练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Like distance runners on a measured course，all of us will move through time in a roughly predictable pattern．
    In the first stage of our lives，we develop and grow, reaching toward the top of physical vitality(活力)．
    After we grow up，however, the body begins a process of gradually wearing out．
    A new awareness of physical fitness may help lengthen our years of health and vitality，yet nothing we do will work to stop the unavoidable force of aging．
    Most of the changes of aging take place deep inside the body．The lungs become less able to take in oxygen．Powerful muscles gradually lose their strength．The heart loses power and pumps less blood．Bones grow easier to break．
    Finally, we meet a stress，a stress that is greater than our physical resistance．Often，it is only a minor accident or chance infection(a disease caused by virus)，but this time，it brings life to an end．
    In 1932，a classic experiment nearly doubled the lifetime of rats，simply by cutting back the calories in their diet The reason for the effect was then unknown．
    Today, at the University of California at Berkley, Dr．Paul Seagle has also greatly lengthened the normal lifetime of rats．The result was achieved through a special protein limited diet，which had a great effect on the chemistry of the brain．Seagle showed that within the brain，specific chemicals control many of the signals that influence aging．By changing that chemical balance，the clock of aging can be reset．
    For the first time, the mystery of why we age is being seriously challenged．Scientists in many fields are now making striking and far-reaching discoveries．
    An average lifetime lasts 75 years，yet in each of us lies a potential for a longer life．If we could keep the vitality and resistance to disease that we have at age twenty, we would live for 800 years．
    小题1:What does the underlined word “it” refer to?
    A．Physical vitality．B．Stress．C．Aging．D．Physical resistance．
    小题2:Which of the following is not a change of aging?
    A．People gradually lose their muscle strength．
    B．Bones tend to break more easily．
    C．The heart loses power and pumps less blood．
    D．The lungs become unable to take in oxygen．
    小题3:The author believes the following except that     ．
    A．human's life pattern is predictable
    B．physical fitness can't stop the force of aging
    C．human's lifetime will last longer than 75 years
    D．all of the changes of aging take place deep inside the body
    小题4:How did Dr．Paul Seagle lengthen the lifetime of rats in his experiment?
    A．By keeping their physical fitness．B．By cutting the calories in their diet．
    C．By resetting their clock of aging．D．By limiting the protein in their diet．
    小题5:What is probably the best title for the article?
    A．Two Great Experiments
    B．The Mystery of Human Life
    C．The Breakthrough in the Study of Aging
    D．Ways to lengthen Human Life

    小题1:B
    小题2:D
    小题3:D
    小题4:D
    小题5:C

    试题分析：
    小题1:B 推理题。根据本句we meet a stress，a stress that is greater than our physical resistance．Often，it is only a minor accident or chance infection(a disease caused by virus)，but this time，it brings life to an end．说明这里的it指上的stress，它让我们的生命结束。
    小题2:D 细节题。根据文章第五段Most of the changes of aging take place deep inside the body．The lungs become less able to take in oxygen．Powerful muscles gradually lose their strength．The heart loses power and pumps less blood．Bones grow easier to break．说明ABC都是变老的变化，D项表述错误，肺部不是不能吸入氧气，是吸入氧气变少。
    小题3:D 推理题。根据文章第五段Most of the changes of aging take place deep inside the body．The lungs become less able to take in oxygen．Powerful muscles gradually lose their strength．The heart loses power and pumps less blood．Bones grow easier to break．这里很多变老的症状都表现在外在了，故D说法错误。
    小题4:D 细节题。根据文章倒数第四段a classic experiment nearly doubled the lifetime of rats，simply by cutting back the calories in their diet说明D正确。减少了饮食中的卡路里，与D项相符。
    小题5:C 主旨大意题。本文讲述了一个新的科学发现，是对人类变老的研究，结果发现我们可以延长我们的衰老过程，以延长我们的生命。故C正确。
    点评：：本文讲述了一个新的科学发现，是对人类变老的研究，结果发现我们可以延长我们的衰老过程，以延长我们的生命。科普类短文阅读会遇见较多的生词，在遇见生词的时候要学会根据上下文语境进行推理猜测其意思，减少语言的障碍，本文的关键在于细节的定位较为重要。
    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

                                  D
    The year is 2094. It has been announced that a comet (彗星) is heading towards the Earth . Most of it will miss our planet , but two pieces will probably hit the southern half of the Earth .
    On 17 July , a piece four kilometers wide enters the Earth’s atmosphere (大气层) with a massive explosion . About half of the piece is destroyed , but the remaining part hits the South Atlantic at 200 times the speed of sound . The sea boils and a huge hole is made in the sea bed . Huge waves are created and spread outwards from the hole . The wall of water , a kilometer high , rushes towards southern Africa at 800 kilometers an hour . Cities on the African coast are totally destroyed and millions of people re drowned .
    Before the waves reach South America , the second piece of the comet lands in Argentina . Earthquakes and volcanoes are set off in the Andes Mountains . The shock waves move north into California and all around the Pacific Ocean . The cities of Los Angeles , San Francisco and Tokyo are completely destroyed by earthquakes . Millions of people in the southern half of the earth are already dead, but the north won’t escape for long . Because of the explosions , the sun is hidden by clouds of dust , temperatures around the world fall to almost zero .Crops are ruined . The sun won’t be seen again for many years . Wars break out as countries fight for food . A year later , no more than 10 million people remain alive .
    Could it really happen ? In fact , it has already happened more than once in the history of the Earth . The dinosaurs were on the Earth for over 160 million years . Then 65 million years ago they suddenly disappeared . Many scientists believe that the Earth was hit by a piece of object in space . The dinosaurs couldn’t live through the cold climate that followed and they died out . Will we meet the same end ?
    小题1:What is mainly described in the passage ?
    A．A historic discovery .B．An event of imagination
    C．A research on space .D．A scientific adventure .
    小题2:When the first piece hits the South Atlantic , it causes           .
    A．an earthquake B．damages to cities
    C．an Earth explosionD．huge waves
    小题3:Why can’t the northern half of the earth escape for long ?
    A．Because the land is covered with water
    B．Because the light and heat from the sun can not reach the earth .
    C．Because people there can not live at the temperature of zero .
    D．Because wars break out among countries .

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    School education is very important and useful. Yet no one can learn everything from school. A teacher, no matter how much he knows, he can not teach his students everything they want to know. The teacher’s job is to show his students how to learn. He teaches them how to read and how to think. So much more is to be learned outside school by the students themselves.
    It is always more important to know how to study by oneself than to learn some facts or a formula by heart. It is actually quite easy to learn a certain fact in history or a formula(公式) in mathematics. But it is very difficult to use a formula in working out a maths problem. Great scientist, such as Einstein, Newton and Galileo, didn’t get everything from school. But they were all so successful and invented so many things for men. They worked hard all their lives, wasting not a single moment. They would ask many questions as they read and they did thousands of experiments.
    小题1:According to the passage, a good teacher should be one who is to_________.
    A．help his students to gain a good memory.
    B．train his students’ ability to learn
    C．teach his students everything he knows
    D．have his students studying long hours
    小题2: If a student want to learn better, the most important thing for him to do is_______.
    A．to learn all the useful facts and formula by heart
    B．to do everything as his teacher have said in class
    C．to absorb (吸收) as much knowledge from his teacher as possible
    D．to think more while he is studying
    小题3:The main reason for the success of the great scientists is that________.
    A．the teachers who had taught them were all experienced.
    B．they used to work and study without a moment’s rest.
    C．they had received more schooling than other people
    D．they know how to study and worked hard
    小题4:What’s the good advice the writer gives us?
    A．We can learn better without teachers
    B．We should do more asking and thinking while studying
    C．We should pay enough attention to classroom
    D．Book knowledge is little use

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    When a child is told he is "uncool", it can be very painful. He may say he doesn't care, and even act in ways that are opposite of cool on purpose. But ultimately, these are simply ways to handle sadness by pretending it's not there.
    Helping a child feel better in school had to be careful. If you say, "Why are you worried about what other children think about you? It doesn't matter!"  Children know that it does matter. Instead, an active way may be best. You could say, "I'm going to do a couple of things for you to help you feel better in school."
    If a boy is having trouble making friends, the teacher can help him. The teacher can arrange things so that he has chances to use his abilities to contribute to class projects. This is how the other children learn how to value his good qualities and to like him. A teacher can also raise a child's popularity in the group by showing that he values that child. It even helps to put him in a seat next to a very popular child, or let him be a partner with that child in activities, etc.
    There are things that parents can do at home, too. Be friendly when your child brings others home to play. Encourage him to invite friends to meals and then serve the dishes they consider "super". When you plan trips, picnics, movies, and other shows, invite another child with whom your child wants to be friends.
    What you can do is to give him a chance to join a group that may be shutting him out. Then, if he has good qualities, he can start to build real friendship of his own.
    小题1:A child who has been informed of being "uncool" may ________.
    A．care nothing about itB．develop a sense of anger
    C．do something uncool purposelyD．pretend to get hurt very much
    小题2:A teacher can help an unpopular child by ________.
    A．seeing the child as the teacher's favourite
    B．asking the child to do something for partners
    C．forcing other children to make friends with the child
    D．offering the child chances to show his good qualities
    小题3:Which of the following is TRUE?
    A．Children don’t care others' comments on them.
    B．It's only teacher's work to make children popular.
    C．Parents should take their children out for picnic and shows more often.
    D．Inviting children's friends to family activities is good for them to make friends.
    小题4:The passage mainly talks about ________.
    A．how to help an unpopular child
    B．why some children are unpopular
    C．who is responsible for unpopular children
    D．how to find out good points of unpopular children

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Once upon a time in a land far away, there was a wonderful old man who loved everything：animals, spiders, insects．
    One day while walking through the woods, the nice old man found a cocoon（茧）of a butterfly．He took it home．A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole．Then it seemed to stop making any progress．It appeared as if it had gotten as far as it could and it could go no farther．Then the man decided to help the butterfly, so he took a pair of scissors and cut off the remaining bit of the cocoon．
    The butterfly then appeared easily．
    But it had a swollen body and small, fragile wings．The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, which would be smaller in time．Neither happened! In fact, the butterfly spent the rest of its life crawling （慢慢爬行）around with a swollen body and fragile wings．
    It never was able to fly．
    What the man in his kindness and hurry did not understand was that the limited cocoon and the struggle required for the butterfly to get through the tiny opening were Nature's way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon．
    Sometimes struggles are exactly what we need in our life．If we were allowed to go through our life without any obstacles and difficulties, it would disable us．We would not be as strong as what we could have been．And we could never fly．
    小题1:The butterfly could never fly because _______________．
    A．it was too fat and strong．
    B．it loved crawling around．
    C．it got out of the cocoon easily．
    D．it didn’t get through the cocoon．
    小题2:The text is most likely to be found in a book about_______________．
    A．popular scienceB．humorous stories．
    C．successful peopleD．philosophyevents
    小题3:What is the implied meaning of the passage?
    A．Life without any obstacles and difficulties is perfect．
    B．Obstacles and difficulties contribute to success．
    C．Never help a butterfly to get out of the cocoon．
    D．A butterfly can never fly without going through the cocoon

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    If you want to become a fluent English speaker you should take some advice. There are four skills in learning English. They are reading, listening, speaking, and writing. The most important thing you must remember is that if you want to improve your speaking and writing skills, you should first master the skills of reading and listening.
    Read as much as you can. But your reading must be active. It means that you must think about the meaning of the sentence, the meaning of the unfamiliar words, etc. There is no need for you to pay much attention to grammars or try to understand all the unfamiliar words you come across, but the fact that you see them for the first time and recognize them whenever you see them, for example, in other passages or books, is enough. It would be better to prepare yourself a notebook so you can write down the important words or sentences in it.
    As for listening, there are two choices: besides reading, you can listen every day for about 30 minutes. You can only pay attention to your reading and become skillful at your reading, then you can catch up on your listening. Since you have lots of inputs in your mind, you can easily guess what the speaker is going to say. This never means that you should not practice listening. For listening you can listen to cartoons or some movies that are specially made for children. Their languages are easy. Or if you are good at listening you can listen to VOA or BBC programs every day. Again the thing to remember is being active in listening and preferably taking some notes.
    If you follow these pieces of advice, your speaking and writing will improve quickly, and you can be a fluent English speaker one day.
    小题1:According to the writer, which should you improve first among the four skills?
    A．Reading and listening.B．Reading and writing.
    C．Writing and speaking.D．Speaking and listening.
    小题2: To improve your reading, when you read you should ______.
    A．look up all the new words in the dictionary
    B．think about what you are reading actively
    C．spend more time studying grammars
    D．copy as many words and sentences as possible
    小题3:The underlined phrase “come across” in Paragraph 2 can probably be replaced by “______”.
    A．meet B．discoverC．hear D．look for
    小题4:The passage is mainly about how to ______.
    A．choose suitable listening materials
    B．deal with new words in reading
    C．improve your reading ability as quickly as possible
    D．become fluent in speaking and writing English

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Tourism probably started in Roman times. Rich Romans visited friends and family who were working in another part of the Roman Empire. But when the empire broke down，this kind of tourism stopped.
    　　In the early 17th century, the idea of the “Grand Tour” was born. Rich young English people sailed across the English Channel（英吉利海峡）.They visited the most beautiful and important European cities of the time, including Paris in France, and Rome and Venice（威尼斯）in Italy. Their tours lasted for two to four years, and the tourists stayed a few weeks or months in each city. The “Grand Tour” was an important part of young people’s education—but only for the rich.
    In the 18th century, tourism began to change. For example, people in the UK started to visit some towns, such as Bath to” take the waters”. They believed that the water there was good for their health. So large and expensive hotels were built in these towns.
    　　In the 19th century, travel became much more popular and faster. When the first railways were built in the 1820s, it was easier for people to travel between towns, so they started to go for holidays by the sea. And some started to have holidays in the countryside as cities became larger, noisier and dirtier.
    　　Traveling by sea also became faster and safer when the first steamships were built. People began to travel more to far away countries.
    　　The 20th century saw cars become more and more popular among ordinary people. Planes were made larger, so ticket prices dropped and more people used them.
    　　Thus tourism grew. In 1949, Russian journalist Vladimir Raitz started a company called Horizon Holidays. The company organizes everything—plane tickets, hotel rooms, even food—and tourists pay for it all before they leave home. The package tour and modern tourist industry was born.
    　　The first travel agency in China was set up as early as 1949.But tourism did not take off until 1978.In 2002,the industry was worth 500 billion yuan and became an important part of China’s social development.
    小题1:In the early times, the travelers ________.
    A．all came from Roman
    B．were very young and strong
    C．had lots of money
    D．traveled by boat
    小题2:________ played the most important role in the tourism development.
    A．EducationB．MoneyC．TransportationD．People’s ideas
    小题3:Modern tourism was born ________.
    A．in 1949B．in Roman times
    C．in the early 17th centuryD．in the 19th century
    小题4:The underlined phrase “take off” means ________.
    A．a plane rising into the air
    B．develop very fast
    C．remove hats and clothes
    D．bring down the prices

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Don’t you think your schoolbag is too heavy to bear? The e-schoolbag will free you from the weight.
    It is said that e-schoolbags are going to be brought into use in Chinese middle schools soon. An experiment with several hundred e-schoolbags will begin in seven cities: Beijing, Shanghai, Dalian, Shenzhen, Chongqing, Taiyuan and Shijiazhuang. And the e-schoolbags are going to cover all over China if the experiment proves to be successful. In fact, the e-schoolbag should perhaps be called an e-notebook. It is a small hand-held computer for school students.
    Heavy schoolbags have long been a serious problem for school students. The average schoolbag of middle school students weighs up to 5 kilos. But the e-schoolbag will change everything. It is much lighter than a usual schoolbag, weighing under 1 kilo.
    Also, it is no bigger than a usual book, but it can still hold all the things for study, such as a textbook, a notebook and exercise book. They could be made into chips that are as small as a stamp. The students can read the text page by page on the screen. They can still take notes using a special electronic pen. If they want to know the meaning or the pronunciation of a new word, or even e-mail their teachers, it’s just a press of a button.
    In some foreign countries, it is becoming common. But it is hard to tell when people will receive this new form of study. Some say that e-textbooks can be easily broken, some say that it is not good to students’ eyesight to look at the screen for long.  But only time will tell.
    小题1:The e-schoolbag has many functions EXCEPT ________.
    A．It can pronounce the words.
    B．It can send e-mail.
    C．It can be used as a dictionary.
    D．It can phone somebody.
    小题2:According to the passage, the e-schoolbag ­­­________.
    A．is not heavy as before but still large
    B．is used as an experiment in Tianjin
    C．is made of metal
    D．is going to cover China if it proves to be successful
    小题3:Which of the following statement is TRUE?
    A．All the students in China will be required to use this new schoolbag soon.
    B．All the people think highly of e-textbooks.
    C．E-notebooks are very convenient to students.
    D．We will not make notes because the e-notebook can make all by itself.
    小题4:The best title for the passage should be ________.
    A．An Experiment In China
    B．Please Change Your Schoolbag
    C．A New Invention, A New Schoolbag
    D．Chips

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Joker found one of the biggest diamonds in the world right in his own back yard. He sold the stone to a diamond dealer for over three hundred thousand dollars. In New York, the diamond was resold---this time for almost eight hundred thousand dollars. The true value of a diamond is never known until it has been cut. Once cut successfully, its value can increase a thousand times. It's easy to understand why the owner of Joker's diamond went to the best diamond cutter he knew, Kaplan. The cutter studied the diamond for twelve whole months.
    When he felt he was ready to start work, he discovered a flaw (瑕疵) . He had to begin his calculations all over again, or he might have made the stone useless. Six months passed, and Kaplan finally said to the owner, “I am ready to start my work. There will be one excellent diamond that will be comparable one excellent diamond of first-class quality (质量)  " Kaplan waited a few more days until he felt he was in the best physical and mental (精神的) condition(条件) possible. He picked up his tools (工具) and held his breath as he made the diamond exactly as he promised.
    小题1:Joker found one of the biggest diamonds in the world_________.
    A．in a minuteB．at the foot of a big mountain
    C．in his own back yardD．in a garage (汽车库)
    小题2:A diamond dealer is a person ___________.
    A．in the diamond businessB．who stole diamonds
    C．who cuts diamondsD．who sells diamonds
    小题3:When the diamond was resold,____________.
    A．the dealer lost a lot of money
    B．Joker made some more money
    C．the dealer got 800, 000 dollars
    D．Kaplan got 800,000 dollars
    小题4:The owner of the diamond thought that if the diamond was cut successfully it might be worth_________.
    A．$ 300, 000B．$ 500,000
    C．$ 300, 000D．$ 800,000,000
    小题5:Kaplan studied the diamond for____________.
    A．more than one and a half years
    B．more than half a year
    C．over eight months
    D．more than nineteen months

    查看答案和解析>>

    同步练习册答案