finally, dry your hands with a clean cloth．
The Partnership says soap is important because it increases the time that people spend washing．Soap also helps to break up the dirt that holds most of the germs．And it usually leaves a pleasant smell, which increases the chances that people will wash again．
It also says that washing hands with soap before eating and after using the toilet could save more lives than any medicine．It could help reduce cases of diarrhea, which is the second leading cause of child deaths, killing more than one and a half million children a year, by almost half．
【小题1】What does the author intend to tell us in the passage?
| A．To keep healthy by washing hands． | B．To wash hands with soap． |
| C．To take action to wash hands． | D．To wash hands often． |
| A．a--c--b--e--d | B．e--d--a--b—c |
| C．a--c--b--d--e | D．e--b--d--a--c |
| A．It gives people a longer handwashing time． |
| B．It helps to remove a lot of germs from hands． |
| C．It attracts people to do more handwashing． |
| D．It gets all people into the habit of washing hands． |
| A．kills half of the kids in the developing countries a year |
| B．causes the greatest number of child deaths |
| C．can be prevented to some degree by washing hands with soap |
| D．can’t be cured without washing hands |
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科目：高中英语 来源： 题型：阅读理解
Studies show that children who eat breakfast do better in school. It doesn’t take much further thought to know that adults will feel better and do better at work as well. Whether you work at home, on the farm, at the office, at school, or on the road, it is not a good idea to have no breakfast.
If we have no breakfast, we are likely to become tired when our brains and bodies run low on fuel (食物). By mid-morning, a lot of us grab a cup of coffee or eat a sugary candy bar to wake up again. This might work for a few minutes, but by lunch time we are hungry. Eating a good breakfast sets the tone for the rest of the day.
Having no breakfast is a popular way to lose weight, but not a smart one. Many people believe that they will lose weight if they have no meals, but that just isn’t true; the body expects to be refueled a few times a day, starting with a healthy breakfast. Eating breakfast is good for losing weight. In fact, people who eat breakfast are more likely to keep a healthy weight.
A healthy breakfast should have some protein (蛋白质) and some fiber (纤维). Protein can come from low fat meats, eggs, or beans. Fiber can be found in whole grains, vegetables and fruits. A good example of a healthy breakfast might be something simple like a hard boiled egg, an orange, and a bowl of whole grain cereal with low fat milk. Stay away from sugary foods and white bread because they are digested (消化) quickly and will leave you hungry and tired in several hours. Protein and fiber will keep you feeling full until lunch time.
【小题1】The first paragraph mainly tells us that ______.
| A．it is necessary to have a good breakfast every day |
| B．many adults are too busy to have breakfast every day |
| C．many adults go to work without having breakfast |
| D．many children go to school without breakfast |
| A．we need to have a cup of coffee | B．we don’t have a good breakfast |
| C．our brains don’t work any longer | D．we don’t have enough sleep at night |
| A．Having a good breakfast can help you to finish your work. |
| B．Eating a good breakfast is enough for the whole day. |
| C．Breakfast is really the most important meal in a day. |
| D．You will be happier if you have a good breakfast. |
| A．it is healthy only to have beans and eggs for your breakfast |
| B．you mustn’t have meat for your breakfast |
| C．you should eat sugary foods if you feel hungry |
| D．you should eat something which has protein and fiber for breakfast |
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