问题 单项选择题

在人口最稠密的城市中,警察人数占总人口的比例也最大。这些城市中的“无目击证人犯罪”的犯罪率也最低。看来,维持高比例的警察至少可达到有效地阻止此类犯罪的效果。下列哪项如果为真,最能有效地削弱上述推论

A.警察的工作态度和巡逻频率在各个城市是有很大差别的。

B.高人口密度本身使得犯罪现场无目击证人的可能性减少。

C.许多发生在大城市的非暴力犯罪都与毒品有关。

D.人口稠密的城市中,大多数罪犯并不是被警察抓获的。

答案

参考答案:B

解析:高人口密度本身可以使得犯罪现场无目击证人的可能性减少,正是选项B的观点。选项A不妥。警察的巡逻频率会增加警察目击犯罪的机会,但与城市人口相比,警察的人数大大低于市民的人数。题干中讲的人口稠密和警察人数两个因素中,人口稠密起的作用更大。所以,选项B比A更合适。

阅读理解

Professor Barry Wellman of the University of Toronto in Canada has invented a term to describe the way many North Americans interact(互动)these days.The term is “networked individualism”.This concept is not easy to understand because the words seem to have opposite meanings.How can we be individuals(个体)and be networked at the same time?You need other people for networks.

Here is what Professor Wellman means.Before the invention of the Internet and e-mail,our social networks included live interactions with relatives,neighbors,and friends.Some of the interaction was by phone,but it was still voice to voice,person to person,in real time.

A recent research study by the Pew Internet and American Life Project showed that for a lot of people,electronic interaction through the computer has replaced this person-to-person interaction.However,a lot of people interviewed for the Pew study say that’s a good thing.Why?

In the past,many people were worried that the Internet isolated(孤立)us and caused us to spend too much time in the imaginary world of the computer.But the Pew study discovered that the opposite is true.The Internet connects us with more real people than expected—helpful people who can give advice on careers,medical problems,raising children,and choosing a school or college.About 60 million Americans told Pew that the Internet plays an important role in helping them make major life decisions.

Thanks to the computer,we are able to be alone and together with other people—at the same time!

小题1:The underlined phrase “networked individualism”probably means that by using computers people_______.

A.stick to their own ways no matter what other people say

B.have the rights and freedom to do things of their own interest

C.do things in their own ways and express opinions different from other people

D.are able to keep to themselves but at the same time reach out to other people小题2:According to the Pew study,what do many people rely on to make major life decisions?

A.Networks.

B.Friends.

C.Phones.

D.Parents.小题3:It can be inferred from the Pew study that_______.

A.people have been separated from each other by using computers

B.the Internet makes people waste a lot of time and feel very lonely

C.the Internet has become a tool for a new kind of social communication

D.a lot of people regard the person-toperson communication as good thing小题4:Which would be the best title for this passage?

A.We’re Alone on the Internet.

B.We’re Communicating on the Internet.

C.We’re Alone Together on the Internet.

D.We’re in the Imaginary World of the Internet.

单项选择题