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    17．Travel is exciting and summer is a busy period for holiday travel．Many people will travel great distances in airplanes，cars or other vehicles．Experts say people should know about other health problems that can strike when traveling by air．
    One of these is a condition called hypoxia （缺氧症）．It results from a lack of oxygen to the brain．Experts say the body begins losing oxygen minutes after an airplane leaves the ground．The air pressure in a plane during flight is lower than at sea level．This makes it more difficult for the body to effectively use the same amount of oxygen as it would on the ground．Fewer oxygen molecules （分子） cross the tissues （组织） in the lungs and reach the bloodstream．
    The result is a five to twenty percent drop in the amount of oxygen in the blood．This reduces the amount of oxygen that reaches the organs of the body．
    One effect of this lack of oxygen to the brain is a headache．When this happens，the heart attempts to fix the situation by beating harder and faster．This can make the traveler feel tired．
    These signs of hypoxia are not dangerous in a healthy person．But a drop in oxygen level can cause a health emergency in people with heart or lung problems．They might lose consciousness or even suffer a heart attack．
    Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body's ability to use oxygen．So they suggest that people not drink alcohol or smoke cigarettes either before or during a flight．They also say persons with heart or lung problems should seek advice from their doctors before flying．
    63．The author writes the passage mainly toC．
    A．warn people in airplanes of possible dangers
    B．offer some advice on avoiding health problems
    C．explain the causes and effects of hypoxia
    D．advise people not to smoke or drink alcohol
    64．According to the passage，what leads to hypoxia？A
    A．The brain lacks enough oxygen．
    B．The air pressure in a plane is too high．
    C．Our body needs less oxygen during takeoff．
    D．The bloodstream contains no oxygen molecules．
    65．The underlined part"fix the situation"means"D"．
    A．use more oxygen it needs            
    B．increase the air pressure
    C．reduce the amount of blood          
    D．bump more blood to the brain
    66．Why should passengers not smoke or drink before flying？A
    A．They weaken the body's ability to use oxygen．
    B．Smoking may pollute the air inside the airplane．
    C．Drinking alcohol may raise one's blood pressure．
    D．Drinking is forbidden at the airport．

    分析 文章讲述的是关于坐飞机旅行时会出现的缺氧症的原因和造成的后果．

    解答 CADA
    63：C 推理判断题，根据第一段的Experts say people should know about other health problems that can strike when traveling by air可知，文章是向读者解释缺氧症的原因和后果．
    64：A 事实细节题，根据第二段It results from a lack of oxygen to the brain可知，是由于大脑缺氧导致
    65：D 推理判断题，根据第三段内容可知，解决这种情况指的是给大脑提供更多的血液．
    66：A 事实细节题，根据最后一段Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body's ability to use oxygen可知，

    点评 做阅读时经常犯错的主要原因是，仅凭读过文章后残留在脑海中的一丝印象来勾选答案，这样便很容易掉入出题人故意设布下的题目陷阱．所谓阅读理解，对于题目的理解一定要忠实于原文，因此，每一道题都应该与原文作全面的对比与核查，再得出答案．也就是说，阅读理解的每一道题目，在原文都应该有明确的出处，我们把这一出处叫做原文相关句，（1）排除与原文相关句主题不一致的选项（2）排除与原文相关句态度相反的选项  （3）排除用于过于极端或负面的选项（4）注意结合文章主旨和主题去排除．

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    C．is often too busy to feed his dog
    D．doesn't like to feed Tody by hand
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    A．He doesn't want Toby to get too fat．
    B．He fears the machine will run out of food．
    C．He wants hid friends to stop feeding Toby．
    D．He doesn't want Toby to be woken up at night．
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    A．sits beneath his feeder all day long
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    C．doesn't know what happens to the feeder
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    b．A message is sent to@feedtoby．
    c．The mini-computer gets the message．
    d．The digital camera takes a photo of Toby and sends it to Nat．
    e．The motor starts to work and opens the door to release dog food．
    A．a，b，c，e，d       B．b，c，e，a，d       
    C．b，c，a，e，d       D．c，b，a，d，e
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    A．Technology     B．Health   
    C．Environment    D．Style．

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    科目：高中英语 来源： 题型：阅读理解

    9．Have you eaten too much over the holidays？You should try fidgetingfor a while．Those around you might not like it，but scratching （moving your nails against a part of your body） and twitching （moving suddenly and quickly when you don't want to） is an important way of burning up calories．
     American researchers have found that some people's squirming （continuously turn your body when nervous） and wigging （move in small movements，especially from side to side） equals several miles of slow running each day．
     The scientists，based at the National Institute of Health's laboratory in Phenix，Arizona，are studying why some people get fat and other stay slim．
      In one study 177 people each spent 24 hours in a room in the institute where the amount of energy is measured by their oxygen and carbon dioxide levels．By the end of the day，some people had burned up 800 calories in toe-tapping，（moving the front part of your foot up and down） finger-drumming （hitting your fingers continuously and lightly against something hard） and other nervous habits．However，others had burned up only 100 calories．
      The researchers found that slim women fidget more than fat women，but there was no significant difference in men．Heavy people burn up more energy when they fidget than thin people do．
    31．Which of the following can be used to explain the meaning of"fidgeting"？D
    A．scratching and twitching            
    B．squirming and wigging
    C．slow running                         
    D．moving one's body nervously
    32．According to the scientists，the reason why some people get fat and other people stay slim is thatC
    A．thin people burn up less calories than fat people
    B．fat people burn up more calories than thin people
    C．those who burn up more calories than others will be thinner
    D．those who fidget more than others will be thinner
    33．Scientists found in the experiment thatA．
    A．the energy burned up by fat people when they fidget was more than that burned up by thin people
    when they fidget
    B．some people's fidgeting burned up more than 800 calories，but some people's fidgeting burned up less
    than 100 calories
    C．slim women fidget more than fat women but fat men fidget more than thin men
    D．thin men fidget more than fat men
    34．If someone is thin in a pleasant way，we say they areC．
    A．skinny        B．bony      C．slim            D．underweight
    35．Scientists think a fidget habit to beA．
    A．a way to lose fat                     
    B．a nervous habit annoying the people around
    C．a better exercise than slow running     
    D．a habit of thin people．

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    科目：高中英语 来源： 题型：阅读理解

    6．It is well known that the building development company Cityspace wants to knock down the existing seafront sports club in Layton and replace it with a leisure centre that will consist of a multiscreen cinema，restaurants and an entertainment centre．But a local action group has promised to fight the?30million redevelopment of the sports club，which has provided family facilities for over 25years．
    The action group was set up three weeks after the project was announced．Members of the group argue that the new centre will be too big and will totally change the way the town looks．They also dislike the removal of sports facilities from the centre and the change to less healthy activities such as video games and films．Apart from the size of the project，they say that the 550parking spaces provided will be too few and parking will become more difficult as a result．
    Local hotel owners have welcomed the project，but action group says that in general it will only have a bad effect on the neighborhood．According to one group member it will result in up to 4000people being around Layton seafront late at night．"A lot of old people and families live nearby，"he explained．A meeting is being held tonight to discuss the plans．
    38．What is the writer trying to do in the article？C
    A．Show why the new leisure centre is needed．
    B．Give her own opinion about the new leisure centre．
    C．Describe the arguments against the new leisure centre．
    D．Suggest where the new leisure centre should be built．
    39．What does the action group think about the new leisure centre？A
    A．It will not be right for the area．B．It will cost too much to build．
    C．It will not attract enough people．D．It will provide little entertainment．
    40．Which group of people is keen on having the new leisure centre？A
    A．People working in the hotel．
    B．People who do a lot of sport．
    C．People who come into Layton by car．
    D．People living near the seafront．
    41．What would be a good headline for the article？D
    A．Action Group Changes its Mind
    B．Good News for Cityspace
    C．Seafront Invaded by Crowds Again
    D．Leisure Plans Under Attack．

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    科目：高中英语 来源： 题型：阅读理解

    7．In American schools there is something called Homecoming Day．Many high schools and colleges with a football team have a homecoming game．This can be the most important event of the year，except for graduation．Students plan it for many weeks in advance．
    Several days before Homecoming，students begin to decorate（装饰） the school．There are signs to wish luck to the team and many other signs to welcome back the graduates from other years．Many people still come to Homecoming twenty or thirty years after they graduate．
    The members of school clubs sell delicious foods and fruits，such as apples and sandwiches．Some clubs even help to welcome visitors．
    During the day people like to look for teachers that they remember from long ago．Often they see old friends and they talk together about those happy years in school．
    Everyone soon comes to watch the football game．When the game is half over，the band（乐队）comes onto the field and plays school songs．Another important moment is when the Homecoming Queen appears．All the students vote（投票）a most popular student Homecoming Queen or King．It is a great honor to be chosen as the Homecoming Queen or King．
    Homecoming is a happy day，but it is not perfect unless the football wins the game．Even if the team loses，the students still enjoy Homecoming．Some stay at the school to dance，and others go to a party．For everyone it is a day to remember for a long，long time．

    41．Where do people spend Homecoming Day？C
    A．At home．            B．At restaurant．    
    C．At the school．      D．At a stadium．
    42．What doesn't happen during Homecoming Day？D
    A．Having a football game．      B．Welcoming back the graduates．
    C．Choosing Homecoming Queen．   D．Listening to a concert．
    43．Students start to plan HomecomingA
    A．many weeks before the day            B．several days before it
    C．on the early morning of the day      D．the day before the event
    44．During the football game，students vote toC
    A．choose the most popular footballer
    B．choose a student as the captain of the football team
    C．choose the Homecoming Queen or King
    D．choose a student to judge the football game
    45．We can infer from the text thatB
    A．Homecoming is more important than graduation
    B．students take lots of time to get ready for homecoming
    C．many parents attend the homecoming party
    D．students will graduate after the homecoming day．

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