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题型:阅读理解 题类:模拟题 难易度:普通

安徽省六安市第一中学2016-2017学年高三下学期英语高考模拟考试试卷

阅读理解

    Hummingbirds(蜂鸟) are one of nature's most energetic fliers and the only birds to hover(盘旋) in the air by relying on their strength alone.

    Now scientists have found that it is the ratio(比值) of the bird's wing length to its width that makes them so efficient. The discovery is helping experts compete with 42 million years of natural selection to build helicopters that are increasingly efficient.

    David Lentink, an assistant professor at Stanford University in California, tested wings from 12 different species of hummingbirds, which he sourced from museums. He placed them on a machine used to test the aerodynamics(气力学) of the helicopter blades(桨叶). Professor Lentink's team used the same machine to test the blades from an advanced micro-helicopter used by the UK's army. They found that the micro-helicopter's blades are as efficient at hovering as the average hummingbirds.

    But while the micro-helicopter's blades kept pace with the average hummingbird wings, they could not keep up with the most efficient hummingbird's wing. The wings of Anna's hummingbird were found to be about 27 percent more efficient than the man-made micro- helicopter's blades.

    While Professor Lentink wasn't surprised at nature's superiority, he said that helicopter blades have come a long way. “The technology is at the level of an average hummingbird,” he said. “A helicopter is really the most efficient hovering device that we can build. The best hummingbirds are still better, but I think it's amazing that we're getting closer. It's not easy to match their performance, but if we build better wings with better shapes, we might match hummingbirds.”

    Professor Lentink said that we don't know how hummingbirds maintain their flight in a strong wind, how they navigate(确定方向) through branches, or how they change direction so quickly. He thinks that great steps could be made by studying wing aspect ratios-the ratio of wing length to wing width. Understanding these abilities and characteristics could be a benefit for robotics and will be the focus of future experiments.

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内.

(1)、What did the scientists find about hummingbirds?

A、Their wings are long and wide B、They can hover in the air for a long time C、The ratio of their wing length to wing width is very important D、They are the most energetic flier in nature
(2)、Which is the right order of Professor Lentink's research?

①Tested wings from different species of hummingbirds

②Got resources from museums

③Analyzed the results and drew a conclusion

④Tested the blades from a micro-helicopter

A、①②③④ B、②①③④ C、②④①③ D、②①④③
(3)、According to Professor Lentink, what will be the focus of future experiments?

A、To know how hummingbirds can fly in a strong wind B、To know how hummingbirds change direction so quickly C、To develop a new kind of helicopter D、To study the secrets of hummingbirds
举一反三

阅读理解

    The kindly “Chinese Fortune Grandpa” wearing Han Chinese clothing and holding a fortune bag debuted (亮相) at the Imperial Ancestral Shrine in Beijing on the day after Christmas. The final image of the Chinese gift-giver was selected through a global design competition against “Santa Claus”, according to a report by Guangming Daily.

    Many Chinese cities have been filled with Christmas neon lights, Christmas songs, Christmas trees, and the images of “Santa Claus”in recent days. As a matter of fact, foreign festivals are becoming more popular than certain traditional Chinese festivals among the Chinese people, particularly the youth. “Certain traditional festivals have died out because people have forgotten their spiritual meanings, ”said noted writer Feng Jicai. More and more Chinese people are beginning to exchange gifts on Valentine's Day and Christmas. However, many of them know nothing about Chinese New Year pictures or sugarcoated figurines(小糖人), and have never heard suona music. Certain folk customs on the Dragon Boat Festival, Tomb Sweeping Day, and other traditional festivals have gradually disappeared. Under such circumstances, even the “Chinese Fortune Grandpa” is unlikely to defeat “Santa Claus”.

    However, it is not a bad thing to some extent. It constantly reminds people to restore the “true face” of traditional festivals. China has listed traditional Tomb Sweeping Day, Dragon Boat Festival and Mid-Autumn Festival as legal holidays, which brings more paid leaves to the public, and helps to awake the public awareness of traditional festivals.

    In modern society, festival is a carrier of culture and its meaning largely depends on their understandings and usages by people. Compared with foreign festivals, traditional Chinese festivals are not inferior (次于) in cultural meanings, but lack of fashion sought by modern people. If people do not appreciate the historical culture contained by traditional festivals, and only take pleasure-seeking as the most important, the significance of traditional festivals will fade away and the inheritance (继承) of fine traditional culture will be cut off.

阅读理解

    Well, parents, surprise! Lots of us are using Twitter and Facebook to thumb rides, and not just to school. It's awkward to be refused when you call a friend and ask for a ride. But with Twitter, you just look for other people heading the same way.

    It may sound risky, so many teens stay within their own social circles to find rides, and don't branch out beyond friends when asking on Twitter just like me, but to some young people, especially those taking longer trips, stranger danger is less of a concern.

    “I think the digital connection of young people is really important, because younger generations grew up sharing things on line, sharing files, photos, music, etc, so they've been very used to sharing,” said Juliet Schor, a sociology professor at Boston College.

    The sharing economy got big during the recession (经济衰退), allowing people to access more goods, services using technology and even to share costs. And that technology, for me, is what the car was for my mom, a gateway to more freedom, like what my friend Earl says, “The symbol of freedom isn't the car any more because there's technology out there connecting you to a car.”

    According to the researchers at the University of Michigan, 30 years ago, eight in ten American 18-year-olds had a driver's license compared to six in ten today. So it's not that surprising that on my 16th birthday I wasn't rushing to get a license but an iPhone.

“Driving, for young people, does mean they have to disconnect from their technology, and that's a negative. So if they could sit in the passage side and still be connected, that's going to be a plus.” Schor continued.

    To me, another plus is that ridesharing represents something, something much bigger than trying to save money. I see it as evidence that people still depend on each other. My generation shares their cars and apartments the way neighbors used to share cups of sugar. For the system to work, some of us still need our own cars. But until I get my own version of the silver Super Beetle, you can find me on Twitter.

阅读理解

    For many of us, talking about money is embarrassing, especially revealing our income and spending habits in public. So it's no wonder that seeking investment advice from computer program is so popular.

    Consultancy firm Accenture found that 68% of global consumers would be happy to use robot-advice to plan for retirement, feeling it would be faster, cheaper, and fairer than human advice. “Many of our customers say they feel awkward in face-to-face meetings, preferring an online experience where they don't feel nervous,” says Lynn Smith, a director of robot-advice firm Wealth Wizards. So how does robot-advice work and is it really any better than traditional financial advice?

    Robot-adviser firms use algorithms (算法) to analyse your financial situation and goals and then work out an investment plan to suit you. Basically, you answer lots of questions online about your income, expenses, family situation, attitude to risk and so on, and then the algorithm allocates (分配) your savings to a series of investments, from index funds that aim to imitate a particular stock market index or sector, to fixed-income bonds.

    Robot-advice is certainly growing in popularity. But are we really happy to give up the human adviser completely? “No” is the short answer. Accenture finds that a significant proportion of us still want human interaction, particularly when our finances are complex. “When a customer needs advice surpassing a number of different regulatory regimes, human advice will be required, says John Perks, managing director of life and pensions at UK insurer LV, which launched its Retirement Wizard robot-advice service two years ago.

    The truth is that only about a quarter of funds managed by clever humans overcome the market as a whole, so when you take into account the much higher management fees you pay for that kind of service, the performance difference is likely to be marginal (微不足道的) for most of us.

    The robots may be coming, but in this case at least, they seem to be on the side of the small investor trying to save for a comfortable retirement.

阅读理解

    If you are taking vitamin supplements to reduce your risk of heart disease or cancer, a group of health experts want you to know that those vitamins may actually increase your risk of cancer.

    The US Preventive Services Task Force came to this conclusion after reviewing dozens of studies.

    Nearly half of adults in the US take at least one vitamin or mineral supplement on a regular basis. These pills are advertised as a way to promote general health. In some cases, manufacturers promote them as cancer fighters and heart protectors.

    Studies in animals and in laboratory dishes suggest that oxidative(氧化性的) stress contributes to diseases like cancer and heart disease. If so, there is a reason to believe that antioxidants—including beta-carotene, vitamins A, C, and E—could be useful as preventive medicines.

    But when the Task Force examined the medical evidence on vitamins, it found “inadequate(不充分的) evidence” to support the claims that vitamin and mineral supplements benefit healthy adults.

    “Cardiovascular(心血管的) disease and cancer have a significant health impact in America, and we all want to find ways to prevent these diseases,” Dr. Virginia Moyer, who heads the Task Force, said in a statement. But so far, she added, the medical evidence does not show that taking vitamins is helpful in this regard.

    However, the Task Force did find “adequate evidence” that people with a raised risk for lung cancer actually increase their risk further by taking beta-carotene, a precursor of vitamin A.

    The Task Force recommendations of taking vitamins regularly apply to healthy adults aged 50 and older who don't have “special nutritional needs”. The advice does not apply to children, women who are pregnant or may become pregnant, people with chronic illnesses, or people who have to take supplements because they can't get all their essential nutrients from their diet.

阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

    In a world full of Kates and Sarahs, you might think it'd be nice to have a unique name to help me stand out in a crowd. Being named Stacia (pronounced stay-sha) is not so lucky to me. I'll get the occasional "Your name is so pretty" after introducing myself, but eventually my name causes me more frustration than happiness. For example, Microsoft Word always tries to tell me my name isn't a real word. I couldn't even pronounce my own name correctly until I was five.

    I once had a professor who pronounced my name differently each class. After a while I stopped correcting him, and that's been my reaction to strangers ever since. In other cases, I'd rather tell the seller my name is Staci and save both of us, as well as the people standing behind me in line, valuable time.

    Meeting new people gives me anxiety, and I've realized it's easier just to lie about my name altogether in certain cases. Actually I did—so many times that Brittany is now my chosen "going out" name. It may have caused some confusion for my friends at first, who would let out a small laugh or have a confused look, but I've trained them to keep a straight face whenever I whip out this fake (假的) name. Now going out on weekends means I get to have a shift of identity.

    Frustrations aside, being the owner of a unique name has made me appreciate the little things in life. Someone pronouncing or spelling my name correctly on the first try brings me more joy than it probably should. I also love it when I meet another Stacia and we get to bond over our shared struggles.

    To any other Stacias reading this—I feel you, girl. P. S. I apologize to any real Brittanys out there. Thanks for letting me borrow your name.

阅读理解

    Developing healthy eating habits starts from childhood, therefore it is important for parents to teach and provide children with a healthy diet. DPHSS administrator of the Bureau of Nutrition Services, Charlie Morris told KUAM News, "A healthy diet for a child consists of a lot of fruits and vegetables in the diet limiting the amount of simple sugars in the diet and high fat food and highly processed(加工的) food."

    This means staying away as much as possible from food such as chips, cookies, candies and sugary drinks, as all children need to have meals which involve a well-balanced diet. Community nutritionist(营养学家) Thelma Romoso said, "The fruit, the vegetable, the grain, the protein, and also the milk, the diary product, so for the fruits it's easy for a mother to go into the two plus three concept of fruits and vegetables or five a day."

    This concept means that there are at least two servings of fruits a day, three servings of vegetables a day which can be served for lunch and dinner. As for protein parents can make a variety of dishes from chicken, beef, fish or even dried beans to make sure the child gets three servings a day.

    Morris said that the child's hunger level controls how much is eaten and the parent controls what and when the meal is offered, saying, "Mom needs to ensure that the food offered is good food for the child to eat and throughout the day depending on how active they are, snacks(零食) are not a bad thing, so the mom should offer good kinds of snacks."

    When it comes to preparing your child's lunch and snacks for school, make sure to keep in mind that the food you provide should not only be a source of energy but also be nutritionally beneficial such as fresh fruits, and whole grain bread. But parents must be sure to remember that a good nutritional diet must be balanced with physical activity, namely it is important that children get outside and run around and play and get activity in addition to eating a good diet.

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