In the 1990s，New York City officials started a campaign to remove signs of disorder like broken windows，graffiti markings，and rubbish.Soon，the rate of minor crimes in New York began to drop.Other cities around the world also began to use this crime­fighting method.

　　But the broken windows theory was also questioned.Experts said there was still no experimental evidence to prove that the drop in crime was a direct result of efforts to clean up city neighborhoods.

　　They said other influences could also have caused the drop in crime.Moreover，the broken windows theory did not fully examine the exact conditions of disorders that appeared to lead to crime.

　　The study from the Netherlands now provides the experimental information to support the broken windows theory.

　　语篇解读：欧洲的研究员发现，杂乱、无秩序会导致犯罪或不当行为的增加，然而，有些研究员对此观点提出了质疑。

　　6.The underlined word “graffiti” in Paragraph 1 probably means .

　　A.rude drawings

　　B.formal displays

　　C.public signs

　　D.interesting advertisements

　　解析：猜测词义题。根据句中的“broken windows”和“waste on the ground”可推断，graffiti意为“涂画，涂写”。

　　答案：A

　　7.Other cities followed New York's example because .

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