第三篇 Cellphones：hang up or keep talking
　　41. People buy cell phones for the following reasons EXCEPT that
　　A) they’re popular.
　　B) they’re cheap.
　　C) they’re useful.
　　D) they’re convenient.
　　题目问人们购买手机不是为了以下哪个原因。
　　从第一段“popular”，“more than a means of communication”可看出ACD选项，故答案选B。
　　42. The word “detected” in paragraph 3 could be best replaced by
　　A) cured.
　　B) removed.
　　C) discovered.
　　D) caused.
　　题目问第三段“detected”可以被()代替。
　　原文“Signs of change in the tissues of the brain and head can be detected with modern scanning(扫描) equipment.”大脑和头部组织的变化迹象可以用现代扫描仪器detected
　　A) cured.治疗 B) removed.移除 C) discovered.发现 D) caused.引起
　　答案选C，大脑和头部组织的变化迹象可以用现代扫描仪器发现。
　　43. The salesman retired young because
　　A) he disliked using mobile phones.
　　B) he was tired of talking on his mobile phone.
　　C) he could’t remember simple tasks.
　　D) his employer’s doctor persuaded him to.
　　题目问销售员年轻的时候退休是因为()。
　　原文“In one case, a traveling salesman had to retire at a young age because of serious memory loss. He couldn’t remember even simple tasks.”销售员提早退休是因为记忆力衰退，表现在他甚至不能记住一些简单的任务。答案选C。
　　44. On the safety issue of mobile phones, the manufacturing companies
　　A) deny the existence of mobile phone radication.
　　B) develop new technology to reduce mobile phone radiation.
　　C) try to prove that mobile phones are not harmful to health.
　　D) hold that the amount of radiation is too small to worry about.
　　题目问关于手机安全的问题，生产公司()。
　　原文“Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.”他们认为辐射容量很少，不用担心。答案选D。
　　45. The writer’s purpose of writing this article is to advise people
　　A) to buy mobile phones.
　　B) to update regular phones.
　　C) to use mobile phones less often.
　　D) to stop using mobile phones.
　　题目问作者写这篇文章的目的是为了建议人们()。
　　原文“it’s best to use mobile phones less often.”最好少用手机。答案选C。