高中英语 2_Unit_3__Computers课件 新人教版必修2 课件.ppt

Unit3Computers基础落实Ⅰ.高频单词思忆1.Thedevelopmentofthesteamenginewasagreat(科技的)advance.2.Ihaven’t(计算)theresultofthemathsproblem.3.Life(完全地)changedwhenIwenttocollege.4.Peoplewillbuildalarge(人造的)lakeinthenewpark.5.Beforegoingtoschoolallthechildrenaregivenan(智力)test.6.Difficultieswillaaswedothework.7.PIprefertogotoBeijingformyholiday.8.Doyouknowthatfootballcwhoisstandingthere?9.“OneWorldOneDream”fullyreflectstheessence(实质)andtheuvaluesoftheOlympicspirit.10.Theinventionofthetelevisioncausedarinourdailylife.Ⅱ.重点短语再现1.从……时起2.结果3.如此……以致于4.在某种程度上5.在……的帮助下6.处理；安排；对付7.看守；监视8.共有；共用9.弥补10.毕竟Ⅲ.典型句式运用1.IdevelopedveryslowlyandittooknearlytwohundredyearsbeforeIwasbuiltasananalyticalmachinebyCharlesBabbage.我发育缓慢差不多到了两百年之后查尔斯·巴比奇才把我制成了一台分析机。（1）“Ittook/was+一段时间+before从句”是一个固定句型意为“”。（2）before用于这类句型时的结构还有：①Itdidn’ttake/waslong(或一段时间)before...过了不久（一段时间）就……②Itwilltake/belong(或一段时间)before...要过很久（一段时间）才……③Itwon’ttake/belong(或一段时间)before...不久（一段时间后）就会……2.AstimewentbyIwasmadesmaller.随着时间的推移我被制造得越来越小。句中的as是连词引导从句意为“”或“”。表示“随着……”时也可以用with但with后只接名词短语。3.AndmymemorybecamesolargethatevenIcouldn’tbelieveit!我的记忆能力变得如此巨大甚至连我自己都不能相信！so+adj./adv.+that...意为“”引导结果状语从句。sothat引导从句相当于inorderthat该从句中常用情态动词maymightcancouldwillwould和should。4.AfterallwiththehelpofmyelectronicbrainwhichneverforgetsanythingusingmyintelligenceiswhatI’mallabout!不管怎么样在我过目不忘的电子脑的帮助下运用智能就是我的一切。withthehelpofmyelectronicbrainwhichnever