练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Chocolate is good for your heart, skin and brain. Usually, people think that chocolate is bad for their health. They describe chocolate as “something to die for” or say “death by chocolate”．Now they should bite their tongues! Evidence(证据) is showing that some kinds of chocolate are actually good for you in the following ways:
    A happier heart
    Scientists at Harvard University recently examined 136 studies on cocoa—the main ingredient in chocolate and found that it does seem to strengthen the heart．Studies have shown heart benefits from increased blood flow．These benefits are the result of cocoa’s chemicals, which seem to prevent both cell damage and inflammation(炎症)．
    Better blood pressure
    If yours is high, chocolate may help．Jeffrey Blumberg from Tufts University recently found that people with high blood pressure who ate 3.5 ounces of dark chocolate per day for two weeks saw their blood pressure drop quickly．
    Muscle magic
    Chocolate milk may help you recover after a hard workout(锻炼)．In a small study at Indiana University, people who drank chocolate milk between workouts did better on a tiredness test than those who had some sports drinks．
    Better for your skin．German researchers gave 24 women a half-cup of special cocoa every day．After three months, the women’s skin was moister(滑润的)and smoother．The research shows that chocolate helps protect and increase blood flow to the skin, improving its appearance．
    Brain gains
    It sounds almost too good to be true, but research suggests that chocolate may improve your memory, attention span, reaction time, and problem-solving by increasing blood flow to the brain．
    小题1:Which of the following is wrong?                                            
    A．Coca’s chemicals can prevent both cell damage and inflammation.
    B．Chocolate may help you lower your blood pressure.
    C．People early know chocolate is good for their health.
    D．chocolate may improve your memory, attention span, reaction time, and problem-solving.
    小题2:What’s the meaning of the underlined sentence in the fourth paragraph?
    A．Sports drinks are better than chocolate milk．
    B．Sports drinks can make people easy to be tired．
    C．Drinking milk can keep you energetic at work．
    D．We should drink chocolate milk between times when we work hard．
    小题3:What’s the main idea of the text?
    A．Chocolate, a Healthy FoodB．More Chocolate, Less Health
    C．Chocolate and Blood PressureD．Advice on Eating Chocolate
    小题4:The conclusion that chocolate may help lower blood pressure was brought out by       ．
    A．scientists at Harvard University
    B．Jeffrey Blumberg from Tufts University
    C．scientists at Indiana University
    D．German researchers
    小题5:What’s the meaning of “bite their tongues” in the first paragraph?
    A．Think of it．．B．Speak up．C． Stop talkingD．Listen to it

    小题1:C
    小题1:D
    小题1:A
    小题1:B
    小题1:C
    略
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源：不详 题型：阅读理解

    Hilton English Language Center
    Information for New Students
    CLASS TIME: 9:00a.m.---10:30a.m., 11:00a.m.---12:30p.m., 1:30p.m.---3:00p.m.. The Language Center is open from Monday to Friday. Each class has one afternoon free per week. On the first day, go to the lecture hall to check your timetable.
    SELF-ACCESS: The language laboratory (Room 1110) is open Monday to Friday from 3:15p.m. to 5:00p.m. for all full-time students.
    You can learn how to use computers for language games or word-processing（文字处理）. There are tapes for students to borrow to practice their English. Go in and ask the teacher to show you. If you plan to take public examinations, there are dictation（听写）and listening comprehension tapes for you to practice with. There are cloze exercises on the computers. Ask your class teacher for a list of past exam essays. Students can borrow tapes to take home but they must be returned after two days.
    ATTENDANCE（出勤）：All students are expected to attend classes regularly. Students who do not attend classes will be reported to OSS. Eighty percent attendance is required for students to receive their certificates（证书）when they finish their courses. It is also required by OSS for an extension to your visa.
    BOOKS: If students are given course books, the books are their responsibility. If a book is lost, the student will be expected to pay for it.
    If students wish to buy books, there is a bookshop in the college specializing in English books (Room 3520).
    小题1: When do classes begin and end on a full day?
    A．9:00a.m. ---1:30p.m.B．9:00a.m. ---3:00p.m.
    C．9:00a.m. ---3:15p.m.D．3:15p.m. ---5:00p.m.
    小题2: How many afternoons does a class meet each week?
    A．Two.B． Three.C．Four.D．Five.
    小题3:Which of the following statements is TRUE?
    A．No teachers are in the language lab.
    B．90% attendance is required for the students.
    C．Books can’t be taken out of the center.
    D．Students can prepare for exams by listening to tapes.
    小题4: Timetable can be seen in _____.
    A．the lecture hallB．Room 3520C．the classroomD．Room 1110

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States.
    The result: thirteen percent fewer heart attacks. Eight percent fewer strokes. Four percent fewer deaths. Eleven percent fewer new cases of heart disease. And two hundred forty billion dollars in health care savings.
    Researchers found it could prevent one hundred thousand heart attacks and ninety-two thousand deaths every year.
    The study is in the New England Journal of Medicine. Kirsten, at the University of California, was the lead author. She says people would not even notice a difference in taste with three grams, or one-half teaspoon, less salt per day. The team also included researchers at Stanford and Columbia University.
    Each gram of salt contains four hundred milligrams of sodium, which is how foods may list their salt content.
    The government says the average American man eats ten grams of salt a day. The American Heart Association advises no more than three grams for healthy people. It says salt in the American diet has increased fifty percent since the nineteen seventies, while blood pressures have also risen. Less salt can mean a lower blood pressure.
    New York City Mayor Michael Bloomberg is leading an effort called the National Salt Reduction Initiative. The idea is to put pressure on food companies and restaurants.
    Mayor Bloomberg has already succeeded in other areas, like requiring fast food places in the city to list calorie information. Now a study by the Seattle Children's Research Institute shows how that idea can influence what parents order for their children.
    Ninety-nine parents of three to six year olds took part. Half had McDonald's menus clearly showing how many calories were in each food. The other half got menus without the calorie information.
    小题1: How many heart attacks will occur in the US every year？ 
    A．nearly 800,000.B．24,000.
    C．100,000.D．92,000.
    小题2:We can learn from the passage that         .  
    A．Americans ate no more than 5 grams of salt per day in the 1970s
    B．the American Heart Association suggest less than 3 grams of salt every day
    C．a reduction in salt in the diet helps lower blood pressure
    D．all the heart diseases result from eating more salt
    小题3:The National Salt Reduction Initiative aims to         . 
    A．advise Americans to eat less salt
    B．put pressure on food companies and restaurants
    C．require fast food places to list calorie information
    D．attract the public attention to the problem
    小题4:All the following are related to the salt in diet except         .  
    A．strokesB．heart attacks
    C．blood pressuresD．stomach diseases
    小题5:The best title of the passage of the passage is         . 
    A．Less salt can mean more life
    B．Prevent heart attacks and deaths
    C．The National Salt Reduction Initiative
    D．Americans should eat less salt

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    I know what you’re thinking : pizza （比萨饼）? For breakfast? But the truth is that you can have last night’s leftovers in the a. m. if you want to
    I know lots of women who skip breakfast （不吃早餐）, and they have a ton of different excuses for doing it . Some say they don’t have time,others think they’re “saving” calories （卡路里）, and still others just don’t like breakfast food .
    But the bottom line is that eating in the morning is very important when you’re trying to lose weight. “Eating just about anything from 300 to 400 calories would be better than nothing at all,” says Katherine Brooking , R , D , who developed the super-easy eating plan for this year’s “SELF CHALLENGE”. And even pizza can be healthy if it’s loaded with vegetables, and you stick to one small piece.
    Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southem California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal.
    So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night’s leftovers-it may sound crazy, but if it works for you, do it! I find if I tell myself, “You can always eat it tomorrow,” I put away the leftovers instead of eating more that night. Try it,and then you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.
    小题1: The underlined word “leftovers” in Paragraph 1 probably means__________.
    A．food remaining after a mealB．things left undone
    C．meals made of vegetablesD．pizza topped with fruit
    小题2: What can we infer from the text?
    A．Working women usually have breakfast in a hurry.
    B．Many people have wrong ideas about breakfast.
    C．There are some easy ways of cooking a meal.
    D．Eating vegetables helps save energy.
    小题3: According to the last paragraph, it is important to____________.
    A．eat something for breakfastB．be careful about what you eat
    C．heat up food before eating itD．eat calorie-controlled food
    小题4:The text is written mainly for those_____________.
    A．who go to work earlyB．who want to lose weight
    C．who stay up lateD．who eat before sleep

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Making greener choices and encouraging healthy lifestyles can promote your health and benefit the environment．Here are some guidelines to follow:
    Choose foods thoughtfully
    Americans have never had such a variety or abundance of food to choose from．Besides so many choices, we now hear about our "food print", the amount of land needed to supply one person's nutritional needs for a year．Do we buy cherry tomatoes from Mexico or tomatoes grown locally in a hothouse? Do．we get the Granny Smiths from the fanners' market or the supermarket? Is organic produce healthier for us and the planet?
    These are very complex issues that require analysis of many criteria, including the energy used in producing and transporting the food, as well as the type of soil and methods of raising the food．
    Despite the complexities, there are some general guidelines you can follow．For instance, eat less meat or eat low on the food chain．Your doctor may have recommended you to restrict your consume red meat because of its too much fat content．Beyond that, there are environmental reasons, too. Raise food animals contributes substantially to climate change because a meat-based diet requires more land, energy and water than a plant - based one．
    Drinking plenty of fluids is significant during hot weather or when exercising．But is bottled water the way to go? You may not think so when seeing the true costs．Based on a survey, manufacturing the 30 - plus billion plastic water bottles can produce more than 2．5 million tons of carbon dioxide and use here times the amount of water in the bottle．Adding in transportation, the energy used comes to over 50 million barrels of oil equivalent （等价物）．Consequently, skip the bottled water and drink tap water, both at home and at restaurants．Additionally, bottled water is not necessarily cleaner than tap.
    小题1:In Paragraph 2 the author puts forward three questions mainly _____．
    A．to prove Americans have less food to choose from
    B．to show us the shopping habits of most Americans
    C．to indicate Americans tend to buy food from abroad
    D．to remind people to reconsider their food purchase
    小题2:The doctor recommends eating less red meat partly because _____．
    A．it contains too much fatB．it costs a lot in transportation
    C．it is too low on the food chainD．it isn't related to climate change
    小题3:According to the text, which of the following is true?
    A．Americans all prefer to buy cherry tomatoes from Mexico．
    B．The plant - based diet is responsible for the climate change．
    C．Americans have a variety of food to choose from．
    D．Organic produce is the only choice for Americans．
    小题4:Based on the last paragraph, we know that _____．
    A．bottled water is cleaner than tap water
    B．tap water is economical as well as eco - friendly
    C．bottled water is more available than tap water
    D．tap water uses one - third the cost of bottled water
    小题5:What is the best subtitle for the last paragraph?
    A．Skip bottled water, carry tapB．Drink bottled water
    C．Produce plastic water bottlesD．Save water resources

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

                               LIPITOR
    ABOUT LIPITOR
    Lipitor(【医】立普妥<降血脂药> )is a prescription medicine．Along with diet and exercise，it lowers "bad，'cholesterol(胆固醇)in your blood．It can also raise "good'' cholesterol.
    Lipitor can lower the risk of heart attack in patients with several common risk factors，including family history of early heart disease，high blood pressure，age and smoking.
    WHO IS LIPITOR FOR?
    Who can take LIPITOR：
    ·People who cannot lower their cholesterol enough with diet and exercise
    ·Adults and children over l0
    Who should NOT take LIPITOR：
    ·Women who are pregnant，may be pregnant，or may become pregnant. Lipitor may harm your unborn baby.
    ·women who are breast-feeding．Lipitor can pass into your breast milk and may harm your baby.
    ·People with liver(肝脏)problems
    POSSIBLE SIDE EFFECTS OF LIPITOR
    Serious side effects in a small number of people：
    ·Muscle(肌肉)problems that can lead to kidney(肾脏)problems，including kidney failure
    ·Liver problems．Your doctor may do blood tests to check your liver before you start Lipitor and while you are taking it．
    Call your doctor right away if you have：
    ·Unexplained muscle pain or weakness，especially if you have a fever or feel very fired
    ·Swelling of the face，lips，tongue，and／or throat that may cause difficulty in breathing or swallowing
    ·Stomach pain
    Some common side effects of LIPITOR are：
    ·Muscle pain
    ·Upset stomach
    ·Changes in some blood tests
    HOW TO TAKE LIPITOR
    DO：
    ·Take Lipitor as prescribed by your doctor.
    ·Try to eat heart-healthy foods while you take Lipitor.
    ·Take Lipitor at any time of day, with or without food.
    ·If you miss a dose(一剂)，take it as soon as you remember. But if it has been more than12 hours since your missed dose，wait．Take the next dose at your regular time.
    Don't：
    ·Do not change or stop your dose before talking to your doctor.
    ·Do not start new medicines before talking to your doctor.
    小题1:What is a major function of Lipitor?
    A．To help quit smoking.B．To control blood pressure.
    C．To improve unhealthy diet.D．To lower "bad" cholesterol.
    小题2:Taking Lipitor is helpful for ____________________.
    A．breast-feeding womenB．women who are pregnant
    C．adults having heart diseaseD．teenagers with liver problems．
    小题3:If it has been over 12 hours since you missed a dose, you should____________.
    A．change the amount of your next doseB．eat more when taking your next dose
    C．have a dose as soon as you rememberD．take the next dose at your regular time
    小题4: Which of the following is a common side effect of taking Lipitor?
    A．Face swelling.B．Upset stomach.C．Kidney failure.D．Muscle weakness.
    小题5:What is the main purpose of the passage?
    A．To teach patients ways for quick recovery.
    B．To present a report on a scientific research.
    C．To show the importance of a good lifestyle.
    D．To give information about a kind of medicine.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Health officials issued a waring over common energy-saving l一ghtbulbs(灯泡) after research showed some types could potentially harm the skin and may even raise the risk of cancer.
    A study by the Health Protection Agency (HPA) found that some eco-friendly lightbuulbs release levels of ultraviolet (UV) (紫外线) radiation that are above recognized safety limits. The agency urged people who work with lamps nearby to avoid spending more than one hour within a foot of the eco-friendly bulbs. The warning was directed at those using desk lamps for long periods, such as jewellery makers, and others who might have lights close to their faces, such as car mechanics.
    John O’Hagan, a scientist at the HPA’s centre for radiation, chemical and environmental dangers, began tests on the ligthbulbs after patient groups raised concern about them. Among the groups were patients with a skin disease called lupus, which makes people highly sensitive to light.
    The tests measured UV light from the lamps and found the highest levels of UV radiation, measured 2cm from the lightbulbs, were equivalent to being outside in direct sunlight in the summer. The most immediate risk from the lightbulbs is a reddening of the skin similar to sunburn, but there is also a small increased risk of skin cancer associated with this, again similar to that of sunburn.
    The risk of health problems from the lightbulbs was not so high that people should remove them from their homes. People are advised to avoid using open lightbulbs for long close work until the problem is sorted out. It has confirmed that the government will not be reviewing its strategy on introducing energy efficient lightbulbs.
    小题1:The underlined word “equivalent” in paragraph 4  most probably means ______.
    A．equalB．vitalC．relevantD．harmful
    小题2:In order not to be harmed by the UV radiation from some lightbulbs, people should ______.
    A．stop using eco-friendly lightbulbs at home
    B．avoid using open lightbulbs for long close work
    C．take care not to expose their skin to direct sunlight
    D．urge the government to ban the use of lightbulbs
    小题3:In the next part, the author would most probably further explain _____.
    A．why people needn’t remove the lightbulbs from their homes
    B．how researchers have planned to sort out the problem
    C．how the government has responded to HPA’s discovery
    D．how long people should work close to the open lightbulbs
    小题4:We can learn from the passage that ____.
    A．health officials issued a warning over common lightbulbs.
    B．jewellery makers should avoid working with the eco-friendly bulbs for more than one hour
    C．John O’Hagan did tests on the lightbulbs with some patients
    D．people are advised to avoid using open lightbulbs for long close work

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    A number of scientific studies have suggested that repeatedly heading a football could increase the risk of developing dementia (痴呆症) in later life.
    In 2002, former England international footballer Jeff Astle died aged 59. A coroner (验尸官) said that Astle died from a brain disease likely to have been caused by “repeated small damages to the brain” related to heading a heavy leather football.
    Dr. Scott Delaney, research director of emergency medicine at McGill University Health Center in Montreal, Canada, has also researched soccer-related head injury and agrees that head-to-head or elbow-to-head blows are the real risk.
    In 2007, Delaney carried out a study on footballers aged between 12 and 17 that showed they were half as likely to be concussed (使脑部受到震荡) wearing headgear (帽) than without.
    He said youngsters have a higher risk of head injury than adults because their heads are thinner and less able to absorb shock. To make matters worse, their neck muscles aren’t as well developed and they often lack the correct heading technique that can help throw away the force of the ball.
    Delaney recommends that children wear headgear when playing football and says his two eldest children wear head protection playing the sport. But he admits that children can be unwilling to be the first to wear head protection—especially when their football heroes play without it.
    While headgear can protect footballers from being concussed during a match, no one knows the long-term effects of repeated “sub-concussive” blows to the head.
    Delaney says that while there is indirect evidence that a career in soccer can lead to dementia, no one has yet found a sure link between the two. He says proving a link would mean monitoring hundreds of footballers for three or four decades—and that would take a lot of funding.
    小题1:Which might be the best title of the passage?
    A．Playing football may lead to brain damage.
    B．Repeated small damages to the brain.
    C．Footballers should wear headgear when playing. .
    D．Evidence to dementia.
    小题2:According to Delaney’s research, what is the most risky injuries to head?
    A．Long-term effects of blows.
    B．Wearing head protection.
    C．Underdeveloped neck muscles.
    D．Head-to-head or elbow-to-head blows.
    小题3: Children are unwilling to wear headgear because they think _____ .
    A．headgear is harmful to their headsB．headgear influences their skills
    C．they should follow their idolsD．they mustn’t lead the fashion
    小题4:It can be inferred from the last paragraph that _____ .
    A．Delaney has studied dementia for three or four decades
    B．few footballers would like to be studied in the research
    C．funding is important in order to carry out the research.
    D．no one can find the link between playing football and dementia

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

      Just five minutes of exercise a day outdoors can improve mental health, according to a study.
    Researchers from the University of Essex, UK have found that as little as five minutes of a “green activity” such as walking, gardening, cycling or farming could help to improve mood and increase self-esteem (自信).
    Many studies have shown that outdoor exercise can reduce the risk of mental illness and improve a sense of well-being, but the new study, led by Jules Pretty and Jo Barton, was the first to determine how much time needed to be spent on green exercise for the benefits to show.
    Barton and Pretty looked at data from 1,252 people of different ages, genders (性别) and mental health status (情况) taken from 10 studies in Britain.
    They analyzed their different outdoor activities including walking, gardening, cycling, fishing, boating, horse-riding and farming in locations such as a park, garden or nature trail (路径).
    They found that the mental health changes were seen after just five minutes. With longer periods of time exercising in a green environment, the positive effects were more apparent.
    Looking at men and women of different ages, the researchers found the health changes were particularly strong in the young and the mentally ill.
    Green and blue
    A bigger effect was seen with exercise in an area that also contained water – such as a lake or river.
    “This is because historically we are drawn to water to survive and it is in our genetic (遗传的) make-up to be at one with nature,” the researchers wrote in their report.
    Pretty said those who were generally inactive, or stressed, or with mental illness would probably benefit the most from “green exercise”.
    “Employers, for example, could encourage staff in stressful workplaces to take a short walk at lunchtime in the nearest park to improve mental health.”
    He also said exercise programs outdoors could benefit youth offenders.
    小题1:How is the study this article refers to different from other studies?
    A．It involved more people.
    B．It took longer to finish the research.
    C．It determined the exact amount of time needed.
    D．It was led by just two researchers.
    小题2: What can we conclude from the findings of the study?
    A．Just five minutes of “green exercise” daily can help improve mental health.
    B．Gardeners and farmers do not need “green exercise”.
    C．Walking in a park with a lake will weaken the effect.
    D．“Green exercise” is not suitable for the mentally ill.
    小题3:. According to Pretty, _______ would probably benefit the most from “green exercise”.
    A．stressed, inactive peopleB．office workers
    C．youth offenders D．women and children
    小题4: What is the main problem discussed in this article?
    A．Physical well-being. B．Outdoor exercise.
    C．Mental illness. D．Harmony with nature.

    查看答案和解析>>

    同步练习册答案