OG-练习册参考答案(直通车)

参考答案DAY1Passage11．Communityserviceisanimportantcomponentofeducationhereatouruniversity.2．Anewcommunityprogramcalled"Oneonone"helpselementarystudentswho'vefallenbehind.3．Majors4．Tutoring5．Volunteer6．ProfessorDodgewillactasamentortothetutors—he'llbeavailabletohelpyouwithlessonplansortooffersuggestionsforactivities.7．Community8．Itlooksgoodonyourresume,too,showingthatyou'vehadexperiencewithchildrenandthatyoucareaboutyourcommunity.Passage21.Insurance2.It'sinterestingtonotethatinsurancehasexistedinsomeformforaverylongtime.3.contracts4.Shipping5.Theygrantedloanstomerchantswiththeunderstandingthatifaparticularshipmentofgoodswaslostatsea,theloandidn'thavetoberepaid.6.Loans7.Duringperiodsofheavypiracyatsea,forexample,theamountofinterestandthecostofthepolicywentupconsiderably.8.Cautious9.Hazardous10.Therearefourpointsthatweresalientthenandremainparamountinallpoliciestoday.DAY2Passage11.Gallon2.Vat3.Tank4.ForfouryearsNewmanobservedscubadiversastheysimulatedwalkingontheMoonandonMarsonherunderwatermovingbelt.5.Todothis,Newmanattachedweightstothediversandthenloweredthemintothetankandontothetreadmill.6.Treadmill7.Gravity8.ButatMartiangravity,thedivershadgreatertractionandstabilityandcouldeasilyadjusttoapaceof1.5milesperhour.9.Martian10.Comparedtolunarspacesuits,Martianspacesuitswillrequiresmallerairtanks;Passage21.Watery2.Atoneandahalfmillionacres,it'stoobigtoseeitalltoday,butthistourwillofferyouagoodsampling.3.Exotic4.Alligator5.Boardwalk6.Theboardwalkishighenoughtogiveyouagreatviewofthesawgrassprairie.7.Prairie8.However,don'tdothisunlessyouhaveaverygoodsenseofdirectionandcannegotiateyourwaythroughtallgrass.9.Duringthespringandsummer,themosquitoeswilljustabouteatyoualive10.RepellentDAY3Passage11.We’rebeingvideotapedforthelocalTVstations.2.Astronaut3.Forexample,outerspaceisavacuum—there'snogravityorairpressure.4.Explode5.Fahrenheit6.Thisphotoenlargementhereisalife-sizeimageofanactualspacesuitwornbyastronautsonthelastspaceshuttlemission.7.Bladder8.Inflatable9.Sac10.Theinnermostlayersprovideliquidcoolingandventilation.11.helmetPassage21.TheclubispleasedtopresenttheTVversionofTheCatherine