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1、Unit2SmartcarsInthisUnit,youwill…Pre-readingtaskText-analysisWordsandexpressionsClassassignmentsWritingskillsHomeworkpre-readingtaskDiscussing:IfIcanaffordacar,Iwillnotbuyonebecause…Listentothepassageagainandsaywhatchangeswillmakedriving:--wheels/power?--seatingarrangement?
2、--roadsystem?--drivers?II■Thecharacteristicofexpositorywriting:Factsandopinionsareofteninterwoven(交织)inexpositorywriting,andwemustlearntodistinguishthem.PleasetellsentencesthatexpressopinionsfromfactualstatementsinPartI.(分辨事实和看法)Anotherability---findingoutdefinitions:Provid
3、edefinitionsfor“blindspot”and“globalpositioningsystem”,“atomicclock”,“automateddriver.”TextanalysisWhatis“blindspot”?2.WhatistheGlobalpositioningsystem?3.Whatisanatomicclock?4.Whatisanautomateddriver?keykeykeykeyAnswers:1.Ablindspotmustbeaportionoftheroadbehindacar,whichadr
4、ivercannotobservefromtherear-viewmirror2.Globalpositioningsystemisaservicelinkedwithasatellite.Theymakeitpossibletodetermineyourlocationontheearthtowithinaboutahundredfeet.3.Atomicclockvibratesataprecisefrequency,accordingtothelawsofthequantumtheory.4.Anautomateddriverisapl
5、ancallsforcomputers,aidedbythousandsofthree-inchmagneticspikesburiedinthehighway,totakecompletecontrolofthedrivingofcarsonheavilytraffickedroads.Carswillbebunchedintogroupsoftentotwelvevehicles,onlysixfeetapart,travelinginunison,andcontrolledbycomputer2.eliminateremove,esp.
6、sb./sth,thatisnotwantedorneeded;getridofvt.消除，消灭，排除Examples:1.Itisdifficultforourgovernmenttoeliminatepoverty.2.他可能被取消了参加游泳比赛的资格。Collocation:eliminatesth.;eliminatesth.fromsth.e.g.Ifyouthinkyoumaybeallergictoafoodordrink,eliminateitfromyourdiet.3.Intheairintheearth'satmosph
7、ere;uncertain,notyetdecided空气顺空中;悬而未决Examples:Thereisapeculiarsmellintheair.Hundredsofbirdssuddenlyroseintheair.Ourplansarestillintheair.4.startupExample:Peterlookedinhismirrorandstarteduptheengine.5.alertExamples:Whyweren'tthepolicealerted?Collocation:alertsb.;alertsb.tost
8、hThemanageralertedthestafftothecrisisfacingthecompany.Theteacheralertedthestudents
