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 |
What is the main idea of this passage?
| A．The regular use of text messages and e-mails can be compared to smoking marijuana. |
| B．The regular use of text messages and e-mails can harm your IQ. |
| C．Modern technology can damage a person’s mind. |
| D．Electronic messages have side effects on the user’s life. |
Babies who are slow to gain weight in the first months of their lives generally catch up to their peers by age 13,a large UK study shows, Researchers said the results would make parents whose babies fail to put on weight quickly less worried.
The researchers looked at data from ,11,499 children who took part in a large study, It showed that 507 who were slow to gain weight in the first eight weeks of life recovered fairly quickly and had almost caught up by age 2. Another group of 480 who were slow to gain between eight weeks and nine months continued to put on weight slowly until they were seven years ,but then had a sudden increase and caught up by age 13, The different pattems of recovery between the two groups were likely due to different reasons for slow weight gain ,the researchers said, All the children were still lighter and shorter than their peers by the time they were teenagers ,but within the normal range.
The findings highlight the importance of monitoring a baby’s weight and height gain during the first few weeks and months ,but not creating anxiety with parents of slow-growing babies, said the study leader Prof Alan Emond from the University of Bristol.
“In the past, a lot of parents have been caused unnecessary anxiety by heaith professionals and this is a positive and reassuring message.”He said in many cases of slow growth where children do not follow the standard’curve’(曲线)it is just because they are following their genetic potential.
Dr Simon Newell, vice-president of the Royal College of Paediatrics and Child Health, said he broadly agreed with the concluslons of the researchers but stressed that poor weight gain was something that needed to be monitored closely, “I would encourage parents to use growth charts but if measurements show your baby is smaller than averager it may be completely normal, ”he said.What can we know from the findings of the research?
| A．All the cases of slow weight gain in the first months of the babies’ lives are caused by the same reason |
| B．Slow-growing babies will have the same height and weight with their peers by age13 |
| C．Many cases of children whose growth don’t meet the growing standard curve cannot be treated as abnormal |
| D．The findings won’t cause parents’ anxiety so monitoring a baby’s growth from his/her birth is unnecessary |
Which of the following statements is true according to the passage?
| A．It’s important to monitor a baby’s weight and height gain for new parents |
| B．New parents should feel anxious about their baby’s weight and height gain |
| C．Researches still couldn’t find the reasons for slow weight gain |
| D．All the children’s weight and height became normal by age 13 |
What does the underlined word in the fourth paragraph mean?
| A．Making sure something is certain to be true |
| B．Making someone calmer and less anxious |
| C．Confirming something is to happen again |
| D．Being sure that someone can be attracted |
Which of the statements would Dr Simon Newell agree to?
| A．To some degree, growth charts can help parents monitor their babies’ weight gain |
| B．It’s abnormal for babies are smaller than average |
| C．He agreed with the researchers completely |
| D．Babies’ weight gain can only be monitored and measured by using growth charts. |
The writer wrote this passage in order to
| A．tell us how to help babies grow faster |
| B．explain why babies are gain weight slowly |
| C．report on the findings of a research |
| D．reduce the anxiety of some parents |
As rain begins to fall from the clouds, it is very pure. However, as it falls through the air it dissolves some of the gases in the air ,It also collects bits of dust and microbes(微生物)that are floating in the air, When the rain reaches the ground it begins to pick up more dust and dirt, Many kinds of mineral substances dissolve in the water ,Sand and nud cannot dissolve in water.
Since water is so important to us, it is very important that the water we use should be clean , Otherwise, we might get some of the diseases that are carried by water Many microbes are harmful ,They are so small that we cannot see them ,These microbes must be removed or killed before the water is not clean, people who drink this water may get these diseases, Thus , to provide people with clean water, the government purifies the water.
Purification is a long process and consists of three stages: storing ,purifying and distributing ,The first stage is storing , Man-made lakes called reservoirs are used for this purpose ,Water from the rains ,other lakes, streams and rivers is collected in the reservoirs ,This water is usually dirty and muddy.
In the second stage shich is purifying , water from the reservoirs is filtered in a special pond, Stones, sand and other unwanted tiny things are caught in it, After that, tiny microbes are still present in the water ,These microbes are removed by “airing ”the water and by adding a chemical substance called chloring(氯)to the water ,This kills all the microbes in the water ,A fter this the water can be safely used for drinking.
The third stage is the distribution of the purified water to homes ,hospitals, offices ,factories and other places, This is done through a network of pipes of various sizes, These pipes must be make of a suitable material.From Paragraph 1, we can learn that
| A．Rain has contained gases when it forms in the clouds |
| B．Dust and microbes are dissolved in rain when rain falls on the ground |
| C．The closer rain is to the ground, the more impure things it contains |
| D．Sand and mud are things rain collects when it falls through the air |
According to Paragraph 2 ,the following statements are wrong except that
| A．All the microbes in water are harmful so water must be purified |
| B．some diseases can spread through drinking water if it is not clean |
| C．Water is safe to drink if only harmful microbes are removed from it |
| D．it is the govrnment’s responsibility to make drinking water clean |
What can we know about man-made lakes?
| A．It is used through the whole process of purification |
| B．Only rain water can be collected and stored in it |
| C．Water collected can be stored and filtered in it |
| D．Water from them contains a lot of impure substances |
What is the function of the chemical substance chlorine?
| A．to air the water | B．to catch tiny things |
| C．to kill microbes | D．to remove harmful gases |
What is probably this passage?
| A．A news report | B．A book review | C．A magazine article | D．A school paper |
Two years ago ,Hannah Mighall ,then 13, survived a great white shark attack on Tasmania’s north-east coast, but despite the terrible scars ,the shy yet courageous teenager is determined to get back into the water.
It’s been a long journey back for the brave girl, whose life was changed forever as she was on her surfboard 60 metres offshore at Binalong, Bay ,Tasmania.
Her cousin ,32-yeaf-old syb Mundy ,was surfing nearby, “Suddenly, everything went quiet ,”Hannah ,now15,recalls of the day she almost lost her life, “I look down into the water and noticed a dark shadow under my board I knew instantly it was a shark.”
As Syb watched in horror, the five-metre shark put hundreds of sharp teeth onto Hannah’s right leg,throwing her from her board, “I was attached to my leg-rope as the shark stared to pull me under the water”,She shakes, “I was lying on my back with one leg under the shark’s body and the other still in its jaws.”
Syb desperately punched (猛击)the shark’s nose and reached out to grab Hannah as the monster bit a huge chunk（大块）from the surfboard, “I was still attached to my board and was dragged back under the water again,”she says ,When she came up for air, Hannah dog paddled(爬泳)to Syb’s board and he dragged her from the water to lie on his back ,”We looked down and saw the shark circling beneath us,”Hannah says.
Hannah was rushed to the hospital by helicopter ,She needed more than 400 stitches(针)on her leg and spent two weeks in hospital.
Modest about her remarkable courage, Hannah owes her survival to Syb’s bravery and the fact that great whites,despite their reputation as man-eaters, typically don’t target humans ,After the attack ,Hannah earned the Sea Shepherd award for courage for speaking in defence of the shark “I was in his territory, she wasn’t in mine,”she smiles.Which of the following can be the best title of the passage?
| A．Courage Can Beat Any Difficulty |
| B．How to Escape from a Shark Attack |
| C．A Survival from a Shark Attack |
| D．Sharks Can Target Humans Sometimes |
What is the correct order of the following events happening to Hannah?
a、She was bit and pulled by the shark d、She was dragged from the water
b、She swam to Syb’s board e、She was pulled under the water again
c、She came up to take a breath f、She noticed the change of the things around her
| A．f,a,b,e,c,d | B．f,a,e,c,b,d | C．a,e,c,b,d,f | D．a,c,b,e,d,f |
From the passage, which statement is mentioned about Hanah?
| A．was so brave that this experience didn’t have any influence on her life |
| B．didn’t hesitate to get hack into the water to surf immediately she recovered |
| C．thought it is a common thing to be attacked by a shark in the ocean |
| D．didn’t blame the fact that sharks are known as man-eaters for her being attacked |
How was Hannah sent to the hospital.?
| A．She was went to the hospital by Syb |
| B．She was went to the hospital by local people |
| C．She was went to the hospital by helicopter |
| D．She was went to the hospital by the Sea Shepherb |
The reason why Hannah was awarded is that .
| A．She was brave to speak for the shark although she was severely injured by it |
| B．She successfully escaped from a dangerous situation because of her courage |
| C．She was courageous enough to go deep into sharks’territory and survived |
| D．She has been determined to go hack into the sea where there are sharks |
I had the meanest mother in the whole world. While other kids ate candy for breakfast, I had to have cereal, eggs or toast. While others had Cokes and candy for lunch, I had to eat a sandwich. As you can guess, my supper was different from the other kids’ too. But at least, I wasn’t alone in my sufferings. My sister and two brothers had the same mean mother as I did.
My mother insisted upon knowing where we were at all times. She had to know who our friends were and where we were going. She insisted if we said we’d be gone an hour, then we should be gone one hour or less -- not one hour and one minute. And she always insisted upon us telling the truth. Now you can see how mean she was.
The worst is yet to come. We had to be in bed by nine each night and up at eight the next morning. We couldn’t sleep till noon like our friends. So while they slept - my mother actually had the courage to break the Child Labor Law. She made us work. We had to wash dishes, make beds, and learn to cook. We had to wear clean clothes and take a bath every day. The other kids always wore their clothes for days. We reached the height of disgrace because she made our clothes herself, just to save money. I believe she laid awake at night thinking up mean things to do to us.
Through the years, things didn’t improve a bit. We could not lie in bed “sick” like our friends did, and miss school. Our marks in school had to live up to expectations. Our friends’ report cards had beautiful colors on them, black for passing, red for failing. My mother, being as different as she was, would be satisfied with nothing less than ugly black marks.
As the years rolled by, first one and then the other of us was put to shame. We graduated from high school. With our mother behind us, talking, hitting and demanding respect, none of us was allowed the pleasure of being a drop-out.
My mother was a complete failure as a mother. Out of four children, a couple of us attained some higher education. None of us have ever been arrested or divorced. Each of my brothers served his time in the service of this country. She forced us to grow up into God-fearing, educated, honest adults. I am now trying to raise my three children. I am filled with pride when my children call me mean. Why? Because now I thank God every day for giving me the meanest mother in the whole world.The author’s mother wanted her children to _________.
| A．do their best at school and be educated and respected citizens |
| B．be top students in school and graduate with honors |
| C．stop seeing her friends who pretended to be sick to skip classes |
| D．bring home colored report cards like her friends did |
Which of the following statements is TRUE according to the text?
| A．The author has a deep hatred for her mother. |
| B．The author’s mother set timetables for her children whenever they went out. |
| C．Some of the children weren’t able to go to college because of their mean mother. |
| D．As a parent, the author is following her mother’s example. |
It can be inferred from the passage that________.
| A．All the other kids at school studied better than the author. |
| B．The author worked hard and usually got good grades in studies. |
| C．Mother was punished for breaking the Labor Law. |
| D．The author’s family lived a miserable life. |
Our risk of cancer rises rapidly as we age. So it makes sense that the elderly should be routinely screened for new tumors (肿瘤) or doesn’t it?
While such tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly. With the percentage of people over age 65 expected to nearly double by 2050, it s important to weigh the health benefits of screening against the risks and costs of routine testing.
In many cases, screening can lead to additional examinations and operations to remove cancer, which can cause side effects, while the cancers themselves may be slow-growing and may not cause serious health problems in patients’ remaining years. But the message that everyone must screen for cancer has become so ingrained (根深蒂固的) that when health care experts recommended that women under 50 and over 74 stop screening for breast cancer, it caused a noisy reaction among doctors, patients and social groups.
It’s hard to uproot deeply-held beliefs about cancer screening with scientific data. Certainly, there are people over age 75 who have had cancers detected by routine screening, and gained several extra years of life because of treatment. And clearly, people over age 75 who have other risk factors for cancer, such as a family history or previous personal experience with the disease, should continue to get screened regularly. But for the rest, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy.
A recent study suggests that doctors start to make more objective decisions about who will truly benefit from screening—especially considering the explosion of the elderly.
It’s not an easy calculation to make, but one that makes sense for patients. Dr. Otis Brawley said, “Many doctors are ordering these tests purely to cover themselves from medical disputes. We need to think about the wise use of health care, which means making some difficult decisions with elderly patients, and going against the misguided belief that when it comes to health care, more is always better.”Routine cancer screening for the elderly people makes sense because ______.
| A．it is believed to contribute to a long life |
| B．it is part of their health care package |
| C．they are more sensitive about the health |
| D．they are in greater danger of tumor growth |
How do some researchers now look at routine cancer screening for the elderly?
| A．It adds too much to their medical bills. |
| B．They are doubtful about necessity. |
| C．It helps increase their life expectancy. |
| D．They think it does more harm than good. |
What is the traditional view about women screening for breast cancer?
| A．It is a must for adult women. |
| B．It applies to women over 50. |
| C．It is intended for young women. |
| D．It doesn’t apply to women over |
Why do many doctors advise routine screening for cancer?
| A．They want to take advantage of the medical care system. |
| B．They want to protect themselves against medical disputes. |
| C．They want data for medical research. |
| D．They want their patients to suffer less. |
What does the writer say is the general view about health care?
| A．Better care, longer life. |
| B．Prevention is better than cure. |
| C．Better early than late. |
| D．The more, the better. |