2．选B　细节理解题。根据文章第二段第一句“They are usually organized with the help of the Internet or other digital communications networks.”和第二段最后一句“Using mobile phones ...”可知，答案B符合文意。

　　3．选C　细节理解题。根据文章第三段最后一句“Wasik claimed that he created the flash mob as a social experiment designed to laugh at fashion seekers ...”可知，答案C符合文意。

　　4．选B　推理判断题。根据文章最后一段最后一句“Flash mobs give people from all walks of life an opportunity to come together to create a memory.”可推知：人们由此被鼓励积极参与活动，故答案B符合文意。

　　.参考范文：

　　Last year, on 11 November, the sales of T­mall reached 35 billion yuan, which equals the total sales of all the Wangfujing Department stores for a whole year. It shows that the way people buy and sell things is changing and online shopping is becoming increasingly popular.

　　The reasons why people are crazy shopping online are as follows. For one thing, people can buy whatever they want at a much lower price online and all this can be done by just a click on the mouse. For another, it has become a trend for people to buy things on this special day, so you may find yourself out of date if you don't do the same.

　　In my opinion, while online shopping offers us a lower price and a wider variety, we should always buy things we really want and avoid wasting money.

【2017届高考英语一轮复习检测：Unit3　Computers （人教版必修2）Word版含答案】相关文章：

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（9）附答案

★ 2017届江苏省淮安市新马中学高考牛津译林版英语一轮复习活动单：模块8 Unit 3《The world of colours and light》

★ 2014届高考英语一轮复习必修5参考答案（外研版）

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 3 Life in the future

★ 辽宁省辽阳市2014高考英语单项选择一轮（暑假）训练（3）附答案

★ 安徽省淮南市2014高考英语一轮单项选择及文章训练（12）及答案

★ 2014高考英语（新人教版）一轮基础训练（12）A、B卷（附答案或解析）

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（37）附答案

★ 辽宁省辽阳市2014高考英语单项选择一轮（暑假）训练（4）附答案

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（17）附答案