Everyone may all have the experience of feeling anxious and stressed when having a rough day or having some troubles. Different people may choose different ways to deal with it, and for most people a break for a 10-minute walk may be quite useful.www.zxxk.com
Anyway, here is another way around: to get a piece of chewing gum, and chew it. According to a Swinburne University of Technology study, gum-chewing has been found to “relieve anxiety, improve alertness(机敏性) and reduce stress among individuals in a laboratory setting.”
Some may argue that a laboratory is not the same as an office. But check out the conditions of the study: individuals were monitored while performing “a group of ‘multi-tasking’ activities.” Doesn’t it sound like the situation in the office?www.zxxk.com
Here’s a summary of some of the study’s findings:
Gum chewers showed a reduction in anxiety as compared to non-gum chewers by nearly 17 percent during mild stress and nearly 10 percent in appropriate stress.
Gum chewers showed improvement in alertness over non-gum chewers by nearly 19 percent during mild stress and 8 percent in moderate stress.
Improved Performance: Chewing gum resulted in a big improvement in overall performance on multi-tasking activities.
Although these aren’t major improvements, every little bit works and chewing a piece of gum is a lot quicker and easier than slipping outside for a 10-minute walk. So, how does gum work this magic? In part it does so by lowering the level of cortisol(皮质醇)—a steroid(类固醇) hormone that is released in response to stress in your system.
A few words of advice before you reach for the gum: don’t crack your gum, and be sure to chew it with your mouth closed. In fact, I’d say keep the gum out of meetings, because it really looks impolite to others around you.
【小题1】From the study in the text we know that_________________.
| A．gum chewers may lack alertness |
| B．gum chewers tend to be less stressed |
| C．gum chewers can finish many jobs perfectly |
| D．gum chewers can reduce their anxiety and anger easily |
| A．It works by improving alertness. |
| B．It works by allowing a 10-minute walk. |
| C．It works by reducing one’s level of cortisol. |
| D．It works by being chewed in a laboratory setting. |
| A．People should chew gum with their mouths closed in a meeting. |
| B．It is impolite to chew gum in a meeting with people around you. |
| C．People can crack gum freely when meeting friends. |
| D．People should be careful when chewing gum at home. |
| A．How to chew gum. | B．How to relieve stress. |
| C．Why people love chewing gum. | D．Chewing gum can relieve stress. |
【小题1】B
【小题2】C
【小题3】B
【小题4】D
解析试题分析 本文是说明文。每个人都有感觉压力的时候，减压有很多方法，现在流行咀嚼口香糖，以及引发的一些问题。
【小题1】B 细节题。根据对全文的理解，口香糖可以用来减少压力。故选B项。
【小题2】C 细节题。根据倒数第二段So, how does gum work this magic? In part it does so by lowering the level of cortisol(皮质醇)—a steroid(类固醇) hormone that is released in response to stress in your system.得出应选 C项。
【小题3】B 细节题。根据最后一段don’t crack your gum, and be sure to chew it with your mouth closed. In fact, I’d say keep the gum out of meetings, because it really looks impolite to others around you.，应选 B项。用排除法来做此类的题。
【小题4】D 主旨大意。本文主要讲吃口香糖可以减轻压力，故选 D项。
科目：高中英语 来源： 题型：阅读理解
Electrical devices(仪器)could soon use power made by human energy. Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking , British scientist Max Donelan and other scientists in Canada and the United States developed the device.
The device connects to a person’s knee. As the person walks ,the device captures energy each time the person slows down. To do this ,the device helps with the slowing sown movement of the leg, the movements of the walking person push parts of a small machine that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.
There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. The device could also he used in hospitals to operate heart pacemakers(起博器), it could even be used to assist in the movement of robotic arms and legs.
The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy, but the researchers hope to make a lighter, less costly version, An improved version should be ready in one year.
The developers hope the device will one day help developing countries; nearly twenty five percent of people around the world live without electric power.
A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania, He created a bag carried on a person’s back that also produces power from walking. The knee device does not produce as much electricity as the bag, but the bag requires the walker to carry a load of twenty to thirty kilograms.
【小题1】. The second paragraph mainly talks about
| A．who developed the device | B．how the device works |
| C．several possible uses for the devices | D．how much electricity the device can produce |
| A．It is too heavy for the walker to bear | B．It is too complex for people to use |
| C．It is too expensive for most people to afford | D．It will slow down one’s walking speed |
| A．produces power without adding more loads to the walker |
| B．can produce more power in a much shorter time |
| C．needs to be equipped with a battery |
| D．can help the walker walk faster |
| A．help housewives operate the washing machine |
| B．make it much easier for us to go online |
| C．produce more electricity than that invented by Larry Rome |
| D．be applied in medical fields to operate heart pacemakers |
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科目：高中英语 来源： 题型：阅读理解
One reaction to all the concern about tropical deforestation（毁林） is a blank stare that asks the question, "Since I don't live there, what does it have to do with me?"
The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wash your hair, eat fruits and vegetables, drink soda, or drive a car, you can be certain that you are affected by the loss of tropical forests.
Biologically, we are losing the richest regions on earth when, each minute, a piece of tropical forest, the size of ten city blocks, disappears. As many as five million species of plants, animals, and insects (40 to 50 percent of all living things) live there, and are being lost faster than they can be found and described. Their loss is immeasurable.
Take rubber for example. For many uses, only natural rubber from trees will do. Synthetics are not good enough. Today over half the world's commercial rubber is produced in Malaysia and Indonesia, while the Amazon's rubber industry produces much of the world's four million tons. And rubber is an important material in making gloves, balloons, footwear and many sporting goods. Thousands of other tropical plants are valuable for their industrial use.
Many scientists strongly believe that deforestation contributes to the greenhouse effect -- or heating of the earth from increased carbon dioxide in the atmosphere. As we destroy forests, we lose their ability to change carbon dioxide into oxygen.
Carbon dioxide levels could double within the next half-century, warming the earth by as much as 4.5 degrees. The result? A partial melt-down of polar ice caps, raising sea levels as much as 24 feet; even 15 feet could threaten anyone living within 35 miles of the coast. Unbelievable? Maybe. But scientists warn that by the time we realise the severe effects of tropical deforestation, it will be 20 years too late.
Can tropical deforestation affect our everyday lives? Now, you should have got the answer.
【小题1】The underlined word "synthetics" probably means_________.
| A．natural rubber | B．tropical materials |
| C．man-made material | D．commercial rubber |
| A．The forests are losing their function in turning carbon dioxide into oxygen. |
| B．Many of our daily uses are related to the tropical forests. |
| C．Tropical plants can be used to make industrial products. |
| D．High carbon dioxide levels will make the earth warmer. |
| A．puzzling | B．cold | C．supporting | D．opposed |
| A．Tropical Forests | B．The Value of Tropical Forests |
| C．Tropical Forests and Our Life | D．The Greenhouse Effects |
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科目：高中英语 来源： 题型：阅读理解
Mark and his brother Jason both were looking at the shining new computer enviously, Jason was determined not to go against their father’s wishes but Mark was more adventurous than his brother. He loved experimenting and his aim was to become a scientist like his father.
“Dad will be really mad if he finds out you’ve been playing with his new computer.” Jason said, “He told us not to touch it.”
“He won’t find out,” Mark said. “I’ll just have a quick look and shut it down.”
Mark had been scolded before for touching his father’s equipment. But his curiosity was difficult to control and this new computer really puzzled him.
It was a strange-looking machine — one his dad had brought home from the laboratory where he worked. “It’s an experimental model,” his father had explained, “so don’t touch it under any circumstances.” But his father’s warning only served to make Mark more curious. Without any further thought, Mark turned on the power switch. The computer burst into life and seconds later, the screen turned into colors, shifting and changing and then two big white words appeared in the centre of the screen: “SPACE TRANSPORTER.” “Yes!” Mark cried excitedly, “It’s a computer game. I knew it! Dad’s only been pretending to work. He’s really been playing games instead.” A new message appeared on the screen: “ENTER NAMES
VOYAGER 1:…
VOYAGER 2:…”
Mark’s fingers flew across the keyboard as he typed in both of their names.
“INPUT ACCEPTED. START TRANSPORT PROGRAM. AUTO-RETRIEVE INITIATED (自动回收程序已启动).”
The screen turned even brighter and a noise suddenly rose in volume.
“I think we’d better shut it off, Mark,” Jason yelled, reaching for the power switch. He was really frightened.
But his hand never reached the switch. A single beam of dazzling white light burst out of the computer screen, wrapping the boys in its glow(光芒) , until they themselves seemed to be glowing. Then it died down just as suddenly as it had burst into life. And the boys were no longer there. On the screen, the letters changed.
“TRANSPORT SUCCESSFUL. DESTINATION (目的地)：MARS. RETRIEVE DATE: 2025.”
【小题1】Why did Mark touch the computer against his father’s warning?
| A．He wanted to take a voyage. | B．He wanted to practice his skill. |
| C．He was so much attracted by it. | D．He was eager to do an experiment. |
| A．In an electronic factory. |
| B．In a computer company. |
| C．In a scientific research center. |
| D．In an information processing center. |
| A．a computer game | B．a company website |
| C．a software producer | D．an astronomy |
| A．He was afraid of being scolded. |
| B．He didn’t like the loud noise and light. |
| C．He didn’t want to play games any more. |
| D．He was afraid something dangerous might happen. |
| A．Theywereblownintotheair. |
| B．Theyweresenttoanotherplanet. |
| C．Theywerehiddeninthestronglight. |
| D．Theywerecarriedawaytoanothercountry. |
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科目：高中英语 来源： 题型：阅读理解
New research shows sheep are clever
People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests found that the sheep can map the area they live in, and some may even be able to plan ahead.
Young fish prefer noisy neighbors
A new study has shown that young fish like to live on reefs with noisy neighbors! Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, complete with noisy animals! The scientists compared the choice to a music fan wandering around at a music festival, choosing to set up a tent closest to the music they like best!
Butterflies are disappearing
A new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.
【小题1】What is the passage mainly about?
| A．Some new studies about animals. |
| B．People’s wrong ideas about animals. |
| C．Why the number of animals has dropped. |
| D．The importance of protecting animals. |
| A．are less clever than rodents |
| B．can find their home |
| C．can read maps |
| D．are good planners |
| A．live in a noisy environment |
| B．live in areas close to their parents |
| C．choose the reefs which are quiet |
| D．choose other kinds of fish as neighbors |
| A．The species of grass in grasslands. |
| B．The species of trees in grasslands. |
| C．The number of flowers in grasslands. |
| D．The number of animals in grasslands. |
| A．Geography. | B．Culture. | C．Travel. | D．Nature |
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科目：高中英语 来源： 题型：阅读理解
It is not unusual for people to speak two or three languages; they’re known as bilinguals or trilinguals. Speakers of more than three languages are known as polyglots. And when we refer to people who speak many languages, perhaps a dozen or more, we use the term hyper-polyglot.
The most famous hyper-polyglot was Giuseppe Mezzofanti, a 19th century Italian cardinal, who was said to speak 72 languages. This claim sounds absurd. If you assume each language had 20,000 words, Mezzofanti would have to learn a word a minute, six hours a day, for eleven years—an impossible task. But Mezzofanti was tested by critics, and they were all impressed.
Did Mezzofanti have an extraordinary brain? Or are hyper-polyglots just ordinary people with ordinary brains who manage to do something extraordinary through hard work?
U.S. linguist Stephen Drashen believes that outstanding language learners just work harder at it and then they acquire unusually strong language ability. As an example, he mentions a Hungarian woman who worked as an interpreter during the 20th century. When she was 86, she could speak 16 languages and was still working on learning new languages. She said she learned them mostly on her own, reading fiction or working through dictionaries or textbooks.
Some researchers argue to the contrary. They believe that there is such a thing as a talent for learning languages. In the 1930s, a German scientist examined parts of the preserved brain of a hyper-polyglot named Emil Krebs, who could speak 60 languages fluently. The scientist found that the area of Krebs’s brain called Broca’s area, which is associated with language, looked different from the Broca’s area in the brains of men who speak only one language. However, we still don’t know if Krebs was born with a brain ready to learn dozens of languages or if his brain adapted to the demands he put on it.
Although it is still not clear whether the ability to learn many languages is in born, there’s no doubt that just about all of us can acquire skills in a second, third, or even fourth language by putting our mind to it.
【小题1】What does the underlined sentence imply?
| A．Mezzofanti could remember 360 words a day. |
| B．Mezzofanti had a special way to learn languages. |
| C．Mezzofanti’s achievement was ridiculous. |
| D．Mezzofanti language ability was astonishing. |
| A．good memory | B．unique brain | C．hard work | D．learning methods |
| A．had an unusual brain |
| B．was born with great talent |
| C．had worked hard at languages |
| D．expected too much of himself |
| A．it is not hard to learn foreign languages |
| B．hard work plays a part in language learning |
| C．there is no such thing as a talent for languages |
| D．hyper-polyglots have an inborn talent for language |
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科目：高中英语 来源： 题型：阅读理解
Everyone has heard of the San Andreas fault （断层）, which constantly threatens California and the West Coast with earthquakes. But how many people know about the equally serious New Madrid fault in Missouri?
Between December of 1811 and February of 1812, three major earthquakes occurred, all centered around the town of New Madrid, Missouri, on the Mississippi River. Property damage was severe. Buildings in the area were almost destroyed. Whole forests fell at once, and huge cracks opened in the ground, releasing some strong smell chemicals.
The Mississippi River itself completely changed character, developing sudden rapids and whirlpools (激流和漩涡). Several times it changed its course, and once, according to some observers, it actually appeared to run backwards. Few people were killed in the New Marid earthquakes, probably simply because few people lived in the area in 1811; but the severity of the earthquakes are shown by the fact that the shock waves rang bells in church towers in Charleston, South Carolina, on the coast. Buildings shook in New York City, and clocks were stopped in Washington, D.C.
Scientists now know that America's two major faults are essentially different. The San Andreas is a horizontal boundary between two major land masses that are slowly moving in opposite directions. California earthquakes result when the two masses make a sudden move.
The New Madrid fault, on the other hand, is a vertical fault; at some points, possibly hundreds of millions of years ago, rock was pushed up toward the surface, probably by volcanoes under the surface. Suddenly, the volcanoes cooled and the rock collapsed, leaving huge cracks. Even now, the rock continues to settle downwards, and sudden sinking motions cause earthquakes in the region. The fault itself, a large crack in this layer of rock, with dozens of other cracks that split off from it, extends from northeast Arkansas through Missouri and into southern Illinois.
Scientists who have studied the New Madrid fault say there have been numerous smaller quakes in the area since 1811; these smaller quakes indicate that larger ones are probably coming, but the scientists say they have no method of predicting when a large earthquake will occur.
【小题1】This passage is mainly about ___________.
| A．current scientific knowledge about faults |
| B．the San Andreas and the New Madrid faults |
| C．the causes of faults |
| D．the New Madrid fault in Missouri |
| A．a vertical fault |
| B．a horizontal fault |
| C．a more serious fault than the San Andreas fault |
| D．responsible for forming the Mississippi River |
| A．horizontal faults are more dangerous than vertical faults |
| B．Vertical faults are more dangerous than horizontal faults |
| C．The volcanoes that caused the New Madrid fault are still alive |
| D．A lot of people would die if the 1811 New Madrid earthquakes happened today |
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科目：高中英语 来源： 题型：阅读理解
It’s you and I who are to blame for the state of the earth. No question about it. It’s our life-style that is threatening life on Earth, so we must make the changes. The good news is that many of those changes are really quite simple, even enjoyable, but for every careful step we take as individuals, we must press government and industry to take a big step on our benefit. And we must start now. Tomorrow’s too late.
My aim this year is to persuade as many of my friends and colleagues as possible to choose the train, and leave their cars behind too. My gardens have been pesticide(杀虫剂)–free zones for years and I enjoy seeing more wildlife on my doorstep as a result; I’ve tried to reduce my contribution to water pollution too, by using environment-friendly, phosphate(磷)–free washing powder , and by no longer thinking of the toilet as a suitable waste-disposal(处理) point .
I ran after a young lady through town recently to give her back the piece of paper she had carelessly thrown away. She disappeared into a shop, and when I followed her inside and made my presentation, she was doubly embarrassed--she worked there, and the boss gave her a ticking–off too. I’ve started asking fellow drivers at gas stations why they aren’t using unleaded (无铅的) petrol . These are small things, but we have to start somewhere, and every little does help.
【小题1】We can learn from the first paragraph that____________.
| A．you and I are responsible for looking after the environment |
| B．the government and industry are responsible for looking after the environment |
| C．the government is responsible for looking after the environment |
| D．both A and B |
| A．taking the train instead of a car |
| B．avoiding the use of pesticides |
| C．throwing away the old cars |
| D．running after those who throw articles carelessly |
| A．to find out where she worked |
| B．to give her back the piece of paper she had lost |
| C．to ask her to pay him for picking up the piece of paper. |
| D．to tell her not to throw away pieces of paper carelessly |
| A．persuade his friends to take the train |
| B．try to advise us all to protect our environment |
| C．make clear who is responsible for the environment |
| D．inform us of the good news |
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科目：高中英语 来源： 题型：阅读理解
Scientists say they now have proof to support the old-fashioned advice that it's best to sleep on a problem. They say sleep strengthens the memory and helps the brain organize the masses of information we receive each day.
Lead researcher Bob Stickgold at the Harvard Medical School said, "Sleep helps us draw rules from our experiences. It's like knowing the difference between dogs and cats even if it's hard to explain."
The US research team studied how well students remembered connections between words and symbols (象征) , reports New Scientist. They compared how the students performed if they had had a sleep between seeing the words and having the test, and if they had not slept. They found that people were better able to remember lists of related words after a night's sleep than after the same time spent awake during the day. They also found it easier to remember themes (主题) that the words had in common. But they forgot around one in four more themes if they had been awake. Prof. John Groeger, of Surrey University's Sleep Research Centre, said, "People have been trying for years to find out what the purpose of sleep is, as we know that only certain parts of it have a restorative (有助恢复的) value. " "We form and store huge numbers of experiences in the head every day, and sleep seems to be the way the brain deals with it all."
【小题1】The phrase" to sleep on a problem" in Paragraph 1 most likely means to______.
| A．pay full attention to a problem | B．wait until later for a decision |
| C．sleep to forget a problem | D．have difficulty sleeping |
| A．put together words of similar meanings |
| B．remember words and their meanings |
| C．show their knowledge of words |
| D．make up lists of related words |
| A．Themes learned right before the test |
| B．Rules from personal experience |
| C．Words learnt before a good sleep |
| D．Ideas stored together in the brain |
| A．It shows sleep may help us manage information |
| B．It helps find out the common themes of word |
| C．It tells us that more sleep can improve health |
| D．It proves the value of old-fashioned advice |
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