Doctors say obesity,also known as severe overweight,is a complex condition.A doctor may advise medical interventions in addition to changes in behavior.But experts say the more successful weightloss plans include a wellbalanced diet and exercise. People who want to avoid weight gain have to balance the number of calories they eat with the number of calories they use.To lose weight,you can reduce the number of calories you take in,or increase the number you use,or both.Experts at the National Institutes of Health say to lose weight,a person should do some moderate or intensive physical exercise most days of the week.This could include fast walking,sports or strength training. A recent study looked at four of the most popular dieting plans in the United States.Researchers at Stanford University studied more than three hundred overweight women,mostly in their thirties or forties.Each woman went on one of the four plans:Atkins,The Zone,Ornish or LEARN.The women attended diet classes and received written information about the food plans.At the end of a year,the women on the Atkins diet had lost the most,more than four and a half kilograms on average. Christopher Gardner led the study,reported in the Journal of the American Medical Association. He said the Atkins diet may be more successful because of its simple message to lower the intake of sugar.Also,he said the advice to increase protein in the diet leads to more satisfying meals. But last week,another report suggested that only a small minority of people have longterm success in dieting.Researchers at the University of California found that most dieters regained their lost weight within five years.And often they gained back even more.But those who kept the weight off generally were the ones who exercised. Which one of the following is the best title for this passage? A) Successful Weightloss Plans B) Four Popular Dieting Plans C) What Is the Atkins Diet? D) Few People Fail in Losing Weight
A
Who Owns the Moon? Within the next ten years, the U. S., China, Israel, and a crowd of private companies plan to set up camp on the moon. So if and when they plant a flag, does _ give them property rights? A NASA working group hosted a discussion this week to ask: Who owns the moon? The answer, of course, is no use. The Outer Space Treaty, the international signed by more than 100 countries, states that the moon and other celestial bodies are the province of all mankind. No doubt that would annoy all of the people throughout the ages, like monks from the Middle Ages, who have tried to claim the moon was theirs. But ownership is different from property rights. People who rent apartments, for example, don't own where they live, but they still hold rights. So with all of the upcoming missions to visit the moon and beyond, space industry thought leaders are seriously asking themselves how to deal with a potential land rush. " This is a very relevant discussion right now. We've got this wave of new lunar missions from around the world," said William Marshall, a scientist in the small-spacecraft office at NASA, but who spoke this week at an event hosted by NASA's Co Lab, a collaborative public-private working group. He was speaking from his personal interest and not on behalf of the agency. To be sure, the United States aims to send astronauts back to the moon by as early as 2015, in a mission that would include a long-term settlement. China and Israel, among others, are also working on lunar projects. And for the first time, several private groups are building spacecraft to land on the moon in an attempt to win millions of dollars in the Google Lunar X Prize. Some participants say that they plan to gain some property rights in the mission. We can infer from the passage that _ . A) it's a waste of time to work on the lunar project B) " The Outer Space Treaty" forbids private groups to land on the moon C) all mankind has the right to land on the moon D) whenever you come to the moon, you'll get some property rights on it
C
Q: Relationships in general have gone downhill because of two factors:technology and our demanding drive for excitement. Body language, especially eye contact, is very important to a relationship. With one glance we can tell the mood of a close friend, if they are happy or sad. Thus, visual contact has a major impact on the amount of understanding we have with another person and the amount of connection that can be achieved. However, when the telephone, email and message come into play, all of that human interaction is lost. We have increasingly less human contact and start lacking social skills because of a lack of communication. Technology greatly influences our standpoint on how fast we think everything needs to be done. If you put a dollar in the soda machine, you expect the bottle to move forward and fall down to the bottom. You can' t count how many times you' ve _ the machine if it went too slow for your expectations. You wanted instant results, immediate fulfillment. Another shot against healthy relationships is everyone ' s demanding need for excitement. Society in general has increased its expectations for excitement. Little kids spending time playing outside together now replace that with hours of playing video games alone at home. On the weekends we seize every minute with " exciting" activities, rushing from one to the next. The effect on relationships from all these activities is that they take on more concern and that we have no patience for each other. Gradually we distance ourselves from our loved ones. What can be the best title of the passage? _ . A) Relationships and Technology B) Technology and Excitement C) What Distance Our Relationships D) Gestures Affect Relationships
A: C
*Question*
Billie Holiday was one of the greatest jazz singers in America. Her life was just a mixture of success and tragedy. Her singing expressed her experiences and feelings. Billie Holiday was born Eleanora Fagan in 1915 in Baltimore, Maryland. Her parents were Sadie Fagan and Clarence Holiday. They were young when their daughter was born. Their marriage failed because Clarence Holiday was often out. He traveled as a musician with some of the earliest jazz bands and inspired his daughter. Sadie Fagan cleaned people's houses to make a living. But she could not support her family with the money she earned. So she moved to New York City where the pay was higher. She left her daughter in Baltimore with one of her distant relatives. The young girl Eleanora Fagan changed her name to Billie, because she liked a movie star, Billie Dove. The talented Billie Holiday loved singing. She sang and listened to music whenever she could. In one place near her home there was a machine that played records. The building was a theater where many famous singers also performed their newly-made songs for free. Billie cleaned floors and did other jobs for the theater so that she could listen to the records. It was there that young Billie first heard the records of some famous black American blues artists of the 1920s. she heard Bessie Smith sing the blues. And she heard Louis Armstrong play the horn. Both musicians had a great influence on her. Billie Holiday once said, "I do not think I'm singing. I feel like I am playing a horn. _ I hate straight singing. I have to change a tune to my own way of doing it. That is all I know." Who might originally have had an influence on Billie Holiday's career in music? A) Sadie Fagan B) Clerence Holiday. C) Bessie Smith. D) Louis Armstrong
**Answer**
B