A new study suggests that the way to weight loss may be clear.A couple of glasses of water before meals help dieters lose about 5 pounds more than those who do not drink water.While drinking water before a meal may fill a person up,the contents of their meal are important as well.Should a person be eating a low-fat diet or a lowcarbohydrate   diet? Or does it matter at all? Recent research suggests that one diet isn't any better than the other.A few weeks before the water study,another concluded that lowfat and lowcarbohydrate diets tied in weight loss.While the lowcarbohydrate dieters did show a slight increase in good cholesterol   and a reduction in blood pressure,there was not much difference in the dieters'weight loss.The point here is that the person had to stick to the diet.What helps a person see a diet through? It could be body type. A study published in the Journal of the American Medical Association,as reported byTimemagazine,found that body shape is the key to which diet a person will be able to stick with.Apples are people who carry most of their weight above the belt,while pears carry their weight around their hips  .Apple types were more likely to be highinsulin secretors   who respond more strongly to carbohydrates in their bodies.They lost the most weight on a lowcarbohydrate diet.Pears were lowinsulin secretors who lost the same amount of weight on both diets.Unstable   insulin levels can create stronger hunger senses,causing the apple types to go off their diet plans. All of these studies again come down to choosing the diet that helps you eat less.The bodytype diet does make some sense as men are more likely to be apple types,with larger stomachs,and tend to do well on higherprotein diets,while women,who tend to carry weight around their hips,find themselves drawn to the lowfat diets.The reality is if a diet is failing you try another one.A plan you can't,or won't,stick to will never work,no matter what the research says. If you want to lose weight but don't know what diet suits you,you can always   _  . A) drink a few cups of water after each meal B) drink a few cups of water before each meal C) eat plenty of pears D) eat plenty of apples
B


Travel is exciting and summer is a busy period for holiday travel. Many people will travel great distances in airplanes, cars or other vehicles. Experts say people should know about other health problems that can strike when traveling by air. One of these is a condition called hypoxia  . It results from a lack of oxygen to the brain. Experts say the body begins losing oxygen minutes after an airplane leaves the ground. The air pressure in a plane during flight is lower than at sea level. This makes it more difficult for the body to effectively use the same amount of oxygen as it would on the ground. Fewer oxygen molecules   cross the tissues   in the lungs and reach the bloodstream. The result is a five to twenty percent drop in the amount of oxygen in the blood. This reduces the amount of oxygen that reaches the organs of the body. One effect of this lack of oxygen to the brain is a headache. When this happens, the heart attempts to _ by beating harder and faster. This can make the traveler feel tired. These signs of hypoxia are not dangerous in a healthy person. But a drop in oxygen level can cause a health emergency in people with heart or lung problems. They might lose consciousness or even suffer a heart attack. Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body's ability to use oxygen. So they suggest that people not drink alcohol or smoke cigarettes either before or during a flight. They also say persons with heart or lung problems should seek advice from their doctors before flying. Why should passengers not smoke or drink before flying? A) They weaken the body's ability to use oxygen. B) Smoking may pollute the air inside the airplane. C) Drinking alcohol may raise one's blood pressure. D) Drinking is forbidden at the airport.
A


WUHAN - A 72-year-old woman, Wang Yulan, has started legal procedures against Carrefour after she was falsely accused of stealing in the supermarket. Wang's lawyer Wen Jun said they filed a lawsuit   at the Donghu district court, making two demands. First, Wang wants Carrefour to make a public apology and the apology letter should be put up in the Carrefour store or in the media. "We also demand 50,000 yuan in compensation   for my wife's psychological injuries," Wang's husband, Yan Fucun, said, "We don't mean to _ money from Carrefour, but asked for it as a recognition of respect. Besides the money spent on lawsuit costs, I will donate the rest to charity." Wang earlier said she went to the store's Guanggu branch to buy cereal. She picked up 20 packs of a particular brand and was given another four as gifts by a saleswoman. However, when she arrived at the checkout, the cashier insisted Wang pay for all 24 packs, which led to an argument. The saleswoman later denied she said the extra packs were free. A store supervisor led Wang to an office, accused her of theft and had her sign a form and pose for photos. Wang and her husband returned to the store the next day with the local media to demand an explanation. Carrefour China then apologized for the incident on its Sina micro blog, saying the managers and staff members involved have visited Wang's home and apologized. The company also sent three apology letters to Wang in the following three days. Eric Legros, president of Carrefour China, said,"We made a mistake and we apologized four times. Four times, you know. And Carrefour will not do anything more about it." Wen Jun said the supermarket's management came with risks. For instance, Wen said the company would offer employees money if they caught a thief in the store. "I hope this case will be a warning for the staff who want to get money by such an immoral   method," Wen said. The purpose of this passage is to   _ A) warn customers of the trap in buying B) report an incident and related information C) appeal to customers to defend their own rights D) support Wang in dealing with the incident

B