Read the following article and select the best answer. Article: Astronomers say they are on the point of finding planets like Earth orbiting other stars, which is a key step in determining if we are alone in the universe. A top NASA official and other leading scientists say that within four or five years they should discover the first Earth-like planet where life could develop, or may have already. A planet close to the size of Earth could even be found sometime this year. At the annual American Astronomical Society conference this week, each discovery involving so-called "exoplanets" --those outside our solar system -- pointed to the same conclusion:Quiet planets like Earth where life could develop probably are plentiful. NASA's Dew Kepler telescope and a lot of new research from the suddenly hot and competitive exoplanet field caused noticeable buzz at the meeting.Scientists are talking about being at "an incredible special place in history" and closer to answering the question. "Are we alone? For the first time, there's an optimism that sometime in our lifetimes we're going to _ that," said Simon Worden,an astronomer who heads NASA's Ames Research Center. "If I were a betting man, which I am, I would bet we're not alone." "These are big questions that reflect upon the meaning of the human race in the universe," the director of the Vatican Observatory, the Rev. Jose Funes, said Wednesday in an interview at this week's conference. Worden told The Associated Press: "I would certainly expect in the next four or five years we'd have an Earth-sized planet in the habitable zone." Question: From the passage we can learn that _ . - an Earth-like planet has been found - it's been proved we are not alone in the universe - Jose Funes has found the meaning of the human race in the universe - the discovery of an Earth-like planet could happen in the near future
the discovery of an Earth-like planet could happen in the near future

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Read the following article and select the best answer. Article: In a time when a dangerous number of people are overweight, many people seem to have forgotten the most important way to keep healthy and slim---exercise. And as a new study carried out on mice in the lab has shown, exercise done early in life can reward you in your adult years. A team of researchers at the University of California studied the effects of early exercise on adult physical activity, body mass and eating. They found that early-age exercise in mice has positive effects on adult levels of voluntary exercise in addition to reducing body mass. "These results may have an effect on the importance of regular physical education in elementary and middle schools," said Theodore Garland, a professor of biology, who led the research project. "If kids exercise regularly through their school years, then they may be more likely to exercise as adults, which could have far-reaching positive effects on human health and well-being." Although the positive effects of early-life exercise lasted for only one week, it is important to note that one week in the life of a mouse is the same as about nine months for humans. "Our results suggest that any positive effects of early-life exercise on adult exercise will need to be kept up if they are to be long-lasting." His team of researchers found, too, that all mice that had access to early exercise were lighter in weight than non-exercised mice. Garland explained that, in general, exercise will stimulate appetite sooner or later. However, it is possible that certain types of exercise, done for certain periods of time or at certain light levels, might not _ appetite much, if at all, at least in some individuals. "If we could understand what sorts of exercise these might be, then we might be able to tailor exercise recommendations in a way that would bring the benefits of exercise without increase in appetite, leading to a better chance of weight loss," he said. Question: How long do the positive effects of early-life exercise last for a mouse? - One day - One week - One month - Nine months
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One week

Ques: Read the following article and select the best answer. Article: "Developed and developing nations can learn from each other seeking a low-carbon economy. In terms of energy saving and green economy, China doesn't _ developed nations," said Zhou Changyi, director of the energy saving department of the Ministry of Industry and Information Technology. "While we can learn many aspects from developed nations, they also should learn something from us, such as water conservation," Zhou said in a speech during the new Path of China's Industrialization forum at the ongoing China International Industry Fair. He said industrialized nations and China are dealing with different issues to fight climate change. The United Kingdom, for example, is concerned about transport, buildings and new energy in reducing carbon emissions. For China, the most urgent task is how to realize new type of industrialization and avoid mistakes that other countries made when they industrialized. Swiss power and automation technology group ABB called for a stronger focus on product life-cycle assessment, or LCA, which is used to study the environmental impact of a product from the research and manufacturing stage through its usage and recycling. Tobias Becker, head of ABB' s process automation division for North Asia and China, said LCA is an effective tool in helping manufacturing industries to reduce carbon emissions. LCA shows that industrial customers should focus on a product's environmental impact throughout its life-cycle instead of on its initial investment. Richard Hausmann, North East Asia CEO of Siemens, said, "The color of future industrialization is green. " The Germany company recently announces that it wants to receive orders worth more than 6 billion Euros ( US 8. 8 billion) for intelligent power networks, Smart Grid, over the next five years. Siemens has set a 20 percent market share target for the global smart grid business. A smart grid delivers electricity from suppliers to consumers using digital technology, advanced sensors specialized computers that save energy, reduce costs and... Question: What can be a suitable title for the text? - Intelligent Power Networks - Low-carbon Economy -a Shared Goal - Two Biggest Markets for Smart Grid - Developed and Developing Nations Can Learn from Each Other
Ans: Low-carbon Economy -a Shared Goal

Ques:Read the following article and select the best answer. Article: Money spent on advertising is money spent as well as any I know of. It serves directly to assist a rapid distribution of goods at reasonable prices, thereby establishing a firm home market and so making it possible to provide for export at competitive prices. By drawing attention to new ideas it helps enormously to raise standards of living. By helping to increase demand it ensures an increased need for labor, and is therefore an effective way to fight unemployment. It lowers the costs of many services: without advertisements your daily newspaper would cost four times as much, the price of your television license would need to be doubled, and travel by bus or tube would cost 20 per cent more. And perhaps most important of all, advertising provides a guarantee of reasonable value in the products and services you buy. Apart from the fact that twenty-seven Acts of Parliament govern the terms of advertising, no regular advertiser dare promote a product that fails to live up to the promise of his advertisements. He might fool some people for a little while through misleading advertising. He will not do so for long, for mercifully the public has the good sense not to buy the inferior article more than once. If you see an article consistently advertised, it is the surest proof I know that the article does what is claimed for it, and that it represents good value. Question: According to the author, _ . - the consumers are often fooled by misleading advertising. - no advertiser dare promote a product that can't live up to the promise of his advertisement. - if an article is consistently advertised, it probably has good value. - with advertisements, you have to pay more for the goods or services you need.

Ans:
if an article is consistently advertised, it probably has good value.