Read the article and select the best answer. Article: Some people don't mind being fat. Other people can keep slim( ) without any effort. But a lot of people do put on too much weight and don't like it. The question is : what can they do about it? Some believe exercise can be helpful. But the trouble is that it only makes you want to eat more. You might sweat out a couple of pounds playing tennis or climbing a mountain, but you put it all back on again with a big steak or bread and jam. A helpful way is food - choosing. But what sort of food should you choose? Some believe that the less they eat, the slimmer they will be. They don' t eat anything until they become weak with hunger. Some stick to milk and bananas. You' 11 find you need a lot of bananas, and unless you live where they grow, they aren't cheap. Another theory says that if you eat things like hard - boiled eggs, apples with their skins on, and lean meat which are hard for your stomach to digest, the more you eat, the thinner you get. This is because you use up the fat in your body to get the energy to digest the food. For most of us these methods are too extreme . The simplest way is just to cut down on the carbohydrates; that means not eating bread, potatoes, cakes, sugar, rice , and so on and eating anything else you like. It' s straight -- forward and often quite effective. Still others like to be more scientific. They are calorie counters. They get a table which tells them that, for example, 100 grams of roast leg of lamb give you 330 calories and a 50 gram of Yorkshire pudding gives you 130 calories. Question: A calorie is a unit of _ . Options: A: weight B: power C: electricity D: heat
D

Read the article and select the best answer. Article: The World Health Organization(WHO)planned to study the relationship between the eating habits of the people and the disease.Two doctors were chosen to make the study. They flew to Africa south of the Sahara and during the next two months visited ten countries.They found that serious diseases of poor eating, often mistaken for other diseases, existed in all parts of Africa.The diseases were similar and could therefore all be named kwashiorkor .The diseased children are usually from one to four years old.As the illness progresses, the child's stomach becomes swollen by liquid collecting in the body.The skin changes colour and may break out in open sores.The hair changes colour and starts to fall out.The patient loses all interest in his surroundings and even in food, and becomes so weak that he wants to lie down all the time.Stomach liquids are no longer produced. The doctors reasoned that kwashiorkor was found in the young children of this age in many parts of Africa because of lack of milk or meat.Their mothers gave them foods full of starches instead of greatly needed proteins.They found that the addition of milk to the food of children suffering from kwashiorkor saved many lives. Question: From the passage we learn that kwashiorkor is a disease caused by _ . Options: A: poor living conditions B: lack of proteins in food C: much stomach liquids D: lack of food
B

Q: Read the article and select the best answer. Article: A group of swimmers has described how a group of dolphins protected them from a group of white sharks off the coast of New Zealand. The lifeguards were on a training swim when they came across a group of great white sharks before the dolphins raced in to help. The swimmers were surrounded by the dolphins for forty minutes before they were able to make them safety back to the beach. It was an uncomfortable experience as they were circled by a group of white sharks, which came within a couple of meters of them. Lifeguard Rob Howes was in the water with a colleague and his teenage daughter. He said around half a dozen dolphins suddenly appeared and forced them to gather together. The mammals swam in tight circles to create a protective wall between the white sharks and the lifeguards as the great white sharks were under the surface. The swimmers said the dolphins were extremely upset and repeatedly slapped the water with their tails as if to try to prevent the white sharks from attacking them. It's a day they'll never forget, especially for one who was on her first day as _ They have no doubt that the dolphins acted on purpose to protect them. Researchers have said that they're not surprised. A marine biologist insisted that dolphins, which are considered to be one of the most intelligent mammals, "like to help the helpless." Question: Which of the following can be the best title? Options: A: Dolphins Protect Swimmers from Sharks B: Sharks Protect Swimmers from Dolphins C: Lifeguards Protect Dolphins from Sharks D: Lifeguards Protect Sharks from Dolphins
A: A

Read the article and select the best answer. Article: One silly question I simply can't understand is "How do you feel?" Usually the question is asked of a man's action-- a man on the go, walking along the street or busily working at his desk. So what do you expect him to say? He'll probably say," Fine, I'm all right.", but you've put a bug in his ear. ---Maybe now he's not sure. If you have a good friend, you may have seen something in his face, or his walk, that he overlooked that morning. It starts him worrying a little. First thing you know, he looks in a mirror to see if everything is all right, while you go merrily on your way asking someone else. "How do you feel?" Every question has its time and place. It's perfectly acceptable, for example, to ask "How do you feel?" if you're visiting a close friend in hospital. But if the fellow is walking on both legs, hurrying take a train, or sitting at his desk working, it's no time to ask him that silly question. [:Z _ xx _ k.Com] When George Bernard Shaw, the famous writer of plays, was in his eighties, someone asked him, "How do you feel?" Shaw put him in his place. "When you reach my age," he said, "either you feel all right or you're dead." Question: The question "How do you feel" seems to be correct and suitable when asked of _ . Options: A: a man working at his desk. B: a person having lost a close friend. C: a stranger who looks worried. D: a friend who is ill.
D