(2021新高考适应卷,B)Inmyeverydaylife,Iamonanongoingjourneytofigureoutdifferentwaystoreducemycarbonfootprintontheplanet.Acarbonfootprintisthemeasureofinfluenceouractivitieshaveontheenvironment,inparticularclimatechange.Itiscalculatedbytheamountofgreenhousegasweproduceinourdailylives.Fortunately,nowadaysitismucheasiertomakeeco-friendlylifestylechoicesthan,letssay,20yearsago.Butonequestionhasbeenonmymindalotlately:isitbettertobuyneweco-friendlyproductsorusedtraditionallyproducedgoods?
Afterdoingsomeresearch,Ihavedecidedthatsomethingsarebetternewandothersarebetterused.Letmetrytoexplain.
Acarbonfootprintismadeupoftwoparts,theprimaryfootprintandthesecondaryfootprint.Theprimaryfootprintisameasureofourdirectemissions(排放)ofcarbondioxide(CO2)fromtheburningoffuels,includinghouseholdenergyconsumptionandtransportation.ThesecondaryfootprintisameasureoftheindirectCO2emissionsfromthewholelifecycleofproductsweuse—thoserelatedtotheirproductionandbreakdown.
Basedonthisunderstanding,wehaveagooddealofcontrolandresponsibilityoverourcarbonfootprint.Thingslikedishes,clothesandfurniturefallintothe “secondaryfootprint” group,solessismoreandwecanfocusonfindingusedgoodstoavoidtheaddedproduction.However,forthecarandtheotherappliances(设备)thatweneedwecangowithnew,energy-savingmodels.Iheardsomewherethatelectronicsandappliancesgiveoff90%oftheircarbonfootprintaftertheyleavethefactory.Soitseemsmostreasonabletogofortheenergy-savingmodels.Themainconcernhereistheamountofenergythatgoesintothemakingofnewproductsandwhetherornotthatextracarbonisworththefootprinttheproductwillmakeonceitgetstoyou.
1.Whatisthetextmainlyabout?
A.Whatappliancestobuytosaveenergy.
B.Whatacarbonfootprintmeansinourlife.
C.Howtoidentifydifferentcarbonfootprints.
D.Howtomakeeco-friendlylifestylechoices.
2.Whatdoweknowaboutthesecondarycarbonfootprint?
A.Itisrelatedtoourconsumptionoffuels.
B.Itismadewhenwearebuyingtheproducts.
C.Itislessharmfulthantheprimarycarbonfootprint.
D.Itiscountedasoursthoughnotdirectlymadebyus.
3.Whichofthefollowinghelpsreduceourcarbonfootprintaccordingtotheauthor?
A.Usingsecond-handtextbooks.
B.Usingoldandexpensivecars.
C.Buyingnewbutcheapclothes.
D.Buyingnewwoodenfurniture.
4.“Thefootprint”underlinedinthelastsentencereferstotheCO2producedin .
A.usingtheproduct B.recyclingtheproduct
C.makingtheproduct D.transportingtheproduct
