Q: One in every five young people has a sleep problem, so you're not alone; Getting enough sleep has become as important as eating vegetables and exercising regularly. It's very important for your body. Most young people only get seven hours of sleep each night, when they actually need nine hours. And making up for lost sleep during the week by sleeping in on weekends doesn't really work. In fact, sleeping late on weekends may actually do you more harm than good, if you have sleep problems. What happens if you don't get enough sleep? If your sleep problem continues for a few nights, you could suffer serious problems. Lack of sleep can affect learning and memory. Worse , if your sleep difficulties last a long time , that could lead to anxiety or depression . Therefore, you've got to have some healthy sleep habits. Below are some suggestions: * GO TO BED AT THE SAME TIME--including weekends , if possible . * WAKE UP AROUND THE SAME TIME EVERY MORNING . When you sleep late just one morning during the week, it may disturb your body clock. This will make it hard for you to sleep that night. * DO SMOETHING REALXING before going to bed . * EXERCISE DURING THE DAY . Don't exercise right before going to bed. * AVOID DRINKING ALCOHOL. Alcohol makes you excited. This prevents you from falling asleep or wakes you up during the night. * DON'T SMOKE . Smoking is always bad for the body. Smoking before bedtime keeps you awake. If trying these tips over a couple of weeks does not help you, speak to your doctor. Do not take any sleeping pills without first asking your doctor. Many have strong side effects. Which of the following is TRUE according to the passage? A) You'll no longer have your sleep problem if you try the tips. B) Sleeping late on weekends can make up for lost sleep . C) Exercising in the evening will help you get to sleep D) Sleep problems are serious among young people.
A: D

Q: Fat on human body is distributed in two different ways. Some fat people have a large chest and no waistline , looking rather like apples. Others are fatter below the waist, looking more like pears. Doctors in Cambridge, England have been examining the relationship between health and fat distribution. They find that the pear-shaped fat people have fewer problems than the apple-shaped people. What seems to be most important is not just how much fat you have but where you have it. The doctors measured the apple-shaped women and pear-shaped women and examined them with X-ray scanners (X). Human beings have two types of fat, one is outside fat that is the fat below the skin and the other is inside fat that lies inside the body. Using the X-ray scanners, the doctors found that the "apples" have a large amount of inside fat. If this inside fat is much more than outside fat, it will probably cause health problems such as obesity . The best treatment for obesity is to reduce the inside fat. But unfortunately diet treatment simply makes an apple-shaped person into a smaller apple and a pear-shaped person into a smaller pear. At the moment there is no effective way of reducing the inside fat. The most important thing about fat people seems to be A) the amount of fat they have B) the place where they have the fat C) the amount of the outside fat they have D) which type of the fat people they belong to
A: B

Q: There is one difference between the sexes on which every expert and study agrees: men are more aggressive than women. It shows up in 2-year-olds. It continues through school days and persists into adulthood. It is even constant across cultures. And there is little doubt that it is rooted in biology. If there's a woman's trait which is the same as men's aggressiveness, it's what social scientists refer to as the result of "education". Feminists have argued that the caring nature of women is not biological in origin, but rather has been forced into women by a society that wanted to keep them in the home. But the signs that it is at least partly inborn are too numerous to ignore. Just as tiny infant girls respond more readily to human faces, female toddlers learn much faster than males how to pick up nonverbal cues from others. And grown women are far more skilful than men at interpreting facial expressions: A recent study by University of Pennsylvania brain researcher Ruben Gur showed that they easily read emotions such as anger, sadness and fear. The only such emotion men could pick up was disgust. What difference do such differences make in the real world? Among other things, women appear to be somewhat less competitive--or at least competitive in different ways--than men. At the Harvard Law School, for instance, female students enter with qualities just as outstanding as those of their male peers. But they don' t qualify for the well-known Law Review in proper numbers, a fact some school officials owe to women' s discomfort in the incredibly competitive atmosphere. Students of management styles have found fewer differences than they expected between men and women who reach leadership positions, perhaps because many successful women deliberately imitate men. But an analysis by Purdue social psychologist Alice Eagly of 166 studies of leadership style did find one difference: Men tend to be more "autocratic"-making decisions on their own--while women tend to consult colleagues more often. Studies of... Which of the following is true of women's nurturing nature according to the passage? A) It is not inborn in any sense. B) It is inspired by women's families. C) It is caused by social prejudice. D) It is partly biological in origin.
A: D

Q: It's not quite a rat. Nor is it a squirrel, or a mouse. It's definitely a rodent , and it's also a brand-new family of mammals. The locals of the Southeast Asian country of Laos call the creature a kha-nyou (ga-nyou). The kha-nyou have long body hair, short legs, and a hairy tail less thick than a squirrel's. They're vegetarians living in the rocky hills of Laos, and they come out at night, but for more information, you'll have to ask the Lao people. "It was for sale on a table next to some vegetables. I knew immediately it was something I had never seen before," said Robert Timmins, a researcher for the Wildlife Conservation Society. Timmins was working in Laos to stop people from selling endangered animals when he spotted the species. Criminals who trade illegal wildlife can make a lot of money, but they also push the animals closer to disappearing from the planet. The kha-nyou live in karsts, or rough rock. Mark Robinson, a scientist with the World Wildlife Foundation, set out with Lao villagers to find a few more of the rodents for study. They climbed onto a karst, trapped with rice, and caught several. "To find something so unusual in this day and age is just extraordinary," said Timmins. "For all we know, this could be the last remaining animal family left to be discovered." It's a big deal to discover an entirely new family of animals. Humans, for instance, belong to the same family as great apes, chimpanzees, and gorillas. So even though kha-nyous look like rats, they're really very different. The last time scientists discovered a new family of mammals may have been in the 1970s, when they found new bats in Thailand. Timmins seems to have the gift for finding new animals in Laos--he discovered a new species of rabbit there in 1999. Scientists call the kha-nyou Laonastes aenigmamus, which means "mysterious mouse that lives among the stones."But if that's too hard, Timmins and Robinson suggest you call them "rock rats". It implies in the passage that _ . A) finding a new animal family in Southeast Asia is easy B) finding a new animal family in modern time is extremely rare C) in Southeast Asia new species of animals are often discovered D) animals that look like the same are of the same family
A: B