Read the following article and select the best answer. Article: What will power your house in the future? According to scientists at the Massachusetts Institute of Technology (MIT) in the US, it might be artificial leaves. Natural leaves can change sunlight and water into energy. It is known as photosynthesis . Now researchers have found a way to imitate this 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, using those two materials to produce electricity, located either on top of a house or beside the house. Though the leaf is shaped like a poker card, scientists stated that it is promising to be an inexpensive somtoe 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 an American scientist, Docera. An artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but too expensive and unstable for practical use. The new leaf, however, is made of cheap materials, easy to use and highly stable. In laboratory studies, Nocera showed that an artificial leaf could operate continuously for at least 45 hours. The wonderful improvements come from Nocera's recent discovery of several powerful new, 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 effective at carrying out photosynthesis than a natural one. Besides, the device can run in whatever water is available. Hopefully, each home could possible have the access to the new application in the future. Question: The purpose of this article is to _ . - promote the new product - ask people to do the research - introduce a new kind of energy - show the process of photosynthesis
introduce a new kind of energy

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Read the following article and select the best answer. Article: Some Chinese shops have stopped selling Japanese goods in protest against Tokyo's approval of a school history book they say _ Japan's militaristic past. It was not clear how many Chinese stores had stopped selling Japanese products, but one association official told Renters that the boycott had begun in Shanghai, the country's business center, and the northeast city of Shenyang. Chinese protests against Japan's bid for a permanent seat in the U.N. Security Council. Millions of Chinese have already signed an online demand against giving Japan a permanent seat. South Korea also has criticized the Japanese text book decision. The Korean English-language newspaper Korea Times ran an article on Monday criticizing that action. It said: "A civic education text even has a picture of Tokto( ) as Japanese district on its cover. We cannot help but wonder how many countries in the world would be teaching their children in such wrong words." It went on to say: "The country is already a global power and should show regional leadership, not by force but by moral superiority. Tokyo doesn't appear to be reaching forward in this direction." Question: Which of the following can be the proper title of the news? - Chinese and Korean Displeasure - China, South Korea and Japan - The Reform of U. N. - A New History Textbook
(Answer)
Chinese and Korean Displeasure

Question: Read the following article and select the best answer. Article: The months and years went by. I had been Joe's _ for four years. One evening, Joe and I were sitting in the village inn. A stranger came in, a big, tall man, with heavy eyebrows. The man had large, very clean white hands. To my surprise, I recognized the man. I had seen him at Miss Havisham's many years before. He had frightened me then. He frightened me a little now. 'I think there is a blacksmith here----name of Joe Gargery,' the man said in his loud voice. 'That's me!' Joe answered. He stood up. 'You have an apprentice, known as Pip,' the stranger went on. 'Where is he? ' 'Here!' I cried, standing beside Joe. 'I wish to speak to you both. I wish to speak to you privately, not here,' the man said. 'Perhaps I could go home with you.' We walked back to the workshop in silence. When we were in the sitting room, the man began to speak. 'My name is Jaggers,' he said. 'I am a lawyer in London, where I am well-known. I have some unusual business with young Pip here. I am speaking for someone else, you understand. A client who doesn't want to be named. Is that clear?' Joe and I nodded. 'I have come to take your apprentice to London,' the lawyer said to Joe. 'You won't stop him from coming I hope?' 'Stop him? Never! ' Joe cried. 'Listen, then. I have this message for Pip. He has ---- great expectations!' Joe and I looked at each other, too surprised to speak. 'Yes, great expectations' Mr. Jaggers repeated. 'Pip will one day be rich, very rich. Pip is to change his way of life at once. He will no longer be a blacksmith. He is to come with me to London. He is to be educated as a gentleman. He will be a man of property.' And so, at last, my dream had come true. Miss Havisham----because Mr. Jaggers' client must be Miss Havisham----had plans for me after all. I would be rich and Estella would love me! Mr. Jaggers was speaking again. 'There are two conditions,' he said, looking at me. 'First, you will always be known as Pip. Secondly,' Mr. Jaggers continued, 'the name of your benefactor is to be kept secret. One day, that... Question: At the end of the passage above, Mr. Jaggers says he also has money to give Joe because _ . - he believes he can also help Joe become a gentleman - he is repaying money loaned to Joe previously by the benefactor - the secret benefactor wants Joe to be his personal blacksmith - Joe will have to hire a new worker
Answer:
Joe will have to hire a new worker