2021_2022学年上海宝山区上海大学附属中学高一下学期期中英语试卷（4月线上教学调研）(详解)

2021~2022学年上海宝山区上海大学附属中学高一下学期期中英语试卷（4月线上教学调研）(详解)一、完形填空1.Youdon'thavetobeagardener,afarmer,oravegetariantoappreciatehowmuchwealldependonplants.Plantsuswithfood,shelter,clothing,medicine,andeventheairwebreathe!Herearejustsomeofthewaysthatpeoplerelyonplants,thosenativetotheUnitedStates.CLEANAIRANDWATER:Plantsarethebasisofhealthyecosystemsthatmanyfunctions,includingpurifyingairandwater.Greenplantsharnessenergyfromsunlightthroughtheofphotosynthesis(光合作用).Witheverybreathwetake,wedependontheoxygenthatisgivenoffasaby-productofthatreaction.Plantsalsothewatercycle.Morethan90%ofthewaterthatistakeninthroughaplant'srootsiseventuallybacktotheatmosphereinaprocesscalledtranspiration.FOOD:PlantsprovidethebasisofmostfoodwebsonEarth.Eventhemeateaters,suchaslions,needplantsbecausethepreytheyareplanteaters.Thewildrelativesofourownfoodplantsarebecomingincreasinglyimportantforbreedingtomakehealthierandmoreproductivecrops.theTexaswildrice,knownfromonlyoneriverinTexas,isbeingbredwithnorthernwildricetodevelopa