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  3. America has seen a drop in crime rates that in earlier years would have been universally viewed as impossible. The overall crime

America has seen a drop in crime rates that in earlier years would have been universally viewed as impossible. The overall crime

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问题     America has seen a drop in crime rates that in earlier years would have been universally viewed as impossible. The overall crime rate has plummeted by 45% since peaking in 1991 and by 13% just since 2007—counterintuitively continuing to drop through the recession and sharp spike in unemployment.
    Since 1991, according to FBI data, the number of violent crimes has fallen 36% nationally and 64% in the nation’s largest cities. And in New York and Los Angeles, the nation’s two largest cities , it has fallen even further. Property crime has also become increasingly rare. Incredibly, in New York City, car thefts have plunged 94% in the past two decades.
    How is this possible? In the mid-1990s, few saw this decline coming, and many warned that crime would surge once again as teens of that era grew into young adults. Today, criminologists still differ on what has caused the nationwide turnaround in crime rates and why those dire predictions never came to pass. But crime-fighting technology, better policing, aging societies, growing urban populations and declining usage of hard drugs are widely cited. For many Americans, the drop in crime has resulted not only in a much higher quality of life but in a reduced economic burden as well. Safer cities generally mean stronger urban economies.
    In the same category of big surprises, teen-pregnancy rates have fallen to their lowest level in more than 30 years, according to the widely respected Guttmacher Institute. They have declined 51% from their 1990 peak, based on the latest available data, and the teenage birthrate is down 43% from that year’s level. Today, fewer teens are becoming pregnant and becoming mothers than at any point since reliable data has been collected by the National Center for Health Statistics. This is also true for women in the 20-to-24 age group. To put it mildly, there were very few predictions to this effect a generation ago. In addition, overall birthrates in the U. S. have turned up for the first time since 2007—including for children born to women in a college education—to just shy of 4 million.
We can conclude from the second paragraph that______.
选项 A、property crime has also been increasing like violent crime
B、the number of violent crimes has fallen 36% in the biggest cities
C、in New York City, car thefts have dropped to 94% in the past two decades
D、the violent crimes have become fewer in America, especially in big cities
答案D
解析 选项[A]对应原文：Property crime has also become increasingly rare．文章提到property crime是越来越少而不是越来越多，故该项错误。[B]项对应原文：Since 1991，according toFBI data，the number of violent crimes has fallen 36％nationally and 64％in the nation’s largestcities．通过阅读该句可以知道，36％是全国的数据而非最大城市的数据，最大城市的降幅是64％。故该项错误。选项[C]对应原文：Incredibly，in New York City，car thefts have plunged94％in the past two decades．表面看该项和原文几乎是一样的，不一样的地方是drop to 94％和原文的plunged 94％，其中drop=plunge。plunge一词原意是“跳水”，引申为“缩水，缩小，减少”的意思，而该项设置的陷阱在于介词to，原文说“plunged 94％减少94％”，而该项说的却是“dropped to 94％减少至94％”，故错误。选项[D]对应该段第一句话：Since 1991，according toFBI data，the number of violent crimes has fallen 36％nationally and 64％in the nation’s largestcities．由此可知，全国暴力犯罪率降低，尤其是大城市，故该项是正确的。
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