IntheUnitedStates，traintransportationisunpopularcomparedwithcarsandairplanes．Mostpeopleliketravelingbycarorbyair．OfficialsoftheUnitedStatesDepartmentofTransportationmadeastudyin2001．Thestudyisabouthowmanym

Question

In the United States，train transportation is unpopular compared with cars and airplanes．Most people like traveling by car or by air．Officials of the United States Department of Transportation made a study in 2001．The study is about how many miles Americans traveled by different means of transportation．They only studied trips longer than 50 miles．The study showed that fifty-six percent of all miles were traveled in personal vehicle．Forty-one percent were traveled in an airplane．Two percent were traveled in a bus．And less than one percent of miles were traveled in a train．Amtrak is the national provider of train transportation in the United States．In the past ten years，the number of its passengers has increased by eighteen percent．Although the number of passengers has increased，it is still very small now．In countries such as France，Germany，or Japan，more people use trains．There are several reasons why many people ________________________．
Firstly，Americans love to drive their own cars．On highways，cars can travel as fast as trains．These highways connect all major cities in America．Secondly，many travelers like to be independent．When they use their own cars they can decide when to travel．Thirdly，many buses travel between major cities．Bus travel is less costly than train travel．In a huge country like the United States，cities are far away from each other．In some cases，travel from one city to another by train may take more than a day．Airplanes can carry passengers over long distances much faster．People who do not want to spend long time traveling by train decide to fly．For these people saving time is the most important thing．
76．What is the best title of the passage？（Please answer within 8 words）
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77．What does the underlined word"it"refer to？（ Please answer within 4 words）
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78．Fill in the blank with proper words．（ Please answer within 6 words）
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79．Complete the following statement according to paragraph 2．（ Please answer within 6 words）
When they use their own cars they are___
80．Why American people have to travel a long time if they go from one city to another？（Please answer within 10 words）
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Answer 1

76 Train transportation in the USA is less popular．
77 The number of passengers．
78  don't like to travel by train
79  free to decide the departure time
80  Because cities in America are far away from each other．

76 Train transportation in the USA is less popular．主旨大意题．文章属于总分式结构，对于写标题的题目需要在总的结构段落中进行寻找．从第一段In the United States，train transportation is unpopular compared with cars and airplanes．可知，文章主要讲的是美国的火车运输业不是很受欢迎．故答案可为Train transportation in the USA is less popular．
77 The number of passengers．猜测词义题． 根据第一段Although the number of passengers has increased讲到了尽管乘客数量有所增加，但是仍是相当少的数量．故it指代乘客的数量The number of passengers．
78  don't like to travel by train 细节题．下文提到了美国人不喜欢火车旅行的三点理由，所以此处应填为什么很多人不喜欢乘火车旅行的原因．即don't like to travel by train
79  free to decide the departure time 细节题．根据第二段When they use their own cars they can decide when to travel．可知之所以喜欢自己开车的原因是可以自由决定何时开始旅行，即可以自行决定何时出发．即free to decide the departure time．
80  Because cities in America are far away from each other．细节题．根据第二段In a huge country like the United States，cities are far away from each other．可知，之所以要花费很多时间的原因是由于两个城市距离太远．即Because cities in America are far away from each other．