练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air,water and sunlight. Animals and man cannot make food from air,water and sunlight. Animals get their food by eating plants and other animals.Therefore animals and man need plants in order to live.This is why we find that there are so many plants around us.
    If you look carefully at the plants around you,you will find that there are two kinds of plants:flowering plants and non-flowering plants.
    Flowering plants can make seeds（种子）. The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit. Most non-flowering plants do not grow from seeds. They grow from spores（胚芽）. Spores are very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as seeds. When these spores are all on wet and shady places, they usually grow into new plants.
    72. The main idea of the first paragraph is that ______.
    A. plants are important for life             B. plants cannot grow without air
    C. there are many plants in the world      D. we can not live without water
    73. Plants can make food from______.
    A. flower, water and air                                        B. water, sunlight and air
    C. air, water and soil                                                       D. air, sun and light
    74. What can we infer from the passage ？
    A. Of all living things animals are most important 
    B.Spores are seeds
    C. All fruits of flowering plants have seeds  
    D.Without plants, man will die out
    75. This passage may be taken from______.
    A. a medicine book                      B. a novel
    C. a science magazine                   D. an experiment report
    72-75 A B D C
    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

    Are your table manners much better when you are eating at a friend’s home or in a restaurant than they are at your own home? Probably so, __1__ you are aware that people judge you by your table manners. You take special pains when you are eating __2__. Have you ever stopped to realize how much less self-conscious you would be on such occasions if __3__ table manners had become a habit for you? You can make them a habit by __4__ good table manners at home.
    Good manners at mealtimes help you and those around you to feel __5__. This is true at home as much as it is true in someone else’s home or in a restaurant. Good __6__ make meals more enjoyable for everyone at the table.
    By this time you probably know quite well what good table manners are. You __7__ that keeping your arms on the table, talking with your __8__ full, and wolfing down your food are not considered good manners. You know also that if you are mannerly, you say “Please” and “Thank you” and ask for things to be passed to you.
    Have you ever thought of a pleasant attitude as being __9__ to good table manners? Not only are pleasant mealtimes enjoyable, but they aid digestion. The dinner table is a __10__ for enjoyable conversation. It should never become a battleground. You are definitely growing in social maturity (成熟) when you try to be an agreeable table companion. 
    小题1:
    A．becauseB．butC．unlessD．though
    小题2:
    A．in publicB．at homeC．at easeD．in a hurry
    小题3:
    A．suchB．noC．someD．good
    小题4:
    A．actingB．enjoyingC．practicingD．watching
    小题5:
    A．comfortableB．stressedC．depressedD．outstanding
    小题6:
    A．dishesB．mannersC．atmospheresD．friends
    小题7:
    A．mentionB．preferC．doubtD．realize
    小题8:
    A．stomachB．handsC．mouthD．bowl
    小题9:
    A．essentialB．considerateC．obviousD．unusual
    小题10:
    A．timeB．placeC．chanceD．way

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解


    It was 3:21 a.m. when nine?year?old Glenn Kreamer awoke to the smell of burning. Except for the cracking(爆裂声) of flames somewhere below there was not a sound in the two?storey house at Baldwin, Long Island.
    With his father away on night duty at a local factory, Glenn was worried about the safety of his mother, his sister Karen, 14 and his 12-year-old brother Todd. He ran downstairs through the smoke?filled house to push and pull at Karen and Todd until they sat up. Then he helped each one through the house to the safety of the garden. There, his sister and brother, taking short and quick breaths and coughing, collapsed on the lawn.
    The nine-year-old boy raced back into the house and upstairs to his mother's room. He found it impossible to wake her up. Mrs Kreamer, a victim of the smoke, was unconscious, and there was nobody to help Glenn carry her to the garden. But the boy remained calm and, as a fireman said later,“acted with all the self?control of a trained adult.”
    On the bedroom telephone, luckily still working, Glenn called his father and, leaving Mr Kreamer to telephone the fire brigade and ambulance service, got on with the task of saving his mother.
    First he filled a bucket with water from the bathroom and threw water over his mother and her bed. Then, with a wet cloth around his head he went back to the garden.
    He could hear the fire engine coming up, but how would the firemen find his mother in the smoke?filled house where flames had almost swallowed up the ground floor?
    Grasping firmly a ball of string from the garage, Glenn raced back into the
    house and dashed upstairs to his mother's room. Tying one end of the string to her hand he ran back, laying out the string as he went, through the hall and back out into the garden.
    Minutes later he was telling fire chief John Coughlan:“The string will lead
    you to Mother.” Mrs Kreamer was carried to safety as the flames were breaking through her bedroom floor.
    1.Why did Glenn run downstairs first?
    A. He wanted to find out what was happening.
    B. He was worried about his mother's safety.
    C. He wanted to save his sister and his brother.
    D. He went to see if his father had come back from work. 
    2. How did Glenn help the firemen to save his mother?
    A. By throwing water all over her and her bed.
    B. By carrying her to safety with his brother.
    C. By pushing and pulling at her.
    D. By tying a string to her hand. 
    3. Who called the fire brigade and ambulance service?
    A. Glenn.       B. Glenn's father.       C. Glenn's sister.    D. Glenn's neighbor. 
    4.What did Glenn do to protect himself?
    A. He put a wet cloth around himself.   B. He threw water all over his head.
    C. He hid himself in the bathroom.      D. He rushed out to the lawn. 
    5. Glenn saved his family because ________ .
    A. his father had taught him to do so on the phone
    B. he had learned something about the first aid
    C. he had dealt with the emergency calmly and wisely
    D. he had followed his mother's instruction 

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：完形填空

    Section A (10 points)                                                     
    Directions: Read the following passage. Complete the diagram by using the information from the passage. WRITE NO MORE THAN 3 WORDS for each answer.
    Many students eat their breakfasts on the way to school or in the dinning-room. But some of them don’t really know how to eat well when eating out.
    Here is some important advice. The first is to eat less fast food. The most obvious harm of eating too much fast food is weight gaining because of too much fat. Young people and adults are at risk of diseases related to weight.
    Too much fast food can drag your body down. French fries, for example, were recently found to contain much more acryl amide(丙烯酰胺) than other food. This may cause cancer. Actually, deep fried food all contains acryl amide. So don’t eat it too often.
    Soda is another thing you should watch out for. Cokes and other sodas contain a lot of sugar and can slow down a person’s calcium absorption, so it’s best to drink as little soda as possible.
    Food in the dinning-room may not be as tasty as fast food, but it’s actually easier to make healthy choices. Human bodies need variety. You can have a meal that balances lean proteins, vitamins and complex carbohydrates(碳水化合物). In other words, a meal with fish or meat, vegetables and some bread or rice will provide you with most nutrients that the body needs.
    Some snacks, on the other hand, will help keep you going until your next big meal. It is natural for teenagers, especially boys, to feel hungry during school time. Don’t forget to take some foods, like whole-grain biscuits or low-fat milk in your school bag.
    Title: 71__________
    Advice
    		Food
    		72.__________
    		73.__________
    		Kind
     
    Eat less fast food
    		French fries and other 74__________
    		75.__________
    		Cause weight gaining
    		Unhealthy food
    Acryl amide
    		76.__________
    77._________
    		Sodas
    		Lots of sugar
    		Slow down 78__________
    		Unhealthy food
    Eat in dinning-room
    		Fish or meat, vegetables and some bread or rice
    		Lean proteins, vitamins and complex carbohydrates
    		Provide most nutrients that the body needs
    		79._______
    80. __________
    		Whole-grain biscuits or low-fat milk
    		Not mentioned
    		Keep you going until next big meal
    		Healthy food
     

    查看答案和解析>>

    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1分，满分20分）
    A while ago my family and I went sledding(滑雪橇) and as I watched my children climbing up the slope I started thinking.
    Many people are convinced that most of today’s   26   problems are because of the “me” generation. Youngsters are just out for themselves and pay no   27   to others or their needs. Indeed, a common belief is that today’s youngsters won’t do anything  28   there is something in it for them.
    Yet, while sledding, I saw a   29  side. I watched my two oldest children (then five and four) take my youngest(then two years old)by the hand to help her up the slippery slope  30   they went up. They would have been   31  without her, but not once did they try to sneak （溜掉）by her without helping. And when the sled  32  my two daughters was aimed toward the edge, it was my five year old son who ran to them to  33  them from falling and hurting themselves.
    These children sometimes   34  among themselves and, on occasion, behave horribly. But I can  35  them shopping and know that they won’t ask for anything, I can talk to them about tsunami or hurricane victims and know that they will offer to  36  some of their own money to the cause, and I can ask them to play with those children  37  on the sideline(作为旁观者) and know that they will befriend（照顾）them.
    Perhaps, therefore, the “me” generation is to blame  38   much of society’s problems—not the youngsters who want everything,   39  the adults who have taught them to selfishly  40   only of themselves.
    Most adults have been   41  at some time or another, sadly, many   42  that disappointment down to their children. Then the children learn to put themselves first!
    Most young children want to help. We can  43  that feeling by teaching the lesson my children learned while sledding: Life is a slippery slope with  44  of bumps(撞伤) and bruises(擦伤), but we can all make it to the  45  if we remember to help those who need it.
    26.A.social         B.private                   C.serious                    D.slight
    27.A.thought            B.attention                         C.permission             D.pleasure
    28.A.if                                  B.as                             C.while                                 D.unless
    29.A.same                          B.different                          C.strange                            D.moral
    30.A.some time                 B.any time                          C.each time                        D.the time
    31.A.faster                         B.slower                     C.easier                               D.lighter
    32.A.containing                 B.loading                    C.driving              D.carrying
    33.A.avoid                           B.stop                                  C.help                                   D.warn
    34.A.cry                               B.cooperate                       C.assist                                D.fight
    35.A.take                      B.drive                                 C.accompany            D.guide
    36.A.lend                   B.send                                  C.collect                     D.pay
    37.A.forgotten                   B.missed                    C.left                                    D.ignored
    38.A.of                                 B.within                               C.on                             D.for
    39.A.and                    B.but                                    C.thus                                  D.though
    40.A.consider           B.speak                                C.believe                    D.think
    41.A.depressed                 B.surprised                         C.disappointed                  D.embarrassed
    42.A.extend                        B.intend                       C.pass                                  D.spread
    43.A.encourage                 B.strengthen                      C.discourage                     D.approach
    44.A.opportunities  B.occasions                  C.promises                         D.fates
    45.A.top                     B.bottom                   C.middle                     D.tip

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

        As bananas ripen， the green skin turns ye11ow gradually. Chemical changes occur in the f1esh of the fruit as well：starch（淀粉）changes to sugar；pectin（果胶）breaks down，losing its stiffness； and the f1esh softens.
    Is ripening fruit a self－contained system， or is the rate of these changes affected by the environment？ We designed the experiment below to see if different atmospheres， produced by different packaging， affected the rate of ripening. You will vary the atmosphere surrounding unripe bananas and observe the effect on the ripening process。
    Now set up the bananas in their environments as follows：
    1. Put two green bananas in a paper bag and fo1d the top over to seal out the air.
    2．Put one green banana and the very ripe banana in the other paper bag and fold over the top.
    3. Put two green bananas in a plastic bag and seal it.
    4. Wrap（包）one green banana tightly in a plastic bag.
    5. Leave one green banana exposed to the air.
    Leave the fruit a1one or five days to ripen. Ripening fruit“breathes”． This means that it takes up oxygen and gives off C02. Oxygen is extremely important and necessary for the chemical reactions involved in ripening. In addition, ripening fruit gives off another gas, called ethylene（乙烯）. Not only is ethylene a product of ripening fruit, it also promotes the further ripening of the fruit.
    Paper bags tend to keep the ethylene in, but they allow oxygen and ethylene to pass through slowly. Plastic bags do not allow the free flow of oxygen or ethylene. In this experiment, the green banana in paper bag with the ripe banana should ripen most quickly. The green bananas in the paper bag should ripen faster than the bananas in the plastic bag. The banana left exposed to air has an unlimited supply of oxygen, so it will turn brown most quickly. You will notice that the side of this banana that rests on the counter will ripen more quickly than the other sides, because it has the
    closest contact（接触）with its own ethylene. The banana that is tightly wrapped in plastic has no oxygen supply and should ripen most slowly. Now can you see why bananas are sealed in plastic in many supermarkets？
    72. What makes the green banana in Bag 2 ripen more quickly than the ones in Bag 1？
    A. Ethylene from the very ripe banana.            B. The free flow of oxygen or ethylene
    C. C02 from the very ripe banana.                     D. The limitation of oxygen supply.
    73. How can we slow down the ripening of bananas exposed to the air？
    A. To rest them on the counter.                                   B. To keep them in the basket.
    C. To put them on the ground.                                     D. To hang them up from the ceiling
    74. It can be concluded from the passage that          .
    A. the ripening banana is a self-contained system
    B. the rate of ripening bananas is affected by the environment
    C. wrapped bananas experience no chemical changes to ripen
    D. ripening bananas give off oxygen, C0, and ethylene
    75. Why are bananas sealed in plastic in many supermarkets？
    A. To make them ripen more quickly.                B. To make them ripen more slowly.
    C. To make banana flesh soften.                        D. To turn green bananas yellow.

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

      Driving while talking on a hand-held mobile phone has long been considered a danger. But even drivers who use hands free devices are a nuisance – because they are slowing everyone else down, according to a study.
    David Strayer, a psychology professor in Utah University’s traffic lab, conducted a study involving 36 university students driving on motorways. Each used a hands free phone for half the trip but not for the other half. The students were told to obey posted speed limits and use turn signals but the rest of the driving decisions were up to them . What Strayer found is that when the drivers were distracted（使分心）by a phone conversation , they made fewer lane（车道） changes, drove slower and took longer to get where they were going. Fellow researcher Professor Peter Martin, who teaches civil and environmental engineering at Utat University, said,“Ordinarily a slower driver should be safer ， but that’s not the case when people are talking on a cell phone.”
    In general , drivers who used mobile phones while driving took three percent longer to drive along the same high-density route than drivers who didn’t. When stuck behind a dawdling(磨蹭的) driver , it took them between 25 and 50 seconds longer to switch to an open lane to overtake. Those delays can add up when you consider studies that suggest as many as 10 percent of US drivers are using a cell phone at any one time. And delays in traffic streams of very small amounts can grow into massively when drivers are crossing a  highway.” Our next step is to use computer models to determine just how much those delays are costing drivers in time and in extra fuel costs,” Martrin said.
    63. What does the underlined word in the first paragraph mean?
    A. A person who is a volunteer.         B. A person who breaks the traffic law
    C. A person who is annoyed by others.   D. A person who causes trouble
    64. Which of the following is TRUE , according to Martin?
    A. The more slowly a person drove, the safer he was.
    B. Measures should be taken to stop using mobile phones.
    C. Drivers using hand-held phones had less effect on traffic than those using hands free phones
    D. Driving while using mobile phones could cost drivers time and money.
    65. The passage is mainly about      .
    A. traffic conditions in rush hours 
    B. the use of mobile phones in the USA
    C. using hands free devices behind the wheel
    D. a comparison between hand-held phones and hands free ones

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Critics of cloning often repeat the question related to the controversial(有争议的) science “Just because we can, does it mean we should?”  The closer we come to being able to clone a human, the hotter the debate over it grows. For all the good things cloning may achieve, opponents say that it will do just as much harm. Another question is how to governing cloning process.
    There is federal official law banning cloning in the United States, but several states have passed their own laws to ban the practice. The US Food and Drugs Administration(FDA), has also said that anyone in the United States attempting human cloning must first get its permission. In Japan, human cloning is a crime that is punished by up to 10 years in prison.
    While laws are to ban cloning at this time, some scientists believe that the technology is not ready to be tested on humans. Ian Wilmut, one of the co-creators of Dolly, has even said that human cloning projects would be an irresponsible crime. Cloning technology is still in its early stages, and nearly 98% percent of cloning efforts end in failure. The embryos are either not suitable for implanting into the uterus(子宫) or they die shortly after birth.
    The clones that do survive end up suffering from deadly or problematic genetic abnormalities(畸形). Some clones have been born with faulty heart, lung problems and blood vessel problems. One of the most famous cases was a cloned sheep that was born with but malformed arteries(畸形动脉) leading to the lungs.
    Opponents of cloning will point out that we can enthanize(安乐死) these faulty clones of other animals, but they ask what if a human clone is born with these same problems. Advocates of cloning respond that it is now easier to pick out faulty embryos even before they are implanted into the mother. The debate over human cloning is just beginning, but as science advances, it could be the biggest moral dilemma of the 21st century.
    68. Which word in the text is the opposite of the underlined word “opponents”?
    A. critics        B. advocates          C. scientists           D. co-creators
    69. The writer writes this passage mainly to ________________.
    A. support passing laws to ban human cloning
    B. list problems with human cloning
    C. introduce critics’ ideas about human cloning
    D. state the debate over human cloning
    70. Which of the following will Ian Wilmut probably NOT agree with?
    A. Cloning technology is in its early stages.
    B. Human cloning should be made illegal.
    C. Very few cloning efforts are successful.
    D. Cloning technology is ready to be tested on humans

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：阅读理解

    Many parents find that their children act very mean to their friends．They wonder what they can do about this behavior without squashing their spirit．Here is what parenting experts explain and suggest：
    Pre-schoolers have no idea how others feel．They are in the process of understanding their own feelings and have not yet developed “emotional intelligence”．Children of this age also do things just because it can make them feel powerful when they are able to make others respond．
    Here are some things you can do to reduce the mean talk：When the child’s in a good mood, look her in the eyes and lovingly tell her how you feel when she speaks in a mean way to another child．Have a look of disappointment on your face and role-play with her to show her the behavior you would like to see．Then, every time you see her demonstrating the “nice” interaction with others, stop what you’re doing, give her eye contact and make a big deal out of it．Young children need to know what good behavior looks like with regular encouragement．When you catch her being mean to a child, get down on your knees next to her, and, with your arm around her, face the child that is receiving her meanness, and apologize to the child for both of you, then walk away．As soon as the other child is away, let your daughter know how disappointed you are in her behavior and quickly let it go．
    Parents should set up a consequence when this negative behavior occurs．You can give these other ideas a try first．If you’re not seeing any results after a few times, then go ahead and set up the consequence (such as not being able to play with that child)．Avoid using “time out” because it doesn’t work．It gives the child too much power and too much attention．The most effective consequences are those that are directly tied to the behavior．If she is being mean to children, then the play session ends．And most importantly, set up this consequence in advance when the negative behavior is NOT occurring．
    If you should catch her being a “bully” to another child, and she has somehow hurt him or her, immediately put all your attention on the victim, not her．Don’t scold or punish your daughter．Softly, gently, and immediately, nurture the hurt child and get your daughter to assist you in the nurturing．When things have calmed down, let her know face to face how disappointed you are in her behavior, not her as a child．
    68．When a child talks mean to his friend, the best way to correct it is to ________．
    A．tell him directly that it is a wrong doing             B．demonstrate what a good behavior is
    C．make him apologize to his friend                         D．ask his friend not to play with him any more
    69．The underlined phrase “make a big deal out of it” in paragraph 3 probably means ________．
    A．show some disappointment                                  B．say a few words of praise
    C．exchange gifts with the child                                D．present a surprised look
    70．When dealing with a child’s mean action, you shouldn’t _______．
    A．punish her in the presence of her friend            B．put on a disappointed look on your face
    C．tell her that you are unhappy to see that          D．nurture the hurt child immediately
    71．The passage is mainly about how to _______．
    A．bring up children                                                       B．solve pre-school children’s problems
    C．help children make friends                                     D．guide children when bad behaviors occur

    查看答案和解析>>

    同步练习册答案