题目内容
13．______ English book is in ______ classroom．（ ）| A． | A，a | B． | An，/ | C． | An，the | D． | The，/ |
分析 一本英语书在教室里．
解答 答案：C．考查冠词．句意"一本英语书在教室里"．第一个空，泛指一本英语书，English是以元音音素/i/开头的，用an修饰．第二个空，特指在教室里，用the．答案是C．
点评 考查冠词，冠词包括定冠词the，通常表示特指．不定冠词a和an，a修饰以辅音音素开头的单词，an修饰以元音音素开头的单词．要根据语境完成试题．
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first self-balancing individual transport vehicle for short distance travel．
The Segway looks like a large stick with two wheels．The wheels art （76）Bto a platform（站板）．The stick has handles for a person to hold．The person stands on the platform and holds the handles．The transporter moves forward or backward when the person moves his or her body in that（77）A．The driver turns the handles to go left or right．Computers and certain devices on the Segway make the vehicle move and balance．It powered by batteries that are recharged （充电） with electric power．It can travel at a speed of 19kilometers an hour．'
Dean Karen，the inventor of the Segway says it was meant to reduce pollution and solve other environmental problems in cites．A Segway costs about five thousand dollars．People who have bought Segways say they are（78）Cuseful though quite costly （昂贵的）•But they can use the Segways instead of their cars for short 1trips，and it is a great way to save money on gasoline（汽油）．The Segway also makes it（79）Cfor people who have trouble walking because of medical problems to move around．
Segways are being used in more than twelve American airports．Security officers say they are able to move quickly on the devices in emergency situations．People on vacation are also learning to use Segways．Segway tours are popular in several American cities including Chicago，San Francisco and Washington D．C．Tour company officials say it takes from ten to thirty minutes to teach people how to（80）Ba Segway．Then the group uses them to move around the city．
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