题目
题型：不详难度：来源：
Temporary（暂时） hearing loss can happen after only 15 minutes of listening to loud music. One early warning sign is when your ears begin to feel warm while you listen to music at a rock concert or through headphones. One later is that an unusual sound or a ringing is sometimes produced in your head after the concert.
"What happens is that the hair cells in the inner ear are damaged, but they"re not dead," says physician and ear specialist Dr. Sam Levine. According to Dr. Levine, if you avoid further exposure to loud noise, it"s possible to recondition the cells（细胞） somewhat. However, he adds, "Eventually, over a long period of time, hair cells are permanently damaged." And this is no small problem.
What sound level is dangerous? According to Dr. Levine, regular exposure to noise above 85 decibels (分贝) is considered dangerous. The chart below offers a comparison of decibel levels to certain sounds. Here"s another measurement you can use. If you"re at a rock concert and the music is so loud that you have to shout to make yourself heard, you" re at risk for hearing loss. That"s when wearing protective devices such as earplugs becomes critical.
The facts are pretty frightening. But are rock bands turning down the volume."? Most aren"t. "Rock music is supposed to be loud," says drummer Andrew Sather."I wouldn"t have it any other way. And neither would the real fans of rock. "
Continued exposure to loud music and the failure to wear earplugs can lead to deafness, according to Dr. Levine. He states, "There"s no cure for hearing loss. Your ears are trying to tell you something. That ringing is the scream of your hair cells dying. Each time that happens, more and more damage is done. "
| Levels of Common Noises Normal conversation 50 — 65 dB Food blender 88 dB Jet plane flying above a person standing outside 103 dB Rock band during a concert 110 — 140 dB |
| A．loud music is a major cause of hearing loss |
| B．famous people may have hearing problems |
| C．teenagers should stay away from school bands |
| D．the problem of hearing damage is widely known |
| A．not to be seen | B．to fill with sound |
| C．to become larger in size | D．to make good again |
| A．a list of harmful sounds |
| B．the effect of rock concerts |
| C．the noise levels of sounds |
| D．relationship between daily activities and hearing loss |
| A．When your ears feel warm, your hair cells are dead. |
| B．Drummer Andrew Sather gives good advice. |
| C．Many are at the risk of losing hearing. |
| D．Doctors know how to deal with hearing loss. |
答案
小题1:A
小题2:D
小题3:B
小题4:C
解析
试题分析：文章介绍嘈杂的音乐是听力丧失的主要原因，如果及时避免，听力会修复，但是如果继续使用，就会导致完全的失聪。
小题1:细节题：从第一段的句子：Both men have hearing damage from exposure to loud music, and both now wear hearing aids as a consequence.可知嘈杂的音乐是听力丧失的主要原因，选A
小题2:猜词题：从第三段的句子：if you avoid further exposure to loud noise, it"s possible to recondition the cells somewhat.可知如果你避免进一步暴露于嘈杂的音乐，这些毛发细胞会变好的，选D
小题3:推理题：从第四段的话：regular exposure to noise above 85 decibels (分贝) is considered dangerous.和表格里面的比较数字：Rock band during a concert110 — 140 dB可知最后的表格是为了表明摇滚音乐会的影响，选B
小题4:细节题：从文章最后一段的句子：Continued exposure to loud music and the failure to wear earplugs can lead to deafness,可知Dr. Sam Levine可能会同意很多人有失去听力的危险，选 C
核心考点
试题【What do former American president Bill Clinton and rock musician Pete Townshend 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
You know those ads that remind us that even a small drop in hydration（水合作用） levels can massively affect performance so you need to keep hydrated with whatever brand of super drink they"re selling?
They seem pretty scientific don"t they? Man in white coat, athlete with electrodes attached and so on. And it"s not a hard sell because drinking feels right - you"re hot and sweating so surely replacing that fluid must be beneficial.
Well earlier this year sports scientists in Australia did an extraordinary experiment that had never been done before.This group wanted to find out what happened to performance after dehydration. So they took a group of cyclists and exercised them until they lost 3% of their total body weight in sweat.
Then their performance was assessed after rehydration with either 1) nothing, 2) enough water to bring them back to 2% dehydration or 3) after full rehydration.
So far nothing unusual, but the difference between this and almost every other study that"s ever been done on hydration was that the cyclists were blind to how much water they got. The fluid was given intravenously without them knowing the volume.
This is vital because we all, and especially athletes, have such an intimate(密切的)psychological relationship with water consumption.
Remarkably, there was no performance difference between those that were fully rehydrated and those that got nothing. This study was part of a growing movement to "drink to thirst" which hopes to persuade athletes not to over hydrate with the potentially fatal consequence of diluting your sodium level, causing hyponatraemia.
Perhaps the result shouldn"t be so surprising. Humans evolved doing intense exercise in extreme heat and dryness. We are able to tolerate losses in water relatively well whereas even slight over hydration can be far more dangerous. In simple terms, being too watery is as bad for you as being too concentrated.
小题1:What’s the main idea of the passage?
| A．There is no scientific basis for drinking eight cups of water a day |
| B．People used to drink eight cups of water a day |
| C．An experiment about whether people should drink eight cups of water. |
| D．People shouldn’t believe longstanding advice. |
| A．doing exercise | B．losing water |
| C．drinking water | D．having a rest |
| A．Drinking too much water is bad for us |
| B．Sports scientists in Australia did an extraordinary experiment for the first time. |
| C．Those that were fully rehydrated and those that got nothing performed differently. |
| D．The cyclists didn’t know how much water they got. |
| A．Humans can bear losing water relatively well |
| B．It’s dangerous to drink water. |
| C．Athletes should drink more water than others. |
| D．This study was part of a growing movement to "drink to thirst". |
| A．positive | B．doubtful | C．supportive | D．indifferent |
Researchers at Johns Hopkins University in Maryland wanted to learn how long memory and thinking skills would last in older people who trained to keep them. The people were part of the ten-year research project. They were taught methods meant to improve their memory, thinking and ability to perform everyday tasks.
More than 2,800 volunteered for the study called ACTIVE - short for Advanced (Cognitive) Training for Independent and Vital Elderly. Most studied when they were more than 70 years old.
The volunteers took one of several short training classes meant to help them keep their mental abilities. One class trained participants in skills including how to remember word lists. Another group trained in reasoning. A third group received help with speed-of-processing - speed of receiving and understanding information. A fourth group - the control group did not get any training.
Earlier results had established that the training helped the participants for up to five years. Now, lead study writer George Rebok says, the research showed most of the training remained effective a full ten years later.
Professor Rebok and his team found that the people trained in reasoning and speed-of-processing did better on tests than the control group.
"We are wondering whether those effects which endured over time would still be there ten years following the training, and in fact, that"s exactly what we found."
The effect on memory, however, seemed not to last as long. Still, the old people in any of the three classes generally reported less difficulty in performing daily activities than the control group. The total training time for the older people was between 10 and 15 hours.
小题1:Which statement is true according to the text？
| A．This kind of training can only have effect on people for a few years。 |
| B．The people were trained during a period of ten years. |
| C．All the people who were studied were more than 70 years old. |
| D．The second group were trained how to remember word lists. |
| A．There were four groups being trained. |
| B．The old people trained can remember words better. |
| C．The second and third group improved their skills better than the first one. |
| D．The research showed that the effect of the training could absolutely last 10 years. |
| A．What was the meaning of the research? |
| B．How was the research conducted? |
| C．Why was the mental training effective? |
| D．How long did the research last? |
| A．Mental Training Helped Elderly Stay Sharp for Years |
| B．How to improve our mental health |
| C．Four groups of old people were trained mentally. |
| D． The result of a ten-year research |
When I took the first exam, I was to find a 77, C-plus, on my test paper, English was my best subject. I went to Professor Jayne, who listened to my arguments but remained . I decided to try harder, although I didn’t know what that because school had always been easy for me. I read the books more carefully, but got another 77. Again, I with Professor Jayne. Again, he listened patiently but wouldn’t change his . One more test before the final exam. One more to improve my grade. So I redoubled my efforts and, for the first time, the meaning of the word “thorough”. But my did no good and everything as before.
The last hurdle(障碍) was the final. No matter what I got, it wouldn’t cancel three C-pluses. I might as well kiss the goodbye. I stopped working hard. I felt I knew the course material as well as I ever would. The night before the final, I even myself to a movie. The next day I decided for once I’d have with a test. A week later, I was surprised to find I got an A. I hurried into professor Jayne’s office. He to be expecting me. “If I gave you the As you , you wouldn’t continue to work as hard.” I stared at him, that his analysis and strategy(策略) were correct. I had worked my head , as I had never done before. I was speechless when my course grade arrived: A-plus. It was the only A-plus given. The next year I received my scholarship. I’ve always remembered Professor Jayne’s lesson: you alone must set your own standard of excellence.
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Jetting off to destinations such as the Maldives cuts your blood pressure, helps you sleep better and bounce back from stress, it found．The benefits last at least a fortnight longer than the vacation and can be felt for months in some cases where it is claimed．Experts say workers should always take their full holiday entitlement（权利）each year, but as many as one in three don’t．
The study compared key health markers in holidaymakers visiting Thailand, Peru or the Maldives, with people who stayed at home and continued working．The average blood pressure of those on holiday dropped by six percent while the workers saw their blood pressure rise by two percent over the same period．The sleep quality of holidaymakers improved by 17 percent while that of the non-holidaymakers deteriorated by 14 percent．
The study also found the ability of vacationers to recover from stress, known as the stress-resilience test improved by 29 percent．There was a 71 percent fall in stress resilience scores among workers．Tests showed a fall in blood glucose levels, reducing the risk of diabetes （糖尿病）, trimmer waistlines and improved mood and energy levels, with the effects sustained for at least two weeks after returning home．
The Holiday Health Experiment was conducted by tour operator Kuoni and Nuffield Health, the UK’s largest healthcare charity．
小题1:According to the passage, how many people go on holiday?
| A．Two thirds． | B．One third． |
| C．17 percent． | D．A quarter． |
| A．The further you go, the better you get the benefits． |
| B．Most people like to stay at home during the holiday． |
| C．The result of the study is mostly based on the description from the people involved． |
| D．Holiday makers are more adaptable than non-holidaymakers． |
| A．we have to go on holiday as much as possible |
| B．you’ll certainly get depressed if you don’t go on holiday |
| C．we had better go on holiday for the benefits of health |
| D．it is best to go to foreign countries like Maldives |
| A．A Holiday Health Experiment |
| B．Health Benefits from Holiday |
| C．Health Problems of Having Holiday |
| D．Key Health Markers in Holidaymakers |
The answer is simple: the benefits of eating fast food outweigh the long-term implications for most people. However, once you read these reasons why all those trips to the drive through may be slowly killing you, you may just want to stop eating fast food after all.
1. Fast food makes you fat.
A 15-year study of over 3,000 people found that eating fast food is linked to weight gain and insulin resistance. In others words, fast food makes you fat and increases your risk of type 2 diabetes. You probably know this already. But here’s something you may not know.
2. Fast food is addictive.
The more you eat fast food, the more you crave it. One study found that fast food is “a potentially addictive substance that is most likely to create dependence in vulnerable populations.” If you eat fast food once a week or more, you may be addicted to it.
3. Fast food is affecting your kids.
According to the CDC, childhood obesity has more than doubled in children and tripled in adolescents in the past 30 years. Kids have an amazing ability to recall ads they’ve seen. Fast food marketers know this, and design ads accordingly. Research shows strong associations between increases in advertising for non-nutritious foods and rates of childhood obesity.
4. Fast food “burgers” don’t have much burger in them.
One study found that most fast food burgers are composed of about 50 percent water and the actual meat content is only 2.1 to 14.8 percent. So what makes up the rest of it, you ask? Chemical fillers and preservatives, mostly. That’s why we see read horror stories about burgers that don’t go bad.
5. Even “healthy” fast food isn’t that healthy.
Fast food restaurants are catering to consumer demands to produce healthier options. The problem is, their definition of “healthy” is quite lax. One of the healthiest dishes at Burger King, the Garden Fresh Salad Chicken Caesar with TENDERGRILL Chicken and dressing, still has almost 500 calories and 28 grams of fat, and nearly a day’s worth of sodium.
6. Fast food is inhumane to animals.
Okay, this one may not be a reason why fast is killing you, but it’s still a compelling reason to stop eating fast food. 9 billion animals were slaughtered in the US alone in 2012 and much of that meat is for your fast food burgers and chicken sandwiches. Large factory farms resemble more of a “business” than a “farm.” Animals suffer in crowded spaces where they rarely have access to the outdoors or sunlight. They are pumped full of antibiotics to combat disease, which runs rampant in these conditions. Livestock is one of the biggest sources of pollution and environmental negligence, according to the UN.
7. Fast food sodas are loaded with sugar.
High fructose corn syrup (HFCS) is the cheap sweetener most fast food restaurants use in their sodas, desserts, and many other products. Princeton University researchers linked HFCS consumption to obesity in an animal study. Rats given HFCS gained more weight and body fat than those given table sugar.
小题1:How many factors are mentioned which can account for the reason why fast food is slowly killing you?
| A．Seven. | B．Three. | C．Four. | D．Five. |
| A．many people keep eating fast food because they know nothing about the harm which fast food will bring them |
| B．fast food plays a key role in children’s growth |
| C．eating fast food is connected to weight gain and insulin resistance. |
| D．many fast food restaurants are can offer a good and healthy meal to consumer |
| A．To help us make right decisions | B．To advise us to stop eating fast food |
| C．To tell us how to keep fit | D．To encourage us to be humane to animals |
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