*Question*
Children and teenagers who spend lots of time in front of screens---especially TVs---are easier to get more weight as they grow, according to a new study. The findings agree with the research suggesting all that inactive sitting and always watching advertisements may lead to poor eating habits. Researchers used results from a long-term study of children who took part in the surveys every two years. Children were between ages 9 and 16 when the study started. Out of 4,300 girls in the study, 17 percent were overweight or obese . Twenty-four percent of the 3,500 boys were also above a healthy weight. The surveys included questions about their height and weight as well as how much time they spent watching TV and DVDs and playing computer and video games. From one survey to the next, each one-hour increase in children's daily TV watching was in connection with an increase of about 0.1 points on a body mass index (BMI) , which measures weight in connection with height. There's an increase of about half a pound in weight per extra hour of TV. "The weight of the evidence is so strong that television watching is connected with unhealthy changes in weight among youth," says Jennifer Falbe, who led the study while at the Harvard School of Public Health in Boston. "It's important for parents to know that all the obesity-causing screens really should be limited in their children's lives." Falbe says. "When children watch TV, there are many food advertisements on TV that might lead them to eat a cookie or drink a soft drink." What's more, she says, "they can get into a hibernating state on the sofa, even if children are sitting down while playing a computer game." According to the study, one extra hour screen time will cause children about _ poundfatter. A) 0.1 B) 0.5 C) 0.3 D) 0.7
**Answer**
B

*Question*
The way we get about has a deep influence on the way we live-affecting where we set up home, work and holiday. So what changes might come in the way we get around? What big ideas are out there, and do they have any chance of coming true? Personal Air Travel The idea: flying cars Developments in light small plane technology will make it possible for everyone to own what are, in fact, flying cars. They will have closed cabins, heating, stereos and room for two people. You will take off from a field near your home and fly to towns and cities. After landing, you will take off the fixed wing and continue your journey by road just as if you were traveling by car. Fuel efficient engines and the advantage of being able to travel in the sky will keep costs and the environmental influence down. Flying for Fun The idea: Jet Packs The idea was a hit when a stuntman flew around on one during the opening ceremony of the 1984 Los Angeles Olympics, which was very successful. You'll be able to use the equipment-roughly the size of two scuba tanks fastened to your back-for short journeys. They will be handy for cleaning hard-to-reach windows, arriving in style at a party and shopping. Taxis The idea: driverless taxis These computer-controlled taxis will take you wherever you want along a fixed route, whenever you want to go. For the price of one person's bus fare, several people can ride at speeds of up to 25 mph, and there will be fences to guard against accidents. There will be little, if any, wait for the use of the taxis, which will leave from stations and will be used by prepaid cards. The taxis, which will travel on a 1.5 m-wide track, will use 75% less energy per passenger than a car and 50% less than a bus. As for driverless taxis, we can infer that _ . A) we can go wherever we want in them B) they will be both convenient and safe C) it costs more to take them than to take ordinary cars D) they will be operated by computers as well as by people
**Answer**
B

*Question*
All right! Enough cookies,cola, and chips! It seems that junk food is all that the children want to eat these days.Television controls their tastes.The kids see well-known personalities eating potato chips, candy and other processed food, and they want to be like their heroes.How do they do it?They eat the same food. I wish there were more characters like old Popeye , the sailor, who ate spinach and not French fries. Now I don't expect my children to eat healthy food because I like brown rice, beans, and fresh vegetables. I'm glad to cook traditional meals of meat and potatoes for them. I really can't be too upset with the kids because most adults aren't careful about what they eat. The other night, my wife and I went to a party where there was plenty to drink but very little for us to eat. They served hot dogs and hamburgers. I can't eat hot dogs, with all those preservatives , and hamburgers are filled with chemicals so that they look better. Besides the meat, they had sugar-filled cookies and cake, and of course, chips. I don't want the world to change because of me, but I think people should realize that there are alternatives to eating meat. They always tell me that I probably don't get my essential proteins. I feel better than ever and I'm sure that it's because I'm a vegetarian . I would really like to see more television advertisements which show the benefits of good, healthy, natural food. According to the passage, it seems that _ . A) canned food is the only one that the kids enjoy most. B) the children like to have fried chicken only. C) the kids prefer to have cold drinks, not junk food D) the children like nothing better than junk food: cookies and chips
**Answer**
D

*Question*
Mary Moe may look like an average grandmother.But she is not.She just learned how to fly an airplane,a dream she has had since she was a little girl.But Mary Moe could not find time to make her dream come true.At age 34,she was just too busy to think about flying a plane.Lessons were costly.Everything seemed to be working against Mary.So her dream had to wait. Mary Moe has done a lot during the past 91 years.For much of that time,she wanted to fly,but never had the chance--until now. Ms.Moe learned about Wish of a Lifetime, a non-profit organization.Its goal is to change the way our society thinks about aging and older adults.Sally Webster works for the group.She said Ms.Moe's wish is one of hundreds they receive each year. Wish of a Lifetime helps older people to enjoy a dream.It also sends the message that it is never too late for a dream.But Ms.Webster says it also wants to send another message to society that older Americans can achieve things just like younger Americans can. Susie Danick also believes in this goal.She founded TAD Relocation,a business that helps senior citizens when they move.Ms.Danick gave $5,000 to the Wish of a Lifetime to help seniors realize a dream.Mary Moe was one of them. Mary Moe received three flying lessons.And on the big day of her first flight,her family and friends all came to cheer her on.Mary's success made everyone around her excited and proud.It was just a great event,a great day.Flying teacher David Waksberg says she was very calm,which is always important when you're flying. It is never too late to spread your wings and try something new.You are never too old to try to make your dreams come true. What can we infer from the goal of Wish of a Lifetime? A) Older adults can not make their dream come true. B) Americans feel and think about aging properly. C) The old may be supposed to achieve nothing. D) Young Americans treat older people unfairly.
**Answer**
C