Why texting harms your IQThe regular use of text messages and e-mails can lower
题型：不详难度：来源：
The regular use of text messages and e-mails can lower the IQ more than twice as much as smoking marijuana (大麻). That is the statement of researchers who have found that tapping away on a mobile phone or computer keypad or checking for electronic messages temporarily knocks up to 10 points off the user’s IQ. This rate of decline in intelligence compares unfavorably with the four-point drop in IQ associated with smoking marijuana, according to British researchers, who have described the phenomenon of improved stupidity as “infomania”. The research conducted by Hewlett Packard, the technology company, has concluded that it is mainly a problem for adult workers, especially men.
It is concluded that too much use of modern technology can damage a person’s mind. It can cause a constant distraction of “always on” technology when employees should be concentrating on what they are paid to do. Infomania means that they lose concentration as their minds remain fixed in an almost permanent state of readiness to react to technology instead of focusing on the task in hand. The report also added that, in a long term, the brain will be considerably shaped by what we do to it and by the experience of daily life. At a microcellular level, the complex networks of nerve cells that make up parts of the brain actually change in response to certain experiences.
Too much use of modern technology can be damaging not only to a person’s mind, but to their social relationship. 1100 adults were interviewed during the research. More than 62 per cent of them admitted that they were addicted to checking their e-mails and text messages so often that they scrutinized work-related ones even when at home or on holiday. Half said that they always responded immediately to an email and will even interrupt a meeting to do so. It is concluded that infomania is increasing stress and anxiety and affecting one’s characteristics. Nine out of ten thought that colleagues who answered e-mails or messages during a face-to-face meeting were extremely rude.
The effects on IQ were studied by Dr Glenn Wilson, a psychologist at University of London. “This is a very real and widespread phenomenon,” he said. “We have found that infomania will damage a worker’s performance by reducing their mental sharpness and changing their social life. Companies should encourage a more balanced and appropriate way of working.”
小题1:We can learn from the passage that “infomania” ______.
| A．has a positive influence on one’s IQ |
| B．results in the change of part of the brain |
| C．lies in the problem of lack of concentration |
| D．is caused by too much use of modern technology |
| A．the important function of advanced technology |
| B．the damage to one’s brain done by unhealthy habits |
| C．the relevance between IQ and use of modern technology |
| D．the relationship between intelligence and working effectiveness |
| A．examined carefully | B．copied patiently |
| C．corrected quickly | D．admitted freely |
A． |
B． |
C． |
D． |
答案
小题1:D
小题2:C
小题3:A
小题4:B
解析
小题1:推理判断题，根据第一段内容可知，发短信等活动会导致智商下降。
小题2:推理判断题。根据第二段It is concluded that too much use of modern technology can damage a person’s mind可知，文章讲述的是当代技术的过度使用会对人的智商有影响。
小题3: 猜测词义题，根据后面的even when at home or on holiday可知，即使在家里或者放假的时候，还会认真的查看工作相关的邮件。
小题4:通读全文，根据各段大意可知。
举一反三
小题1:“Stay up late at night” here means .
| A．sleeping in bed |
| B．just sitting up without doing anything |
| C．walking about in the room |
| D．working far into the night |
| A．start to answer questions |
| B．work the difficult problems |
| C．have a look at the titles |
| D．read it very carefully |
| A．You must not hand in the examination paper before you check your answers. |
| B．You must wait till others point out mistakes in your paper. |
| C．You must first hand in your paper then correct the mistakes. |
| D．You must be the last to hand in your paper. |
The world already is having trouble feeding itself. Half the people on Earth live in cities, and nearly half of those – about 3 billion – are hungry or ill–fed. Food prices, currently increasing, are badly affected by dryness, floods and the cost of energy required to plant, harvest and transport it. And prices will only get more unstable. Climate change makes long-term crop planning uncertain. Farmers in many parts of the world already are using water available to the last drop. And the world is getting more crowded: by mid-century, the global population will grow from 6.8 billion to 9 billion.
To feed so many people may require expanding farmland at the expense of forests and wilderness, or finding ways to greatly increase crop output.
Gertjan Meeuws and three other Dutch bioengineers grow vegetables and house plants in closed and regulated environments. In their research station, water flows into the pans when needed, and the temperature is kept constant. Lights go on and off, creating “day” and “night”, but according to the rhythm of the plant.
Meeuws says a building of 100 square meters and layers of plants could provide a daily diet of 200 grams of fresh fruit and vegetables for the entire population of Ken Bosch, about 140,000 people. Their idea isn’t to grow foods that require much space, like corn or potatoes.
Sunlight is not only unnecessary but can be harmful. Plants need only specific wavelengths of light to grow. Their growth rate is three times faster than under greenhouse conditions. They use about 90 percent less water than outdoor agriculture. And city farming means producing food near the consumer, so there’s on need to transport it long distances.
小题1:According to the text, Gertjan Meeuws’ farming _______.
| A．can be used for corn production |
| B．is much like greenhouse farming |
| C．is adaptable to any environment |
| D．uses more water than outdoor farming |
| A．The effect of climate | B．The hungry people in cities. |
| C．The world’s food problem. | D．The world’s increasing population. |
| A．To compare traditional and indoor farming. |
| B．To discuss the influence of climate change. |
| C．To explain the world’s food problem. |
| D．To introduce a new model of farming. |
In a report Sunday, the Pew Internet and American Life Project said 47 percent of U.S. adult Internet users have looked for information about themselves through Google or another search engine.
That is more than twice the 22 percent of users who did in 2002, but Pew senior research specialist Mary Madden was surprised the growth wasn"t higher.
"Yes it"s doubled, but many Internet users have never done this simple act of plugging their name with search engines," she said.
Americans under 50 and those with more education and income were more likely to self-Google because their jobs demand a certain online persona.
Meanwhile, Pew found that 53 percent of adult Internet users admit looking up information about someone else, not including celebrities.
Often, it"s to find someone they have lost touch with. But looking up information about friends, relatives, colleagues and neighbors also was common.
Although men and women equally searched for online information about themselves, women were slightly more likely to look up information about someone they are dating.
In many cases, the search is done to find someone"s contact information. But a third of those who have conducted searches on others have looked for public records, such as bankruptcies(***) and divorce （离婚）proceedings. A similar number have searched for someone else"s photo.
Few Internet users say they Google themselves regularly —— about three-quarters of self-searchers say they have done so only once or twice. And most who have done so consider what they find accurate.
Pew also found that teens were more likely than adults to restrict who can see their information at an online hangout(常去之处) like Facebook or News Corp"s MySpace.
小题1:The number of American adult Internet users______ Mary Madden.
| A．frightened | B．pleased | C．disappointed | D．annoyed |
| A．common people | B．scientists |
| C．adults | D．53 percent adult Internet users |
| A．One- fifth | B．One-fourth | C．One- third | D．A half |
| A．Learn to Google Yourself | B．Googling Oneself Is Popular |
| C．New Performance Online | D．Don’t Google Yourself Online |
Flying foxes have babies once a year, giving birth to only one at a time. At first the mother has to carry the baby on her chest wherever she goes. Later she leaves it hanging up, and brings back food for it to eat. Sometimes a baby bat falls to the ground. Then the older ones fly down and try to pick it up. If they fail to do so, it will die. Often hundreds of baby bats can be found lying on the ground at the foot of the tree.
小题1:The passage tells us that there is no difference between the flying fox and the ordinary bat in ______.
| A．their size | B．their appearance |
| C．the kind of food they eat | D．the way they rest |
| A．double their number every year |
| B．fight and kill a lot of themselves |
| C．move from place to place very often |
| D．lose a lot of their young |
| A．fly out toward the sun |
| B．look for a new resting place |
| C．come back to their home |
| D．go out and look for food |
| A．to occupy the best resting places |
| B．only when it is dark |
| C．to protect their homes from outsiders |
| D．when there is not enough food |
| A．They only care for their own babies. |
| B．They share the feeding of their young. |
| C．They help when a baby bat is in danger. |
| D．They often leave home and forget their young. |
In deep icy waters under Antarctica, scientists found bulbous tunicates, an underground animal, and many newly-discovered creatures believed to be related to starfish (海星) and other marine(海洋的）creatures.
Elsewhere in the world’s oceans, they have recently discovered many kinds of underwater life forms new to science. It is all part of a research effort called the Census of Marine Life.
“There are about 2,000 scientists worldwide involved,” said Bob Gagosian, President, CEO of the Consortium for Ocean Leadership. Gagosian helps manage the project. “Everywhere they’ve gone they’ve found new things,” he says. “The ocean basically is unexplored from the point of view of marine living things.”
Researchers have placed small markers on hundreds of fish and marine animals to track by satellite their migration(迁移）routes and to discover places where sea life gathers.
According to Ron O’Dor, a senior scientist with the Census of Marine Life, knowledge of life on the ocean floor is especially limited. “90% of all the information we have is from the top hundred meters of the ocean,” O’Dor states.
And he says the sea floor is, on average, at a depth of 4, 000 meters. And so, as some machines dive far below what people have previously seen, scientists are discovering new species of plants, animals and living things.
Since the census project began, more than 5,300 new marine animals have been found. Ocean researchers say they hope to catalogue 230,000 species during the census —which some say is only a small part of all the creatures living in the sea.
小题1:Why do the researchers place small markers on many marine creatures?
| A．To catch them. | B．To research them. |
| C．To kill them. | D．To protect them. |
| A．human beings only know a little about marine life |
| B．the oceans don’t need to be further explored |
| C．he considers exploring the ocean a dangerous thing |
| D．the marine creatures mainly live on the top of the ocean |
| A．About 2,000 scientists from America are involved in the project. |
| B．The census of sea life will last for ten years. |
| C．230,000 new marine animals have been found. |
| D．The sea floor is at a depth of 400 meters. |
| A．To tell the news that new marine creatures are being discovered |
| B．To encourage people to find new marine creatures |
| C．To prove the importance of marine creatures |
| D．To introduce the newly-discovered creatures. |
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