Q: I'm taking a test and have to guess the right answer to the question after the article. Article: To prevent the deserts coming near, China has planted billions of trees---to replace destroyed forests and as barriers against the sand. This isn't a cure, though, say experts, as thirsty trees can make the problem worse by taking in groundwater. "Planting tress is one way, but it isn't that simple. It doesn't solve the basic issue of water resources," says Wu Bo, a professor. "We need to calculate how much water the trees will absorb, or else it could have a negative effect." Villagers in Zhengxin have taken on this challenge, with limited success. When the irrigation channels began to run dry, Lu Xianglin switched from wheat to cotton on his land. He also planted trees to protect his fields from sandstorms. He says he still gets good yields using flood irrigation and earns a good income for his family. Other farmers haven't stuck it out : about one in three have left Zhengxin in the past 10 years after their wheat crops died. Young people who can find jobs in the towns rarely return. Last week, Mr Lu joined the other men in his village on a government-arranged trip to see the land that has been set aside for their relocation, nearly 40 miles to the south. The next day, he was back, shaking his head at the plan. The idea of uprooting his family troubles him, as does the idea of giving up the land that fed his forefathers. He prefers to stay and keep up the fight. "With enough water, this problem can be solved," Lu says. "We can plant trees and grass, and they will grow bigger. That will stop the desert." Experts say that farmers could switch to drip irrigation to lessen their water intake for growing crops. Elsewhere in the region, farmers have built brick greenhouses as part of a plan to grow vegetables using less water. Roadside signs urge farmers to "Save Water, Protect the Environment". Question: What advice is given by experts to save water? Options: A: To plant more trees. B: To build greenhouses. C: To change crops. D: To use drip irrigation.
A: D

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: All of us eat every day, but most of us don't understand nutrition . How much do you know about good nutrition? Are the following statements true or false? 1. People who don't eat meat can stay healthy. True. As long as people eat enough milk, eggs and meat alternates , they can get enough protein. 2. Fresh vegetables cooked at home are always more nutritious than canned vegetables. False. The difference depends more on how vegetables are prepared than whether they are fresh or canned. Vegetables cooked in too much water can lose a large quantity of vitamins. 3. Food eaten between meals can be just as good for health as food eaten at regular meals. True. Nutritional value depends on what types of food you eat, not when you eat them. Eating an egg or an orange between meals can _ a good diet. 4. Taking extra vitamins beyond the recommended daily allowances won't give you more energy. True. It's widely believed that extra vitamins provide more energy. But taking more than the baby needs doesn't make it function better, just as overfilling your gas tank doesn't make your car run better. 5. Natural vitamins are better supplements for the diet than _ vitamins. False. There is no difference. A vitamin has the same properties and specific chemical structure whether made in a laboratory or taken from plant or animal parts. 6. Older people need the same amount of vitamins as younger people. True. Older people need the same quantity of vitamins as younger people although they need fewer calories. Certain illnesses raise the requirements for some vitamins, but that is true for the young as well as the old. 7. Food grown in poor soil is lower in vitamins than food grown in rich sold. False. The vitamins in our foods are made by the plants themselves. They don't come from the soil. However, the minerals in a plant depend on the minerals in the soil. If you have answered these questions correctly, you can say you know much about food and nutrition by today's standards. But remember that nutrition is a growing science and... Question: The main purpose of the passage is to _ . Options: A: list today's standards of some food and nutrition B: introduce what should be eaten and what not C: explain what is helpful to your health and what is not D: test our nutrition IQ by judging the problems listed
A: A

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: So the little girl now walked on, her bare feet quite red and blue with the cold. She carried a small bundle of matches in her hand, and a good many more in her tattered dress. No one had bought any of them the live long day; no one had given her a single penny. Trembling with cold and hunger crept she on, the picture of sorrow: poor little child! The snow-flakes fell on her long, fair hair, which curled in such pretty ringlets over her shoulders; but she thought not of her own beauty, or of the cold. Lights were glimmering through every window, and the savor of roast goose reached her from several houses;it was New Year's eve, and it was of this that she thought. In a corner formed by two houses, one of which projected beyond the other. She sat down, drawing her little feet close under her, but in vain, she could not warm them. She dared not go home, she had sold no matches, earned not a single penny, and perhaps her father would beat her,besides her home was almost as cold as the street,it was an attic; and although the larger of the many chinks in the roof were stopped up with straw and rags. The wind and snow often penetrated through. Her hands were nearly dead with cold; one little match from her bundle would warm them. Perhaps, if she dared light it, she drew one out, and struck it against the wall, bravo! It was a bright, warm flame, and she held her hands over it. It was quite an illumination for that poor little girl; no, I call it rather a magic taper, _ , so beautifully blazed the fire within! The child stretched out her feet to warm them also; alas, in an instant the flame had died away, the stove disappeared, the little girl sat cold and comfortless, with the burnt match in her hand. Question: The little girl gave us an impression of being _ . Options: A: beautiful and kind B: poor but imaginable C: poor and pitiful D: poor but lively
A: C