7．There are many differences between America and China．The biggest difference is traffic rules．In America there are too much more cars than in China．But there are much fewer traffic jams and accidents in America than in China．We hardly see traffic police in the street，but all cars obey strictly traffic rules，and people hardly find that a car does not obey traffic rules in the street．
About American traffic rules，there are many better terms，such as：
1．Stop line：There are stop lines in all crossing without traffic light （some have two stop lines and others have four stop lines）．All cars must stop while meeting the stop line．
2．Traffic light：There is traffic light in the crossing of the road．Cars may almost turn every direction．The traffic light can give signal step by step including uturn．There is a kind of middle lane of turning left．When a car wants to turn left in the road，he may enter into the middle lane of turning left and give a signal of turning left．When he thinks being safe，he may turn left．In many conditions the order of passing is also given very specifically．If people want to change lane or turn，they must look behind and think being safe．Only so，they may do it．
3．Specific item：Such as parking，there are three kinds of lines （their colors are white，blue or red） in the roadside．Every line may park different kinds of car．There are many streets in some residential areas，and there is a kind of rule that any car cannot park at any time or any period time．In every parking，there are some special positions for invalid people．
4．About the priority of passenger and car：At any case，passenger has the priority to car．And only after passenger have passed the road and gotten the top of sidestep，car may go ahead．
In general，traffic rules of America are very specific，convenient，safe and humanizing．
51．Which of the following is NOT the reason why we can hardly see traffic police in the street in American？C
A．Traffic police are not very necessary because few cars break traffic rules．
B．The traffic is very clear and there are few traffic jams and accidents in the street．
C．There are so many cars in the street that the traffic police can't be seen．
D．The effective traffic rules play an important part in the road safety．
52．Why is there middle lane of turning left on the road？A
A．It is designed for the cars that want to turn left．
B．It is very safe to drive there．
C．It is very convenient for the traffic police to find the cars that break the rules．
D．The cars that want to turn left can easily give a signal of turning left．
53．Which of the following statements is TRUE according to the passage？A
A．There are more traffic jams in China．
B．In America，all cars in the crossing must stop when they meet the stop line．
C．In America，any car cannot park in the streets in some residential areas．
D．If people want to turn，they can obey the guide of the traffic police．
54．What's the meaning of the underlined word in the fourth paragraph？B
A．A traffic rule
B．An established right
C．An order
D．A duty
55．What's the biggest difference between America and China？B
A．diet
B．traffic rules
C．costume
D．culture．
分析 美國的車輛中國多，但是交通事故比中國少，這是因為美國的人都嚴格的遵守交通法規(guī)，文章介紹了一些美國的交通規(guī)則．
解答 51．C細節(jié)理解題．由第一段可以看出，在美國很少發(fā)生交通阻塞和交通事故，所有司機都遵守交通規(guī)則，良好有序的交通規(guī)則對保障交通暢通起了重要作用．因此沒有必要設置那么多交通警察．C 項只是陳述事實，而非原因．選C
52．A細節(jié)理解題．由第三段即第二條內容可以看出，左拐的汽車要先進入這條通道并且向其他車輛發(fā)出拐彎信號．因此這條線路是供左拐的汽車使用的． 選A
53．A推理判斷題．由第一段中的"But there are very fewer traffic jams and accidents in America than in China．"可以判斷 D項正確；由第二段可以判斷A 項不對；由第四段可以判斷 B 項不對；由第四段中的"If people want to change lane or turn they must look behind and think being safe．"可以判斷C 項不對，司機想拐彎要向后看，而不是遵守交通警察的指揮．選A
54．B詞義猜測題．結合該段上下文，即等行人上了路邊臺階，汽車才可以向前開．可以猜測出priority"優(yōu)先權"，行人較之汽車有優(yōu)先權．故選B．
55．B細節(jié)題．根據文章內容主要介紹了一些美國的交通規(guī)則．其中的一些與中國交通區(qū)別很大，traffic rules of America are very specific，convenient，safe and humanizing．美國的交通很具體、方便、人性化，結合選項，B正確．
點評 本文是歷史文化類閱讀理解．做這類題材閱讀理解時要求考生對文章通讀一遍，做題時結合原文和題目有針對性的找出相關語句進行仔細分析，結合選項選出正確答案．推理判斷題也是要在抓住關鍵句子的基礎上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據
