Teenagers who do not get enough of the nutrients commonly found in fruits and fish are easier to have bad lungs, coughing and wheezing (喘息).Teens who eat the least of fruit and especially vitamin C have weaker lungs compared to the others.
Teens who take in less vitamin E, found in vegetable oil and nuts, are more likely to have asthma(哮喘), Jane Bums at the Harvard School of Public Health found.
Based on these findings.Bums said that current recommended dose(一劑)of vitamin C, 85 mg a day, may not be enough for teens to have healthy lungs.Teens who eat less fruit and don't take in enough fatty acids (脂肪酸) are more likely to have asthma and the signs of breathing difficulty.
Proper amounts of fatty acids are protective, Bums said, though fish, the best source of fatty acids, is particularly unpopular with teenagers.Fatty acids are also found in some nuts as well as some green vegetables'.Smokers who avoid vitamin C will increase their chances of coughing, wheezing and developing phlegm(痰).
More than 80 percent of teens are getting their recommended doses of vitamin C - mainly from fruit drinks."I wouldn't approve of drinking them, but at least they're getting their vitamin C from somewhere," Burns said.
Burns added that there are several different ways to get the necessary nutrients."I think vitamin supplements are fine.I think adding vitamin D to orange juice is fine.But I do think there are added benefits that we don't fully understand of eating whole foods like fruits and vegetables and fish," she said.The researchers did not account for poverty and other factors that often distinguish less-healthy eaters and may explain their findings.
小題1:According to the passage, what is the problem with teens who don't get enough nutrients?
A.They are becoming smokers.B.They don't take enough exercise.
C.They eat too much fruit and fish.D.They are likely to have weaker lungs.
小題2:According to Burns, how should teens get the necessary nutrients?
A.By drinking juice as much as possible.
B.By eating more whole foods.
C.By taking vitamin pills.
D.By giving up smoking.
小題3:Which of the following is NOT mentioned by the researchers in the passage?
A.The amount of nutrients teens should take in a day.
B.How teens can take in enough nutrients.
C.Whether poor teens can prove their findings.
D.The fact that teens don't like fish.
小題4:What is the best title for the passage?
A.Poor nutrition hurts teens' health.B.Teens lack proper nutrition.
C.Teens are easy to suffer from diseases.D.More fruit help keep teens healthy.

小題1:D
小題2:B
小題3:C
小題4:A

試題分析:
小題1:D 細(xì)節(jié)題。根據(jù)文章1,2行Teenagers who do not get enough of the nutrients commonly found in fruits and fish are easier to have bad lungs, coughing and wheezing (喘息)說(shuō)明D正確。
小題2:B 細(xì)節(jié)題。根據(jù)文章第三段   Proper amounts of fatty acids are protective, Bums said, though fish, the best source of fatty acids, is particularly unpopular with teenagers.Fatty acids are also found in some nuts as well as some green vegetables'.說(shuō)明B正確。
小題3:C 細(xì)節(jié)題。根據(jù)文章第二段前三行說(shuō)明A正確;根據(jù)文章第一段說(shuō)明B正確。根據(jù)文章第三段后2行說(shuō)明D正確。故C項(xiàng)沒(méi)有提及。
小題4:A 主旨大意題。通過(guò)文章第一段內(nèi)容可知缺少各種各樣的營(yíng)養(yǎng)物質(zhì)會(huì)讓我們的健康受到較大的影響。故A正確。
點(diǎn)評(píng):本文講述的是因?yàn)槿鄙俑鞣N各樣的營(yíng)養(yǎng)物質(zhì),青少年的健康受到了較大的影響。本文考查細(xì)節(jié)題為主,細(xì)節(jié)題可以在文章中直接找到與答案有關(guān)的信息?或是其變體。搜查信息在閱讀中非常重要它包括理解作者在敘述某事時(shí)使用的具體事實(shí)、數(shù)據(jù)、圖表等細(xì)節(jié)信息。在一篇短文里大部分篇幅都屬于這類(lèi)圍繞主體展開(kāi)的細(xì)節(jié)。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

If you think American cooking means opening a package and throwing the contents into the microwave oven (微波爐), think again. On the one hand, it’s true that many Americans have cold cereal for breakfast, sandwiches for lunch and instant (方便的) dinners. From busy homemakers to working people, many Americans enjoy the convenience (方便) of fast food that can be ready to serve in 10 minutes or less. On the other hand, many Americans realize the importance of cooking skills. Parents — especially mothers — see the importance of training their children — especially daughters. Most Americans think that there’s nothing better than a good home-cooked meal. But with cooking, as with any other skill, good results don’t happen by accident.
Probably every cook has his or her own way of cooking. But there are some basic skills that most people follow. For example, baking is a main method (方法) of preparing food in America. For that reason, Americans would find it next to impossible to live without an oven. American cooks pay special attention to the balance of foods, too. In planning a big meal they try to include meat, a few vegetables, some bread and often a dessert. They also like to make sure the meal is colorful. Having several different colors of food on the plate usually makes for a healthy meal.
For those who need guidance in their cooking, or for those who have just run out of ideas, recipes are a great help. Recipes list all the ingredients for a dish (generally in the order used), the amount of each to use, and a description of how to put them together.
小題1:This passage mainly tells us that ______.
A.Americans like to have several different colors of food on the plate
B.without an oven, Americans find it impossible to live conveniently
C.Americans pay special attention to recipes and nutritious meals
D.Americans usually have fast food, but they pay special attention to cooking as well
小題2:Many Americans have cold cereal for breakfast, sandwiches for lunch and instant dinner because ______.
A.they like instant food very much
B.they don’t like cooking at all
C.most American working people are busy and don’t have time to cook
D.fast food is delicious and it usually contains a lot of vitamins
小題3:By saying “But with cooking, as with any other skill, good results don’t happen by accident”, the author means ______.
A.good cooking doesn’t come easily; it needs a lot of practice
B.just like any other skill, cooking may bring good results
C.cooking comes from one’s gift, not through practice
D.cooking can lead to accidents
小題4:From the passage, we know that ______.
A.Americans don’t care about food
B.Americans are not good at cooking because they like to use recipes
C.a(chǎn)n oven plays an important role in cooking for Americans
D.while cooking, Americans usually run out of ideas

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Nowadays, the food we eat seems to have great effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures.
That food is related to illness is not a new discovery. In 1945, about 68 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.
小題1:What is the best possible title of the passage?
A.Drug and Food B.Cancer and Health
C.Food and HealthD.Health and Drug
小題2:Which of the following statements is NOT true?
A.Drugs are always given to animals for medical reasons
B.Some of the additives in our food are added to the food itself and some are given to the living animals
C.Researchers have known about the potential dangers of food additives for over thirty-five years.
D.Food may cause forty percent of cancer in world.
小題3:How has science done something harmful to mankind?
A.Because of science, diseases caused by polluted food have been virtually eliminated.
B.It has caused a lack of information concerning the value of food.
C.Because of the application of science, some potentially harmful substances have been added to food.
D.The scientists have preserved the color of meats, but not of vegetables.
小題4:What are nitrates used for?
A.They preserve flavor in packaged foods.
B.They preserve the color of meats.
C.They are the objects of research.
D.They cause the animals to become fatter.
小題5:The word 'carcinogenic' most nearly means '_____'.
A.trouble-makingB.color-retainingC.money-makingD.cancer-causing

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Internet use appears to cause a drop in psychological health, according to a research at Carnegie Mellon University.
Even people who spent just a few hours a week on the Internet experienced more depression(沮喪) and loneliness than those who used Internet less frequently, the two-year study showed. And it wasn’t that people who were already feeling bad spent more time on the Internet, but that using the Net actually appeared to cause the bad feeling.
Researchers are puzzled by the results, which were completely the opposite to their experiences. They expected that the Net would prove socially healthier than television, since the Net allows users to choose the information and to communicate with others.
The fact that Internet use reduces time available for family and friends may explain the drop in well-being, researchers supposed. Faceless, bodiless “virtual” communication may be less psychologically satisfying than actual conversation, and the relationships formed through it may be shallower. Another possibility is that knowing the wider world via the Net makes users less satisfied with their lives.
“But it’s important to remember this is not about the technology; it’s about how it is used,” says psychologist Christine Riley of Intel, one of the study founders. “It really points to the need for considering social factors in terms of how you design applications(應(yīng)用) and services for technology.”
小題1:The best title of the passage probably is        .
A.Internet May Cause Depression
B.The Danger of Internet
C.Communication with Others by Internet
D.Puzzled by the Results
小題2:Why did the results of research puzzle the researchers?
A.People could choose their information through Internet.
B.They had expected the opposite results.
C.People can communicate with others.
D.They had thought Internet was much healthier.
小題3:Which of the following may be the cause of depression?
A.Net users found their living conditions bad.
B.Net users already had mental problems.
C.Deep relationships were formed through Internet.
D.Net users had less time to communicate with other people.
小題4:The writer’s attitude towards technology is        .
A.social factors must be considered while using technology
B.technology was to blame for depression
C.the problem doesn’t lie in technology
D.a(chǎn)pplications and services for technology must be designed

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

For a while, my neighborhood was taken over by an army of joggers(慢跑的人). They were there all the time: early morning, noon, and evening. There were little old ladies in gray sweats, young couples in Adidas shoes, middle-aged men with red faces. “Come on!” My friend Alex encouraged me to join him as he jogged by my house every evening. “You’ll feel great.”
Well, I had nothing against feeling great and if Alex could jog every day, anyone could. So I took up jogging seriously and gave it a good two months of my life, and not a day more. Based on my experience, jogging is the most overvalued form of exercise around, and judging from the number of the people who left our neighborhood jogging army. I’m not alone in my opinion.
First of all, jogging is very hard on the body. Your legs and feet are a real pounding(沉重的腳步) running down a road for two or three miles. I developed foot, leg, and back problems. Then I read about a nationally famous jogger who died of a heart attack while jogging, and I had something else to worry about. Jogging doesn’t kill hundreds of people, but if you have any physical weaknesses, jogging will surely bring them out, as they did with me.
Secondly, I got no enjoyment out of jogging. Putting one foot in front of the other for forty-five minutes isn’t my idea of fun. Jogging is also a lonely pastime. Some joggers say, “I love being out there with just my thoughts” Well, my thoughts began to bore me, and most of them were on how much my legs hurt.
And how could I enjoy something that brought me pain? And that wasn’t just the first week—it was practically every day for two months. I never got past the pain level, and pain isn’t fun. What a cruel way to do it! So many other exercises, including walking, lead to almost the same results painlessly, so why jog?
I don’t jog any more, and I don’t think I ever will. I’m walking two miles three times a week at a fast pace, and that feels good. I bicycle to work when the weather is good. I’m getting exercise, and I’m enjoying it at the same time. I could never say the same for jogging, and I’ve found a lot of better ways to stay in shape.
小題1:From the first paragraph, we learn that in the writer’s neighborhood _________.
A.Jogging became very popular
B.People jogged only during the daytime
C.Alex organized an army of joggers
D.Jogging provided a chance to get together
小題2:The underlined word “them”(Paragraph 3) most probably refers to _____.
A.heart attacks B.back problems
C.hundreds of peopleD.physical weaknesses
小題3:From the writer’s experience, we can conclude that_____
A.Jogging can help people keep fit
B.Many physical problems result from jogging
C.Not everyone enjoys jogging
D.Jogging makes people feel greater

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

閱讀下面短文,從各題A、B、C、D四個(gè)選項(xiàng)中,選出最佳答案。
People who smoke could lose around one third of their daily memory, researchers say.
A study by a team at Northumbria University showed that smokers lost more of their memory when compared to non-smokers.
And the research also found that those who kicked the habit saw their ability to recollect information restored to almost the same level as non-smokers.
The study involved more than seventy 18-to-25-year-olds and included a tour of the university’s campus. Those who took part were asked to recall small details, such as a list of songs played at a campus concert and tasks completed at various points-known as real world memory test. Smokers performed badly, remembering just 59 percent of tasks. But those who had given up smoking remembered 74 percent and those who had never smoked recalled 81 percent of tasks.
Dr. Tom Heffernan, who leads Northumbria University’s Collaboration for Drug and Alcohol Research Group, said the findings would be useful in anti-smoking campaigns. He said, “Given that there are up to 10 million smokers in the UK and as many as 45 million in the United States, it's important to understand the effects smoking has on everyday cognitive(認(rèn)知的)function-of which prospective memory is an excellent example. ”
“This is the first time that a study has set out to examine whether giving up smoking has an impact on memory. We already know that giving up smoking has huge health benefits for the body, but this study also shows how stopping smoking can have knock-on benefits for cognitive functions too. ’’
The research will now investigate the effects of passive smoking on memory, while Dr. Heffernan and Dr. Terence O’Neil will look into the effects of third-hand smoking-toxins left on curtains and furniture.
小題1:What’s the main idea of the passage?
A.Smoking does harm to health.
B.Smokers take a tour to the University’s campus.
C.Smoking can affect one’s memory.
D.Smokers are compared to non-smokers.
小題2:How did those who took part in the study perform when asked to recall small details?
A.Smokers did the worst among the participants.
B.Non-smokers could recall about half of them.
C.Smokers could recall nothing at all.
D.Those who gave up smoking did best.
小題3:According to Dr. Tom Heffernan, the findings_______.
A.would be really a surprise to the public
B.would contribute to fighting against smoking
C.would be used in real world memory test
D.would be nothing new to the researchers
小題4:What does the underlined word “impact’’ most probably mean?
A.orderB.impressionC.expression D.effect
小題5:What will Dr. Heffernan and Dr Terence O’Neil do?
A.Investigate the effects of third-hand smoking.
B.Do research on how smoking affects passive smokers.
C.Find ways to persuade people to quit smoking.
D.Study whether giving up smoking affects memory.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:完形填空

Keeping _36___and slim is the dream of many girls. Here is some advice about losing__37__. First, __38__attention to the amount of food you have every day. But it doesn’t mean you should starve(餓死) yourself. Your body _39___ nutrition(營(yíng)養(yǎng)). The key is a healthy_40___. Have more vegetables, fruit, milk and eggs and try to stay away from fast food, especially fries. Experts have pointed _41___ that having too many fries can even cause_42___. The last thing you should remember is to__43_ consistently(持續(xù)地). One or two days of jogging will make__44_ improvement. What you have to do is to leave your sofa, TV set, and snacks behind and to _45__ into the open air!
小題1:
A.fitB.cleanC.quietD.cool
小題2:
A.heightB.flightC.weightD.heart
小題3:
A.takeB.giveC.putD.pay
小題4:
A.haveB.needsC.takesD.makes
小題5:
A.snackB.drinkC.foodD.diet
小題6:
A.outB.inC.onD.a(chǎn)t
小題7:
A.badB.cancer(癌癥)C.effect D.terrble
小題8:
A.exerciseB.runC.jumpD.swim
小題9:
A.someB.a(chǎn)nyC.notD.no
小題10:
A.get upB.get outC.get downD.get off

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

It doesn’t matter when and how much a person sleeps , but everyone needs some rest to stay alive. That’s what all doctors thought , until they heard about Herpin. Herpin, it was said , never slept. Could this be true? The doctors decided to see this strange man themselves.
Herpin was 90 years old when the doctors came to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised. Though they watched him hour after hour and day after day, they never saw him sleeping. In fact, he did not even own a bed. He never needed one.
The only rest that Herpin sometimes got was sitting in a comfortable chair and reading newspapers. The doctors were puzzled by this strange continuous sleeplessness. They asked him many questions, hoping to find an answer. They found only one answer that might explain his condition. Herpin remembered some talk about his mother having been injured several days before he was born. But that was all. Was this the real reason? No one could be sure. Herpin died at the age of 94.
小題1:The main idea of this passage is that_____
A.large numbers of people do not need sleep
B.a(chǎn) person was found who actually didn’t need any sleep
C.everyone needs some sleep to stay alive
D.people can live longer by trying not to sleep
小題2:The doctors came to visit Herpin, expecting_____
A.to cure him of his sleeplessness
B.to find that his sleeplessness was not really true
C.to find out why some old people did not need any sleep
D.to find a way to free people from the need of sleeping
小題3:After watching him closely, the doctors came to believe that Herpin_____
A.needed some kind of sleep
B.was too old to need any sleep
C.needed no sleep at all
D.often sleep in a chair
小題4:One reason that might explain Herpin’s sleeplessness was _____
A.his mother’s injury before he was born
B.that he had gradually got rid of the sleeping habit
C.his magnificent physical condition
D.that he hadn’t got a bed
小題5:Herpin’s condition could be regarded as ______
A.a(chǎn) common one B.one that could be curedC.very healthyD.a(chǎn) rare one

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

The Five Rules for Keeping Fit
Hi, there! I'm Grystal Collins, and I'm very happy to share some time with you. So, you want to keep fit, huh? Well, you surely came to the right place. Together we can keep fit and healthy, and succeed in doing that. It's easy. Everybody can do it, you hear? Just remember the five golden rules.
Number one: Always wear comfortable clothes when you are exercising. You need to feel comfortable and relaxed(放松).
Number two: You should always do some warming-up exercise first to get your body ready for the real thing.
Number three: Never try to do too much exercise too soon. Take it nice and easy now, you hear? There's no rush about this.
Number four: Don't forget to relax for about five minutes when you've finished your exercise. You need to rest a little bit after you've been exercising.
And here is the golden rule Number five. Stop at once if you feel any pain in your neck, head or any part of your body.
小題1:The students may most probably be the people ___________.
A.who are ill
B.who want to be healthier
C.who are Crystal Collins' good friends
D.who are not interested in taking exercise
小題2:Crystal Collins may most probably say this            .
A.before the exercise starts
B.when the exercise is over
C.during the exercise
D.a(chǎn)s soon as the exercise has started
小題3:Which of the following is NOT true?
A.You should do some warming-up exercise before the real thing.
B.You should wear comfortable clothes.
C.You should rest for a while when you are doing warming-up exercise.
D.You should stop if you feel any pain in your body.

查看答案和解析>>

同步練習(xí)冊(cè)答案