3．The passage is mainly to ________.

　　A．teach knowledge B．give advice

　　C．entertain the readers D．offer information

　　【解题导语】本文是一篇广告类应用文，主要介绍了一场关于大脑的知识讲座的相关信息。

　　1．B　细节理解题。根据Speakers：部分的"Peggy St.Jacques-lecturer in psychology and memory research at the University of Sussex"可知，Peggy St.Jacques是记忆方面的专家。故选B项。

　　2．A　推理判断题。根据Booking information：部分中的"The schedule for the day will be confirmed closer to the event, and will be emailed to all ticket holders."可知，持票者只有留下电子邮箱才能收到具体的计划安排。故选A项。

　　3．D　写作意图题。纵观全文内容，本文主要介绍了一场关于大脑的知识讲座的相关信息。由此可推断出，本文的主要目的是提供信息。故选D项。

　　长难句分析：We'll study techniques for controlling the brain as well as the latest technologies that allow you to control the outside world using your mind alone.(Overview：部分最后一句)

　　分析：本句为主从复合句。句中that allow you to control the outside world using your mind alone为that引导的定语从句，修饰先行词technologies。

　　译文：我们将研究控制大脑的技术以及让你独自使用信念来引导你控制外部世界的最新技术。

　　B

　　(2018·绵阳市高中第一次诊断)

　　David Rees runs a truly distinctive business.He charges customers$15 to sharpen their pencils to perfection，using a variety of tools.

　　I know what you're thinking-is this a joke？The 39­year­old gets asked that question a lot.To clarify everything，he even created a special section on his website telling everyone he's actually providing a real service.

　　You can supply your own pencil or you can have Rees sharpen one of his own favorite 2B pencils.After that，he mails it to you in a display tube with the shavings in a separate bag，and an authentic certificate which just happens to mention the pencil is so sharp as to be a dangerous object.

　　To achieve the desired result，the master sharpener uses all kinds of tools，including general sandpaper，pocket knives and even a special$450 sharpening machine."It depends on what the customer wants to use his/her pencil for，"he says.That determines the most appropriate pencil­sharpening technique.Some customers buy pencils as inspirational symbols while others buy them because of their special memories of classic 2B pencils.

　　$15 to have a pencil sharpened is a bit expensive though，right？You're not the only one who feels that way，and David's unique business has really angered lots of people，who talk of inequality in America，saying it is so insane for the wealthy to pay$15 to sharpen a pencil.But others will say，"This is just our urge to put an end to the welfare state because new ideas arise along with the business."

David admits his trade is sort of unusual.But there are those who actually value his service，as is proven by the over 500 orders he has gotten.