题目内容
To British people,Canadians may sound American; to Americans,they may sound British. Canadians themselves insist on not being identified with .
A.either | B. both | C. any | D.neither |
A
解析
Why texting harms your IQ
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. |
A town in Oxfordshire has become the first in the UK to have biomethane(生物甲烷)gas from human waste piped to their homes for gas central heating and cooking.
Up to 200 families in Didcot now receive the gas via the national gas power system. Head of energy and technology at British Gas, Martin Orrill, said customers wouldn’t notice any difference as the gas is purified(提炼)to the highest standard and has no smell. The gas is produced at a sewage(污物)treatment works plant in Didcot.
The entire process takes only less than three weeks, with the sewage being collected and sent first to settlement tanks. The solid waste material is then fed into digesters, where anaerobic bacteria(厌氧菌)digest the sewage, with the aid of enzymes(酶)to speed up the process. The digestion process produces methane, which can be burned to drive machines to produce electricity, or can be purified and fed into the gas network and piped to homes and businesses. British Gas says supplying the gas rather than electricity is far more efficient since around two-thirds of the energy is lost in producing electricity.
Partners in the Didcot project, British Gas, Scotia Gas Networks, and Thames Water, all hope to expand the process to other towns, and other companies such as Ecotricity and United Utilities have also announced biomethane projects being planned. One of these projects, in Manchester, could be supplying 500 homes with biomethane by mid next year. Another British Gas project in Suffolk will provide gas from digestion of brewery wastes to around 235 families.
The Didcot project cost £2.5m and was influenced by promises of government aids aimed at encouraging companies to develop renewable technologies. An EU directive means the UK must ensure at least 15 percent of its energy is from renewable sources by 2020.
The UK produces about 1.73 million tons of sewage annually. If all sewage treatment works in the UK were fitted with the technology, they could supply gas for up to 350,000 families.
【小题1】Which of the following is true of the biomethane gas?
A.It’s mainly made from rotting plants. |
B.It’s an environmentally friendly gas. |
C.Its production process is too long. |
D.It’s easily recognized by the customers. |
A.To digest the solid waste material. |
B.To help get rid of anaerobic bacteria. |
C.To help purify the biomethane. |
D.To speed up the digestion process. |
A.as the power for the vehicles |
B.for the heating and cooking |
C.to produce the electricity |
D.to drive a variety of machines |
A.UK government supports the biome thane projects |
B.the biome thane projects are very costly |
C.the biome thane projects still face many barriers |
D.the biome thane projects are promising |
A.Computer science. | B.Engineering. | C.Energy. | D.Business. |