(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Energy is very important in modern life. People use energy to run machines, heat and cool their homes, cook, give light, and transport people and products from place to place. Most energy comes from fossil fuels--petroleum, coal, and natural gas. However, burning fuels causes pollution. Also, if we don't find new kinds of energy, we will use up all the fossil fuels in the twenty-first century. Scientists are working hard to find other kinds of energy for the future. What might these sources of energy be? Energy from the wind All over the world, people use the power of the wind. It turns windmills and moves sailboats. It is a clean source of energy, and there is lots of it. Unfortunately, if the wind does not blow, there is no wind energy. Energy from water When water moves from a high place to a lower place, it makes energy. This energy is used to create electricity. In Brittany, France, for example, waterpower produces enough energy to light a town of 40,000people. Waterpower gives energy without pollution. However, people have to build dams to use this energy. Dams cost a lot of money, so water energy is expensive. Energy from the earth There is heat in rocks under the earth. Scientists use this heat to make geothermal energy. San Francisco gets half of the energy it needs from geothermal power. This kind of energy is cheap, but it is possible only in a few places in the world. Energy from the sun Solar panels on the roofs of houses can turn energy from the sun into electricity. These panels can create enough energy to heat an entire house. Solar power is clean and there is a lot of it in sunny places. But when the weather is bad, there is no sunlight for energy. Question: What is the writer's opinion about the energy? Options: A: Try to use water energy more though it costs a lot. B: Each natural energy has its own advantages and disadvantages. C: Solar power is environmental. D: Wind power is the cheapest but we can't get.
(Answer)
B

(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Organic foods are foods produced according to strict guidelines set forth by the government. These guidelines state that organic foods must be produced without modern man-made processes and materials, such as man-made pesticides and chemical fertilizers . For most of history, almost all foods were organic. However, during the 20th century, the principles of the Industrial Revolution were applied to agriculture. This led to the development of many man-made processes that were believed to improve farming techniques. In other words, small farms grew larger as the ideas that were used by factories and big business were put into action to grow more food. Over time, the organic movement started to get back to the old, traditional methods of farming. Those in favor of organic foods believe that man-made chemicals and pesticides used in modern farming can be harmful to your health. They also believe that organic foods are more nutritious . If you go to the store, you will notice that organic foods may be more expensive than non-organic foods. Are organic foods worth the extra cost? Some people believe they are. Despite the lack of scientific findings to support their thoughts, many people still prefer organic foods because they think they taste better, while others don't care much about that because they say they haven't found out the differences. If you wonder whether you should choose an organic food instead of a non-organic one, the best thing you can do is to try it by yourself and see which you prefer. Although organic foods were once only available in health food stores, you can find them today at most stores. Question: From the passage, we know that _ . Options: A: the principles of agriculture were once used in factories B: more farmers began to take up farming C: lots of small farms disappeared one by one D: almost all foods were organic in the past
(Answer)
D

(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Bulgaria is famous for its roses and produces about 85 percent of all the rose oil in the world. Rose oil is called liquid gold and is used in making soaps, chocolates, perfumes and so on. The first records about growing roses on Bulgarian land go back many centuries. The Rose Valley developed in the area between the cities of Kazanlak and Karlovo in central Bulgaria. The roses seem to love the soil and weather there. The rose is the most important plant grown in Bulgaria, which could be called the country on the roses. The rose plantations in the Rose Valley are the largest in the world. Much of the population in the Rose Valley works in the rose industry. In Bulgaria, we produce rose oil, rose water and other products. Rose oil is used in high-quality perfumes produced in many countries. The main flower grown is the Kazanlak rose, which is famous around the world. The oil is prepared by distillation . Each flower is picked by hand, and you need 3,000 kilos to make one kilo of rose oil. That means about 30 flowers for just one tiny drop oil. So you can understand why it is so expensive and is called liquid gold. Each year on the first weekend in June, during the harvest, there is a Festival of Rose in Kazanlak with many performances. Judges choose the Queen of Roses as part of the summer festival. After this, she honors the most skillful picker of roses in the harvest. This festival is an old tradition and goes back more than a century. Today it also includes an International Folklore Festival and attracts many tourists. The festival ends with a concert in the evening. There are also festivals in Karlovo and other towns. Come to see and enjoy. Question: Rose oil is called liquid gold because if its _ . Options: A: great value B: bright color1 C: growing places D: wide uses
(Answer)
A