练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.
    When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.
    In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the back of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.
    Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can resist massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.
    小题1:What does the author say about the black box?
    A．It ensures the normal functioning of an airplane.
    B．The idea for its design comes from a comic book.
    C．Its ability to resist disasters is incredible.
    D．It is an indispensable device on an airplane.
    小题2: What information could be found from the black box on the Yemeni airliner?
    A．Data for analyzing the cause of the crash.
    B．The total number of passengers on board.
    C．The scene of the crash and extent of the damage.
    D．Homing signals sent by the pilot before the crash.
    小题3:Why was the black box redesigned in 1965?
    A．New materials became available by that time.
    B．Too much space was needed for its installation.
    C．The early models often got damaged in the crash.
    D．The early models didn't provide the needed data.
    小题4: Why did the Federal Aviation Authority require the black boxes be painted orange or yellow?
    A．To distinguish them from the colour of the plane.
    B．To caution people to handle them with care.
    C．To make them easily identifiable.
    D．To conform to international standards.
    小题5:What do we know about the black boxes from Air France Flight 447?
    A．There is still a good chance of their being recovered.
    B．There is an urgent need for them to be reconstructed.
    C．They have stopped sending homing signals.
    D．They were destroyed somewhere near Brazil.
    小题1:C小题1:A小题1:C小题1:C小题1:A
    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：完形填空

    完形填空 （共20小题；每小题l分，满分20分）
    When Andra Rush started her trucking company, all she had was an old van，two used pick-up trucks and the simple certainty of a 23-year-old girl. But she planned to make her fortune in about four years to   36  her true goal: dealing with poverty on Native American reservations across North America. "I thought I could retire by the time I was 27," says Rush, "At that age, you don't know  37  you don't know."
    Rush is 49 now and  38  working hard. Her tiny start-up just outside Detroit has  39  to a $400 million North American business. Today Rush is a(an)  40  not only for Native Americans but also for women in the male-controlled world of trucking.
    Rush was  41 30 miles outside Detroit. When the teenage Rush visited the reservation for the first time, she was  42  by the poverty and lack of hope. "I really wanted to  43  " she says.
    She graduated from the University of Michigan in 1982. She took a nursing job with a 44 pay and then practiced at an air goods company, 45 the speed of package pickups and deliveries made a little more a little more profits. "I thought I could do that 46 ," Rush says.
    Within six months, Rush had ten employees, and clients(客户)  47 Ford and GM were paying her to 48 small packages from the airport. Ford was the first to offer her a job trucking parts between its plants and supplier.
    By 2001, many of Rush's 1,000 employees were Native Americans, working alongside people of every    49  But she felt she hadn't done enough. 50  she joined forces with a Canadian parts maker to design and gather auto components.
    She located the plants near reservations, 51 opportunities where they were needed most. By 2009, her auto parts business was earning $370 million   52  .
    She's come a long way from the  53   23-year-old who thought "the cash would just roll in." But Rush wouldn't change a thing: "I love my job," she says. "I 54 the fact that you can start to get some motivation and keep   55  yourself—and then suddenly you lift your head and it's been 25 years"
    小题1:
    A．makeB．accomplishC． receiveD．arrive
    小题2:
    A．whatB．whichC．whyD．who
    小题3:
    A．soB．somehowC．stillD．anyhow
    小题4:
    A． grownB．becomeC．gotD．gone
    小题5:
    A．able housewifeB．ordinary womanC．role modelD．truck driver
    小题6:
    A．broughtB．livedC．risen D．raised
    小题7:
    A．movedB．interestedC．struckD．encouraged
    小题8: A have an influence           B．make a difference  C．set an example   D．make a decision
    小题9:
    A．lowB．highC．cheapD．expensive
    小题10:
    A．whichB．thatC．whenD．where
    小题11:
    A．wellB．badlyC．worseD．better
    小题12:
    A．likeB．besidesC．forD．except
    小题13:
    A．takeB．fetchC．bringD．lift
    小题14:
    A．educationB．familyC．backgroundD．city
    小题15:
    A．BecauseB．ForC．ButD．So
    小题16:
    A．seizingB．creatingC．graspingD．losing
    小题17:.
    A．in caseB．in turnC．in returnD．in need
    小题18:
    A．inexperiencedB．experiencedC．expertD．skilled
    小题19:
    A．enjoyB．hateC．doubtD．refuse
    小题20:
    A．fightingB．forcingC．challengingD．amusing

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Bamboo (竹子) is one of nature’s most surprising plants. Many people call this plant a tree, but it is a kind of grass.
    Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist reported one bamboo plant which grew 1.5 meters in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1, 000 kinds of bamboo.
    Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimeters wide while others may grow to more than 30 centimeters across. This plant also comes in different colors, from yellow to black to green.
    Bamboo has been used to make many things such as hats and kitchen tools. Because it is strong, bamboo is also used to build buildings.
    Many Asian countries have used bamboo for hundreds of years. They often use bamboo for buildings and supporting new buildings and bridges while they are being built.
    In Africa, poor farmers are taught how to find water using bamboo. These African countries need cheap way to find water because they have no money, and their fields often die from no rain and no water. Bamboo pipes (管子) help poor farmers bring water to their thirsty fields without spending a lot of money.
    小题1:How is bamboo like grass?
    A．It grows quickly.B．It’s wood.
    C．It is easy to cut.D．It is very thin.
    小题2: Though you can see bamboo everywhere, it doesn’t grow __________.
    A．in ChinaB．in Europe
    C．on mountainsD．in Africa
    小题3:Why is bamboo used by African poor farmers?
    A．It is cheap.B．It has different colors.
    C．It is strong.D．It has been used by Asians.
    小题4: In Asia, bamboo has been used for __________.
    A．a short timeB．about 100 years
    C．many hundreds of yearsD．many thousands of year

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Vans, Keds, Dollies—they sound like the names of rock bands, but if you have teenagers, you'll know they're actually the latest in teenage footwear.
    But experts are now warning that the current shoe fashions will be causing teenagers discomfort in the short term and storing up years of foot, knee and back pain in the future.
    Here, the experts identify the problems caused by teenagers' shoe choice.
    KEDS/VANS
    Slip-on shoes with elastic (弹性的）sides are particularly popular among teenage boys - with Keds and Vans the most sought-after brands.
    The main problem is that they are just too flat—so flat that the heel, which strikes the ground first, also becomes damaged and painful.
    BALLET PUMPS
    The worst shoes of all are such light and thin dolly shoes. The problem is partly their flatness, as with Keds and Vans. However ballet pumps, which have no string or heel, have other specific problems.
    “As the shoe has no fastening device, it relies on the toes to keep the shoe on, causing an awkward gait（步法）, this leads to short- and long-term problems such as calluses（茧子）, heel and knee pain.”
    WEDGES AND STILETTOS
    These shoes can also cause problems with gait. They may look good, but the heels on these are so high they can force the wearer's body weight forward, making them very unstable.
    Teens who wear these shoes regularly are also in danger of joining those millions of women with constant back pain.
    SCHOOL SHOES
    So what do podiatrists（足科医生）have on their wish list, especially for everyday wear?
    Something in a natural, breathable fabric, with a string to hold it on, with a small heel and a deep toe-box that does not press the toes, such as Clark's, Marks & Spencer or Rhino.
    If your teen insists on wearing 'bad' shoes, get them some simple foot orthotics(矫形器) in the shoes. These support and correct the movement of the foot and, properly fitted by a podiatrist, can often transform their walk and halt the damage.
    小题1: Of all the shoes mentioned in the passage, which can cause the worst problems?
    A．Marks & Spencer.B．Wedges & Stilettos.
    C．Keds and Vans.D．Ballet Pumps.
    小题2: Which pair of shoes may not be found on the podiatrists’ wish list?

    小题3: The underlined word “halt” in the last paragraph probably means _______.
    A．increaseB．worsenC．stopD．cure
    小题4: From this passage we can infer _______.
    A．trendy shoes may ruin teenagers’ health
    B．fashionable shoes all have orthotics in them
    C．experts are strongly against wearing popular shoes
    D．podiatrists are expert at producing branded shoes
    小题5: In which column of Mail Online can you find this passage?
    A．Sports.B．Science.C．Health.D．Shopping.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    We are all interested in equality，but while some people try to protect the school and examination system in the name of equality，others，still in the name of equality，want only to destroy it．
    Any society which is interested in equality of opportunity and standards of achievement must regularly test its pupils．The standards may be changed—no examination is perfect--but to have no external(外部的)tests or examinations would mean the end of equality and of standards．There are groups of people who oppose this view and who do not believe either in external examinations or in any contr schools or on teachers.This would mean that everything would depend on luck every pupll would depend on the efficiency(效率)，the ideal and the purpose of teacher．
    Without external examinations， employers will 1ook for employees from highly respected schools and from families known to them--a form of favoritism will  replace equality．At the moment，the bright child from an ill—respected schoo1 can show certificates(证书)to prove he or she is suitable for a job，while the lack of a certificate shows the unsuitability of a dull child attanding a well—respected schoo1.This defence of excellence and opportunity would disappear if external examinations were taken away，and the bright child from a poor family would be a prisoner of his or her school’s fame(名誉)，unable to compete for employment with the child from the favored schoo1．
    The opponents(对手)of the examination system suggest that examinations are an evil force because they show differences between pupils．According to these  people，there must be no special，different，academic class． They have even suggested that there should be no form of difference in sport or any other area：all jobs or posts should be filled by unsystematic selection．The selection would be made by people who themselves are probably selected by some computer．
    小题1: The word “favoritism” in paragraph 3 is used to decribe the phenomenon that _____. 
    A．bright children also need certificates to get satisfying jobs.
    B．Pooor children with certificates are favored in job markets.
    C．Children attending ordinary schools achieve great success.
    D．children from well-respected schools tend to have good jobs.
    小题2:What would happen if examinations were taken away according to the author?    
    A．Children’s job opportunity would be affected by their school reputation.
    B．Schools for bright children would lose their reputation
    C．There would be more opportunities and excellence.
    D．Children from poor families would be able to change their schools.
    小题3: The opponents of the examination system will agree that _____.
    A．Computers should be selected to take over many jobs.
    B．Special classed are necessary to keep the school standards.
    C．Jobs should not be assigned by systematic selection.
    D．Schools with academic subjects should be abolished.
    小题4: The passage mainly focuses on ____.
    A. schools and certificates   B opportunity and employment
    C. examinations and equality  D. standards and reputation

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    How many people have I met who have told me about the book that they have been planning to write but have never yet found the time? Far too many．
    This is Life, all right, but we do treat it like a rehearsal （排演) and, unhappily, we do miss so many of its best moments．
    We take jobs to stay alive and provide homes for our families, always making ourselves believe that this style of life is merely a temporary state of affairs along the road to what we really want to do． Then, at 60 or 65, we are suddenly presented with a clock and several grandchildren and we look back and realize that all those years waiting for Real Life to come along were in fact real life．
    In America they have a saying much laughed at by the English：“Have a nice day!” They speak slowly and seriously in their shops, hotels and sandwich bars． I think it is a wonderful phrase, reminding us, in effect, to enjoy the moment: to value this very day．
    How often do we say to ourselves, "I'll take up horse-riding （or golf, or sailing) as soon as I get a higher position," only to do none of those things when I do get the higher position．
    When I first became a reporter, I knew a man who gave up a very well paid respectable job at the Daily Telegraph to go and edit a small weekly newspaper． At the time I was astonished by what appeared to me to be his completely abnormal （反常的) mental state． How could anyone turn his back on Fleet Street in central London for a small local area？I wanted to know．
    Now I am a little older and possibly wiser, I see the sense in it． In Fleet Street the man was under continual pressure． He lived in an unattractive London suburb and he spent much of his life sitting on Southern Region trains．
    小题1:The first paragraph of the passage tells us that           ．
    A．we always try to find some time to write a book
    B．we always make plans but seldom fulfill them
    C．we always enjoy many of life's best moments
    D．we always do what we really want to do
    小题2:The underlined phrase "turn his back on" （paragraph 6) most probably means       ．
    A．leave for B．return toC．give upD．rely on
    小题3:The man （ paragraph 6) left his first job partly because he was           ．
    A．in an abnormal stateB．under too much pressure
    C．not well paidD．not respected
    小题4:What is probably the best title for the passage?
    A．Provide Homes For Our FamilyB．Take Up Horse-riding
    C．Value This Very DayD．Stay Alive

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

      Do you now who Stefani Germanotta is? Perhaps not, but you’ll almost certainly know the star called Lady Gaga, a 24-year-old American famous for her cutting edge pop videos and strange fashion sense. She was the biggest winner at the MTV Europe Music Awards in Madrid on November 7, 2010. Her awards included the best female artist and the best song.
    Her popularity doesn’t end there. The BBC reports that the University of South Carolina has a sociology course about the life, work and rise to fame of Lady Gaga. The course is due to start in spring 2011. “We’re going to look at Lady Gaga as a social event,” said professor Mathieu, who will teach Lady Gaga and the Sociology of Fame.
    Germanotta, in fact, is a college student. She learned to play the piano by age 4. At age 17, she was one of the only 20 young people to get early admission to New York University’s Tisch School of the Arts, the famous music school. Yet after her second semester, she took a big risk—she decided to quit and concentrate on a music career. But hwo did she manage to go from nowhere to supar star in just two years?
    She may well have had a plan for the top. She created “The Ultimate Pop Burlesque Show” with another artist. It was the first of many strange images. The pair gained enough attention to get a spot at a famous music festival in Chicago. Later, a record company signed Germanotta.
    While Lady Gaga enjoys popularity, there are critics accusing her of regularly using rude language in her lyrics(歌词) and wearing overly sexy clothing.
    小题1: According to the article, Lady Gaga is famous for _______.
    A．her fashion showsB．her strange images
    C．her talents in universityD．her winning awards
    小题2: Which of the following is the correct order for the stages of Gaga’s career?
    a. She appeared in a music festival in Chicago   b. She won the award—the best female
    c. She decided to quit school                 d. She created a show with another artist
    e. She was signed by a record company         f. Her success has become a university course
    A．b—f—c—a—d—eB．b—f—c—d—a—e
    C．c—d—a—e—b—fD．c—d—a—e—f—b
    小题3:The main reason why Lady Gaga could become famous is that ______.
    A．she knew her dream of lifeB．she knew what she would do next
    C．she learned music at a young ageD．she ws brave enough to quit university
    小题4: From this passage, we can infer that ________.
    A．a good performance in university may lead to one’s success.
    B．cooperation with other artists is important in becoming successful
    C．Lady Gaga will become less famous because of her lyrics and clothing
    D．Professor Mathieu believes that Lady Gaga’s success is worth studying

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    How can you find out what is going on inside a person’s body without opening the patient’s body up? Regular X rays can show a lot. CAT scans can show even more. They can give a complete view of body organs.
    What is a CAT scan? CAT stands for a kind of machine. It is a special X-ray machine that gets a 360-degree picture of a small area of a patient’s body.
    Doctors use X rays to study and determine diseases and injuries within the body, X rays can find a foreign object inside the body or take pictures of some inside organs to be X-rayed.
    A CAT scanner, however, uses a group of X rays to give a cross-sectional（横截面）view of a specific part of the body. A fine group of X rays is scanned across the body and around the patient from many different directions. A computer studies the information from each direction and produces a clear cross-sectional picture on a screen. This picture is then photographed for later use. Several cross sections, taken one after another, can give clear “photos” of the entire body or of any body organs. The latest CAT scanners can even give clear pictures of active, moving organs, just as a fast-action camera can “stop the action”, giving clear pictures of what appears unclear to the eye. And because of the 360-degree pictures, CAT scans show clear and complete views of organs in a manner that was once only shown during operation or examination of a dead patient.
    Frequent appearance before X rays can cause skin burns, cancer or other damage to the body. Yet CAT scans actually don’t cause the patient to more radiation than regular X rays do. CAT scans can also be done without getting something harmful into the patient, so they are less risky than regular X rays.
    CAT scans provide exact, detailed information. They can quickly find such a thing as bleeding inside the brain. They are helping to save lives.
    小题1:What is NOT true of a CAT scan?
    A．It is safer than regular X rays.
    B．It makes use of computer techniques.
    C．It can stop the action of an organ for a short time.
    D．It gives clear pictures of active, moving body parts.
    小题2:The underlined words “a foreign object”（Para 3）most probably refer to     .
    A．a badly injured part inside the body
    B．a new thing that is unknown to the doctor
    C．a strange organ that has grown in the body
    D．an object that gets inside the body by chance
    小题3:What is the special use of the latest CAT scanners?
    A．It provides clear photos of moving organs.
    B．It can take 3-dimension（三维）pictures of inside organs.
    C．It won’t cause serious skin burns, cancer or other damage to the body.
    D．It helps to find out what is going on inside a person’s body without opening it up.
    小题4:We can infer from this passage that     .
    A．patients in front of CAT may suffer from a bit of radiation
    B．doctors need no opening-up of the body with CAT scanners
    C．CAT scanners are more expensive than regular X-ray machines
    D．CAT scanners can take photos of either the whole body or a part of it
    小题5:The best title of this passage might be        .
    A．the Newest Medical Invention
    B．New X-ray Machine to Save Lives
    C．How to Avoid the Damage of X Rays
    D．Advantages and Disadvantages of CAT Scanners

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Some years ago, on a hot summer day in south Florida, a little boy decided to go for a swim in the old swimming hole behind his house. He flew into the water, not realizing that as he swam toward the middle of the lake, an alligator (美洲鳄) was swimming toward the shore.
    His father working in the yard saw the two as they got closer and closer together. In utter fear, he ran toward the water, yelling to his son as loudly as he could.
    Hearing his voice, the little boy became alarmed and made a U – turn to swim to his father. It was too late. Just as he reached his father, the alligator reached him. From the dock, the father grabbed his little boy by the arms just as the alligator snatched his legs. That began an incredible tug – of – war (拔河) between the two. The alligator was much stronger than the father, but the father was much too passionate to let go. A farmer happened to drive by, took aim and shot the alligator.
    Remarkably, the little boy survived. His legs were extremely scarred by the vicious attack of the animal. And, on his arms, were deep scratches where his father’s fingernails dug into his fresh in his effort to hang on to the son he loved.
    The newspaper reporter who interviewed the boy asked if he would show his scars. The boy lifted his pant legs. And then, he said to the reporter, “But look at my arms. I have great scars on my arms, too. I have them because my dad wouldn’t let go.”
    You and I can identify with that boy. We have scars, too. No, not from an alligator, but the scars of a painful past. Some of those scars are unsightly and have caused us deep regret. But, some wounds, my friend, are because someone has refused to let go. In the midst of your struggle, someone has been there holding on to you.
    If you have the scars of someone’s love on your arms, be very, very grateful. Someone in your life did not and will not ever let you go.
    Never judge another person’s scars, because you don’t know how they got them.
    小题1: Which of the following is the most closely related to the underlined word “passionate”?
    A．determinedB．anxiousC．frightenedD．courageous
    小题2:When the boy told the newspaper reporter about the scars on his arms, he felt     .
    A．painful and fearfulB．regretful and panic
    C．proud and gratefulD．excited and thankful
    小题3:In the story the writer intends to tell us that     .
    A．scars always remind people of their past experiences
    B．wounds in the mind are more painful than those in the body
    C．a painful past always leaves scars on a person’s mind
    D．scars do not necessarily mean pain at all times
    小题4:Which of the following viewpoints will the writer most probably agree with?
    A．Be grateful to a painful past, for you can always learn something from it.
    B．Other people’s criticism or blame may hurt you, but if it is for your own good, you should take it thankfully.
    C．The swimming hole of life is filled with danger, but you don’t need to be too serious about it as someone will never let you go.
    D．If someone hurts you, be grateful to them, for they mean no harm

    查看答案和解析>>

    同步练习册答案