Q: Write a multi-choice question for the following article, with the given choices and answer: Article: In South America, the rich soil of the Amazon River basin in Brazil is known as "black gold". Scientists found that the secret of this rich soil was charcoal . Local people made it from animal bones and tree branches. They mixed the charcoal with the soil about 1.500 years ago. Now, scientists in the United States have done a modern demonstration. They say charcoal fertilization offers a revolutionary way to improve soil quality for hundreds or even thousands of years. Mingxin Guo and his team at Delavare State University heated tree leaves, corn stalks , small pieces of wood and poultry waste into "biochar" . They reported their findings at a recent meeting of the American Chemical Society in New Orleans. Biochar could be good news for farmers with poor soil and hungry populations to feed. Professor Guo says it could even help against global warming. Intensive farming and overuse of chemical fertilizer give out carbon dioxide into the atmosphere. Biochar does the opposite, he says. It traps carbon in the ground. The researchers planted winter wheat in containers of soil in a greenhouse -- some with biochar, some without. Professor Guo says the wheat grows much better in the pots with biochar. The soil was added two percent charcoal to. But he says even a one percent treatment will increase productivity. The results demonstrated that biochar can increase organic matter in soil. Loss of nutrients in soil is an increasing problem worldwide as farmers try to grow more food for growing populations. Next, the team will carry out a five-year study of biochar with spinach , green peppers and tomatoes. Mingxin Guo says he learns about the "black gold" in Brazil from a magazine story. He explains that it was discovered in the jungle, in the area where waters flow to the Amazon, in the 1960's. But it was not until recent years that scientists began to bring public attention to it. Options: A reduce the carbon dioxide B keep the carbon in the soil C reduce the loss of nutrients in the soil D absorb the carbon dioxide Answer: B keep the carbon in the soil Question:
A: According to the research, the biochar can help against global warming because it can _ .

Question: Write a multi-choice question for the following article, with the given choices and answer: Article: Living in South Africa, I had always taken the wildlife pretty much for granted. Not to say that we were surrounded by it, but the accessibility of game parks and wildlife sanctuaries(,) always made it seem like a natural part of the environment. For this reason, I suppose that the way my European friends used to talk to me, wasn't so strange after all. They would ask me what I thought at the time were really silly questions which got on my nerves. They'd say things like 'Do you have a pet baboon?' or 'Do you travel to school by elephant?'. When Amanda, a friend of mine who was visiting from England, invited me to join her and a group of friends on a wildlife expedition, I was not filled with enthusiasm. However, from the moment we entered the gates of the Zaluzi game reserve, I knew that this was not going to be anything like I had expected. We had been traveling along the National Road when, suddenly, we turned onto a dirt track which seemed to be hidden in the middle of nowhere. Amazingly, the scenery changed dramatically. The civilized environment took on a wild, chaotic(;) aspect and continued to do so as we walked deeper into the bush. After having a good night's sleep at one of the reserve's bungalows, we were woken at the crack of dawn. After a quick breakfast we piled into a jeep and set off. Our guide assured us that the early start was necessary in order to have the best chance of seeing what was really worthwhile. Armed with just a thermos of coffee, we set out towards the shore of a small lake where it was expected that we could see that animals that used it as their morning watering hole. On the way to our destination, we topped a hill and there, against the emerging morning light, were a group of animals. _ was a stunning sight. As we moved closer, the animals did not appear to be alarmed by our presence. Pet baboons aside, I had never before come within such close range of a pride of lions. It did cross my mind, however, that we might be in a certain amount of danger. When I asked Timothy, our... Options: A When she was traveling along the dirt track. B When she received her invitation. C When she arrived at the game reserve. D When her friend arrived from England. Answer: C When she arrived at the game reserve. Question:
Answer: When did the writer's attitude change about the expedition?

Question: Write a multi-choice question for the following article, with the given choices and answer: Article: What picture do you have of the future? Will life in the future be better, worse of the same as now? What do you hope about the future? Futurologists predict that life will probably be very different in 2050 in all the fields of activity, from entertainment to technology. First of all, it seems that TV channels will have disappeared by 2050. Instead, people will choose a programme from a menu and a computer will send the programme directly to the television. Today, we can use the World Wide Web to read newspaper stories and see pictures on a computer thousands of kilometers away. By 2050, music, films, programmes, newspapers and books will come to us by computer. In what concerns the environment, water will have become one of our most serious problems. In many places, agriculture is changing and they are growing fruit and vegetables to export. This uses a lot of water. Demand for water will increase ten times between now and 2050 and there could be serious shortages. Some futurologists predict that water could be the cause of war if we don't act now. In transport, cars will run on new, clean fuels and they will go very fast. Cars will have computers to control the speed of the car and there won't be any accidents. Today, many cars have computers that tell the drivers exactly where they are. By 2050, the computer will control the car and drive it to your destination. On the other hand, space planes will take people half way around the world in two hours. Nowadays, the United States Shuttle can go into space and land on Earth again. By 2050, space planes will fly all over the world and people will fly from Los Angels to Tokyo in just two hours. In the field of technology, robots will have replaced people in factories. Many factories already use robots. Big companies prefer robots -- they do not ask for pay rises or go on strike, and they work 24 hours a day. By 2050, we will see robots everywhere -- in factories, schools, offices, hospitals, shops and homes. In particular, medicine technology will have... Options: A we should take measures to save water from now on B fruits will be more and more expensive C people will be short of supplies of vegetables D planting will need much less water in the future Answer: A we should take measures to save water from now on Question:
Answer:
. After reading Paragraph 3, we can know _ .