Read the following article and select the best answer. Article: What will power your house in the future?Nuclear,wind,or solar power?According to scientists at the Massachusetts Institute of Technology (MIT) in the US,it might be leaves -- but artificial ones. Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis .Now researchers have found a way to imitate this seemingly simple process. The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts .Similar to natural leaves,it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell,which uses those two materials to produce electricity,located either on top of a house or beside the house. Though the leaf is only about the shape of a poker card,scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. "One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology," said Nocera at a conference of the American Chemical Society. The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf,by contrast,is made of cheap materials,easy to use and highly stable. In laboratory studies,Nocera showed that an artificial leaf prototype could operate continuously for at least 45 hours without a drop in activity. The wonderful improvements come from Nocera's recent discovery of several powerful,new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now,the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides,the device can run in whatever water is available;that is,it doesn't need pure water. This is important for some countries that don't have access to pure water. With the goal to "make each home its own power... Question: The purpose of the scientists at MIT in developing the new artificial leaf is to _ . - build up more power stations in the world - provide cheaper energy for developing countries - offer people in developing countries access to pure water - gain a deeper understanding of the photosynthesis process
provide cheaper energy for developing countries

(Question)
Read the following article and select the best answer. Article: The influence of America is increasing in my country. Spanish people drink Coca Cola, wear blue jeans, watch Hollywood movies, listen to American music, and eat fast food, and they do these things every day. I think that American movies are a good way to spread American culture because people are often influenced by what they see in the movies. Most of the programs and documentaries we watch on TV are from America, and most of the movies we go to see are made in Hollywood. In the last few years, the government has tried to protect the Spanish movies. Now, in our cinemas, at least twenty percent of the movies which are shown must be from Spain or from other countries in Europe. American culture is a part of Spanish life now. It's certain that many things from America are as much a part of people's lives as Spanish things. For example, Coca Cola is as familiar to everybody as any typical Spanish product. I've known about Coca Cola for my whole life. However, it's different with Western fast food. For example, I don't think McDonald's is as successful in Spain as it is in other countries. In my opinion, one of the reasons may be the lifestyle of the Spanish people. The Spanish people normally eat at home. On the other hand, maybe McDonald's hamburgers will eventually replace the famous Spanish tapas. It's true that in every city in Spain you can find a McDonald's, and it is more popular among the Spanish children than among the adults. In any case, it's obvious that American culture is becoming more and more a part of our lives every day. Question: Why did the government set some rules for the films shown in Spain? - To protect foreign culture in Spain. - To earn more money from Spanish films. - To limit the number of foreign movies. - To unite the European Community.
(Answer)
To limit the number of foreign movies.

Ques: Read the following article and select the best answer. Article: It was the first snow of winter -- an exciting day for every child but not for most teachers. Up until now, I had been old enough to dress myself, but today would need some help. Miss Finlayson, my kindergarten teacher, had been through brst snow days many times, but I think she may still remember this one. I managed to get into my wool snow trousers. But I struggled won my jacket because it didn't fit well. It was a hand-mc-down from my brother, and if made me wonder why I had to wear his ugly clothes, At least my hat and scarf were mine, and they were quite pretty. Finally it was time to have Miss Finlayson help me with my boots . In her calm, motherly voice she said, "By the end of winter, you will all be able to put on your own boots." I didn't realize at the at the time that this was more a statement of hope than of confidence . I handed her my boots and stuck out my foot. Like most children, I expected grown-ups to do all the work. After much pushing, she managed to get first one into place and then, with a sigh, worked the second one on too. I announced, "They're on the wrong feet." She struggled to get the boots off and went through the joyless task of putting them on again. "They're my brother's boots, you know," I said. "I hate them". Somehow, from long years of practice, she managed to act as though I wasn't an annoying little girl, She struggle with me, she asked, "Now, where are your mittens ?" I looked into her eyes and said, "I didn't want to lose them, so I hid them in the toes of my boots. Question: The little girl was more satisfied with her _ . - trousers - jacket - boots - hat
Ans: hat

Read the following article and select the best answer. Article: Researchers in over 80 nations are taking part in a project to conduct a decade-long census of sea life. Scientists presented some of their findings at a recent conference as the project neared its completion. In deep icy waters under Antarctica, scientists found bulbous tunicates, an underground animal, and many newly-discovered creatures believed to be related to starfish and other marine creatures. Elsewhere in the world's oceans, they have recently discovered many kinds of underwater life forms new to science. It is all part of a research effort called the Census of Marine Life. "There are about 2,000 scientists worldwide involved," said Bob Gagosian, President, CEO of the Consortium for Ocean Leadership. Gagosian helps manage the project. "Everywhere they've gone they've found new things," he says. "The ocean basically is unexplored from the point of view of marine living things." Researchers have placed small markers on hundreds of fish and marine animals to track by satellite their migration routes and to discover places where sea life gathers. According to Ron O'Dor, a senior scientist with the Census of Marine Life, knowledge of life on the ocean floor is especially limited. "90% of all the information we have is from the top hundred meters of the ocean," O'Dor states. And he says the sea floor is, on average, at a depth of 4, 000 meters. And so, as some machines dive far below what people have previously seen, scientists are discovering new species of plants, animals and living things. Since the census project began, more than 5,300 new marine animals have been found. Ocean researchers say they hope to catalogue 230,000 species during the census --which some say is only a small part of all the creatures living in the sea. Question: What can we learn from the passage? - About 2,000 scientists from America are involved in the project. - The census of sea life will last for ten years. - 230,000 new marine animals have been found. - The sea floor is at a depth of 400 meters.
The census of sea life will last for ten years.