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题型:阅读理解 题类:常考题 难易度:困难

2016届河北正定中学高三上期中考试英语试卷

阅读理解

    Can eating a chocolate bar every day really prevent age-related memory loss? No. But a new research shows that large amounts of flavones, substances found in cocoa, tea and some kinds of vegetables, may improve age-related memory failure.

    Dr. Scott Small is a professor of neurology (神经病学) at Columbia University in new York City. He is the lead writer of a research paper describing the effects of cocoa flavones on brain activity. His study involved 37 volunteers aged between 50 and 69. Researchers gave them a high-level flavones drink made from cocoa beans or a low-level flavones drink. For a period of three months, some subjects got 900 milligrams of flavones a day. The others got 10 milligrams of flavones each day. Brain imaging and memory tests were given to each study subject before and after the study. Dr. Small says that the subjects who had the high-level flavones drink showed much improvement on memory tests.

    The researchers warn that more work is needed to be done because this study was performed only on a small group. Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavones capsules(胶囊). The study subjects will be divided into two groups and will take two pills per day. The capsules used will all look the same. But one group's capsules will contain flavones, while the other group will take capsules made of an inactive substance, or placebo

    Dr. Manson says it's not necessary for people to start eating more chocolate, because a person would have to eat a huge amount of chocolate to get the same level of flavones given to the rest subjects. He adds many manufacturers have planned to remove the flavones from their chocolate products. Similarly, Dr. Manson says a cocoa-based flavones extract(提取)may be developed in the future But he says that more studies are needed to see how much flavones is good for our health.

(1)、What was done to the subjects after Dr. Small's study?

A、They were asked to take a high-level flavones drink. B、They were given capsules containing flavones. C、They were given brain imaging and memory tests. D、They were asked to take two pills of flavones capsules per day.
(2)、What's the similarity of the two experiments?

A、Both use high-level flavones capsules. B、The number of the subjects is the same. C、Drinks and placebos are used in both experiments. D、The subjects are divided into two groups in both experiments.
(3)、Why will Dr. Manson carry out the four-year study?

A、To prove the first experiment is wrong. B、To carry out the experiment further. C、To test how much flavones can improve our memory. D、To show eating chocolate is better to improve memory.
(4)、What can we learn from the last paragraph?

A、It's not necessary for us to eat chocolate. B、The more we eat flavones, the better our health will be. C、In the future we can get flavones without eating chocolate. D、It's easy for people to get the same level of flavones given to the test subjects.
举一反三
阅读理解

    Schools across the world are trying to come up with solutions to keep students active. Some are replacing traditional classroom chairs with exercise balls or standing desks. At Ward Elementary School in Winston, North Carolina students have adopted a new program that requires riding fixed bikes while reading.

    'Read and Ride' is the creation of school counselor Scott Ertl, who came up with the idea while he was exercising and reading at the gym. Believing it would be a fun way to convince students to become more active, he placed one in the corner of his classroom and encouraged them to use it during independent reading classes.

    It was so popular that Ertl decided to add more bikes and offer the Read and Ride program to the entire school. Today Ward Elementary has a dedicated exercise room filled with bikes that can be used by students while completing their daily reading assignments.

    Besides making reading more fun, the program also helps students exercise at a comfortable pace without the pressure that comes with regular sports-related activities. It is also a perfect way to release energy during days when the weather is not helpful to outdoor activities.

    Most importantly, however, are the program's academic benefits. A year after Read and Ride was introduced at Ward Elementary School, students actively involved in the program demonstrated an astonishing 83% reading proficiency. Those that had not taken advantage of the exercise bikes tested at a much lower, 41%.

    Though the substantial improvement in academic achievement cannot all be attributed to programs like Read and Ride, experts believe they are a significant contributor. That's because studies have shown that physical activity stimulates(刺激) brain cells and helps prepare it for learning. As word of the difference made by this easy to execute exercise program spreads, don't be surprised to find schools across the country adopt “Read and Ride” for their students.

阅读理解

    Nowadays there is less and less contact between the old and the young. There are many reasons for this, but the result is the same: increasing numbers of children without grandparents and old people who have no contact with children. And more old people who are lonely and feel use- less, along with more and more families with young children who desperately need more support. It's a major problem in many societies.

    That's why intergenerational programmes, designed to bring the old and the young together, are growing in popularity all over the world, supported by UNESCO and other local and international organisations. There are examples of successful initiatives all over the world. Using young people to teach IT skills to older people is one obvious example. Using old people as volunteer assistants in schools is another, perhaps reading with children who need extra attention.

    One successful scheme in France is combining a residential home for the elderly with a creche/nursery school in the same building. The children and the residents eat lunch together and share activities such as music, painting, gardening and caring for the pets which the residents are encouraged to keep. In the afternoons, the residents enjoy reading or telling stones to the children and, if a child is feeling sad or tired, there is always a kind lap to sit on and a cuddle (依偎). There are trips out and birthday parties too.

    The advantages are enormous for everyone concerned. The children are happy because they get a lot more individual attention and respond well because someone has lime, for them. They also learn that old people are not different or frightening in any way. And of course, they see illness and death and learn to accept them. The residents are happy because they feel useful and needed. They are more active and more interested in life when the children are around and they take more interest in their appearance too. And the staff are happy because they see an improvement in the physical and psychological health of the residents and have an army of assistants to help with the children.

阅读理解

    Eve was waiting in the corridor outside her class. She was feeling sick. She had two exams that day and physics was first. She really hated physics. It was her worst subject. Lisa looked back at her, and then looked away quickly. Eve thought she looked guilty. She didn't have a problem with physics. She didn't have a problem with anything... Miss Perfect!

    "Hi, Eve! So what's wrong with you and Lisa?" asked Tina, "I thought you were friends." "Yes, so did I," said Eve. "But she hasn't spoken to me for two weeks now. She promised to help me review for the physics exam too, but then she's ignored all my calls and texts."

    While in the exam, Eve found Lisa was holding her phone on her knee under the table and reading from it. Eve couldn't believe it! Is that how Lisa always got such good grades? She thought about telling the teacher, but she hesitated. The next exam was history. That was Eve's favorite subject but she couldn't concentrate. She didn't know what to do about Lisa. Just then, Mr. Reed, their teacher, walked past. "Mr. Reed…"

    Lisa was called to the teachers' office and there waited Mr. Reed…

    The history test was over. Eve was walking towards the school gate when she heard footsteps behind her. It was Lisa. Eve could see that she had been crying. "Listen," said Lisa. "I'm really sorry I haven't answered your calls, but my dad had a heart attack two weeks ago and he's in hospital. He had a big heart operation today and I was very worried about him. So I was reading texts from my mum, but Mr. Reed caught me. He thought I was cheating. He believes me now, but I have to take the exam again. I'm sorry I didn't tell you what was happening. Will you forgive me?"

阅读理解

    Do you know that junk food isn't healthy? Of course you do! Do you eat it anyway? Of course you do! But a new study shows teaching adolescents about the ways food companies fool them into thinking junk food is cool can encourage kids to fight back—by eating healthier.

    The pull of junk food can be super-strong. It's designed to tasty; which makes eating well one of the great health challenges of our time. Everyone from doctors to the government has been trying to handle it. Yet we keep eating junk food.

    Professor Christopher Bryan says, "Food companies want you to want junk food." They spend millions of dollars coming up with new ways to^ promote junk food consumption. They hire scientists to make new junk food almost irresistible. They might do this, for example, by adding more sugar. Rats fed junk food for six weeks will even walk across a floor that gives them electric shocks just to get more of such food.

    Food ads often make unhealthy junk food seem healthy by featuring professional athletes, fit-looking pop stars and smiling, active teens. "We thought when the students learned this, it would matter to them," Bryan says. He worked with 8th graders at a Texas school. Half of them got a lesson Bryan created. It focused on the ways junk food is advertised, or marketed. A second group received lessons that focused on health. These lessons informed students junk food is had, and that foods like apples or carrots are a better choice. The students learned a bad diet can lead to major weight gain, and that being overweight puts people at risk for serious diseases. They also learned how eating well now can keep you healthy when you're older.

    After the lessons, the kids in both groups were asked how they felt about junk food. Most didn't have positive feelings about these unhealthy foods.

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