Read the following article and select the best answer. Article: 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. Question: What can we learn from the text? - Not smoking or drinking guarantees happiness. - Teens with flooding hormones can not be happy. - Playing sports can decrease teen's unhappiness. - Unhappiness can certainly result in smoking and drinking.
Playing sports can decrease teen's unhappiness.

Read the following article and select the best answer. Article: 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 . Question: From the passage we learn that many people don't know that - health can be improved by drinking plenty of water - caffeinated drinks can provide the water people need - better skin can result from intake of much water - the production of urine can cause water to lose
caffeinated drinks can provide the water people need

Q: Read the following article and select the best answer. Article: 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. Question: The two youths stood in a dark shop doorway because _ . - they had nothing to do - they were homeless - they meant to rob somebody - they were guarding the shop
A: they meant to rob somebody

Q: Read the following article and select the best answer. Article: Thoughts claim our attention continuously, and waste our time and energy on unimportant and useless matters. They actually rule our life. We have become so used to this slavery, that we take it for granted, and have become unconscious of this habit, except on certain occasions. While breathing, we do not need to pay attention to each inhalation and exhalation. We become conscious of the process of breathing only when we have some difficulty with breathing, such as when our nose is blocked, due to a cold, or when we are in an unventilated room. It is the same with thinking. We become conscious of the constant onslaught of our thoughts, and of our inability to calm them down, only when we need to concentrate, solve a problem or study. We are also aware of them when we have worries or fears. Look at the following familiar situation. You need to study something for an exam. You sit comfortably on the sofa with the book in your hands and start reading. After a while you feel hungry and go to the kitchen to eat something. You return to read, and then hear your people talking outside. You listen to them for several moments and then bring your attention back to the book. After a while you feel restless and switch on the radio to listen to some music. You continue to read for a little while, and then remember something that happened yesterday, and you start thinking about it. When you look at your watch, you are amazed to find out that one complete hour has passed and you have hardly read anything. And at this time, you feel you're thinking. This is what happens when one lacks concentration. Imagine what you could have accomplished if you could control your attention and focus your mind! Question: When can you feel you are thinking? - While breathing. - While not reading. - When you need to concentrate. - When you waste your time.
A: When you need to concentrate.