The biggest danger facing airlines nowadays may not be a terrorist with a gun, but the man with portable computer in business class. In the last 16 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference (電磁干擾). The source of this interference remains not proved, but increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones.
RTC.A. an organization which advises the aviation (航空 )industry, has suggested that all airlines ban such devices from being used during "critical" stages of flight particularly take- off and landing. Some experts have gone further, calling for a total ban during all flights .Cur- rently , rules on using these devices are left up to individual airlines. And although some air- lines prevent passengers from using such equipment during take-off and landing, most are un- willing to carry out a total ban, given that many passengers want to work during flight.
The difficulty is predicting how electromagnetic fields might affect an aircraft's computers. Experts know that portable devices send out radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory. they have no way of knowing whether the interference might be. dangerous or not.
The fact that aircraft may be fragile to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, is the passenger who can 't hear the instructions to turn off his radio because the music's too loud.
【小題1】What is said about the over 100 aircraft incidents in the past 16 years?
A.They may have been caused by the damage to-the radio systems. |
B.They may have taken place during take-off and landing. |
C.They were proved to have been caused by the passengers portable computers. |
D.They were suspected to have resulted from electromagnetic interference. |
A.Because it is extremely dangerous to conduct such research on an airplane. |
B.Because it remains a mystery what wavelengths are liable to be interfered with. |
C.Because research scientists have not been able to produce the same effects in labs. |
D.Because experts lack adequate equipment to do such research. |
A.they don't believe there is such a danger as radio interference |
B.the harmful effect of electromagnetic interference is yet to be proved |
C.most passengers refused to take a plane ,which bans the use of radio and cassette players |
D.they have other effective safety measures to fall back on |
A.a(chǎn) new rule for all airlines |
B.the disadvantages of electronic devices |
C.a(chǎn) possible cause of aircraft incidents |
D.effective safety measures for air flight |
【小題1】D
【小題2】C
【小題3】B
【小題4】C
解析試題分析:這篇文章是一篇科普類,介紹了飛機事故的一種可能成因,即便攜式電子設(shè)備所造成的影響。
【小題1】細(xì)節(jié)理解題:依據(jù)文章第一段第二句in the last 16 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference。故選D。
【小題2】細(xì)節(jié)題:依據(jù)第三段最后一句But, because they have not been able to reproduce these effects in a laboratory. they have no way of knowing whether the interference might be. dangerous or not.可知選C選項,故選C。
【小題3】推理判斷題:依據(jù)文章第三段可知The difficulty is predicting how electromagnetic fields might affect an aircraft's computers.可知,答案選B。A、C、D三個選項明顯在文章中沒提到。故選B。
【小題4】主旨大意題:通讀全文可知,本文在討論便攜式電子設(shè)備可能對航空事故的影響。故選C。
考點:考查科普類閱讀
科目:高中英語 來源: 題型:閱讀理解
As researchers learn more about how children's intelligence develops, they are increasingly surprised by the power of parents.The power of the school has been replaced by the home.To begin with, all the factors which are part of intelligence—the child's understanding of language,learning patterns, curiosity—are established well before the child enters school at the age of six.Study after study has shown that even after school begins, children's achievements have been far more influenced by parents than by teachers.This is particularly true about learning that is language?related.The school rather than the home is given credit for variations in achievement in subjects such as science.
In view of their power, it's sad to see so many parents not making the most of their child's intelligence.Until recently parents had been warned by educators who asked them not to educate their children.Many teachers now realize that children cannot be educated only at school and parents are being asked to contribute both before and after the child enters school.
Parents have been particularly afraid to teach reading at home.Of course,children shouldn't be pushed to read by their parents, but educators have discovered that reading is best taught individually—and the easiest place to do this is at home.Many four?and five?year?olds who have been shown a few letters and taught their sounds will compose single words of their own with them even before they have been taught to read.
【小題1】What have researchers found out about the influence of parents and the school on children's intelligence?
A.Parents have greater influence than the school. |
B.The school plays a greater role than parents. |
C.Parents and the school have the equal power. |
D.Neither parents nor the school has any influence. |
A.it is with the help of the teachers that children have an understanding of language |
B.curiosity is formed after the children enter school |
C.children's learning patterns are developed at the early age |
D.only the school can give children the opportunity to make achievements |
A.Moral education. | B.Language education. |
C.Physical education. | D.Science education. |
A.they usually push the children to read at home |
B.they only teach them after they enter school |
C.they teach them in a wrong way at home |
D.they were told by educators not to teach their children |
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科目:高中英語 來源: 題型:閱讀理解
For many of us, a little time with our smartphones or iPads before sleep is the highlight of the night. But would you still think it is relaxing if you knew that it damages or destroys your sleep? Scientists say that's exactly what it does.
In ancient times, when there were no lamps, telephones or smartphones, the sun was the main source of light. When the sun went down, our brains took that as a signal to start producing melatonin(褪黑素), a chemical that helps us sleep.
However, a healthy amount of melatonin can only be produced in complete darkness.Any light in your bedroom—even the one on the alarm clock or the charging indicator on your cellphone—could disturb the process, not to mention something as bright as smartphone and iPad screens. We tend to hold these much closer than a television or laptop, which allows them to shoot far more light straight into our eyes.
“This is particularly worrisome in populations such as young adults and adolescents, who already tend to be night_owls,” said researcher Brittany Wood at Rensselaer Polytechnic Institute.“Lack of sleep among teens is leading to depression, selfharm, low concentration and poor performance at school,” she added.
While all lights are the enemy of sleep, not all colors of light have the same effect. Our eyes are particularly sensitive to blue light, which is common during the day. Most of the light coming from electronic screens is blue light and it fools our brain into thinking it's still daytime. By contrast, orange or red light has less influence on melatonin production, because our brains recognize it as a signal that the day is ending, according to The Telegraph.
Asking yourself to keep your hands off your smartphone before bedtime might seem unreasonable, but you should at least remember to dim the screen or hold it farther away from your eyes. You could also wear a pair of orange sunglasses that take away the harmful blue light.
【小題1】According to the passage, we can know ________.
A.it's a good habit to play with smartphones or iPads late into night |
B.scientists suggest we should avoid using smartphones or iPads |
C.darkness makes a great impact on the amount of melatonin |
D.the sun was the only source of light in ancient times |
A.The darker it is, the more melatonin will be produced. |
B.The lighter it is, the more melatonin will be produced. |
C.The more melatonin you have, the worse you'll sleep. |
D.The more electrical equipment you have, the more melatonin will be produced. |
A.who are young adults or adolescents |
B.who don't perform well in school |
C.who are addicted to a television or laptop |
D.who are short of sleep at night and perform poorly in daily life |
A.You should go to bed when the sun goes down. |
B.You should use an orange or red light electronic screen. |
C.You should wear a pair of blue sunglasses when sleeping. |
D.You should avoid blue light as possible as you can before bedtime. |
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科目:高中英語 來源: 題型:閱讀理解
At first sight the planet Mars(火星)does not appear very welcoming to any kind of life. It has very little oxygen and water, the temperature at night is below 50 degrees and winds of 100 miles(161 kilometers)per hour cause severe dust storms. However, the surface of the planet seems to show that water flowed across it at some time in the past, and it is believed that there would be enough ice at the poles to cover the planet with water if it melted. Although there is no life on the Mars now, some scientists think there may have been some form of life a long time ago. At that time, the planet had active volcanoes(火山); the atmosphere was thicker and warmer; and there was water. In fact, in some ways the Mars may have been similar to the Earth, where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced. The first step would be to warm the planet using certain gases which trap the Sun’s heat in the planet’s atmosphere. With warmth, water and carbon dioxide, simple plants could begin to grow. These plants could slowly make the Mars fit to live on. It is judged that the whole process might take between
100, 000 and 200, 000 years. In the meantime, people could begin to live on the planet in a special closed environment. They would provide a lot of useful information about conditions on the Mars and the problems connected with living there.
【小題1】 According to the passage, the planet Mars has no on it.
A.winds | B.dust |
C.mountains | D.a(chǎn)nimals |
A.there is a large amount of ice at the poles |
B.there is a thicker and warmer atmosphere |
C.there are some kinds of simple plants |
D.there are many active volcanoes |
A.Certain gases should be used to warm the Mars. |
B.Plants should be grown to make the Mars fit to live on. |
C.The Mars could support life on right conditions in the future. |
D.People could live on the Mars in a special closed environment. |
A.No Life on the Mars |
B.Study of the Mars |
C.The Possibility of Life on the Mars |
D.Future Conditions on the Mars |
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科目:高中英語 來源: 題型:閱讀理解
DAVID Beckham. Cristiano Ronaldo and Rnfacl Nadal while you watch sports and admin* the players’ skills, do you ever notice how handsome the players are?
Yes, sportsmen tend to be handsome. And they haven’t only attracted the interest of the audience even scientists are now studying their good looks.
In a recent study, Erik Postma, a biologist at the University of Zurich in Switzerland, collected the headshots(頭像)of 80 professional athletes from I hr 2012 Tour He France, a bicycle race held in Franco. The race, which covers 3,200 kilometers in 23 days, is often considered to In* one of the hardest endurance(耐力)events, according to The Telegraph.
Postma then asked female participants to score the cyclists’ attractiveness.judging them only based on their facial appearances. So, if a participant recognized any of the cyclists, meaning she knew how good he was at the sport, her score wouldn’t count.
After comparing all the scores with the cyclists’ performances in the 2012 race, Postma was surprised to find that the best riders were rated on average 25 percent more attractive than the worst ones. For example, one of the cyclists, Maxime Monfort , came third in terms of attractiveness and sixth in terms of performance, reported Discovery News.
But where did women get the ability to single out a good rider by simply looking at his face?
According lo Postma, evolution (進化) seems to be the answer. In ancient times, women preferred to marry strong men because they would provide good genes for their children. A man with great endurance was also able to cover long distances to hunt for food, which would allow him to better feed the family. “That’s why endurance performance was a key evolutionary factor.” Postma told Discovery News.
As you can see, it’s not that sportsmen ate more attractive themselves, women were just born to think of them that way.
Perhaps surprisingly, when Postma did the same test with male participants, he found that men actually had a quite similar view on which riders were handsome. Even
though most men aren’t aware of it. they inherited (繼承) this ability from their ancient past, when it was necessary to “spot potential competitors” , explained Postma.
【小題1】What did Erik Postma ask female participants to do in his study?
A.To help collect the headshots of professional cyclists from the Tour de France. |
B.To pick out the cyclists whom they are familiar with or appreciate most. |
C.To rate the cyclists’ attractiveness according to facial appearance. |
D.To predict the cyclists ’ performances based on facial appearance. |
A.The more attractive a cyclist was, the better he performed in the race. |
B.Generally, a cyclist’s endurance had nothing to do with his attractiveness. |
C.Attractive cyclists proved to have less endurance than those who were less attractive. |
D.Those who performed best in the games were considered more attractive than those who performed worst. |
A.Women and men hold quite different views on male attractiveness. |
B.Men with good looks tend to lie less popular than men with great endurance. |
C.A man with great endurance appealed to women in ancient times and this remains the same today. |
D.Most men don* t have the same ability as women to single out a good sportsman by simply looking at his face. |
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科目:高中英語 來源: 題型:閱讀理解
If you think English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven’t you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.
The study also found the earlier people learn a second language, the greater the effect is.
A team led by Dr. Andrea Mechelli, from University College London(UCL), took a group of Britons who only spoke English. They were compared with a group of“early bilinguals(通兩種語言的人)”, who had learnt a second language before the age of five, as well as a number of later learners.
Scans showed that grey matter density in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference was.
“Our findings suggest that the structure of the brain is changed by the experience of learning a second language,”said the scientists.
It means that the change itself increases the ability to learn.
Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills.
“Having two languages gives you two windows on the world and makes the brain more flexible,”he said,“You are actually going beyond language and have a better understanding of different ideas.”
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of 2 and 34. Reading, writing and comprehension were all tested. The results showed that the earlier they started to learn, the better.“Studying a language means you get an entrance to another world,”explained the scientists.
【小題1】What does the underlined part“grey matter”(in paragraph 2) refer to?
A.Grey hair. | B.Material of the brain. |
C.Intelligence. | D.Difficult situations. |
A.change one’s brain completely |
B.improve one’s maths skills |
C.make one smarter than others |
D.increase the ability to learn |
A.the researchers from UCL did another study in Italy |
B.a(chǎn) similar study was done on native Italian speakers who learn English as a second language |
C.the research done on the Italians showed a totally different result |
D.it will be easier for one to travel around the world by learning a second language |
A.Learning a second language can help improve your brain power. |
B.You should learn a second language in English that is not your native language. |
C.If you want to learn a second language, you should do it at a certain age. |
D.The research done by the researchers from UCL is very successful. |
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科目:高中英語 來源: 題型:閱讀理解
Running like the wind, roaring (咆哮) like thunder, tigers have long been feared and respected as a king of the animal world. But last week a report said that there are no more than 30 wild tigers left in south China.
This was the conclusion of a team of scientists from China's State Forestry Administration and the World Nature Fund.
The South China tiger, also known as the Chinese tiger, is native to southern China. In the 1950's, there were over 4000 tigers found in mountain forests in the country. But due to the destruction of their natural habitat and uncontrolled hunting, it has been pushed on to the list of the world's top ten most endangered species.
Sixtysix of the big cats can be found in the cages of a dozen zoos around China. But they are nothing like their wild cousins. They have lost their natural skills such as hunting and killing. If they were set free they could not look after themselves.
“Breeding has damaged the quality of the species”, said Pei Enle, deputy director of the Shanghai Zoo.
To reintroduce the species into the wild, the country started a programme to send five to ten young tigers to South Africa. Four of them have already arrived. Progress has been made as two elder tigers have recovered some of their instincts(本能) and can hunt wild animals by themselves at the African base.
“South Africans are very experienced in reintroducing big animals to the wild. The country has very good natural conditions for the tigers to learn in”, said Lu Jun, office director of the National Wildlife Research and Development Center.“We tried in Fujian Province, but it was not successful as there was not a complete ecochain(生物鏈) and there was a lack of space.”
The tigers should return to China in 2007 when the reservations in Fujian are ready.
【小題1】What is the main reason for the South China tiger becoming one of the world's top ten most endangered species?
A.Because it has lost its natural instincts. |
B.Because there is not a complete ecochain. |
C.Because there is no space for it. |
D.Because uncontrolled hunting has destroyed its natural living conditions. |
A.Its effect still remains to be seen. |
B.Two tigers can already compete with their wild cousins. |
C.Some of the tigers are already on the road to recovering their natural skills. |
D.The tigers should be able to recover their instincts completely by 2007. |
A.they are no longer feared by other wild animals |
B.they don't know how to hunt or kill |
C.a(chǎn) complete change has resulted in the species because of breeding |
D.to reintroduce them into the wild has become an urgent task |
A.To help the tigers recover their ability to live in the wild. |
B.To provide them with a better environment. |
C.To get the tigers to go on a tour. |
D.To find a complete ecochain for them. |
A.Because the tigers can hunt wild animals by themselves at the African base. |
B.Because South Africans are skilled at dealing with the tigers. |
C.Because there is a complete ecochain and enough space there. |
D.Because the country has good natural conditions for the tigers to learn in. |
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科目:高中英語 來源: 題型:閱讀理解
Butterflies are some of the most fascinating and beautiful insects in the world. Adult butterflies will live about 2 to 4 weeks. They use their senses of sight, touch, hearing, smell, and taste to survive in the world, find food and mates, lay eggs in an appropriate place, migrate, and avoid hungry enemies.
Butterflies have large compound eyes, which allow them to see in all directions without turning their heads. Like most insects, butterflies are very nearsighted, so they are more attracted to a sea of flowers than individual plants. Butterflies do not “see” colors such as red, green, and yellow, but they can sense sunlight, which indicates the direction the sun is shining, as well as ultraviolet light, which is present on many flowers and guides butterflies to honey sources.
Butterflies have a very well-developed sense of smell, but it is not in their nose, since they don't have one. Sense receptors are located in their antennae, feet, and many other parts of the body. They can help butterflies find their favorite flower honey food, and mates.
Butterflies' feet have sense organs that can taste the sugar in flower honey, letting the butterflies know if something is good to eat or not. Some females also carefully choose host plants by tasting to find appropriate places to lay their eggs. Adult butterflies feed their babies using a long tube. Butterflies force blood into the tube to straighten it out, allowing them to feed. Butterflies get all their food from this tube.
Butterflies don't have ears. Instead they “hear” sounds through their wings by sensing changes in sound vibrations.
Butterflies may possess senses we don't even know about yet, because their body structure is very different from ours, and therefore difficult to understand, when observed through our own human senses.
【小題1】The text mainly focuses on ________.
A.butterflies' living habits | B.butterflies' beauty |
C.butterflies' senses | D.butterflies' daily activities |
A.Butterflies can see in all directions and don't need to turn heads. |
B.Butterflies have good eyesight. |
C.Butterflies are sensitive to bright colors including red and yellow. |
D.Butterflies cannot sense the ultraviolet light. |
A.To find highqualified honey. |
B.To have a good place for living. |
C.To make it easier for them to hide from the enemies. |
D.To find a proper place for their eggs. |
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科目:高中英語 來源: 題型:閱讀理解
Pilling a cat can be a 'terrible” experience. Cats don’t want something pushed down their throats, and they’ll fight with all their strength to prevent it. In fact, it’s amazing how powerful their small bodies can be.
The easiest way of pilling a cat is to press the pill into powder. Then mix the powder with a small amount of wet food. If your cat usually eats dry food, she will probably view the wet food as a treat and eat it up.
If your cat won’t eat the wet food that contains the pill or if she is too ill to eat, you can get a “pill gun”. There are some basic instructions. Getting your cat’s mouth to open is going to be the most difficult part. First, be sure the pill is in a handy place. Then you can put your cat on a bookshelf with her bottom in a corner or you can put her on your lap firmly tied. Have your cat facing to the right if you’re right-handed. With your left hand, hold your cat at the cheekbones, putting your palm (手掌) at the top of her head. Keeping your finger off the trigger (扳機), with your right hand, Insert the pill gun until the pill is positioned over the tongue and open throat Be sure to give your cat a treat directly after giving the pill.
If you don’t feel comfortable using a pill gun, you can try giving the pill by hand. Push your cat’s head backwards just far enough so that her nose is pointing towards the ceiling. At this point, most cats will slightly open their mouths. With the little finger or ring finger of the hand holding the pill, open the bottom jaw a little more. You may need to hold her top jaw with your other hand while doing this. Aim straight and lightly throw the pill or drop it. Most cats will then swallow the pill.
【小題1】Pilling a cat can be a terrible experience because cats ______.
A.a(chǎn)re amazingly powerful and dangerous |
B.may fight with all their strength against pills |
C.refuse something pressed down their throats |
D.a(chǎn)re difficult to treat once they’ve got ill |
A.Wet food with medicine is usually a treat to cats. |
B.Cats used to dry food must reject wet food. |
C.The easiest pilling is to press the pill into powder. |
D.Cats arc most likely interested in something new. |
A.facing to the right | B.with your right hand |
C.a(chǎn)t the head | D.on your lap firmly |
A.its nose is straight upwards | B.it is touched by fingers |
C.its head is turning around | D.it is served with its favorite pills |
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