2019版高考英语一轮复习Unit20NewFrontiers课件北师大版选修.ppt

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1、选修7Unit20　NewFrontiers科普知识与现代技术之(二)——前沿科技高考话题对接Contents单元检测•高考提能1234一积词汇见多识广二积短语顿挫抑扬三积句式写作扮靓四背语段语感流畅第一板块　重点词汇突破第二板块　短语、句式突破课堂双线提能课堂一刻钟演练，实现教材与高考的对接经典例句比较分析真题尝试翻译课文长难句Withoutthebreakthroughsofthesepioneersinscienceandtechnology,whetherluckyorplanned,theworldasweknowittodaywouldhave

2、beenacompletelydifferentplace.本句为含有状语从句的复合句。主句是theworld...wouldhavebeenacompletelydifferentplace;asweknowittoday为方式状语从句；whetherluckyorplanned为省略的让步状语从句；Withoutthebreakthroughs...andtechnology为without短语作含蓄虚拟条件。真题长难句WhenIhandedhimthegiftcard,sayinghecoulduseitforwhateverhisfamilymig

3、htneed,heburstintotears.(2015·全国卷Ⅰ)本句为含有状语从句的复合句。主句是heburstintotears;WhenIhandedhimthegiftcard是状语从句；sayinghecould...mightneed是现在分词短语作状语；hecould...mightneed是saying的宾语从句，省略that;whateverhisfamilymightneed是介词for的宾语从句。一、话题与语篇分层抓关键句概括层意行文结构第1段人工智能超出了我们的控制。指出现象第2～3段具有人工智能的机器可能会过度保护自己而伤害人

4、类，但电脑科学家为它们安装防火墙来避免机器人影响全世界。分析现象第4段安全问题有可能解决，但有困难。总结概括第1段划波浪线部分Therealproblemrelatestothepossibilitythatartificialintelligence(AI)maybecomeextremelygoodatachievingsomethingotherthanwhatwereallywant.第2～3段划波浪线部分[2]Amachinewithaspecificpurposehasanotherquality,onethatweusuallyassocia

5、tewithlivingthings:awishtopreserveitsownexistence.[3]Thepossibilityofenteringintoandlosingsuchamatchshouldconcentratethemindsofcomputerscientists.第4段划波浪线部分[4]SolvingthesafetyproblemwellenoughtomoveforwardinAIseemstobepossiblebutnoteasy.69．Accordingtosomeresearchers,wecanusefirewal

6、lsto.A．helpsuperintelligentmachinesworkbetterB．besecureagainstevilhumanbeingsC．keepmachinesfrombeingharmedD．avoidrobots'affectingtheworld二、话题与写作ThankYou!