练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s a chance in million. People have made a census ( 普查 ) to colors of more than four thousand kinds of flowers and discovered that only eight of them are black. As we know, sunlight is formed by seven different colored lights. The wave length of each light is different, so the quantity of heat in each light is also different. Flowers, especially their petals ( 花瓣 ) , are easy to be harmed by high temperature. Black flowers can take in all the light waves which cause the flowers to dry up in a high temperature. So black flowers can rarely survive sunlight. But red flowers, orange flowers and yellow flowers can protect themselves from sunlight by reflecting the red light, orange light and yellow light, each of which has a large quantity of heat.
    小题1:It is _________ to see a black flower.
    A．impossibleB．seldomC．commonD．no chance
    小题2:The passage tells us that ________________.
    A．black flowers are so weak that it is difficult for them to grow up.
    B．there is only eight black flowers in nature.
    C．sunlight is formed by seven different colored lights, so the wave length of each light is different.
    D．black flowers can take in the light of all the wave lengths which make them dry up because of high temperature.
    小题3:Which of the following ideas is NOT true?
    A．People have found that only a few kinds of flowers are black.
    B．Flowers are easy to be harmed by very high temperature.
    C．Red, orange and yellow flowers can also absorb the light of all wave lengths.
    D．The black flowers cannot protect themselves from sunlight.

    小题1:B
    小题2:D
    小题3:C
    文章向我们解释了为什么黑色的花很少见的原因。
    小题1:推理题。根据第2,3行People have made a census ( 普查 ) to colors of more than four thousand kinds of flowers and discovered that only eight of them are black.4千种花中只有8个是黑色的。
    小题2:细节题。根据第6,7行Black flowers can take in all the light waves which cause the flowers to dry up in a high temperature.
    小题3:根据第6,7行可知只有黑色才可以吸收所有的波长的光波。
    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

    Today, traditional opinions about men still exist. A man has to be strong, brave, sports loving and manly. Anything less would not be considered manly. Sports such as football, basketball and boxing all tend (往往是) to be men’s sports. However, the dance of ballet is considered feminine because it requires nice movements. This tradition is shown in the movie, Billy Elliot.
    Billy Elliot is a movie that protests against this traditional view of men. Billy Elliot is an eleven-year-old boy that has a natural talent for ballet dancing, but his father will not allow it. Billy’s father wants him to take up boxing and become stronger, but Billy goes against his father’s wishes and takes up ballet dancing. This difference of opinion makes Billy sad. What’s more, his friends also laugh at him.
    After saving enough money, his father sends Billy to a weekly boxing course; however, Billy doesn’t enjoy boxing because he always loses in matches and is often hurt. His ballet teacher, Mrs. Wilkinson thinks that men or women should not be judged by the activities they like to do, so she tells Billy’s father that although he wants his son to make a good living, he should let his son do what he loves to do because he has a talent for it. When his father finally realizes the truth, Billy is surprised. In the end, with the help of his father, brother and all the people around him, Billy goes to the Royal Ballet Academy in London and becomes a very successful ballet dancer.
    小题1:The underlined word “feminine” in the first paragraph most probably means ______
    A．of menB．of childrenC．of womenD．of students
    小题2:Why is Billy laughed at by other children?
    A．He always loses in boxing matches.B．He isn’t strong.
    C．He looks like a girl.D．He loves ballet.
    小题3:What do we know about Billy?
    A．His teacher encourages him to take up ballet dancing.
    B．He does well in ballet dancing and boxing.
    C．He does what his father wants him to do.
    D．He has never taken up any men’s sports.
    小题4:From Billy’s story, we can see that _______.
    A．children should accept their parents’ opinions
    B．we should try to fight against traditional opinions
    C．men and women play different sports
    D．parents should let their children do what they are interested in

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Because earthquakes happen without warning, it’s important to take measures now to prepare. Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace, and car.
    　　1. Water
    　　A person needs at least 1/2 gallon(加仑) of water daily just for drinking. Store at least 1 gallon of water per person per day and be prepared for a 72-hour period. It is suggested that you buy bottled water. Keep bottled water in its original container and do not open it until you need to use it. Also, do check the “use by” date.
    　　2. Food
    　　It’s always a practical idea to keep a supply of non-perishable(不易腐烂的) food on hand. Have an enough supply of canned food, powdered milk, dried fruits, non-salted nuts and canned juices for at least 72 hours.
    　　3. Torch(手电筒) and spare batteries (电池)
    　　Keep a torch beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure that no gas leaks(泄露).Prepare a battery-powered radio and spare batteries. Most telephones will be out of order, so radios will be your best source of information.
    　　4. Clothes
    　　If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.
    小题1:Why should people prepare themselves for an earthquake?
    A．Because earthquakes can be known before they happen.
    B．Because earthquakes take place without warning.
    C．Because earthquakes usually take place in the neighborhood.
    D．Because it’s people’s daily work to prepare the earthquakes.
    小题2:You should prepare all of the following except ______.
    A．powdered milkB．fresh vegetablesC．dried fruitsD．canned juices
    小题3:According to the article we know that ______.
    A．we need to prepare some supplies only at home
    B．a telephone is the most important prepared thing
    C．after earthquakes you’d better use torch first but not matches
    D．clothes are used to protect your head
    小题4:If you live in a cold place, you should prepare _______.
    A．some warm clothes and bedding suppliesB．some hot water
    C．some batteriesD．some torches

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    More Americans are Googling themselves ------ and many are checking out their friends, co-workers and romantic interests, too.
    In a report Sunday, the Pew Internet and American Life Project said 47 percent of U.S. adult Internet users have looked for information about themselves through Google or another search engine.
    That is more than twice the 22 percent of users who did in 2002, but Pew senior research specialist Mary Madden was surprised the growth wasn't higher.
    "Yes it's doubled, but many Internet users have never done this simple act of plugging their name with search engines," she said.
    Americans under 50 and those with more education and income were more likely to self-Google because their jobs demand a certain online persona.
    Meanwhile, Pew found that 53 percent of adult Internet users admit looking up information about someone else, not including celebrities.
    Often, it's to find someone they have lost touch with. But looking up information about friends, relatives, colleagues and neighbors also was common.
    Although men and women equally searched for online information about themselves, women were slightly more likely to look up information about someone they are dating.
    In many cases, the search is done to find someone's contact information. But a third of those who have conducted searches on others have looked for public records, such as bankruptcies(破产) and divorce （离婚）proceedings. A similar number have searched for someone else's photo.
    Few Internet users say they Google themselves regularly —— about three-quarters of self-searchers say they have done so only once or twice. And most who have done so consider what they find accurate.
    Pew also found that teens were more likely than adults to restrict who can see their information at an online hangout(常去之处) like Facebook or News Corp's MySpace.
    小题1:The number of American adult Internet users______ Mary Madden.
    A．frightenedB．pleasedC．disappointedD．annoyed
    小题2:What does “ they” refer to in the seventh paragraph?
    A．common people B．scientists
    C．adults D．53 percent adult Internet users
    小题3:How many people have checked others’ photos?
    A．One- fifthB．One-fourthC．One- thirdD．A half
    小题4:What is the best title of the passage?
    A．Learn to Google YourselfB．Googling Oneself Is Popular
    C．New Performance OnlineD．Don’t Google Yourself Online

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    阅读下面短文，根据小题的具体要求，简要回答问题。
    UFO is short for Unidentified Flying Object. It’s also called Flying Saucer. It is one of the most popular topics in the 20th century. With films like Close Encounters of the Third Kind and ET in the 1970s came a rapid increase in reports of flying saucers and men from Mars. More than 20 countries said their people once saw the UFO and there were over 1,200 reports about the UFO. Some even said they saw aliens.
    In July, 1916, Gaynor was a nine-year-old girl and lived in North Wales. One day, on her way home from school, she saw a silver object in a field not far from her home. The object looked like a saucer. Gaynor was very scared. She stayed in the tall grass and watched the door of the strange object open. She saw two aliens wearing silver suits get ou. Then they use something to examine the ground. They were short and had pink eyes. After about half an hour, the two aliens went back into the object. Then it took off. When Gaynor got home, she told her mother about her unusual experience, but her family decided to keep quiet about it. They didn’t want others to laugh at their daughter. However, 18 months later, Gaynor told her story to UFO scientists. They found out that Gaynor told the truth.
    小题1:What does UFO stand for? (No more than 3 words)
    小题2:How did Gaynor feel when she saw the silver object like a saucer? (No more than 4 words)
    小题3:Why did Gaynor’s parents keep quiet about her experience ? (No more than 10 words)

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    "We do look very different; we're older. Leo's 38, I'm 37. We were 21 and 22 when we made that film. You know, he's fatter now -- I'm thinner.". So says Kate Winslet, who is thrilled at the 3-D re-release of Titanic to coincide with the 100th anniversary of the ship's demise. “ It happens every time I get on any boat of any kind." She recalls. There are all the people who want her to walk to the front of the ship and re-create her famous pose, arms flung wide. Most people remember the tragedy: The British passenger ship -- said to be unsinkable -- hit an iceberg and sank on April 15, 1912, during its maiden voyage from England to New York City. More than 1,500 people died. But little known is what the world learned from the sinking to prevent future incidents.
    Probably the greatest deficiency （不足）of the Titanic was that she was built 40 years before the widespread use of the wonderful invention radar(雷达). Her only defense against icebergs and hidden obstacles was to rely on manned lookouts. On that fateful night the eyesight of trained lookouts only provided 37 seconds of warning before the collision.
    Traveling at nearly 30 miles an hour the Titanic was moving far too fast to avoid the huge iceberg. The warning did prevent a head-on collision as the officer on the bridge managed to turn the ship slightly.
    The last ship to send a warning was the California. She was within ten miles of the Titanic during the disaster, but her radio operator went to bed at midnight and never received any of the SOS messages from the Titanic. That was one of the important lessons learned from the catastrophe, the need for 24-hour radio operators on all passenger liners.
    Another lesson learned was the need for more lifeboats. The Titanic remained afloat(漂浮) for almost three hours and most of the passengers could have been saved with enough lifeboats.
    1,500 passengers and workers died in the 28 degree waters of the Atlantic. Out of the tragedy, the sinking did produce some important maritime reforms. The winter travel routes were changed to the south and the Coast Guard began to keep an eye on the location of all icebergs. The new rules for lifeboats were obvious to all. There must be enough lifeboats for everybody on board.
    The most important lesson learned was that no one would ever again consider a ship unsinkable- no matter how large or how well constructed. Never again would sailors place their faith in a ship above the power of the sea.
    小题1:The text mainly tells us ______.
    A．the reason why the Titanic sank in the Atlantic Ocean
    B．how the unsinkable ship of Titanic sank in the Atlantic Ocean
    C．the lessons that we could learn from the accident of theTitanic
    D．the things we should do to protect the lives on the ship
    小题2:According to the passage, which of the following could we infer?
    A．If the captain had been more careful, he could have had the chance to save the Titanic.
    B．If radar had existed 40 years ago, the Titanic would have never disappeared from the world.
    C．If the lookout had had much more experience, he could have had the time to save the Titanic.
    D．If there had been enough lifeboats on the Titanic, the Titanic would not have sunk in the Atlantic.
    小题3:What would be the best title for the passage?
    A．Lessons from the TitanicB．Technology is Important
    C．Demands of PassengersD．Power of Sea
    小题4:What’s the sailors’ attitude towards the ships after the tragedy?
    A．They think there really exists the unsinkable ship.
    B．They think ships could eventually defeat the sea.
    C．They think there is no power that could control the sea.
    D．They think the bigger the ship is, the safer it is.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    You may think that sailing is a difficult sport, but it is really not hard to learn it. You do not need to be strong. But you need to be quick. And you need to understand a few basic rules about the wind.
    First, you must ask yourself, “Where is the wind coming from? Is it coming from ahead or behind or from the side?” You must think about this all the time on the boat. The wind direction tells you what to do with the sail.
    Let’s start with the wind blowing from the behind. This means the wind and the boat are going in the same direction. Then you must always keep the sail outside the boat. It should be at a 90° angle (角度) to the boat. Then it will catch the wind best.
    If the wind is blowing from the side, it is blowing across the boat. In this case, you must keep the sail half way outside the boat. It should be at a 45° angle to the boat. It needs to be out far enough to catch the wind, but it shouldn’t flap (摆动). It shouldn’t look like on a flagpole. If it is flapping, it is probably out too far, and the boat will slow down.
    Sailing into the wind is not possible. If you try, the sail will flap and the boat will stop. You may want to go in that direction. It is possible, but you can’t go in a straight line. You must go first in one direction and then in another. This is called tacking. When you are tacking, you must always keep the sail inside the boat.
    小题1:What should you consider first while sailing?
    A．Sailors’ strength.B．Wave levels.
    C．Wind directions.D．Size of sails.
    小题2:What does the word “It” underlined in Paragraph 4 refer to?
    A．The boat.B．The wind.C．The sail.D．The angle.
    小题3:What do you have to do when sailing against the wind?
    A．Move in a straight line.B．Allow the sail to flap.
    C．Lower the sail.D．Tack the boat.
    小题4:Where can you probably find the text?
    A．In a popular magazine.B．In a tourist guidebook.
    C．In a physics textbook.D．In an official report.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    Most people watching Jeremy Lin these past two months saw Jeremy Lin, New York Knicks star; but I, watching him, saw someone else. That was my elder brother, Bob, who is athletic and energetic. He could never sit still when he was in second grade; he had to get up every now and then and run around the room. And sure enough, he grew up to be a starting player for an N.C.A.A. championship lacrosse（长曲棍球）team. He was a Nike-endorsed marathoner, too, and reached the top of Mt. Everest, unguided, in his 50s.
    And yet my family never watched his lacrosse games. We did watch some of his marathons, but that wasn’t until he was in his 20s. When Bob was in his glory days, our Shanghainese-born parents were bent on getting him into medical school. There was a loving aspect to it: I can remember my father working through math books with him, lesson by lesson, at the big blackboard in the attic. Bob never did become a doctor, though; and neither did I. It wasn’t until my younger sister came along that someone in the family finally wore a white coat.
    Bob today could be the fittest 58-year-old on the planet. His doctor estimates his biological age at 35; he’s still climbing big mountains in the Himalayas. And, like Jeremy Lin, he’s charming. No one sees Bob without leaving with a laugh. He sometimes jokes he could be mayor of his building, and it’s true. To know him is to cheer for him.
    And yet my parents did not cheer for him. What if my mother had sat on the sidelines with her statistics, like Jeremy Lin’s mother? What if my father had played videos of athletes for my brother to watch and imitate? It’s hard not to wonder.
    And how did Jeremy Lin’s parents manage to do these remarkable things? Amy Chua, the tiger mother, recalls her immigrant father beating the kids whenever they mispronounced a Chinese word. How is it that Jeremy Lin’s immigrant father in particular, Gie-Ming Lin, encouraged his son to follow such an untraditional path?
    小题1:Bob’s glory days were those ________.
    A．when he was doing well in math
    B．when he was in second grade
    C．when he was made mayor of his building
    D．when he showed his talents in sports
    小题2:From the passage we can tell that Bob is ____________.
    A．active and optimistic
    B．clever and determined
    C．brave and helpful
    D．considerate and independent
    小题3:Which of the following statements is probably TRUE?
    A．Bob was always ignored by his parents
    B．Bob could also have been a sport star.
    C．Bob’s parents often watched his games.
    D．Nobody in the author’s family was a doctor.
    小题4:From the last two paragraphs we can infer that ___________.
    A．parents should always study together with their children
    B．parents should know how to educate their children properly
    C．children should be punished when they do anything wrong
    D．children should try to live up to the hopes of their parents

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    Some people are pessimistic(悲观的)when they think about the future. They say that, a hundred years from now, we will have used up most of the earths resources. We will have made our seas so dirty that we will not be able to eat fish from them. There will be so many people in the world that we will have to use all the countryside for housing; there will be no farmland left.
    Other people have a different idea about the future. In their view, the city of the future will be a huge pyramid-shaped(金字塔形的) building, which will be floating on the surface of the sea. About 5,000 families will live there, and there will also be schools, shops in it.
    In a hundred years’ time, people will not need to use oil. They will heat their homes with power from the sun.
    Think of space. Perhaps a station will be set up on the moon; people will be able to visit the moon as tourists. They may even spend their holidays in space, travelling from planet to planet.
    What an interesting picture!
    Many people don't think about the future. “I don't care. I’ll be dead. ”they say. But it is our duty to care because the world of a hundred years’ time will be the world of our children’s and their children after them.
    小题1:How many viewpoints are discussed here about the future?
    A．TwoB．ThreeC．FourD．Five
    小题2:In the pessimistic view, people will         in a hundred years ’time.
    A．have to use power from the sea
    B．have to live on the moon
    C．be able to grow food on the sea
    D．find it difficult to live on the earth
    小题3:Where will people live in the future in the optimistic view?
    A．On the moonB．On the seaC．In pyramidsD．On other planets
    小题4:The writer of the article seems to agree        .  
    A．with those who look at the bright side of the future
    B．with those who take a pessimistic view about the future
    C．with those who won’t trouble their heads about the future
    D．to none of these viewpoints

    查看答案和解析>>

    同步练习册答案