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題。由第一段raising hopes of finding a space rock that might support life, astronomers reported recently. 及第二段“This is an important discovery to answer the question ’Are we alone? ’”可推知有生命可能存在于宇宙中的其他行星上。4. Which of the following statements is NOT true according to the passage? A. The signals ing from lowmass planets are too weak to be noticed. B. Most of the discovered planets are not fit for people to live on. C. If a star with its planet happens to be in line with the source star, then the planet can be found. D. The power of the new technique is proved by the discovery of the earthlike planet. 【解析】選A。細(xì)節(jié)理解題。由最后一段The main advantage of microlensing is the signals for lowmass planets: They’re not weak signals. They’re just rare. 微引力透鏡的主要優(yōu)勢(shì)是低質(zhì)量行星的信號(hào): 它們不是弱信號(hào)。它們只是罕見(jiàn)。B(2020杭州高二檢測(cè))When international aid is given, steps must be taken to ensure that the aid reaches the people for whom it is intended. The way to achieve this may not be simple. It is very difficult for a nation to give help directly to people in another nation. The United Nations Organization (UNO) could undertake to direct the distribution of aid. Here however rises the problem of costs. Also tied with this is time. Perhaps the UNO could set up a body of devoted men and women in every country who can speedily distribute aid to victims of floods and earthquakes. More than the help that one nation can give to another during a disaster, it would be more effective to give other forms of help during normal times. A mon proverb says, “Give me a fish and I eat for a day, teach me to fish and I eat for a lifetime. ” If we follow this wise saying, it would be right to teach people from less developed nations to take care of themselves. For example, a country could share its technology with another. This could be in simple areas like agriculture or in more plex areas like medical and health care or even in building satellites. Even a small country is able to help less developed nations. Sometimes what is taken for granted, like the setting up of a water purification plant or the administration of a school, could be useful for countries which are looking about to solve mon problems. It does not cost much to share such simple things. Exchange students could be attached for a number of months or years and learn the required craft while on the site. They can then take their knowledge back to their homelands and if necessary e back from time to time to clear doubts or to update themselves. Such aid will be truly helpful and th