练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    We each have a unique genetic (基因的，遗传的) make-up. Every cell of your body has the same set of about 100,000 separate genes made of DNA. These are the instructions for producing a person. Genes decide everything from the colour of your skin to the way your brain works. You have one of several billion combinations of DNA which come from the random mixing of your parents’ genes. Except for identical twins (同卵双胞胎), no one has the same combination as another person. You are unique! You are unique in another way too: in the way you are raised and all the experiences you have from before birth to adult life. These experiences influence you, your behaviour and attitudes, and the choices you make.
    But are genes or life experiences more important in shaping your appearance and personality? Scientists are studying twins to find out. One set of twins occurs every 70 births---some are identical and others are non-identical twins. Identical twins are special because they share exactly the same genes and often the same environment. Non-identical twins are more like ordinary brothers and sisters.
    Some identical twins have been adopted and brought up in different homes. With identical genes but a different home environment, scientists can study twins to see how much a particular feature depends on the genes we inherit. For example, we know that eye problems, like short-sightedness, are mostly genetic. But resistance to pain is largely dependent on experiences. Genes also influence our eating habits. Identical twins brought up apart often like to eat at the same time of day and feel full after eating the same amount. Non-identical twins in similar circumstances have more varied eating habits. Identical twins are also more likely to follow the same patterns for marriage and divorce than non-identical twins.
    Scientists are trying to identify the different genes that influence our behaviour. Some people are thrill-seekers and get into risk-taking and adventurous activities. They take up extreme sports like bungee jumping and possibly take drugs. Scientists have discovered a gene which affects this.
    We could ask, “Are our lives determined by our genes or our upbringing?” Scientists are learning more all the time, but it is certainly true that both are important in making us who we are.
    小题1:What is the main idea of the first paragraph?
    A．We cannot easily change our physical appearance.
    B．How we turn out depends on our parents’ genes.
    C．Everyone has a physical double somewhere in the world.
    D．Both our genes and our experiences make us who we are.
    小题2:Why are scientists studying twins?
    A．To find out how many twins are born every year.
    B．To discover what shapes us as individuals.
    C．To compare differences between twins.
    D．To study brother-and-sister relationships.
    小题3:According to the passage, __________.
    A．one in 70 twins are genetically identical
    B．non-identical twins are usually not of the same sex
    C．twins separated at birth behave exactly the same
    D．identical twins are genetically the same
    小题4:Which of the following is most affected by experience according the passage?
    A．Eating habits. B．Eye-sight. C．Pain resistance. D．Marriage patterns.
    小题5:What does the underlined “this” in Paragraph 4 refer to?
    A．Our love of sport.B．Our attitude to risk-taking.
    C．Our skill at bungee jumping.D．Our ability to take drugs.

    小题1:D
    小题2:B
    小题3:D
    小题4:C
    小题5:B
    究竟是遗传还是环境导致了我们的个性？文章对此进行了说明。
    小题1:D 段落大意题。第一段讲述的正是基因和个人经历塑造了每个人。前半段讲述的是基因的作用，后半部分讲述的是个人经历的作用，故D正确。
    小题2:B 细节题。根据第二段1,2行But are genes or life experiences more important in shaping your appearance and personality? Scientists are studying twins to find out可知B 正确。正是为了发现是什么形成了我的个性，所以才催基因基本一样的双胞胎进行研究。
    小题3:D 细节题。根据第二段3,4行Identical twins are special because they share exactly the same genes and often the same environment.可知D正确。
    小题4:C 细节题。根据第三段4,5行But resistance to pain is largely dependent on experiences.说明C正确。、
    小题5:B 猜测词义题。根据第四段2,3行Some people are thrill-seekers and get into risk-taking and adventurous activities. They take up extreme sports like bungee jumping and possibly take drugs.说明这里的it就是指人们喜爱冒险活动原因。故B正确。
    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

    Common sense would tell us that physically active children may be more likely to become active and healthy adults.
    In the United States, elementary and middle schools are advised to give students two and a half hours of physical activity a week. That is what the Centers for Disease Control and Prevention and the American Heart Association recommend. They say high schools should provide about four hours of physical activity each week.
    Yet many schools across the country have reduced their physical education programs. Just this week, a study reported that life expectancy has fallen or is no longer increasing in some parts of the United States. The situation is worst among poor people in the southern states, and especially women. Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country.
    In 2006, a study found that only four percent of primary schools provided daily physical education all year for all grades. This was true of eight percent of middle schools and two percent of high schools. The study also found that twenty-two percent of all schools did not require students to take any P.E.
    Charlene Burgeson , a health expert says one problem for P.E. teachers is that schools are under pressure to put more time into academic subjects. Also, parents may agree that children need exercise in school. Yet many parents today still have bad memories of being chosen last for teams because teachers favored the good athletes in class.
    But experts say P.E. classes have changed. They say the goal has moved away from competition and toward personal performance, as a way to build a lifetime of activity. These days, teachers often lead activities like weight training and yoga.
    Some parents like the idea of avoiding competitive sports in P.E. class. Yet others surely dislike that idea. In the end, schools may find themselves in a no-win situation.
    小题1: The underlined word “expectancy” in Paragraph 3 probably means “       ”                            
    A．qualityB．lengthC．exceptionD．depth
    小题2:According to the passage which of the following may not lead to poor health?
    A．Fatness.B．Smoking
    C．High blood pressure.D．Health service
    小题3: What can be inferred after you read this passage?
    A．Physical activities are becoming more and more popular in American schools.
    B．All the schools provided daily physical education all year for all students.
    C．Parents think children need physical education for their bad memories.
    D．Students spent less time on physical education for academic pressure.
    小题4: What is the main idea about this passage?
    A．P.E. is the most important subject for all students.
    B．P.E has changed its goal for some reasons in America.
    C．It introduces us the present situation of P.E in American schools and its cause.
    D．P.E can help students improve their academic subjects.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Are you worried by the rising crime rate? If you are, you probably know that your house, possessions(财产) and person are increasingly in danger of suffering from great rise in the cases of burglary(夜盗;抢劫) and attack.
    Figures show an ever-increasing crime rate, but it is only too easy to imagine "It will never happen to me". Unfortunately, statistics show that it really can happen to you and, if you live in a large city, you run twice the risk of being a victim.
    Fortunately, there is something definite which you can do. Protect Alarms can help to protect your house with a burglar alarm system（报警系统） which is effective, simple to operate and easily affordable.
    You must remember that owning a burglar alarm is no indication(暗示) that your house is packed with valuable possessions. It quite simply indicates to unwelcome visitors that yours is one house they will not break into easily, so they carry on to an unprotected house where their job is made a lot easier.
    Send now for our free leaflet(宣传册) telling you how we can Protect Alarm your house quickly, easily and cheaply. Complete and tear off the slip below and post it to us. Postage is free. Also, telephone us on 327 6721 where we have a round-the-clock answering service. It costs nothing to find out about Protect Alarm.
    小题1:Anyone who takes an interest in the crime rate will, according to the text, be aware that ___________.
    A．more burglars are being caught than ever before
    B．people have more possessions to worry about nowadays
    C．burglars are more at risk than they used to be
    D．homes are more likely to be broken into nowadays
    小题2:It seems that people who live in cities are ____________
    A．more often victims than those living in other areas
    B．of the opinion that statistics are wrong
    C．twice as well as people living in other areas
    D．of the opinion that burglars only rob unprotected homes
    小题3:The article suggests that possessing an alarm system will _________.
    A．show burglars that you have something worth stealing
    B．persuade burglars not to break into your house
    C．make the burglars' job less complicated
    D．persuade burglars to try again another time
    小题4:In order to find out more information about this alarm system one can _______.
    A．buy a leaflet
    B．write enclosing a stamped, addressed envelope
    C．sign a contract
    D．phone at any time of day or night
    小题5:The underlined word "Figures" in the second paragraph can be replaced by"      "
    A．PicturesB．FingersC．NumbersD．Mathematics

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Homeschool materials are every where .In fact, as a homeschool parent, one of the best learning tools you can use is making use of songs. Think of it .When you hear your favorite songs come on the radio and as soon as the lyrics begin , you can join in at once and sing along. Perhaps,  you haven’t heard this song for months or even years! Doesn’t it amaze you? There is no doubt that learning through lyric and rhyme(韵律)is a great way!
    With some careful searching , you can come up with many songs ,lyrics ,and rhymes that fit well with your homeschool lesson plan or unit study. Some places even have songs that have the same themes with the lessons. They are perfect to be used to add to your homeschool materials ! Even if you don’t find a particular great song for what you may be teaching at the time, you can write your own. With a little practice, you can not only write your own songs over time but also be surprised how good you can become.
    Take any of the traditional chidren’s  songs and modify(修改) them to meet your needs .This is an interesting exercise for both you and your children. It helps you with reading , recognizing(识别)sounds, and improving memory. Soon you’ll have your children want to write and sing their own songs!
    Song and singing is such a great way to teach your children. It’s fun and relaxing. Sometimes. you really need such a break from your study and work .It will cost nothing. So turn your creativity and imagination loose and have fun .Whisrle (吹口哨) while you work!
    小题1:In Paragraph 1,the author proves his point through______
    A．his favorite songsB．his own experience
    C．people’s common experienceD．singing along with the radio
    小题2:What does the underlined word “They” in  Paragraph 2 refer to?
    A．Songs.B．Themes.C．LessonsD．Places
    小题3:According to the passage, modifying traditional songs can ______
    A．improve people’s writing ability
    B．make materials more interesting
    C．help children sing better
    D．help people improve memory
    小题4:The passage is probably written to______
    A．homeschool students
    B．homeschool parents
    C．all the children
    D．school teachers
    小题5:Which of the follwing would be the best title for the passage?
    A．How to raise children at home
    B．How to find homeschool materials
    C．Homeschool materials in songs
    D．Children’s singing materials

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Australians have been warned they face a life or death decision over their water —— drink recycled sewage(污水) or die.
    With the drought(干旱) continuing, the country is set to be forced to use purified waste water for drinking, even if there is great opposition to the measure
    Queensland has become the first state to introduce the policy after a warning from its premier.
    “I think in the end, because of the drought, all of Australia is going to end up drinking recycled purified water,” said former Premier Peter Beattie. “These are difficult decisions, but you either drink water or you die. There’s no choice. It's liquid gold; it a matter of life and death.”   
    Beattie said Australia's second largest state would become the first to use recycled water for drinking．
    Water is recycled in Britain and parts of northern Europe along with the US and Israel．
    But Australians have never liked the idea．
    To try to change the way Australians think, John Howard  and  Environment Minister Malcolm Turnbull have Supported Queensland’s move.
    “I am very strongly for recycling and Mr Beattie is right and I agree with him completely,” Howard said．
    “Australian cities, all now facing water shortages because of the worst drought on record, must start to use recycled water,” added Turnbull. “All of our big cities have to widen the range of water sources to include sources which are not dependent on rainfall.”
    小题1:What is the passage mainly about?
    A．Australians face the choice of life and death．
    B．Continuing drought forces Australians to drink recycled sewage．
    C．Mr Beattie is worried about his people’s health．
    D．We should avoid drinking recycled water to keep healthy．
    小题2:According to the passage, which of the following is TRUE?
    A．The drought is the worst one in the droughts recorded in Australian history．
    B．Australia’s largest state has become the first state to introduce the policy．
    C．No other countries but Australia decides to drink recycled water．
    D．Nobody disagrees to the idea of drinking recycled purified water．
    小题3:It can be inferred from what Peter Beattie said that_________.
    A．he gives orders to drink purified waste water.
    B．if the decision is made, people won't survive the drought
    C．it is painful for him to see his people drink recycled sewage
    D．it's up to you to make a life or death decision

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    A common misconception (误解) -about scholarships is that they are only available for the smartest students with the highest GPAs. However, this just isn't even close to true. There are scholarships out there for every type of student seeking a college education. Let's take a look at each type a bit more in depth.
    Academic Scholarships
    Academic scholarships are also often referred to as merit (优点) scholarships, though a merit scholarship can mean anything that has some level of contest to it. These are fox; the students with the 4.0 GPAs, the years as a part of several extracurricular (课外的) activities and the well- rounded applications. They typically have the highest payouts and are considered very well- known as they are often national awards.
    Athletic Scholarships
    For students with strong academics (学业的) and physical skills, athletic scholarships are the way to go. There is practically a scholarship for every single sport, from volleyball to football; gymnastics to cheerleading. So, if you are good at anything physical, you should definitely pursue an athletic scholarship.
    Scholarships for Minorities
    There are also many scholarships for minorities available. Some of these are general and for "all minorities as a collective whole, while others are intended for individual ethnic (种族的) groups. It is also a good idea to apply for a minority scholarship if you are part of fully of a certain ethnicity. You will get to represent your culture and possibly win money -- what more could you ask for?
    Scholarships for Women
    As with the scholarships for minorities above, there are also scholarships specifically for women. Since colleges were dominated (主宰) by men for many years, scholarships have been created for strong, career-minded women that need assistance paying for college expenses. If you are female, it is strongly recommended you pursue a scholarship for women. Moreover, scholarships for women are typically available in just about any field. Be specific!
    小题1:In the author's opinion, ______.
    A．most people are well - informed about scholarships
    B．most people think scholarships should go to the smartest students
    C．most people have some misunderstanding about scholarships
    D．most people deserve scholarships though not having applied for them
    小题2:Tom does well in his lessons and is especially good at sports. The best scholarship he can apply for ______.
    A．Academic ScholarshipsB．Athletic Scholarships
    C．Scholarships for MinoritiesD．Scholarships for Women
    小题3:Alice is an Indian -American. She prefers to study her own culture and something about ethnology (民族学). Then she'd better apply for ______.
    A．Academic Scholarships B．Athletic Scholarships
    C．Scholarships for Minorities D．Scholarships for Women
    小题4: How many scholarships are intended for all ethnic students?
    A．One.B．Two.C．Three.D．Four.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    The effects of air pollution on natural conditions have been a disturbing problem for many years. Some scientists hold the view that the air inside houses may be more dangerous than the air outside. It may even be one hundred times worse.
    Most scientists agree that every modern house has some kind of indoor pollution, which can cause a person to feel tired, to suffer eye pain, headache and other problems. Believe it or not, some pollutants can cause breathing diseases of blood and even cancer.
    What made us feel relieved is that there’s growing concern about the problem now. It is true that when builders began constructing houses and offices they did not want to waste energy. To do this they built buildings that prevented or limited the flow of air between inside and outside. For the same purpose, man-made building materials were employed to build houses, which are now known to let out some harmful gases.
    Facing the serious challenge, scientists have been searching for a way to handle the problem. To everyone’s delight, they discovered a natural pollution control system for building—green plants, though they do not really know how plants control air pollution. Scientists suppose that a plant’s leaves absorb or take in the pollutants and in exchange gives out oxygen through its leaves and tiny organizations on its roots. Therefore they recommend that all buildings should have one large plant or several small plants inside for every nine square meters of space. Because studies indicate that different plants absorb different chemicals, the most effective way to clean the air is to use different kinds of plants. In conclusion, having green plants inside your house can make it a prettier and healthier place. Why not try?
    小题1:Which of the following statements is TRUR?
    A．Outside air pollution is more harmful than the air inside.
    B．Scientists have discovered how plants control air pollution
    C．Indoor air pollution may cause diseases including cancer.
    D．Only large plants can absorb harmful gases indoors.
    小题2:According to scientists, some kind of indoor pollution can be found in ________.
    A．every old building
    B．every modern house
    C．all kinds of houses
    D．all kinds of offices
    小题3:What does the underlined part “To do this” refer to in Para3?
    A．To build houses and offices
    B．To limit the air flow inside
    C．To use man-made materials
    D．In order not to waste energy
    小题4:The reason why we should use different kinds of plants to clean the air is that ___.
    A．plants can drive out all kinds of pollutants indoors
    B．plants can absorb different harmful indoor chemical
    C．plants can take in all pollutants inside and outside
    D．plants may give out more oxygen than people need

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Now let us look at how we read. When we read a printed text, our eyes move across a page in short, jerky （急动的）movement. We recognize words usually when our eyes are still when they fixate. Each time they fixate, we see a group of words. This is known as the recognition span(范围)or the visual span. The length of time of which the eyes stop ---the duration of the fixation (定位)----varies considerably from person to person. It also varies within any one person according to his purpose in reading and his familiarity with the text. Furthermore, it can be affected by such factors as lighting and tiredness.
    　　Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page. As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation. For instance, in some exercises, words are flashed on to a screen for, say, a tenth or a twentieth of a second. One of the exercises has required students to fix their eyes on some central point, taking in the words on either side. Such word patterns are often constructed in the shape of rather steep pyramids so the reader takes in more and more words at each successive (连续的) fixation. All these exercises are very clever, but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently. Reading requires the ability to understand the relationship between words. Consequently (因此), for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated (孤立的) words and phrases would seem unlikely to help him in reading a continuous text.
    小题1:The time of the recognition span can be affected by the following facts except ________ .
    A．one’s familiarity with the text
    B．one’s purpose in reading
    C．the length of a group of words
    D．lighting and tiredness
    小题2:The author may believe that reading ______.
    A．requires a reader to take in more words at each fixation
    B．requires a reader to see words more quickly
    C．demands an deeply-participating mind
    D．demands more mind than eyes
    小题3:What does the author mean by saying “but it’s one thing to improve a person’s ability to see words and quite another thing to improve his ability to read a text efficiently.” in the second paragraph?
    A．The ability to see words is not needed when an efficient reading is conducted.
    B．The reading exercises mentioned can’t help to improve both the ability to see and to comprehend words.
    C．The reading exercises mentioned can’t help to improve an efficient reading.
    D．The reading exercises mentioned has done a great job to improve one’s ability to see words.
    小题4:Which of the following is NOT true?
    A．The visual span is a word or a group of words we see each time.
    B．Many experts began to question the efficiency of eye training.
    C．The emphasis on the purely visual aspects is misleading.
    D．The eye training will help readers in reading a continuous text.
    小题5:The tune of the author in writing this article is ________
    A．critical (批评的)B．neutral (中立的)
    C． pessimistic （悲观的 ）D．optimistic

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Let children learn to judge their own. A child who learns to talk does not learn by being corrected all the time; if corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Little by little, he makes the necessary changes to make his language like other people’s, in the same way, children learn to do all the other things without being taught—to walk, run, climb, ride a bicycle—compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not. If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time in doing such work? Our job should be to help the child when he tells us that he can’t find the way to get their own understanding, how to know what they know or do not know.   
    小题1:According to the passage, the best way for children to learn things is ___  
    A．to listen to skilled people’s advice
    B．to ask older people many questions
    C．to make mistakes and have them corrected
    D．to do what other people do
    小题2:According to the writer, teachers in school should ___
    A．allow children to learn from each other
    B．point out children’s mistakes whenever they are found
    C．correct children’s mistakes as possible as they can
    D．give children more book knowledge
    小题3:Which of the following does the writer think teachers should not do?
    A．Give children correct answers
    B．allow children to make mistakes
    C．Point out children’s mistakes
    D．Let children judge their own work
    小题4:The passage suggests that learning to speak and learning to ride a bicycle are ___.
    A．different from learning other skills
    B．the same as learning other skills
    C．more important than other skills
    D．not really important skills

    查看答案和解析>>

    同步练习册答案