Q: Read the following article and answer the question. Article: More and more scientific experiments prove that physical exercise can reduce the dangers of some illnesses in middle-aged persons.Exercise strengthens the heart muscle,reduces blood pressure and help to prevent muscles from changing into fat.Physical exercise is just as important for children. Exercise and food affect growing speed in young lab animals.Baby mice start running as soon as they are big enough to use an exercise wheel in their cage.If they get extra food and run a lot,they will grow as much as 1.5 times bigger than normal. The same differences in growing speed might be found between active and inactive children.Physical exercise helps active children grow faster than inactive children.One experiment shows that the brains of the mice that had enough exercise weighed about 3%more than those of the mice that did not exercise The mice that exercised are much quicker to learn doing new exercise than the mice that did not exercise. The results of the experiments suppose the theory that exercise can help babies learn to talk and walk sooner than expected. The good effects of physical exercise are not limited to children and middle-aged people.Exercise continues to be an important part of our lives after we grow old.For example,people over 50 years old begin to lose calcium from their bones,which get weaker and can break easily.Physical exercise,however,helps to strengthen the bones and to prevent them from losing calcium.Of course,old people can take medicines to prevent themselves from suffering from losing calcium.But the medicines they take increase the chance of developing some kind of cancer .So physical exercise is a much safer treatment . Question: Active children_than inactive children. Answer: | OPTIONS:
- enjoy walking more
- are cleverer and healthier
- are stronger but more foolish
- are cleverer but weaker
A: are cleverer and healthier

Q: Read the following article and answer the question. Article: Indoor public spaces such as restaurants, workplaces, hospitals and public transport are supposed _ from Jan 9 in China. On that day five years ago, China approved the World Health Organization's Framework Convention on Tobacco Control. However with the deadline days away, the government still hasn't come up with a clear message for the ban. An editorial from "China Daily" urges China to speed up its effort to ban smoking in public indoors. Referring to numbers from the Chinese Center for Disease Control and Prevention, the articles says if China fails to reduce tobacco consumption, the number of people killed by cigarettes will double by 2025 and three times by 2050, which is about 1.2 million now every year. This would cut the productivity of the work force and places a heavy burden on the country's healthcare system. The article says China has let an opportunity slip to change these statistics for the better. The momentum , however was not strong enough to make the country's public places smoke free. The editorial suggests that China should strengthen its effort to tax heavily smokers as there are no national regulations on banning smoking in public areas. Question: What can learn from the passage that_. Answer: | OPTIONS:
- there are no national regulation on banning smoking in the public.
- The momentum was not too strong to make the country's public places smoke free.
- by 2025, the number of people killed by cigarettes will about 1.2 million.
- "China Daily" urges China to speed up its effort to ban smoking in public.
A: there are no national regulation on banning smoking in the public.

Q: Read the following article and answer the question. Article: The monitor "watches" deceleration (=slow down) and distance from a light - and "guesses" which cars are likely to break the Highway Code. Most importantly, the software can provide two seconds' warning if someone else is about to shoot across a crossroads - enough time for other drivers to hit the brakes. Jonathan How, the Professor of Aeronautics and Astronautics at MIT, says "smart" cars of the future may use the system to help drivers foresee and avoid potential accidents. The researchers tested the algorithm on data collected from an intersection in Virginia, finding that it accurately identified potential violators within a couple of seconds of reaching a red light -- enough time, according to the researchers, for other drivers at an intersection to be able to react to the threat if alerted . Compared to other efforts to model driving behavior, the MIT algorithm brought fewer false alarms, an important advantage for systems providing guidance to human drivers. The researchers report their findings in a paper that will appear in the journal IEEE Transactions on Intelligent Transportation Systems. Question: We can learn from the passage that the algorithm _ . Answer: | OPTIONS:
- has been in use on a large scale.
- can send out a warning a few minutes earlier.
- must be connected with a powerful computer.
- is still in a theoretical stage.
A: is still in a theoretical stage.

Q: Read the following article and answer the question. Article: TEENSGIVING is an exciting event where hundreds of New York City teens gather together annually for a remarkable day of community service.This year, TEENSGIVING in SPRING 2013, participants will once again belter New York City and impact thousands of lives! When is TEENSGIVING in SPRING 2013? SUNDAY, APRIL 25,2013 Where is TEENSGIVING? All over New York City.Everyone will meet at the 92nd Street Y (92nd and Lexington) at 9:00 AM for the event kick-off.Then, all TEENSGIVING volunteers will disperse (BW) across the city to work with our partnering agencies where they will make a HUGE difference (and have fun!). Who participates in TEENSGIVING? Hundreds of teenagers from around the city.Teens come from the 92ndStreet Y, various city schools, youth groups, and organizations in the area.In addition, many adult volunteers (ages 21 and older) will donate their time to TEENSGIVING in SPRING 2013. What projects do participants do at the agencies? Sample projects include painting park benches, planting gardens, visiting and playing with underprivileged children, assembling craft kits for children in hospitals, assisting at animal shelters, working at soup kitchens, delivering meals and celebrating with families at homeless shelters. Do I get anything for participating in TEENSGIVING? Yes! Everybody benefits! Teen volunteers will receive *6 hours* of community service credits, good towards honor society, high school graduation and college application requirements.Adult volunteers will be "thanked" with a tight breakfast, a gift certificate for their troubles, and the satisfaction of helping our city's youth contribute to their community.In addition, all teen and adult volunteers will receive a cool TEENSGIVING in SPRING 2013 T-shirt. This sounds awesome! How do I register for TEENSGIVING in SPRING 2013? Interested teens and/or adults should e-mail the TEENSGIVING Coordinator Josh Hyman at jhyman@92Y.org (subject: TEENSGIVING) to receive more information and to register for this... Question: If a teen wants to participate in TEENGIVING, he can _ . Answer: | OPTIONS:
- write a letter to his lawyer for permission
- contact Josh Hyman by e-mail
- call the president of his school
- go there directly without any registration
A: write a letter to his lawyer for permission