练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Whenever human populations have lived in forest areas, they have always cut down trees which they used for a number of purposes, for housing and ships and served as a source of heating fuel and timber. Growth of cities often meant expansion into forest areas, while even more trees were removed to provide space for agriculture. With the growing demand for paper, vast quantities of trees have also been cut down for paper production. These factors, along with many others, have been contributing to a dangerous phenomenon known as deforestation.
    In the last 5,000 years, humans have reduced forest from roughly 50 percent of the earth’s land surface to less than 20 percent. Most of this original, or old growth, forest cover is concentrated in three large areas: the Canadian and Alaskan boreal forest, the boreal forest of Russia, and the tropical forest of the northwestern Amazon Basin and the Guyana Shield. These areas comprise almost 70 percent of the world’s remaining original forest cover. In most places, the rate of deforestation is increasing, with the alarming result of 16 million hectares disappearing worldwide every year.
    Loss of forest does not just mean the decline of natural resources. There are several other factors that make deforestation seriously harmful to both the human and natural worlds. One of them is changes in the global climate. For example, forest clearance is releasing substantial volumes of carbon dioxide (CO2) into the atmosphere as vegetation is burnt or decays. It has been suggested that this is a significant factor in global warming. Moreover, about 10 percent of the world’s tree species are in danger of extinction as a result of deforestation. Deforestation also threatens biological diversity through the destruction of wildlife habitats, which endangers a number of animal species and leads to their potential disappearance. Species are particularly easy to extinction in tropical rainforests because many species have few individuals per unit area, which makes reproduction more difficult. Finally, since forests play an important role in storing water and stabilizing soil, deforestation and the resulting change in land use cause soil erosion (腐蚀) and other forms of land degradation.
    72.   The passage discusses all of the following EXCEPT the ________.
    A. causes of deforestation                                   B. consequences of deforestation
    C. management of deforestation                      D. rate of deforestation
    73.   The word “diversity” in the last paragraph probably means “________”.
    A. variety                                                                  B. expansion           
    C. development                                                      D. advantage
    74.   Why does the author mention fuel and timber in Paragraph 1?
    A. To explain the rate of deforestation.
    B. To compare them with housing and ships.
    C. To show the dangers of deforestation.
    D. To illustrate the causes of deforestation.
    75.   Which of the following sentences summarizes Paragraph 3 best?
    A. Deforestation threatens biological diversity.
    B. Deforestation has many harmful consequences.
    C. Deforestation causes changes in global climate.
    D. Deforestation should be stopped.
    72. C         73. A         74. D 75. B
    略
    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：高中英语 来源：不详 题型：阅读理解

             According to the report by Baekeland and Hartmann, two American authoritative psychotogical research centres, the "short sleepers" had been more or less average in their sleep needs until the men were in their teens．But at about age 15 or so, the men voluntarily began cutting down their nightly sleep time because of pressures from school, work and other activities. These men tended to view their nightly periods of unconsciousness as bothersome interruptions, in their daily routines.
    In general, these "short sleeps" appeared ambitious, active, energetic, cheerful,, conformist （循规蹈矩的） in their opinions, and very sure about their career choices．They often held several jobs at once, or workers full - or part - time while going to school．And many of them had a strong urge to appear "normal" or "acceptable" to their friends and associates．When asked to recall their dreams, the "short sleepers" did poorly．More than this, they seemed to prefer not remembering．In similar fashion, their usual way of dealing with psychological problems was to deny that the problem existed, and then to keep busy m the hope that the trouble would go away．The sleep patterns of the “short sleepers" were similar to, but less extreme than, sleep patterns shown by many mental patients categorized as manic （疯人）.
    The "long sleepers" were quite different indeed．Baekeland and Hartmann report that these young men had been lengthy sleeps since childhood．They seemed to enjoy their sleep, protected it, and were quite concerned when they were occasionally deprived （剥夺） of their desired 9 hours of nightly bed rest．They tended to recall their dreams much better than the "short sleepers．" did．Many of the "long sleepers" were shy, anxious, introverted （内向）, inhibited （压抑） , passive, mildly depressed, and unsure of themselves （particularly in social situations）．Several openly states that sleep was an escape from their daily problems．
    50．According to the text, which is probably the writer' s real attitude towards these two living habits ____．
    A．both of them are healthy habits  
    B．not both of them are unhealthy habits
    C．either of them is not unhealthy habits
    D．neither of them is healthy habits
    51．When sometimes they cannot enjoy adequate sleep, the long sleepers might ____．
    A．feel extremely depressed         B．become energetic
    C．appeared disturbed          D．feel disappointed
    52．The writer implies （暗示） that short sleepers _____ in the text．
    A．are ideally vigorous even under the pressures of life
    B．often neglect the consequences of inadequate（不足的）sleep
    C．do not know how to relax properly
    D．are more unlikely to run into mental problems

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Every people has its own way of saying things, its own special expressions. Many everyday American expressions are on colors.
    Red is a hot color. Americans often use it to express heat. They may say they are red hot about something unfair. When they are red hot they are very angry about something. The small hot tasting peppers found in many Mexican foods are called red hots for their color and their fiery taste. Fast loud music is popular with many people. They may say the music is red hot, especially the kind called Dixieland jazz.
    Pink is a lighter kind of red. People sometimes say they are in the pick when they are in good health. The expression was first used in America at the beginning of the twentieth century. It probably comes from the fact that many babies are born with a nice pink color that shows that they are in good health.
    Blue is a cool color. The traditional blues music in the United States is the opposite of red hot music. Blues is slow, sad and soulful. Duke Ellington and his orchestra recorded a famous song – Mood Indigo – about the deep blue color, indigo. In the words of the song: “You ain’t been blue till you’ve had that Mood Indigo.” Someone who is blue is very sad.
    The color green is natural for trees and grass. But it is an unnatural color for humans. A person who has a sick feeling stomach may say she feels a little green. A passenger on a boat who is feeling very sick from high waves may look very green.
    Sometimes a person may be upset because he does not have something as nice as a friend has, like a fast new car. That person may say he is green with envy. Some people are green with envy because a friend has more dollars or greenbacks. Dollars are called greenbacks because that is the color of the back side of the paper money.
    The color black is used often in expressions. People describe a day in which everything goes wrong as a black day. The date of a major tragedy is remembered as a black day. A blacklist is illegal now. But at one time, some businesses refused to employ people who were on a blacklist for belonging to unpopular organizations.
    小题1:If you had your wallet stolen while doing some shopping, you may call it        .
    A．a white dayB．a black dayC．a red dayD．a green day
    小题2:Suppose a Mr. Brown says he is very happy because his three children are all in the pink, this means all his children are         .
    A．lucky and wealthyB．gentle and modest
    C．fit and healthyD．creative and energetic
    小题3:When she got home and found nothing had been done by her husband, Jane was really      .
    A．red hotB．greenC．blueD．black
    小题4:In the following paragraph, the writer might tell the reader something about         .
    A．unpopular polarizations in the world
    B．people’ response towards a black day
    C．the influence of the traditional blues
    D．more words about color, such as brown

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Suppose you work in a big firm and find English very important for your job because you often deal with foreign businessmen. Now you are looking for a place where you can improve your English, especially your spoken English.
    Here are some advertisements about English language training from newspaper. You may find the information you need.
    Global English Center
    ﹡General English in all four skills: listening, speaking, reading, and writing.
    ﹡3-month (700 yuan), 6-month (1,200 yuan) and one-year (2,000 yuan) courses.
    ﹡Choices of morning or evening classes, 3 hours per day, Mon－Fri.
    ﹡Experienced college English teachers.
    ﹡Close to city center and bus stops.
    Tel: 67705272            Add: 105 Ahongshan Road, 100082
    Modern Language School
    ﹡Special courses in English for business, travel, banking, hotel management and office skills.
    ﹡Small classes(12-16 students) on Sat. &Sun. from 2:00－5:00 p.m.
    ﹡Native English teachers from Canada and the USA.
    ﹡Language lab and computers supplied.
    ﹡3-month course: 1,050 yuan; 6-month course: 1,850 yuan.
    Write or phone: Modern Language School, 675 Park Road. 100056
    Tel: 67353019
    The 21st Century English Training Centre
    ﹡We specialize in effective teaching at all levels.
    ﹡We offer morning or afternoon class, both three months and a half at a cost of 800 yuan.
    ﹡We also have a six-week TOEFL preparation class during winter and summer holidays.
    ﹡Entrance exams: June. 1 and Dec. 1
    ﹡Only 15-minute walk from city centre.
    Call 67801642 for more information
    The International House of English
    ﹡Three/Six- month English courses for students of all levels at a very low cost: 60 yuan for 12 hours per week: convenient class hours: 9:00－12:00 a.m. and 2:00－5:00 p.m.
    ﹡A 4-month evening programme specially for developing speaking skills (same cost as day classes).
    ﹡Free sightseeing and social activities
    ﹡Very close to the Central Park. For further information call 67432308
    67. You work from 9:00 a.m. to 4:30 p.m. every day. Which school will you choose?
    A. Global English Center and Modern Language School.
    B. Global English Center and the International House.
    C. Modern Language School and the 21st Century.
    D. The 21st Century and the International House.
    68. The 21st Century is different from the other three schools in that______.
    A. its teaching quality is better         B. it is nearest to the city centre
    C. its courses are more advanced       D. it requires an entrance examination
    69. You will probably prefer to go to the International House because it _________.
    A. offers free sightseeing and social activities  B. has a special course in spoken English
    C. costs less than the other schools          D. has native English teachers
    70. If you take the evening programme at the International House, you will pay about _______.
    A. 60 yuan     B. 240 yuan     C. 720 yuan     D. 960 yuan

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    Millions of young people are writing blogs. Millions of others are reading them. The word "blog" is a short way of saying Web log.
    Many popular Web sites now offer free, easy ways to create personal Web pages and fill them with writings and pictures. Web sites called "Facebook" and "MySpace" are some of the most popular blog sites for young people. Many young adults use their blogs to write about daily activities and events in their lives. They also provide a place for people to write their ideas and opinions and how they think of others’ ideas.
    Blogs offer young people a place to show their writings and feelings. They can also be helpful to connect young people with others. But blogs can become dangerous when they are read on the Internet by millions of people all over the world.
    Recent studies show that young people often provide their names, age and where they live on the Internet. That may not be safe for them. This personal information puts them at risk of being searched out by dangerous people who want to hurt them. Many students do not know about privacy and are surprised to learn that adults can read their personal daily records easily. Students can also get into trouble when they put information about others on their blogs. 
    As a result, many schools have banned the use of blogging web sites on school computers. Many schools have also begun teaching parents about the web sites. Parents should know what their children are doing online and should read their blogs to make sure they are not giving out private information. One way to keep away from these problems is to use programs so that blogs can be read by "friends only." people can read the website only if they know a secret word chosen by the blogger.
    60. "Facebook" and "MySpace" are ________.
    A. school subjects                               B. computer programs
    C. school online BBS                          D. blog sites for young people     
    61. Blogs may be dangerous because________.
    A. they get in the way of studies         B. they are not allowed for school students
    C. surfing the Internet is bad for eyes D. personal information can be found in blogs easily
    62. This passage is mainly about _________.
    A. the safety of children’s blogs         B. how to search the internet
    C. students’ behavior at school             D. communicating with parents at home
    63. According to the passage, many schools help children avoid blog problems by doing
    everything EXCEPT________.
    A. teaching parents about the web sites
    B. asking students to use programs to refuse strangers
    C. telling school students not to make any net friends
    D. stopping students from blogging on school computers   
    64. You can enjoy your blog safely if________.
    A. you write your blog at school
    B. use a secret number for friends to enter your blog
    C. your parents have little knowledge about websites
    D. you show all your writings and feelings in your blog

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    People like to look in the mirror often when they have a young and beautiful face. However, when one grows old, nobody wants to see their wrinkled old face in the mirror any more. So, many old people seldom look at their faces in the mirror. This is completely wrong.
    According to Wu Zhenyun, a professor from the Psychological Research Institute under the Chinese Academy of Sciences, a person’s willingness to look in the mirror can reflect his or her mentality. When people don’t care too much about their age, they will try to carry themselves with ease and natural poise (姿态). They don’t mind looking in the mirror to see their own faces. Some people even love to look in the mirror from time to time to see whether they keep a good appearance. In this way, mirror becomes their best friend that help them to look confident.
    On the other hand, some people are afraid of being old. They don’t want to see the wrinkles on their face and their hair turning grey. So they don’t want to look in the mirror. This actually reflects a negative attitude they hold towards life. In the long term, they might suffer from psychological pressure or some sort of depression, which is actually not a wise act.
    “ Everyone can make themselves look charming at every age stage. If one is confident, one will always look beautiful, it shows that they accept themselves.” professor Wu said.
    Mirror cannot only give confidence to one. By looking in the mirror, one can even find the traces of some diseases from one’s own face.
    67.Why does the mirror become the best friend for some people?
    A. Because it brings much confidence to them.
    B. Because it makes them more beautiful.
    C. Because it tells whether they are clean or not.
    D. Because it helps them find their own faults.
    68.The fact that some people are afraid of looking in the mirror reflects that______.
    A. they suffer from metal disease  B. they treat life in a negative way      
    C. they are too ugly              D. they can’t bear the pressure of being old
    69. The text tells us that______.
    A. if you are willing to look in the mirror you are getting old
    B. everyone can become attractive at any age
    C. confidence can make a person look beautiful
    D. old people will accept the reality when they are old
    70. The writer wrote this passage to______.
    A. advise people to look in the mirror constantly
    B. reflect different attitude towards looking into a mirror
    C. introduce a way of finding signs of disease from one’s face
    D. analyze why people like and dislike to look in the mirror

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    “Cool”is a word with many meanings．Its old meaning is used to express a temperature that is a little bit cold．As the world has changed，the word has had many different meanings．
    “Cool”can be used to express feelings of interest in almost anything.When you see a famous car in the street，maybe you will say，“It's cool．”You may think，“He's so cool，”when you see your favourite footballer．
    We all maximize（扩大） the meaning of“cool”．You can use it instead of many words such as “new” or “surprising”．Here's an interesting story we can use to show the way the word is used．A teacher asked her students to write about the waterfall（瀑布）they had visited．On one student's paper was Just the one sentence，“It's so cool．”Maybe he thought it was the best way to show what he saw and felt．
    But the story also shows a scarcity（缺乏）of words．Without “cool”，some people have no words to show the same meaning．So it is quite important to keep some credibility（可信性）．Can you think of many other words that make your life as colourful as the word “cool”？ I can．And I think they are also very cool．
    66．We know that the word "cool" has had ________.
    A．only one meaning               B．no meanings
    C．many different meanings         D．the same meaning
    67．In the passage，the word“express”means“________”.  
    A．see                 B．show         C．know                   D．feel
    68．If you are _______ something，you may say，“It’s cool.”
    A．interested in                   B．angry about
    C．afraid of                      D．unhappy with
    69．The writer takes an example to show he is ________ the way the word is used．
    A．pleased with                  B．strange to
    C．worried about                  D．careful with
    70．In the passage，the writer suggests（暗示）that the word “cool”________．
    A．can be used instead of many words
    B．usually means something interesting
    C．can make your life colourful
    D．may not be as cool as it seems

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    What’s that smell? Do you hear that noise? Taste this! Look at me! Feel this, isn’t it soft? When you hear, or even use these phrases, you probably don’t stop to think about why we use them. Well, it’s because of our senses. Without us even knowing, our sense organs (nose, eyes, ears, tongue, and skin) are taking in information and sending it to the brain for processing. If we didn’t have them, we would not be able to smell, see, hear, taste, or touch anything!
    Senses are the physical means by which all living things see, hear, smell, taste, and touch. Each sense collects information about the world and detects changes within the body. Both people and animals get all of their knowledge from their senses, and that is why senses are so important.
    All senses depend on the working nerve system. Our sense organs start to work when something stimulates（刺激） special nerve cells, called receptors, in a sense organ. Once stimulated, the receptors send nerve impulses along sensory nerves to the brain. Your brain then tells you what to do. For example, your sound receptors are often attacked by billions of sound waves. When these signals reach the part of the brain called the cerebral cortex（大脑皮层）, we become conscious of the sounds.
    Our group really learned a lot about the senses while creating this website. We hope that you are able to get just as much out of it. Please feel free to comment about anything on the site by e-mailing us. Also, don’t forget to sign the guest book! Thanks for visiting our site. Come back soon!
    60. This article is most probably taken from a _____.
    A. newspaper                B. magazine                      C. website                      D. novel
    61. Senses are very important because _____.
    A. both people and animals get all of their knowledge from them
    B. they are used to communicate with others
    C. they can prevent the organs from being attacked
    D. they can tell you what the stimulus is
    62. Which of the following tells you what stimulate you?
    A. The nerve cell.         B. The receptor.             C. The nerve impulse.   D. The brain.
    63. According to this article, the following are all functions of the senses, EXCEPT _____.
    A. collecting information about the world  
    B. detecting changes within the body
    C. sending nerve impulses to the brain 
    D. serving the brain when needed

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Professional adventurer Mike Horn never met a challenge he didn’t welcome. In fact according to Horn, “The impossible exists only until we find a way to make it possible.”
    As a child in Johannesburg, South Africa, Horn excelled at sports and loved adventure. But it wasn’t until he moved to Switzerland in 1990 that his life of adventure really began.
    Horn had always loved sports and taking risks, and he was known for his crazy feats. He traveled in the South American Andes Mountains in the early 90s and then in 1997 crossed the entire continent on foot. He finished by floating 7,000 km down the Amazon River!
    In 1999, H      orn began a solo trip around the world following the equator,without the use of any motor-powered transportation. When he finished successfully 17 months later, he became the first person to accomplish the feat.
    Horn’biggest challenge to date came in 2006. He and a fellow adventurer walked from Russia to the North Pole in the sunless winter. Traveling through the winter darkness, he encountered polar bears and many other dangers.
    In 2008, Horn began another unique adventure –one that will take four years to complete. Instead of trying to achieve more personal goals, Horn is now dedicated to sharing his knowledge and experience with others.
    He calls his latest expedition the “Pangaea Expedition.”with “Pangaea” standing for “a Pan Global Adventure for Environmental Action.”By the end of this expedition, Horn will have traveled 100,000 km and crossed all of the continents and oceans. But this time he won’t be going alone: He’s choosing young people from around the world, aged 13 to 20, to accompany him. Twelve young men at a time will participate in one of 12 different projects, ranging from studying glaciers to treating water sources.
    The journey will take place onboard Horn’s 35-meter saiboat , the Pangaea which will become a floating science class . Along with a team of scientists, Horn plans to teach the young explorers about protecting and preserving the earth.
    In perhaps his most important expedition, Horn will pass down his passion for Earth’s wonders to the next generation.
    64.Which of the following is NOT ture?
    A. He met with polar bears and many dangers in 2006 when Horn walked to the North Pole with another adventurer.
    B. He loved sports, Earth’s wonders and taking risks.
    C. It took Horn 17 months to complete his solo trip around the world without any Motor-powered transportation.
    D. He really began his life of adventure in te 1990s.
    65. The underlined sentence probably means____________.
    A. He was afraid of challengers                          B. He never met challengers
    C.He didn’t welcome challengers                       D. He was willing to meet challengers
    66. In his latest “Pangaea Expedition”, Horn__________.
    A. will have covered 100,000km and crossed only all the continents
    B. will choose young men to take part in the 12 different projects
    C. will be going around the world by himself
    D. intends to teach the young men how to make expeditions
    67. What is the best title for the passage?
    A. Mike Horn-an adventurer with a cause           B. The Pangaea Expedition
    C. How Mike Horn makes expeditions.               D. How to make expeditions.

    查看答案和解析>>

    同步练习册答案