Teenagers are often a difficult group. With all those hormones flooding their bodies, they can be moody, unpredictable, and tend to make uncertain choices. But however confusing their teenage years are, kids can still be generally happy, depending on their lifestyle choices. According to a new research by British scientists, teens who don't smoke, drink only moderately or not at all, and who don't eat much junk food are likely to be happier than other teens. The study looked at 40,000 British families and came up with some interesting findings. For example, kids who never drank alcohol were up to six times more likely to report higher levels of happiness than kids who drank. And teens who smoked were five times less likely to rate high on happiness charts compared to kids who don't smoke. Same goes for diet and physical activity. The more fruits and vegetables kids eat, and the more hours they spend playing sports, the happier they are. Now, of course this doesn't mean that not smoking or drinking, and playing sports guarantees happiness. It could be that kids who have happy character tend to be more active and less addicted to drinking or smoking. And it could equally be the case that kids who are unhappy are more related to drinking and smoking and eating junk food. Other studies have shown that exercise is a proven way to treat anxiety and depression. Future studies may support the idea that other healthful behaviors, including refraining from smoking, drinking, and eating too much junk, can avoid sadness and increase happiness, too. What can we learn from the text? A) Not smoking or drinking guarantees happiness. B) Teens with flooding hormones can not be happy. C) Playing sports can decrease teen's unhappiness. D) Unhappiness can certainly result in smoking and drinking.
C
It has become a certain belief among the public-drink at least eight glasses of water a day to improve health and well--being.Bottled water companies often repeat it to increase their sales but it is actually a silly idea. There is no evidence to prove the advantages of drinking eight glasses of water a day,scientists say. The misunderstanding is caused from the suggestion that adults should drink 2.5 liters of water daily,which was highlighted(,)by the British Medical Journal in December.The important part of the suggestion that most of this quantity of water is contained in prepared foods,however,is usually ignored. U.S.researchers who reviewed the evidence concluded that most people do not need to worry about the amount of water they drink every day.Besides drinking water,they will be getting plenty of liquid in other ways.Caffeinated drinks such as tea,coffee and cola,and alcohol can help reach the daily total if they don't drink too much,though these drinks help the production of urine . Less well known are the dangers of drinking too much water,causing water poisoning,low salt levels and even death. The review of research by Dan Negoianu,from the University of Pennsylvania,found that not a single study included the suggestion of drinking eight glasses of water a day.Although one small study suggested that drinking water could result in fewer headaches,the results were not very important.However,the benefits of drinking some water to prevent a pain in head after drinking too much alcohol are.separately,proved to be true. No studies showed any advantages to the color1 of the skin because of the increased water taken into bodies.Dehydration can make skin less pleasant,but there was no clear evidence to support the idea that water helps people keep a youthful appearance.The researchers also found no evidence that drinking lots of water does some good to the body's organs . From the passage, we know that the suggestion about drinking eight glasses of water a day _ . A) causes some serious diseases B) is misunderstood by people in fact C) has enough scientific evidence to support it D) was published by the British Medical Journal
B
Q: One night, Mrs. Riley, an elderly woman, was walking along a dark London street. She was carrying her handbag in one hand and a plastic carrier bag in the other. There was nobody else in the street except two youths. They were standing in a dark shop doorway. One of them was very tall with fail hair, the other was short and fat with a beard. The youths waited for a few moments, and then ran quickly and quietly towards Mrs. Riley. The tall youth held her from behind while the other youth tried to seize her handbag. Suddenly, Mrs. Riley threw the tall youth over her shoulder. He crashed into the other youth and they both landed on the ground. Without speaking, Mrs. Riley struck both of them on the head with her handbag and walked calmly away. The two surprised youths were still sitting on the ground when Mrs. Riley crossed the street towards a door with a lighted sign above it. Mrs. Riley paused, turned round, smiled at the youths and walked into the South West London Judo Club. The two youths stood in a dark shop doorway because _ . A) they had nothing to do B) they were homeless C) they meant to rob somebody D) they were guarding the shop
A: C
Q: 1During the First World War, some Americans indirectly benefited because of the war. With two million white men fighting in Europe and no new immigrants entering the country, many jobs in the United States became available to blacks and women for the first time. 2Both groups proved their ability to do any kind of job. Women became railway conductors, brick layers, and factory workers. Their presence in traditionally male workplace produced many problems. Men were annoyed by women's higher productivity and willingness to work for lower pay. Working mothers were often criticized for leaving their families. But many women welcomed the responsibilities. "It was not until our men were called overseas," said one woman bank executive, "that we make any real onslaught on the realm of finance, and became tellers, managers of departments, and junior and senior officers." 3Women who did not take jobs helped in the war effort in other ways. They made uniforms, rolled bandages, and campaigned for the sale of Liberty Bonds to help finance the war. 4American manufacturers offered jobs to large numbers of black Americans for the first time as a result of the war. Most factories were located in the North. To take advantage of these new job opportunities, many black families moved from their homes in the South to the Northern cities such as Pittsburgh, Cleveland, Buffalo, Chicago, and Detroit. 5White Americans were of two minds about the role of black Americans in the war effort. On the one hand, black workers' ability to learn new jobs quickly and do them well strengthened the home front, and the black men's fighting ability helped the Allies win the war. However, many whites did not want to acknowledge that blacks were capable, effective workers. White soldiers returning from the war had no desire to compete for jobs with blacks on equal terms. At the same time, many blacks were not willing to a lesser role once the war had ended. Which of the following shows the right structures of the above passage? A) 1-23-45 B) 1-2-3-4-5 C) 1-23-4-5 D) 123-4-5
A: A