D．explain how to store information

　　【解析】　推理判断题。文章主要讨论网络是否引起了人们的大脑记忆事情的变化。作者首先运用两个问题来引出话题，因此A项最佳。文章开头的问题是导入话题的，因此可以排除其他选项。

　　【答案】　A

　　2．What can we learn about the first experiment?

　　A．The Sparrow's team typed the information into a computer.

　　B．The two groups remembered the information equally well.

　　C．The first group did not try to remember the information.

　　D．The second group did not understand the information.

　　【解析】　细节理解题。由第二段中的People in the first group knew they could find the information again，so they did not try to remember it.可知，因为知道电脑会储存信息，所以第一组实验者就没有去记忆这些信息。故选C。A项错在不是Sparrow的团队，而是参加实验的人把信息输入电脑，可排除；B项与第二段倒数第二句．..the second group remembered the information better.矛盾，可排除；文章中未提及D项，可排除。

　　【答案】　C

　　3．In transactive memory，people ．

　　A．keep the information in mind

　　B．change the quantity of information

　　C．organize information like a computer

　　D．remember how to find the information

　　【解析】　细节理解题。由第三段中的When people use the Internet，they do not remember the information.Rather，they remember how to find it.可知，在这样的情况下，人们更容易记住怎样找到信息，而不是信息的内容，故选D项。

　　【答案】　D

4．What is the effect of the Internet according to Sparrow's research?