17．Personal computers and the Internet give people new choices about how to spend their time．
Some may use this freedom to share less time with certain friends or family members，but new technology will also let them stay in closer touch with those they care most about．I know this from personal experience．
E-mail makes it easy to work at home，which is where I now spend most weekends and evenings．My working hours aren't necessarily much shorter than they once were but I spend fewer of them at the office．This lets me share more time with my young daughter than I might have if she'd been born before electronic mail became such a practical tool．
The Internet also makes it easy to share thoughts with a group of friends．Say you do something fun see a great movie perhaps-and there are four or five friends who might want to hear about it．If you call each one，you may tire of telling the story．
With E-mail，you just write one note about your experience，at your convenience，and address it to all the friends you think might be interested．They can read your message when they have time，and read only as much as they want to．They can reply at their convenience，and you can read what they have to say at your convenience．
E-mail is also an inexpensive way stay in close touch with people who live far away．More than a few parents use E-mail to keep in touch，even daily touch，with their children off at college．
We just have to keep in mind that computers and the Internet offer another way of staying in touch．They don't take the place of any of the old ways．
27．The purpose of this passage is toC．
A．explain how to use the Internet
B．describe the writer's joy of keeping up with the latest technology
C．tell the merits（价值） and usefulness of the Internet
D．introduce the reader to basic knowledge about personal computers and the Internet
28．The use of E-mail has made it possible for the writer toB．
A．spend less time working B．have more free time with his child
C．work at home on weekends D．work at a speed comfortable to him
29．According to the writer，E-mail has an obvious advantage over the telephone because the former helps oneA．
A．reach a group of people at one time conveniently
B．keep one's communication as personal as possible
C．pass on much more information than the later
D．get in touch with one's friends faster than the later
30．The best title for this passage isD．
A．Computer：New Technological Advances
B．Internet：New Tool to Maintain Good Friendship
C．Computers Have Made Life Easier
D．Internet：a Convenient Tool for Communication．
分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了新的科技使我们能够更紧密地接触我们最在乎的人和事物，介绍了Email的便利，让我们了解了互联网的用途和使用价值．
解答 CBAD
27．C．主旨大意题．根据第一段Personal computers and the Internet give people new choices about how to spend their time．可知，个人计算机和互联网给了人们消磨时间的新选择，之后文章用大篇幅说明了网络和计算机带给人们的便利，因此这篇文章的主要内容就是介绍互联网的价值和用处，即B．tell the value and usefulness of the Internet
28．B．细节理解题．根据This lets me share more time with my young daughter than I might have if she'd been born before electronic mail became such a practical tool．可知，作者在平时晚上和周末都会在家通过邮件进行工作，这样使得他可以与自己的女儿分享更多的时间，即share more time with his young daughter，因此答案为B．have more free time with his child
29．A．细节理解题．根据第四段句首The Internet also makes it easy to share thoughts with a group of friends．可知，互联网也使我们更容易的与一群朋友分享想法，根据该段下面的描述，你没有必要给每个朋友打电话，你只要在你方便的时候写一封邮件然后群发就可以了，你的朋友会在他们方便的时候阅读你的邮件并回复你，同样你也可以在方便的时候阅读回信，因此互联网可以让我们更方便的与一群朋友分享东西，即A．reach a group of people at one time conveniently
30．D．文章标题题．第一段提出了文章的主题句：but new technology will also let them stay in closer touch withthose they care most about．再浏览文章中心句后的各段大意．注意出现的高频词，easy，convenience，an inexpensive way，说明了方便的特点-convenient．再缩略中心句，与选项匹配，翻译同义词，communication交往-stay in closer touch保持更紧密联系，属同意词，确定为D项．
点评 学生需要认真阅读原文，把握文章大意，对文章脉络有整体的了解，能仔细查找文中细节，并能根据文章内容进行合理的推测判断．
