大學英語綜合教程四Key to Unit 2

KeytoUnit2LanguageSenseEnhancement1.1)cure 2)impact3)orbitingsatellites 4)warnof5)location 6)Atanygiventime7)vibrate 8)detectedcalculate 10)convertedVocabularyI1.expansion 2)automated3)vapor 4)takecontrolof5)hazards 6)satellite7)vibrated 8)magnetic9)bunched 10)intheair11)got/wasstuckin 12)approximately2.1)sendout 2)standupfor3)passfor 4)wereclosinginon5)startingup 6)wentthrough7)fillout 8)fallinto3.ThenewcardesignincorporatesallthelatestsafetyfeaturesTosuspendourhammock,weneedtofindtwotreestenfeetapart.Jasonfacesupto10yearsinprisonfor offeringbriberymoneytotheUSnavyofficialresponsibleforawardinglucrativecontractstohisconstructionfirm.Manufacturersusuallybeginbybuildingtheprototypeofanewmodel beforetheyupafactorytomakethecars.Medicalevidenceshowsthatsmokingandlungcancerarecorrelatedinallracialgroups.4.Inthe1980sthenotionthatacarwoulddriveitselfwassciencefiction;todaywithapplicationoftelematicsandremotecontrol,italmosthasturnedintoareality.Presentlylotsoftheworlsleadingautomobilecompaniesarepoisedtolaunchnewsmartcars.Soundsareproducedbyobjectsthatvibrateintheairataratethattheearcandetect.Thisrateiscalledfrequencyandismeasuredinhertz,orvibrationspersecond.Reflectivedevicesaremorevisibleatnightandareusedinsomelocationstomarklanesandothersignificantplacesontheroad.What'smore,automatedvehicle-controltechnologiesarepresentlyunderdevelopmenttoimprovehighwaysafety.Thesedevicesaremountedinthevehicleandcanalertadrivertoanimpendinghazardor,inanemergency,overridetheactionsofthedriver.WordFormationClippedwords Blendskilo kilogram Medicare medicalcarememo memorandum email electronicgymgymnasiumcomsat communicationssatellitelibliberationnewscast newsbroadcastdocdoctorskyjackskyhijackvetveterinarianEurodollarEuropeandollarpreppreparatorybrunchbreakfastandlunchautoautomobiletelecasttelevisionbroadcastfluinfluenzaOxbridgeOxfordandCambridgeUsage1.swimmingpool 2.drawingboard3.enrichedMiddleEnglish 4.disturbingchange5.fullydevelopedprototype 6.Cannedfoods7.workingpopulation 8.puzzlingdifferencesComprehensiveExercisesCloze1.1)computerized 2)startup3)bepoisedto 4)alert5)hazards 6)monotonous7)takecontrolof 8)steer9)lane 10)decrease11)calculate 12)eliminate13)gettingstuckin 14)mounted15)detect 16)vapor2.1)generates2)related3)revolutionized4)enabled 5)opportunities6)overall7)manufacturing8)dependent9)interact 10)fatalities1.1）Therewasanunusualquietnessintheexceptforthesoundofartilleryinthedistance.2）TheexpansionofurbanareasinsomeAfricancountrieshasbeencausingasignificantfalllivingstandardsandanincreaseinsocialproblems.Theresearchshowsthatatmosphericcarbondioxidelevels arecloselycorrelatedwithtemperatures.Thefrequencyofthebusservicehasbeenimprovedfrom15to12minuterecently.Thediverstoodontheedgeofthedivingboard,poisedtojumpatthesignalfromthecoach.2.Automobileshave,sincetheirinvention,revolutionizedtransportation,changingforeverthewaypeoplelive,travel,anddobusiness.Ontheotherhand,theyhavebroughtespeciallyhighwayfatalities.However,todaytheapplicationofcomputertechnologyandelectronicsensorsindesigningandmanufacturingcarsmakesitpossibletoeliminatemostoftrafficaccidents.Forexample,electronicsensorsmountedinyourcarcandetectalcoholvaporintheairandr