Read the article and select the best answer. Article: If you're looking for a fairly painless way to lose weight, researchers at Brigham Young University have a new solution for you: Put yourself on a regular sleep schedule. People who keep a regular sleep routine have a lower body fat than those who keep irregular sleep hours, says a new study. Led by Bruce Bailey, professor of exercise science, researchers followed 300 female college students aged 19 to 26, who were given activity trackers to watch their movements and activities, including waking and sleeping times . Researchers also measured their body composition before and after the one-week study period. What the researchers found: Body fat varied with sleep quantity. Women who slept between 8 and 8.5 hours a night had the lowest body fat. While those who slept less than 7 hours or over 9 hours had higher body fat. High quality sleep was associated with lower body fat while poor sleep was connected with higher body fat. Waking and going to sleep at the same time every day was most strongly linked with lower body fat. The difference in body weight was greater with more variation in sleep pattern. Women whose sleep patterns varied by 90 minutes a night had higher body fat than those whose sleep patterns varied by 60 minutes or less on average. The study followed up on a body of research conducted over the last few years that ties quality and quantity of sleep to weight loss and better weight control. While researchers don't know exactly how sleep schedules affect body weight and fat, other studies have shown that sleep has an effect on physical activity, appetite , and the hormones that control metabolism , and the signals that tell us we're full. Question: Which of the following about the study led by Bruce Bailey is true? Options: A: The participants included both females and males. B: The participants' activities were monitored through trackers. C: The participants' body composition were measured only after the study. D: The study was controlled by researchers during a long period time.
B

(Question)
Read the article and select the best answer. Article: Now, there is a growing movement to pay the students in American schools---in some cases, even just for coming to class. Students at one school in New Mexico can earn up to three hundred dollars a year for good attendance. In Baltimore, Maryland, high scores in state graduation tests can be worth more than one hundred dollars. And a New Jersey school system plans to pay students fifty dollars a week to attend after---school tutoring programs. Schools that pay students can be found in more than one---fourth of the fifty states. Other schools pay students with food or other rewards. Robert Schaefer is a public education director. He says paying students may improve performance in the short term, but students develop false expectations for the future. He sees a lack of long term planning in these programs because of the pressure on schools to raise test scores. Public schools need to show improvement under the education reform law. Low---performing schools may lose their federal money; teachers and administrators may lose their jobs. Often these schools are in poor neighborhoods where getting students to go to school can be a continual problem. Critics say paying students sends a message that money is the only valuable reward. But some students say it makes school more exciting. And some teachers have reported getting more requests for extra help. In two thousand four, the city schools in Coshocton, Ohio, launched a program. They wanted to see if paying elementary school students as much as one hundred dollars would help in passing the state exams. Now, Eric Bettinger of Case Western Reserve University (EUCWRU) has reported mixed results. Math scores increased, but only white students were able to get paid. And there was no evidence of higher scores in reading, social studies and science. Official will decide later this year whether to continue the program. Question: Paying students who show improvement in tests _ . Options: A: has been done in most American schools B: is becoming a growing practice in the USA C: is not very popular with teachers D: only aims at high scores at school
(Answer)
B

Ques: Read the article and select the best answer. Article: That "Monday morning feeling" could be a crushing pain in the chest which leaves you sweating and gasping for breath. Recent research from Germany and Italy shows that heart attacks are more common on Monday mornings and doctors blame the stress of returning to work after the weekend break. The risk of having a heart attack on any given day should be one in seven, but a six-year study helped by researchers at the Free University of Berlin of more than 2,600 Germans showed that the average person had a 20 per cent higher chance of having a heart attack on a Monday than on any other day. Working Germans are particularly not protected against attack, with a 33 per cent higher risk at the beginning of the working week. Non-workers, by comparison, appear to be no more at risk on a Monday than any other day. A study of 11,000 Italians proved 8 am on a Monday morning as the most stressful time for the heart, and both studies showed that Sunday is the least stressful day, with fewer heart attacks in both countries. The findings could lead to a better understanding of what is the immediate cause of heart attacks, according to Dr Stefan Willich of the Free University. "We know a lot about long-term risk factors such as smoking and cholesterol but we don't know what actually causes heart attacks, so we can't give clear advice on how to prevent them," he said. Monday mornings have a double helping of stress for the working body as it makes a rapid change from sleep to activity, and from the relaxing weekend to the pressures of work. "When people get up, their blood pressure and heart rate go up and there are hormonal changes in their bodies," Willich explained. "All these things can have an unfavourable effect in the blood system and increase the risk of a clot in the arteries which will cause a heart attack." "When people return to work after a weekend off, the pace of their life changes. They have a higher workload, more stress, more anger and more physical activity," said Willich. Question: To protect people from suffering from heart attack, doctors have paid much attention to _ . Options: A: people's working time B: people's living place C: people's diet and lifestyle D: people's nationalities
Ans: C

Read the article and select the best answer. Article: Earlier this year,my oldest daughter got braces on her teeth,and let's just say she did not go quietly into that dentist's chair.Fear and hate pretty much describe the days leading up to her first appointment. So when she finally walked out with shiny teeth,a sore mouth and a broken spirit,I told her I was proud of her and took her to Ben &Jerry's for an ice cream reward.Two weeks later,we returned to the scene of the crime.The dentist spent about 45 seconds checking her teeth before sending her on her merry way.Before I could start the car, she was placing her ice cream order.She was shocked when I told her that she wasn't going to get a reward every time we get her teeth checked. Clearly,she's not alone.According to some parenting experts,kids are easily addicted to a benefit--producing system of parental rewards and bribes--it's not all ice creams,candies and cool toys.Some parents are offering their children prizes to just let them sit down and behave in a restaurant--or sleep in their own beds--or score a goal in the next soccer game. While the experts agree that occasional awards are okay, the danger lies in the system's overuse.Kids quickly gain a sense of entitlement ,where they come to expect a big reward for every good thing that they do,no matter how small.To keep things in check,experts say parents should reduce the number of rewards they offer,make sure rewards match the behavior and explain the real benefits of behaving for the sake of behaving. Have you used bribery or a reward system with your kids? Was it successful? Do your kids expect more because of that system? Question: What does the author mean by saying"the scene of the crime"? Options: A: He/she doubted whether the dentist was skilled. B: He/she felt very sorry for his/her daughter's illness. C: His/her daughter suffered a lot from her illness. D: His/her daughter had a bad feeling for the dentist's.
D