综合教程4 unit two 语言点

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1、1.DifficultSentences1)Salesoftheautomobileindustrystandataboutatrilliondollars,makingittheworld’sbiggestmanufacturingindustry.Howdoyouunderstandthewordstand?(=Standisusedtoshowaparticularleveloramount.Forexample:Inflationcurrentlystandsatninepercent.Yourbankbalancestandsat$

2、460.)2)Thekeytotomorrow’s“smartcars”willbesensors.Paraphrasethesentenceandpayattentiontothestructurethekeytosth.(=Thecrucialelementofthefuturesmartcarswillbesensors.)3)Shouldyoumakeaseriousdrivingmistake(e.g.,changelaneswhenthereisacarinyour“blindspot”)thecomputerwouldsound

3、animmediatewarning.Analyzethestructureofthissentence.(=“Should”isoftenusedinsubordinateclausesafterif--itmakesaneventsoundlessprobable.Forexample:IfyoushouldseeHarry,givehimmyregards.(Youmightseehim.)InBritishEnglish,thestructure“if+subject+should+verb”isoftenreplacedby“Sho

4、uld+subject+verb”.Forexample:ShouldyouseeHarry,givehimmyregards.)4)Toeliminatethis,atinycamerahiddeninthedashboardcanbetrainedonadriver’sfaceandeyes.(=Heretrainmeanstofocusonoraimat.)5)Sensorsinyourcartunedtoradiosignalsfromorbitingsatellitescanlocateyourcarpreciselyatanymo

5、mentandwarnoftrafficjams.Analyzethissentence.(=Therearesensorsinthecarandtheyaretunedtoradiosignalswhichcomefromorbitingsatellites.Thesensorscanlocatethecarandwarnoftrafficjams.)6)Someofthemlocateacar’spositionbycorrelatingtherotationsinthesteeringwheeltoitspositiononamap.E

6、xplainhowthenavigationalfacilitieshelplocatethecar’sposition.(=Theylocatethecar’spositionbyestablishingtherelationbetweentherotationsinthewheelandthecar’spositiononamap.)7)Thecommercialindustryispoisedtoexplode.1.Whatdoesthecommercialindustryreferto?(=Itreferstotheindustryt

7、owhichGPSisappliedcommercially.)2.Paraphrasethesentence.(=Thecommercialindustryisboundtodeveloprapidlyandbeprosperous.)8)Onaneight-milestretchofInterstate15tenmilesnorthofSanDiego,…1.HowmuchdoyouknowabouttheInterstateintheU.S.?(=Interstateisoneofasystemofhighwaysextendingbe

8、tweenandconnectingthemajorcitiesoftheUnitedStates.)2.Whatdoesstretchmean?(=Itmeans