Unit4Step1WarmupStep1WarmupTechnologyTechnologyStep2Guessing:Whichofthesetopicsdoyouthinkitwillmention?Readfastandfindout!theInternetartificialhumantimetravelrobotsglobalwarmingvirtualreality（虚幻/模拟现实）Thestructureofthepassage(文章的写作结构）Step4GuessthemeaningcybercriminalhackercyberterroristtheNet(Internet)virtualrealitye-mail1cybercriminalStep5Step6CreationandSpeakingThanksforlistening!UsefulExpressions1.affectourlivesLine11.inthelastthirtyyears=inthepastthirtyyearsinthepastLine42.connecttoLine103.bepessimisticaboutLine216.beoptimisticaboutLine247.findoutholidayoffersLine258.allsortsofLine3210.ahugegrowthofshoppingontheNetLine3611.getentertainmentLine3912.mailserviceLine4613asif=asthoughPractice4.尽管我们有许多困难，但我们应当乐观地对待生活。Weshouldbe__________________ourlife________weareingreattrouble.5.---Fivedollars.That’smylast_____.---Allright.That’sadeal.A.opportunityB.amountC.supportD.offer6.Whenheheardourdifficulty,he____tohelp.A.offeredB.suggestedC.supportedD.said7.Howbeautifulthispictureis!Itlooks______thebutterfliesinitwereflyingtous.A.asif/thoughB.thatC.likeD.if高三英语总复习