Read the following article and select the best answer. Article: Researchers found that compared with teens who spent much of their free time in front of TV sets, those who were physically active often had higher self-respect, better grades and were less likely to have risky behavior like taking drugs, smoking, or drinking.The findings, based on a national survey of nearly 12,000 middle and high school students, were published in a journal. "Across the board, children who engaged in any kind of activity were belier off than kids who watched a lot of TV," said study co author professor Penny Gordon Larsen of the University of North Carolina. Other studies have linked certain content of television programs, such as violence and sex, to children's behavior.But beyond this issue, Gordon-Larsen said that kids who spend hours watching TV "miss opportunities" to develop skills, learn teamwork and have other experiences that their more active peers benefit from. That doesn't mean, however, that kids have to be on the football team. The study found that some activities like skating and skateboarding----which adults sometimes frown upon----were also related to better self respect and less risk taking. That skaters were better behaved than TV watchers might come as a surprise to some adults who consider these teens to be bad, according to Gordon-Larsen.Skateboarding is forbidden in many public areas, and some communities oppose building skating parks.But if kids who like to skate have nowhere to do it, "it's a shame," said Gordon-Larsen. Not only should parents encourage their kids to engage iii the physical activities they enjoy, she said, but schools and communities should also do more to create opportunities for children to be active. Question: It can be inferred from the passage that_. - kids are not expected to be active by some parents - professor Penny is a famous writer and journalist - skateboarding is popular in schools and communities - kids are not encouraged to join the football team
kids are not expected to be active by some parents

Read the following article and select the best answer. Article: Boris Worm of Dalhousie University in Nova Scotia ,prefix = st1 /Canada, led the international team that did the study . Professor Worm says species have recently been disappearing from oceans at increasing speed . At this rate , he says , all seafood species could collapse could collapse by 2048 . Other studies have also warned about the dangers of overfishing and the effects on ocean environments . But not everyone thinks the oceans are likely to be empty in fifty tears . Some scientists said parts of the world do have problems , but others are doing a good job of protecting fish populations . Government officals in several countries with large fishing industries also questioned the research . The study appeared earlier this month in Science magazine . The researchers say damage to oceans affects not only fish populations but also the productivity of ecosystems . These complex systems help control water quality . The scientists say the loss of different kinds of sea life appeared to increase the f fish kills and beach closures from harmful algae growth . The scientist examined the results of thirty-two experiments and observed forty-eight protected areas . They also looked at records of catches worldwide . They studied records from the United Nations Food and Agriculture Organization from nineteen fifty to two thousand three . And they examined archeological information and other historical records for twelve coastal areas . That research back over a thousand years . Boris Worm says the findings were , in his words , " beyond anything we suspected . " But he also said the situation is not too late to correct . He said that with good fisheries management , some species could completely recover in three to ten years . Question: The conclusion of the research led by Boris Worm is _ . - unbearable - unbelievable - doubtful - convincing
convincing

Read the following article and select the best answer. Article: Wearing seat belt is,of course,the first step to safe driving.These additional measures might also save your life. Count to three.Keeping up enough space between your car and others is extreme1y necessary.Jim Clark,a California driving instructor,suggests a least amount of three seconds'following distance.To figure this,pick an object on the roadside ahead.When the car in front of you passes it,start counting one-thousand-one,one-thousand-two,one-thousand-three.If you get to that object before you reach one-thousand-three,you don't have three seconds of following time --- time needed to keep away from accidents. Let followers pass."If someone's driving after you,get out of his way,"Clark advises."You're better of being safe than right." Expect the worst.In a study,the Federal Highway Administration found that 68 percent of drivers do not come to a complete stop at stop signs.When you're driving and see someone come near to a stop sing,assume the person's not going to stop. And when you stop at a crossing and another car comes near with its turn signal on,don't take it true that the driver will turn.Instead,wait until he turns.He may have had the signal on for miles. Stay outside.In crowd,multilane traffic,drive in either the outside--left or outside--right lane."That allows you somewhere to go if a problem develops,"traffic expert Francis Kenel says."If you're in the middle,all you can do is to pause from time to time." Question: When you finish counting"one-thousand-three",you have . - driven one thousand and three metres - kept three seconds'distance from other cars - counted a lot of numbers - kept a long distance from the object
kept three seconds'distance from other cars

Read the following article and select the best answer. Article: An Announcement It was a small town which lay by the coast.Most people there lived by catching fish.The hurricanes often struck the area from July to October.Some of the people died on the sea when their boats were blown over by the high winds.So they paid much attention to the weather forecasts.They were afraid to meet with the hurricanes when they were catching fish on the sea.Each of the families had a radio and people always took them with themselves and listened to them at any time. It was September.A hurricane attacked the town one night.Plenty of trees were pushed over and all the electric and telephone lines were broken.People couldn't watch TV,or call their friends,or go to work.To their anger,they couldn't listen to the weather forecasts the Town Radio Station broadcast.The food and fresh water would soon be short and the patients couldn't be given medical care--no medicine could be carried there.People didn't know what would happen and they looked anxious. On the fourth day they read an announcement on the Town Weekly.It was written,"Recently we have to stop the weather forecast because of the bad weather.We usually get the forecasts from the airport.But the roads are all blocked by the fallen trees and stones.Whether or not we'll be able to broadcast the weather forecast tomorrow depends on the weather!" Question: The people in the town often took radios with themselves because _ . - they felt lonely when catching fish on the sea and listened to the weather forecasts - they were interested in the weather forecasts - they couldn't watch TV on the sea - they hoped to listen to some good news
they were interested in the weather forecasts