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.” 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 |
The research mentioned in the passage is most probably about ______.
| 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 |
The underlined word “scrutinized” probably means “______”.
| A．examined carefully | B．copied patiently |
| C．corrected quickly | D．admitted freely |
Which of the following shows the structure of the passage?
A． |
B． |
C． |
D． |
CP: Central Point P: Point Sp: Sub-point (次要点) C: Conclusion
The energy crisis (危机) has made people aware of how the careless use of the earth’s energy has brought the whole world to the edge of disaster. The over – development of motor transport, with its increase of more cars, more traveling, has contributed to the near – destruction of our cities and the pollution not only of local air but also of the earth’s atmosphere.
Our present situation is unlike natural disasters of the past. Worldwide energy use has brought us to a state where long – range planning is vital. What we need is not a continuation of our present serious state, which endangers the future of our country, our children, and our earth, but a movement forward in order to work rapidly and effectively on planetary problems.
This country has been falling back under the continuing exposures of loss of morality and the revelation (揭露) that lawbreaking has reached into the highest place in the land. There is a strong demand for morality to turn for the better and for some devotion that is vast enough and yet personal enough to enlist the devotion of all. In the past it has been only in a way in defense of their own country and their own benefits that people have been able to devote themselves wholeheartedly.
This is the first time that we have been asked to defend ourselves and what we hold dear in cooperation with all the
other people of this planet, who share with us the same endangered air and the same endangered oceans. There is a common need to reassess our present course, to change that course and to employ new methods through which the world can survive. This is a priceless opportunity.
To grasp it, we need a widespread understanding of nature if the crisis we and the world are facing is no passing inconvenience, no byproduct of the ambitions of the oil – producing countries, no environmentalists’ only fears, no byproduct of any present system of government. What we face is the result of the invention of the last four hundred years. What we need is transformed life style. This new life style can flow directly from science and technology, but its acceptance depends on a sincere devotion to finding a higher quality of life for the world’s children and future generation.Which of the following has nearly destroyed our cities?
| A．The loss of beliefs and ideas. | B．More of law – breaking. |
| C．Natural disasters in many areas. | D．The rapid growth of motors. |
By comparing past problems with present ones, the author draws our attention to the .
| A．seriousness of this crisis | B．ineffectiveness of laws |
| C．similarity of the past to the present | D．hopelessness of the situation |
Which of the following is used as an example to show the loss of morality?
| A．Disregard for law. | B．Lack of devotion. |
| C．Lack of understanding. | D．Destruction of cities. |
The author wrote the passage in order to .
| A．make a recommendation for a transformed life style |
| B．limit ambitions of the people of the whole world |
| C．demand devotion to nature and future generation |
| D．encourage awareness of the decline of morality |
Every baby born a decade from now will have its genetic code (基因编码) mapped at birth, the head of the worlds’ leading genome sequencing (基因图谱) company has predicted.
A complete DNA read – out for every newborn will be technically possible and affordable in less than five years, promising a revolution in healthcare, says Jay Flatley, the chief executive of Illumina. Only social and legal problems are likely to delay the age of “genome sequences,” or genetic profiles. By 2019 it will have become routine to map infants’ genes when they are born, Dr Flatly told The Times.
This will open a new approach to medicine, by which conditions such as high blood pressure and heart disease can be predicted and prevented and drugs used more safely and effectively.
A baby’s genome can be discovered at birth by a blood test. By examining a person’s genome, it is possible to identify raised risks of developing diseases such as cancers. Those at high risk can then he screened more regularly, or given drugs or dietary advice to lower their chances of becoming ill.
Personal genomes could also he used to ensure that patients get the medicine that is most likely to work for them and least likely to have side – effects.
The development, however, will raise legal concerns about privacy and access to individuals’ genetic records.
“Bad things can be done with the genome. It could predict something about someone – and you could possibly hand the information to their employer or their insurance company.” said Dr Flatley.
“People have to recognize that this horse is out of the barn, and that your genome probably can’t be protected, because everywhere you go you leave your genome behind. Complete genetic privacy, however, is unlikely to be possible”, he added.
As the benefits become clearer, however, he believes that most people will want their genomes read and interpreted. The risk is nothing compared with the gain.In the first two paragraphs, the author mainly wants to tell us about .
| A．the significant progress in medicine |
| B．the promise of a leading company |
| C．the information of babies’ genes |
| D．the research of medical scientists |
Which of the following is a problem caused by this approach?
A．The delaying in discovering DNA.
B．The risk of developing diseases at birth.
C．The side – effects of medicine on patients.
D．The letting out of personal genetic 
information.What does the underlined sentence “… this horse is out of the barn” mean?
| A．Genetic mapping technique has been widely used. |
| B．Genetic mapping technique is too horrible to control. |
C．People are eager to imp rove gen etic mapping technique. |
| D．people can’t stop genetic mapping technique advancing. |
What’s Dr Flatley’s attitude towards the technology?
| A．Tolerant. | B．Conservative. | C．Positive. | D．Doubtful. |
The Touchstone
When the great library of Alexandria burned, the story goes, one book was saved. But it was not a valuable book; and so a poor man, who could read little, bought it for very little money.
The book wasn't very interesting, but between its pages there was something very interesting indeed. It was a thin strip of vellum on which was written the secret of the "Touchstone"! The touchstone was a small pebble that could turn any common metal into pure gold.
The writing explained that it was lying among thousands and thousands of other pebbles that looked exactly like it. But the secret was this: The real stone would feel warm, while ordinary pebbles are cold.
So the man sold his few belongings, bought some simple supplies, camped on the seashore, and began testing pebbles. He knew that if he picked up ordinary pebbles and threw them down again because they were cold, he might pick up the same pebble hundreds of times. So, when he felt one that was cold, he threw it into the sea. He spent a whole day doing this but none of them was the touchstone. Yet he went on and on this way. Pick up a pebble. Cold - throw it into the sea. Pick up another. Throw it into the sea. Pick up another. Throw it into the sea. The days continued over a long period if time.
One day, however, about mid-afternoon, he picked up a pebble and it was warm. He threw it into the sea before he realized what he had done. He had formed such a strong habit of throwing each pebble into the sea that when the one he wanted came along he still threw it away.
So it is with opportunity. Unless we are cautious, it’s easy to fail to recognize an opportunity when it is in hand and it’s just as easy to throw it away.The man bought the book because .
| A．he wanted to read it | B．it was very interesting |
| C．there was a secret in the book | D．he wanted to find the touchstone |
We can learn from the passage that the touchstone is .
| A．pure | B．cold | C．magic | D．big |
Why did the man throw the pebbles into the sea?
| A．Because he didn’t want to get the same pebbles. |
| B．Because he didn’t want others to pick them up. |
| C．Because he didn’t like their ordinary looks. |
| D．Because he didn’t like the cold feelings. |
What does the author want to tell us in the passage?
| A．We about orate opportunities in our life. |
| B．We should seek for opportunities in the world. |
| C．We may seize opportunities when we are watchful |
| D．We may discover opportunities when forming habits. |
Eight – year – old Jesse Abrogate was playing in the sea late one evening in July 2001 when a 7 – foot bull shark attacked him and tore off his arm. Jesse’s uncle jumped into the sea and dragged the boy to shore. The boy was not breathing. His aunt gave him mouth – to – mouth resuscitation (人工呼吸) while his uncle rang the emergency services. Pretty soon, a he
licopter arrived and flew the boy to hospital. It was a much quicker journey than the journey by road.
Jesse’s uncle, Vance Folsenzier, ran back into to the sea and found the shark that had attacked his nephew. He picked the shark up and threw it onto the beach. A coastguard shot the fish four times and although this did not kill it, the shark’s jaws relaxed so that they could open them, and reach down into its stomach, and pull out the boy’s arm.
At the Baptist Hospital in Pensacola, Dr Ian Rogers spent eleven hours reattaching Jesse’s arm. “It was a complicated operation,” he said, “but we were lucky. If the arm hadn’t been recovered in time, we wouldn’t have been able to do the operation at all. What I mean is that if they hadn’t found the shark, well then we wouldn’t have had a chance.’
According to local park ranger Jack Tomosvic, shark attacks are not that common. “Jesse was just unlucky,” he says, “evening is the shark’s feeding time. And Jesse was in area without lifeguards. This would never have happened if he had been in area where swimming is allowed.’
When reporters asked Jesse’s uncle how he had had the courage to fight a shark, he replied, “I was mad and you do some strange things when you’re mad.”What was the boy doing when the accident happened?
| A．Feeding a hungry shark. | B．Jumping into the  rough sea. |
| C．Dragging a boy to the shore. | D．Swimming in a dangerous area. |
In which way did the boy’s uncle help with the operation?
| A．By finding his lost arm. | B．By shooting the fish. |
| C．By flying him to hospital. | D．By blowing into his mouth. |
How was his uncle in time of danger?
| A．Careful. | B．Brave. | C．Optimistic. | D．Patient. |
"Depend on yourself" is what nature says to every man. Parents can help you. Teachers can help you. But all these only help you to help yourself.
There have been many men in history. But many of them were very poor in childhood, and no uncles, aunts or friends to help them. Schools were few. They could not depend upon them for an education. They saw how it was and set to work with all their strength to know something. They worked their own way till they became well-known.
One of the most famous teachers in England used to tell his pupils, "I can not make worthy men of you, but I can help make men of yourself."
Some young men don't try their best to make themselves valuable to the human beings. They can never gain achievement(成就) unless they see their weak points and change their course. They are nothing now, and will be nothing as long as they live, unless they accept the advice of their parents and teachers, and depend on their own efforts.
64. Which of the following titles fits this article best?
A. What Nature Says to Every Man. B. How to Be Famous.
C. Men Must Help Each Other. D. Depend on Yourself.
65. Many of the great men succeeded because ____________．
A. they wanted very much to become well known
B. they made great efforts to learn and work
C. they had received a good education
D. they had rich parents
66. According to the famous teacher in England, a teacher can________.
A. make his pupils rich men
B. help his pupils find a way to be famous
C. help his pupils make themselves useful men
D. make his pupils men of strength and courage
67. If young people depend on their own efforts, ______.
A. they are sure to be very famous in the world
B. they can be successful in their lives
C. they can live without their families
D. they no longer need any help