What if we could replace oil with a fuel which produced no pollution and which everybody had equal access to? The good news is that we can. In fact, we are swimming in it--- literally. Hydrogen is one of the building blocks of the universe. Our own sun is basically a big, dense cloud of the stuff. And hydrogen can be used to create electricity for power, heat and light. The problem is that hydrogen is everywhere and nowhere at the same time. It does not exist as a material on its own, but is always part of something else. So it has to be separated before it can be used. Most commercial hydrogen in use now is created from natural gas. As oil will start to run out in around the year 2030, it makes sense to produce as much hydrogen as possible as soon as we can. But natural gas supplies will also begin to run out soon after. Another source is needed. Researchers are now using electricity to make water into hydrogen. Companies are working on the problem in their own areas. The first commercial hydrogen "fuel cells" for computers and mobile phones have already come on to the market. Auto companies have also invested over US $2 billion in the production of hydrogen fuelled cars. The nations of a hydrogen fuelled planet would not fight over energy recourses. There would be a great reduction in pollution. The only by-product of creating hydrogen is pure drinking water--- something that is very scarce in many parts of the world. But that is not where the good news ends. Once the costs of producing hydrogen have been brought down, it will possibly provide power for a third of the Earth's population that has no electricity. And electricity creates wealth. In South Africa over the last decade there has been a large programme of electrification. Thanks to the programme, people do not have to spend their days looking firewood to burn for heat. And with electric light, they can work long into the night. Some scientists see radical changes in the way the human race co-operates. Hydrogen creates electricity, and is also... What is the author's attitude about the future? A) skeptical B) negative C) indifferent D) positive
D
(Question)
A grave of a man dating back to around 2300 BC was found by archaeologists in England On May 3, 2002. Buried with him were the tools of a hunter or warrior. There was a bone pin that may have been from a piece of clothing such as a leather coat. He carried a copper knife on his breast. The most amazing find was two gold earrings. That would have made him a man of distinction. Only a few centimeters from his head were two pots made of clay, tools and materials to make arrows, a bow and a dozen arrows for hunting and a second, smaller copper knife. Next to them lay a cushion stone, upon which the man could work metal. His grave is the richest of any found from that period, because this man was buried with two gold earrings which are the oldest gold ever found in Britain (dated to 2470 BC). Besides, he was buried three miles from Stonehenge. Archaeologists tend to believe he was a member of a powerful class who might have organized the construction of Stonehenge. Stonehenge was begun around 3000 BC. In about 2300 BC the huge stone circles were built. The biggest stone weighed approximately 20 tons. But the smaller blue stones, still weighing 4 tons on average, came from west Wales. It is not yet known how these were conveyed over a distance of 380 km. It is also a mystery how early man was able to construct Stonehenge without the use of modern construction machines and lorries. He is an example of people who brought culture and new techniques from the European mainland to Britain. In terms of technical development people were going from the Stone Age to the Bronze Age and then to the Iron Age. Why is the man buried in the grave called the "king of Stonehenge" ? A) He was buried three miles from Stonehenge. B) He had the oldest gold ever found in Britain. C) He might be a member of a powerful class who might have organized the construction of Stonehenge. D) All of the above.
(Answer)
D
Ques: Learners report two main difficulties in reading, which may be linked. There are too many unknown words and as a result reading is simply not a pleasure. For some students, even reading in their own language is a chore. Having a wide vocabulary is essential to making sense of written language. Of course, this is a circular argument, because the more you read the more vocabulary you learn and the more words you know the more easily you can read. Don't make the mistake of reading with your dictionary beside you, looking up every single new or doubtful word. This is laborious and prevents you from practicing the skill of prediction. Sometimes in reading you find a word you know but the sense doesn't seem to fit in. This is not surprising because words have so many meanings and degrees of meaning. What is more, part of their meaning is shaped by the words around them. Keep looking at the surrounding words and asking yourself "what sort of meaning would make sense here?" The more that people study the reading process, the better they can pass on to language learners a range of advice to choose from. People have learned to read in all kinds of ways. Here is some information that could help you plan to be a better reader in the foreign language you are studying. 1)Work out the general meaning first When people read in a new language they often feel they must take a detailed approach, focusing on every word, particularly those they don't know. They read as if they were using a microscope, looking carefully at each of the small pieces(the individual words), but not necessarily seeing the whole picture at first. This is called the "bottom-up" approach. Other readers try to look first at the big picture(the "top-down" approach), attending to individual bricks only as necessary, a process that involves some intelligent guesswork. Generally this second approach is recommended by successful learners. 2)Interactive reading Another way of thinking about reading is to describe it as an interactive process, where the text... . Successful learners recommend _ . A) trying to look first at the big picture B) looking carefully at each of the small pieces C) focusing on every word D) "bottom-up" approach
Ans: A
Ques: What's black and white and read all over? Not newspapers, at least not anymore. In fact, if you're like most young people, you probably don't read the newspaper at all. In one recent survey, just 19 percent of 18 to 34-year-old said they read a newspaper every day, while 37 percent watch local TV news and 44 percent visit Internet news sites daily. As people turn more and more to new technologies, they turn the pages of newspapers less and less. "There's a revolution in the way young people get news," says media consultant Merrill Brown. Just a generation or two ago, the newspaper was the main way that many people got their news. Now, nearly every home has at least one TV set. There's high-speed, wireless Internet both at home and in many public places. You no longer have to wait for a bundle of newsprint to arrive on your doorstep every morning. Thanks to new technology, if you want to know what's going on in the world, you can get breaking news immediately in more ways than one. So newspapers face a very big challenge. Raised on MTV and video games, today's kids and young adults want flashy displays, special effects, quick information, and the chance to interact in real time, even when they're reading about serious problems. If newspapers can't find creative ways to be more than just ink on paper, some experts suggest, they might disappear completely. Traditional newspaper articles are supposed to be read from beginning to end, lack of interaction. With Web pages, on the other hand, there's more freedom. You can look through the things you're interested in, then follow links to other sources. You can join discussion groups, read other people's opinions on a topic, or start a blog to express your own views. From the survey, we can see that _ . A) TV has become the major source of news B) newspapers are no longer the major source of news C) more than half of the 18-to-34-year-old visit news sites daily D) new technologies have replaced the traditional one
Ans:
B