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  3. A new poll shows that people believe that computers and the Internet have made life better for Americans, but people also see so

A new poll shows that people believe that computers and the Internet have made life better for Americans, but people also see so

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问题     A new poll shows that people believe that computers and the Internet have made life better for Americans, but people also see some dangers in the trend toward computerization.
    The poll found that the public favors some government protection from cyber-problems (网络问题), but in general people are not especially concerned about issues such as information overload or the never-ending flow of phone calls, faxes and e-mails. A separate survey of children aged 10-17 shows that they have a more positive attitude about computers than adults do, and most have made use of up-to-date technology in their schools.
    The survey found that enthusiasm for computers and the Internet is found in all income groups, all regions of the country, all races, and most age groups. However, people over 60 and those towards the lower end of the income rank tend to show lower rates of computer ownership and Internet usage. The survey shows that "some kind of gap has been crossed: Computers are part of everyday life for most Americans, and the Internet is close behind."
The first paragraph shows that ______ .
选项 A、the new poll about computers and the Internet is helpful
B、people should explore the dangers of computerization
C、people can not do without computers and the Internet
D、computerization has its advantages and disadvantages
答案D
解析 推理判断题。本题询问第一段表明什么。根据文章第一段的民意调查显示，电脑使美国人的生活变得更加美好，但是电脑化趋势也存在一些危险，由此可知电脑化既有其优点也有其缺点，故选项D为正确答案。选项A(对电脑和因特网使用的最新民意调查是很有用的)主要强调民意调查的重要性，而第一段主要是突出电脑和因特网的优势和弊端，故此项不正确。第一段中虽然提到电脑化的危险，但并没有强调人们发掘电脑化趋势危险的必要性，故选项B不符合文意。选项C(人们没有电脑和因特网什么也不能做)的说法过于绝对，而且文中也未涉及，故不选。
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