Nowadays people are troubled by the violence that spreads throughout the media. Movies, television and video games are full of gunplay and bloodshed, and one might reasonably ask what’s wrong with a society that presents videos of violence as entertainment.
Viewing large amounts of violent television and video games may well contribute to violent behavior in certain individuals. The trouble comes when researchers downplay uncertainties in their studies or overstate the case for causality（因果关系）. Skeptics were dismayed several years ago when a group of societies including the American Medical Association tried to end the debate by issuing a joint statement: “At this time, well over 1,000 studies… point to a causal connection between media violence and aggressive behavior in some children.”
Freedom-of-speech advocates accused the societies of catering to politicians, and even disputed the number of studies (most were review articles and essays, they said). When Jonathan Freedman, a social psychologist at the University of Toronto, reviewed the literature, he found only 200 or so studies of television-watching and aggression. And when he weeded out “the most doubtful measures of aggression”, only 28% supported a connection.
The critical point here is causality. The alarmists say they have proved that violent media cause aggression. But the assumptions behind their observations need to be examined. When labeling games as violent or non-violent, should a hero eating a ghost really be counted as a violent event? And when experimenters record the time it takes game players to read “aggressive” or “non-aggressive” words from a list, can we be sure what they are actually measuring? The intention of the new Harvard Center on Media and Child Health to collect and standardize studies of media violence in order to compare their methodologies, assumptions and conclusions is an important step in the right direction.
Another appropriate step would be to tone down the criticism until we know more. Several researchers write, speak and testify quite a lot on the threat posed by violence in the media. That is, of course, their privilege. But when doing so, they often come out with statements that the matter has now been settled, drawing criticism from colleagues. In response, the alarmists accuse critics and news reporters of being deceived by the entertainment industry. Such clashes help neither science nor society.Why is there so much violence shown in movies, TV and video games?
| A．Showing violence is thought to be entertaining. |
| B．Something has gone wrong with today’s society |
| C．Many people are fond of gunplay and bloodshed. |
| D．There is a lot of violence in the real world today. |
What is the skeptics’ view of media violence?
| A．Violence on television is fairly accurate reflection of real-world life. |
| B．Most studies exaggerate (夸大) the effect of media violence on the viewers. |
| C．A causal relationship exists between media and real-world violence. |
| D．The influence of media violence on children has been underestimated. |
The author uses the term “alarmists” to refer to those who _________.
| A．use standardized measurements in the studies of media violence |
| B．initiated the debate over the influence of violent media on reality |
| C．insist on a direct link between violent media and aggressive behavior |
| D．use appropriate methodology in examining aggressive behavior |
The underlined phrase “weeded out” in Paragraph 3 most probably means _________.
| A．got rid of things that are not good | B．removed unwanted parts from something |
| C．picked out things that are useful | D．took away unnecessary details of a report |
What does the writer think of the debate concerning the relationship between the media and violence?
| A．He more than agrees with the views held by the alarmists. |
| B．It should come to an end since the matter has now been settled. |
| C．The past studies in this field have proved to be misleading. |
| D．More studies should be conducted before conclusions are drawn. |
In its early history, Chicago had floods frequently, especially in the spring, making the streets so muddy that people, horses, and carts got stuck. An old joke that was popular at the time went something like this: A man is stuck up to his waist in a muddy Chicago street. Asked if he needs help, he replies, "No, thanks. I've got a good horse under me."
The city planner decided to build an underground drainage (排水) system, but there simply wasn't enough difference between the height of the ground level and the water level. The only two options were to lower the Chicago River or raise the city.
An engineer named Ellis Chesbrough convinced me the city that it had no choice but to build the pipes above ground and then cover them with dirt. This raised the level of the city's streets by as much as 12 feet.
This of course created a new problem: dirt practically buried the first floors of every building in Chicago. Building owners were faced with a choice: either change the first floors of their buildings into basements, and the second stories into main floors, or hoist the entire buildings to meet the new street level. Small wood-frame buildings could be lifted fairly easily. But what about large, heavy structures like Tremont Hotel, which was a six-story brick building?
That's where George Pullman came in. He had developed some house-moving skills successfully. To lift a big structure like the Tremont Hotel, Pullman would place thousands of jackscrews (螺旋千斤顶) beneath the building's foundation. One man was assigned to operate each section of roughly 10 jackscrews. At Pullman's signal each man turned his jackscrew the same amount at the same time, thereby raising the building slowly and evenly. Astonishingly, the Tremont Hotel stay open during the entire operation, and many of its guests didn't even notice anything was happening. Some people like to say that every problem has a solution. But in Chicago's early history, every engineering solution seemed to create a new problem. Now that Chicago's waste water was draining efficiently into the Chicago River, the city's next step was to clean the polluted river.The author mentions the joke to show ______.
| A．horses were fairly useful in Chicago |
| B．Chicago's streets were extremely muddy |
| C．Chicago was very dangerous in the spring |
| D．the Chicago people were particularly humorous |
The city planners were convinced by Ellis Chesbrough to_______.
| A．get rid of the street dirt |
| B．lower the Chicago River |
| C．fight against heavy floods |
| D．build the pipes above ground |
The underlined word "hoist" in Paragraph 4 means "_______".
| A．change | B．lift |
| C．repair | D．decorate |
What can we conclude about the moving operation of the Tremont Hotel?
| A．It went on smoothly as intended. |
| B．It interrupted the business of the hotel. |
| C．It involved Pullman turning ten jackscrews. |
| D．It separated the building from its foundation. |
The passage is mainly about the early Chicago's ______.
| A．popular life styles and their influences |
| B．environmental disasters and their causes |
| C．engineering problems and their solutions |
| D．successful businessmen and their achievements |
| Forget Cyclists, Pedestrians are Real Danger We are having a debate about this topic. Here are some letters from our readers. ■Yes, many cyclists behave dangerously. Many drivers are disrespectful of cyclists. But pedestrians are probably the worse offenders. People of all ages happily walk along the pavement with eyes and hands glued to the mobile phone, quite unaware of what is going on around them. They may even do the same thing while crossing a road at a pedestrian crossing or elsewhere. The rest of us have to evade (避让) them or just stand still to wait for the unavoidable collision. The real problem is that some pedestrians seem to be, at least for the moment, in worlds of their own that are, to them, much more important than the welfare of others. ——Michael Horan ■I love the letter from Bob Brooks about cyclists (Viewpoints, May 29). I am afraid they seem to think they own the roads. I was walking across Altrincham Road one morning when a cyclist went round me and on being asked what he was doing he shouted at me. The government built a cycle lane on the road but it is hardly used. The police do nothing. What a laugh they are! The cyclists should all have to be made to use the cycle lanes and wear helmets, fluorescent (发荧光的) jacket and lights at night and in the morning they should pay some sort of tax and be fined for not wearing them. ——Carol Harvey ■Cyclists jump on and off pavements (which are meant for pedestrians), ride at speed along the pavements, and think they have a special right to go through traffic lights when they are on red. I was almost knocked down recently by a cyclist riding on the pavement when there was a cycle lane right next to him. Other road users, including horse riders, manage to obey the rules so why not cyclists? It's about time they had to be registered and insured, so when they do hit a pedestrian or a vehicle, or cause an accident, at least they can be treated and there might be an opportunity to claim. ——JML Write to Viewpoints of the newspaper. |
Michael Horan wrote the letter mainly to show that _______.
| A．drivers should be polite to cyclists |
| B．road accidents can actually be avoided |
| C．sine pedestrians are a threat to road safety |
| D．walking while using phones hurts one's eyes |
Carol Harvey suggests that cyclists should _______.
| A．be provided with enough roads |
| B．be asked to ride on their own lanes |
| C．be made to pay less tax for cycling |
| D．be fined for laughing at policemen |
What is a complaint of JML?
| A．Very few drivers are insured. |
| B．Cyclists ride fast on pavements. |
| C．Pedestrians go through red traffic lights. |
| D．Horse riders disrespect other road users. |
The underlined word "they" in the third letter refers to ______.
| A．accidents | B．vehicles |
| C．pedestrians | D．cyclists |
The three letters present viewpoints on _______.
| A．real source of road danger |
| B．ways to improve road facilities |
| C．measures to punish road offences |
| D．increased awareness of road rules |
Below is some advice on how to prevent cancer:
1. Eat Blueberries
Aside from being a healthy and delicious snack, blueberries contain pterostilbene, which has important colon（结肠） cancer-fighting prosperities. But wait, it gets better. Blueberries also offer a large dose of vitamins C (14 milligrams per cup). So at breakfast, try to take in a cup and a half of blueberries in your cereal or yogurt, or mixed with other berries.
2. Drink Pomegranate（石榴）Juice
The deep red juice of the pomegranate contains polyphenols, isoflavones and ellagic acid, which together create a powerful anticancer mixture. Most recently, researchers from the University of Wisconsin at Madison has discovered that 16 ounces of pomegranate juice per day also may inhibit the growth of lung cancer.
3. Relax
Feeling stressed or worried? Find ways to relax and you may reduce your chances of developing cancer. Purdue University researchers tracked 1,600 men over 12 years and found that half of those with high levels of worry died during the study period. Only 20 percent of the optimists died before the study were completed, while 34 percent of the extremely anxious men died of some type of cancer. Instead of stressing about the past or future, focus on the present and relax!
4. Take Selenium（硒）
Selenium is well known for its cancer-fighting properties. In a study of almost 1,000 men, researchers from the Journal of the National Cancer Institute found that when men with the lowest initial levels of selenium in their bodies received a daily supplement over a-4-year period, they remarkably cut their prostate（前列腺） cancer risk by 92 percent. However, it is possible to get too much of a good thing, so monitor your intake of selenium-containing supplements, Brazil nuts, tuna, meats and grains carefully.
5. Eat Sushi（寿司）
Seaweed may not be your idea of a great snack, but it is high in fiber, calcium and iron, and dry, roasted seaweed sheets used in sushi provide the additional benefits of vitamins A and C. Sushi rolls are also high in protein. So don’t skimp（节省）on the Sushi!
6. Breathe Clean Air
There’s no question that secondhand smoke kills. A recent American Journal of Public Health study showed that nonsmokers working in smoky places had three times the amount of carcinogen（致癌物质） in their urine（尿） than nonsmokers working in smoke-free locations. What’s worse, their levels of the carcinogen rose 6 percent for every hour worked. Nine states have banned smoking in all workplaces, bars and restaurants. The message is clear: Do whatever you can to avoid the cloud of smoke.
7. Break a Sweat
Even a small amount of exercise can offer major cancer-fighting benefits. In a study of 29,110 men published in The International Journal of Cancer, men who exercised just once a week had a percent lower risk of metastasis(转移性) prostate cancer than men who didn’t work out at all. The better the frequency, duration and intensity of the exercise, the bigger the reduction in risk, according to the study.To prevent yourself from catching colon cancer, you should eat ________ as often as possible.
| A．sushi | B．blueberries |
| C．pomegranates | D．Vitamin D |
A person is very likely to catch some type of cancer if _________________.
| A．he is very fond of exercise every day. |
| B．he is addicted to drinking |
| C．he is always feeling extremely stressed or worried |
| D．he likes to have meals in restaurants |
_____________________________ will remarkably reduce the risk of men’s prostate cancer.
| A．Having a proper supplement of selenium |
| B．Drinking a cup of pomegranate juice every day |
| C．Breathing fresh air now and then |
| D．Taking exercise at least once a week |
If you want to keep cancer away, it is completely important to ______.
| A．have a daily supplement of vitamins B and C |
| B．try to ignore the secondhand smoking |
| C．take in as many selenium-containing supplements as possible |
| D．have exercise as often as possible |
With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species. That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”The aim of “Noah’s Ark” project is to _______.
| A．make efforts to clone the endangered pandas |
| B．transfer the nuclear of one animal to another |
| C．collect DNA of endangered animals to study |
| D．save endangered animals from dying out |
According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.
| A．available panda eggs | B．host animals |
| C．qualified researchers | D．enough money |
The best title for the passage may be _______.
| A．China’s Success in Pandas Cloning |
| B．Exploring the Possibility to Clone Pandas |
| C．The First Cloned Panda in the World |
| D．China —the Native Place of Pandas Forever |
From the passage we know that _______.
| A．Kraemer and his team have succeeded in cloning a dog |
| B．scientists try to implant a panda’s egg into a rabbit |
| C．Kraemer will work with Chinese scientists in clone researches |
| D．about two thousand of species will probably die out in a century |
When I first told people I was going to work in Cameroon, the most common reaction was：“Why？” The second was：“It’s in Africa；you’ll die！” The third: “Where is that？”So let me give some answers. I was offered a job that looked interesting in a part of the world I’d never been to before. I’d also long had an interest in Africa, so I decided it was time to find out the reality. A small amount of research showed that in more than 40 years since gaining independence, Cameroon has been a peaceful country with no wars. Not only were there no wars but Cameroon is a food exporter to the region.
Now, after three years, I can say that these have been the healthiest years of my life! No malaria or any of the other frightening diseases you read about when Africa is mentioned .The worst thing that ever happened to me was a bout of food poisoning-once.
So what is it like to teach here? Well not surprisingly, not so different from anywhere else. Most students come to us with a bit of English in their heads. Cameroon is a bilingual country with French and English as official languages, while there are also close to 200 local ethnic languages in a country of 16 million people. French is the dominant language, spoken by about eighty percent of the population.
The local school system is very traditional and somewhat strict. Perhaps not surprisingly when there can be up to 150 students in the classroom ( of which maybe 30 have the books, and there are probably seats for 70)．Like anywhere, students appreciate it if you know a bit about their country, and not just Roger Milla (top scorer of the 1990 World Cup, in case you’re wondering). It helps if you know the names of the ten provinces, know who the first president was, or can say a word in a local language.
So in conclusion: Cameroon isn’t just football. Nor is it war, poverty and disease. It’s just life and people, like anywhere else.
On hearing the writer’s decision, most people__________.
| A．admired him |
| B．considered it as a joke |
| C．didn’t understand him |
| D．laughed at him |
According to the passage, Cameroon is__________.
| A．peaceful after liberation |
| B．a country full of diseases |
| C．a poor country, especially lack of food |
| D．quite different from others in education |
What can we infer from the passage?
| A．Food export may lead to many frightening diseases. |
| B．Most students in Cameroon do not need books. |
| C．Cameroon is not as bad as people commonly believed. |
| D．There must be a lot of people suffering from food poisoning. |
Which language is spoken by about eighty percent of the population in Cameroon?
| A．local dialect | B．French |
| C．An ethnic language | D．English |
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