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  • 题型:阅读理解 题类:常考题 难易度:普通

    阅读理解

        Dazha Crabs from Yangcheng Lake

        With the Mid-Autumn Festival coming, the time for crabs is around the corner! Dazha Crabs from Yangcheng Lake in China are believed to be the best freshwater crabs.

        “They are delicious, because the bottom of Yangcheng Lake is hard and the crabs grow strong by walking on such a hard surface,” said one sales manager in Suzhou.

        Li Lei, a crab lover from Beijing, said “It's very delicious! But there are too many fake Yangcheng Lake Dazha Crabs”.

        “Maybe the crabs from other regions can appear to be glistening green back, white belly after people wash them, but the golden fine hair on crab claws is still a point of pride and is exclusive to Dazha Crabs from Yangcheng Lake,” said the manager.

        The best time for enjoying them is during September and October of Chinese lunar calendar. “When the season for crabs arrives, the Dazha Crabs from Yangcheng Lake are flown to various cities so that people's appetites can be satisfied,” said the sales manager. “They are really expensive here, sometimes more than 320RMB/500g, 10% of my salary!” said Li Lei.

        Dazha Crabs are usually steamed or boiled for within 20 minutes before they come on the dinner table. They are often enjoyed with vinegar mixed with minced ginger to add flavor and get rid of the cold. People who are particular about how they eat crabs also need to have high-grade Shaoxing rice wine to warm their stomachs.

        There is much work required to eat crabs. So much shell!Most people use both hands and teeth while eating Dazha Crabs. “The eating way is not graceful or elegant,” said Huck. “However, some professionals of eating crabs can use tools to take all the meat out of the crab without damaging a single bite and the crab can be restored to its original shape if the empty shells are pieced together!” said Han Mei, another Dazha crab lover.

    (1)What do we know about Dazha Crabs from Yangcheng Lake from the text?
    A . They belong to seawater crabs. B . You must use tools to eat them. C . The best time for eating them lasts over three months. D . Vinegar, ginger and rice wine can be enjoyed together with them.
    【答案】
    (2)The underlined word “exclusive” in Paragraph 4 probably means ___________.
    A . expensive B . unique C . entire D . similar
    【答案】
    (3)Which of the following is correct according to the passage?
    A . The sales manager believes the living environment contributes nothing to the good taste of Dazha Crabs from Yangcheng Lake. B . Li Lei has mixed feelings about Dazha Crabs from Yangcheng Lake. C . Han Mei thinks little of some professionalsof eating crabs. D . Huck supports the way that most people eat crabs.
    【答案】
    【考点】
    【解析】
      

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    阅读理解

                                                                                       Growing Up in Australia

        Since 2004, Australia has been holding its largest study of children's health ever. This project, “Growing Up in Australia,” is following two groups of children from early childhood until they become adults. The project is being supported by the Australian government and involves hundreds of researchers visiting the homes of 10,000 children. Researchers hope to find a relationship between the children's future behavior and their health, education, and family environments.

        When the study began, the first group of children was aged 0-1, while the second group was aged 4-5. In order to make sure that children from every kind of environment and background were chosen, the study found volunteers from each area. Some volunteers are in the countryside, while others are in big cities. The volunteers for both groups were chosen from a variety of different social and ethnic (种族) backgrounds.

        The researchers visit the participants' (参与者) homes every two years to gather information. They interview the parents about parenting styles and the child's daily activities. They also take measurements of the children's health and how well the children perform in school. The researchers also collect information such as the income of the child's family, the school the child attends, and the kind of community (社区) in which the child lives. They plan to use the information to improve children's lives.

        Researchers have already begun to publish some interesting results. For instance, after examining information from the second group of children when they were 10-11 years old, researchers found that children who spend a lot of time doing organized activities, such as music lessons or sports, have good control of their emotions and behavior. The study also found that they are able to complete their homework without their parents around. On the other hand, it found that children who watch a lot of television get upset easily and have worse behavior. The Australian government is now using this information to make better educational and health policies for Australian children.

    阅读理解

        Songs that make our hearts happy can make them stronger too, US researchers reported on Tuesday.

        They found that when people listened to their favorite music, their blood vessels (血管) dilated in much the same way as when they are laughing, or taking blood medications.

        “We have a pretty impressive effect,” said Dr Michael Miller, director of preventive cardiology (心脏病学) at the University of Maryland Medical Center in Baltimore.

        “Blood vessel diameter improved,” he said.“The vessel opened up pretty significantly. You can see the vessels opening up with other activities such as exercise.” A similar effect is seen with drugs such as statins.

        When blood vessels open up more, blood flows more smoothly and is less likely to form the clots (凝块) that cause heart attacks and strokes. “We are not saying to stop your statins or not to exercise but rather to add this to an overall program of heart health,” said Miller, who presented his findings to a meeting of the American Heart Association in New Orleans.

        Miller's team tested 10 healthy, non-smoking men and women, who were told to bring their favorite music.They spent half an hour listening to the recordings and half an hour listening to music they said made them feel anxious while the researchers did ultrasound tests designed to show blood vessel function.

        Compared to their normal baseline measurements, blood vessel diameter increased 26 percent on average when the volunteers heard their joyful music.Listening to music they disliked — in most cases in this group — blood vessels narrowed by six percent, Miller said.

        Miller said he came up with the idea after discovering that laughter caused blood to literally flow more smoothly. “I asked myself what other things make us feel really good, besides calories from dark chocolate of course.Music came to mind. It makes me feel really good,” he said.

        Most of the volunteers chose country music but Miller said the style is not so important rather than what pleases each individual.

    阅读理解

    Hollywood's theory that machines with evil(邪恶) minds will drive armies of killer robots is just silly. The real problem relates to the possibility that artificial intelligence(AI) may become extremely good at achieving something other than what we really want. In 1960 a well-known mathematician Norbert Wiener, who founded the field of cybernetics(控制论), put it this way: “If we use, to achieve our purposes, a mechanical agency with whose operation we cannot effectively interfere(干预), we had better be quite sure that the purpose put into the machine is the purpose which we really desire.”

    A machine with a specific purpose has another quality, one that we usually associate with living things: a wish to preserve its own existence. For the machine, this quality is not in-born, nor is it something introduced by humans; it is a logical consequence of the simple fact that the machine cannot achieve its original purpose if it is dead. So if we send out a robot with the single instruction of fetching coffee, it will have a strong desire to secure success by disabling its own off switch or even killing anyone who might interfere with its task. If we are not careful, then, we could face a kind of global chess match against very determined, super intelligent machines whose objectives conflict with our own, with the real world as the chessboard.

    The possibility of entering into and losing such a match should concentrate the minds of computer scientists. Some researchers argue that we can seal the machines inside a kind of firewall, using them to answer difficult questions but never allowing them to affect the real world. Unfortunately, that plan seems unlikely to work: we have yet to invent a firewall that is secure against ordinary humans, let alone super intelligent machines.

    Solving the safety problem well enough to move forward in AI seems to be possible but not easy. There are probably decades in which to plan for the arrival of super intelligent machines. But the problem should not be dismissed out of hand, as it has been by some AI researchers. Some argue that humans and machines can coexist as long as they work in teams—yet that is not possible unless machines share the goals of humans. Others say we can just “switch them off” as if super intelligent machines are too stupid to think of that possibility. Still others think that super intelligent AI will never happen. On September 11, 1933, famous physicist Ernest Rutherford stated, with confidence, “Anyone who expects a source of power in the transformation of these atoms is talking moonshine.” However, on September 12, 1933, physicist Leo Szilard invented the neutron-induced(中子诱导) nuclear chain reaction.

    阅读理解

        Spending money on time-saving services reduces stress and boosts(增进)happiness, according to a new research, but shockingly, few of us do it.

        Whillans, a professor at HBS said, "Buying time helps to protect us from the stress in our lives caused by time pressure, and the feeling that we don't have enough minutes in the day to complete our tasks."

        The effect was clearest in the Canadian experiment, in which 60 working adults were given $40 to spend in two different ways. One weekend, they were told to spend the money on a material purchase—a gift for themselves. The next weekend, they were instructed to spend the $40 on anything that saved them time, from paying the neighbor ' s kid to run errands (跑腿)to taking an Uber instead of a bus.

        〇n the day they made the time-saving purchase, they felt happier, in a better mood, and lower feelings of time stress than on the day they bought a material purchase," said Whillans.

        The biggest surprise to the researchers was how few people would spend money on time-saving services. When they asked 98 working adults how they would spend a "windfall" of $40, only two percent named a purchase that would save them time.

        "One reason," said Whillans, is that we're very bad at remembering how much we hate doing certain tasks once the suffering has passed. That makes us less likely to take active steps to avoid that overburdened feeling in the future. "But another possible cause is good old-fashioned guilt." If you feel guilty about getting someone to clean your house for you, then you might get less happiness from outsourcing (夕卜包)that task," said Whillans, "or you might just be less likely to spend your money in that way."

    阅读理解

    You should try your best to create your own family library so that you and your family are always learning. "It is a great mistake to think that education is finished when young people leave school. Education is never finished even if you grow older," said Mrs Child in The Mother's Book. "Collecting a library of books in your home is really helpful to your family.”

    "What is really interesting about having so many books in your home is that a book you purchase has a chapter about the deeper knowledge of your favorite subject at school," said a university graduate. Researchers in a study tries to identify what parents do has an influence on how well their children do on standardized tests. One positive aspect they find is the availability of a large number of books at home. This has a stronger connection, especially when you read to your children every day. The more books your older kids have access to at home, the more likely they are just to be reading for fun, rather than having to wait for weekly trips to the library.

    John Henry, one educated parent, said, "I have been homeschooling my children using the philosophy of A Thomas Jeffer son Education. This philosophy of learning is based on the reading of classic books." Clinton Fadiman said, "When you reread a classic, you do not see more in the book than you did before; you see more in you than before." Classic books also make you smarter and wiser! The wisdom comes in the examples in the lives of the characters.

    "It is within your power to guide your youth in their reading and to cultivate in their hearts a desire for good books. It is the most unfortunate if a person is not possessed with the desire for good reading. The reading habit, like charity, should begin at home," said Mrs Child.

     阅读理解

    According to a new research,the more people in a country who have a particular gene(基因),the happier the nation will be.This DNA is known as the FAAH gene.People with a particular version of it tend to be cheerier souls.There is a link between levels of the FAAH gene and the number of people who say they are very happy.

    Sweden—one of the happiest countries in the world—also has lots of happy DNA.Ghana,Nigeria,Mexico and Columbia all come out near the top in the happiness league,and have high rates of the gene.In contrast,the people of Iraq,Jordan and China are among the least likely to rate themselves as very happy and also have the lowest level of the FAAH gene.

    However,wealth and health are found to have little effect on happiness.The finding could help explain why some of the world's poorest nations are also the happiest.In addition,the FAAH gene and an optimistic attitude would not always go hand in hand.For example,Russians and Estonians score very low in happiness,despite having the right happy DNA.

    Professor Michael Minkov said,"The climate condition is associated with the nation's happiness.We can notice the high occurrence of the FAAH gene in tropical(热带的) areas in the Americas and Africa.And the occurrence of the gene around the Mediterranean Sea is much lower than that in Northern Europe."

    The social experts say that genetics is not the only determinant(决定因素) of happiness.The economic and political difficulties in some nations also contribute to the very low happiness scores.Nations that are not blessed with the right DNA aren't necessarily miserable.

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