NEW YORK (AP) — In a report, 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 that the growth wasn’t higher than it had been expected.

　　“Yes it’s doubled, but it’s still the case that there’s a big chunk of Internet users who have never done this simple act of connecting their names with search engines,” she said. “Certainly more and more people have become aware of this, but I don’t know it’s necessarily kept pace with the amount of content we post about ourselves or what others post about us.”

About 60 percent of Internet users said they aren’t worried about the extent of information about themselves online, although they are increasingly concerned over how that data can be used.

Americans under 50 and those with more education and income were more likely to self-Google---in some cases because their jobs demand a certain online persona(形象).

Meanwhile, Pew found that 53 percent of adult Internet users admit to looking up information about someone else, famous people not included.

　　Often, it’s to find someone they’ve 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 not harmful, 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(破产) and divorce proceedings. A similar number have searched for someone else’s photo.

　　Pew also found that teens were more likely than adults to limit the range of people who can see their information at an online hangout like Facebook or News Corp.’s MySpace, contrary to conventional wisdom.

　　“Teens are more comfortable with the applications in some ways, (but) I also think they have their parents and teachers telling them to be very careful about what they post and who they share it with,” Madden said.

Mary Madden was surprised at the result that ______.

       A. fewer and fewer adult Internet users are looking for information about themselves

       B. the number of adult Internet users looking for information about themselves has doubled

       C. more adult Internet users should have looked for information about themselves

       D. so many people don’t know how to connect their names with search engines

According to the report some people haven’t looked for information about themselves because ______.

       A. they are not rich enough to get a computer

       B. they are not well educated

       C. they don’t know they can look for their own information on the Internet

       D. they think it unnecessary to look for their own information on the Internet

Which group of people are more likely to look for their own information on the Internet?

       A. Teens. B. Women.     C. The old.     D. The educated.

People look for others’ information on the Internet mainly to ______.

       A. see what they are doing    B. find someone they have lost touch with

       C. have a look at their photos       D. know their personal affairs

 

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses relate to diet and forty percent of cancer relates to the diet as well, especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures.

That food is connected with illness is not a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic  additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.　　

1. What is the best possible title of the passage?

　 A. Drug and Food             　B. Cancer and Health

　C. Food and Health              D. Health and Drug

2. Which of the following statements is NOT true?

　 A. Drugs are always given to animals for medical reasons.

　 B. Some of the additives in our food are added to the food itself and some are

given to the living animals.

　 C. Researchers have known about the potential dangers of food additives for over

thirty-five years.

　 D. Food may cause forty percent of cancer in world.

3. How has science done something harmful to mankind?

　A. Because of science, diseases caused by polluted food haven’t been virtually

eliminated.

　 B. It has caused a lack of information concerning the value of food.

　 C. Because of the application of science, some potentially harmful substances

have been added to food.

　D. The scientists have preserved the color of meat, but not of vegetables.

4. What are nitrates used for?

　 A. They preserve flavor in packaged foods.

　 B. They preserve the color of meats.

　 C. They are the objects of research.

5. The word ‘carcinogenic’ most nearly means ‘_________’.

　 A. trouble-making                 B. color-maintaining

　 C. money-making                 D .cancer-causing

 

One thing the tour books don’t tell you about London is that 2,000 of its residents are foxes. They ran away from the city about centuries ago after developers and pollution moved in. But now that the environment is cleaner, the foxes have come home, one of the many wild animals that have moved into urban areas around the world.

“The number and variety of wild animals in urban areas is increasing,” says Gomer Jones, president of the National Institute for Urban Wildlife, in Columbia, Maryland. A survey of the wildlife in New York’s Central Park last year tallied the species of mammals, including muskrats, shrews and flying squirrels. A similar survey conducted in the 1890s counted only five species. One of the country’s largest populations of raccoons (浣熊) now lives in Washington D.C., and moose (驼鹿) are regularly seen wandering into Maine towns. Peregrine falcons(游隼) dive from the window ledges of buildings in the largest U.S. cities to prey on (捕食) pigeons.

Several changes have brought wild animals to the cities. Foremost is that air and water quality in many cities has improved as a result of the 1970s pollution-control efforts. Meanwhile, rural areas have been built up, leaving many animals on the edges of suburbs. In addition, urban wildlife refuges (避难处)have been created. The Greater London Council last year spent￡750,000 to buy land and build 10 permanent wildlife refuges in the city. Over 1,000 volunteers have donated money and cleared rubble from derelict lots. One evening last year a fox was seen on Westminster Bridge looking up at Big Ben.

    For peregrine falcons, cities are actually safer than rural cliff dwellings (悬崖栖息地). By 1970 the birds had died out east of the Mississippi because the DDT had made their eggs too thin to support life. That year, scientist Tom Cade of Cornell University began raising the birds for release in cities, for cities afforded abundant food.

Cities can attract wild animals without turning them harmful. The trick is to create habitats where they can be self-sufficient but still be seen and appreciated. Such habitats can even be functional. In San Francisco, the local government is testing different kinds of rainwater control basins to see not only which ones retain (保持) the cleanest water but which will attract the most birds.

1.The first paragraph suggests that ________.

A. environment is crucial for wildlife           

B. tour books are not always a reliable source of information

C. London is a city of fox　　           

D. foxes are highly adaptable to environment

2.Which of the following is NOT a reason that wildlife is returning to the cities?

A. Food is plentiful in the cities.          

B. Wildlife is appreciated in the cities.

C. Wildlife refuges have been built in the cities

D. Air and water quality has improved in the cities

3.The underlined word “tallied” in Para. 2 means __________.

A. distinguished       B. described       C. counted      D. excluded

4.It can be inferred from the passage that _________.

A. Londoners are putting more and more wild animals into their zoos.

B. Londoners are happy to see wild animals return to their city

C. Londoners are trying to move wild animals back to the countryside

D. Londoners have welcomed the wild birds, but found foxes a problem

5.What is the passage mainly about?

A. Wildlife returning to large cities        

B. Foxes returning to London

C. Wild animals living in zoos           

D. A survey of wildlife in New York

 

As computer games get to look more lifelike, it seems that their violence is spilling over into real life. It is reported that some dozens of children have been murdered since 1997, which has been linked to all obsession (着迷) with violent video games. Recently the parents of a 14-??year-??old murder victim in the UK blamed the killer's obsession with the game Manhunt, causing a government review of legislation (立法) to protect children.

Psychologists think there may be many reasons why violent games are more harmful to children than violent movies. Firstly, players are actively involved in violence, and may begin to see using weapons as second nature. Secondly, violent games provide repetitive aggressive (侵犯的) experiences that are rewarded by more killing.

Many studies have shown that people who play violent games regularly are more likely to show high levels of aggression. For instance, in 2000, scientists in Iowa State University found that people who played violent games were more likely to admit involvement in aggressive behaviors, including assaults (侵犯人体罪) or robberies.

A study of 13 to 14-??year??-old children showed that more than half had played games recommended only for over??18s. The more violent the games they played, the more they considered physical aggression to be acceptable. Besides, children who play violent games are more prone (有做……倾向的) to arguing with teachers and fighting.

Experimental studies have also hinted at a possible link. In one, scientists asked a group of students to play a violent game, while another group played the non??violent. Those who played the violent games were faster to react to aggressive words subsequently (随后) flashed on screen.

We may infer from the first paragraph that 　　　　.

A. computer games have little to do with violence in real life

B. Manhunt has resulted in the death of one of its plays

C. lifelike computer games are forbidden in the UK

D. legislation to protect children in the UK still needs improving

Violent games are more harmful to children than violent movies because 　　　　.

A. violent movies are not so attractive to children

B. the viewers can't take part in violent movies

C. violent movies are not popular with children

D. children can win awards in violent games

What will be probably discussed in the paragraph following the passage？

A. Further research on the harm of violent games.

B. Further differences between violent game and non??violent games.

C. Ways to protect children from violent games.

D. The result of more experimental studies.

What would be the best title for the passage？

A. Games and Murder

B. Should Computer Games become lifelike？

C. Legislation, effective or not？

D. Violent Games and Non??violent Games

     Apparently，we are safe neither at home nor in the business office.We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

　　Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

　　These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

　　We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

What is the main idea of the first paragraph?

　　A.The air we breathe in is harmful.

B.Chemicals are released in the running water.

C.Chemicals are added to the drinking water.

　　D. The water in everyday use is unsafe.

.In Paragraph 2, the underlined sentence means that .

　　A. homes and offices should be aired often

　　B. any pollution should be taken into consideration

　　C. bathing should be done with caution

　　D.we should prevent any pollution from doing harm to us

What is the purpose of the passage?

　　A.To call on us to guard our water.

　　B.To show us that no place is like home.

　　C.To make us aware of the pollution around us.

　　D.To argue that neither homes nor offices are safe.