英語專業(yè)四級考試真題及答案9

經(jīng)典word整理文檔，僅參考，雙擊此處可刪除頁眉頁腳。本資料屬于網(wǎng)絡(luò)整理，如有侵權(quán)，請聯(lián)系刪除，謝謝！3PARTVREADINGCOMPREHENSION[25MIN]Inthissectiontherearefourpassagesfollowedbyquestionsorunfinishedstatements,eachwithfoursuggestedanswersmarkedA,B,CandD.Choosetheonethatyouthinkisthebestanswer.MarkyouranswersonAnswerSheetTwo.TEXTADoyourealizethateverytimeyoutakeastep,thebonesinyourhiparesubjectedtoforcesbetweenfourandfivetimesyourbodyweight?Whenyouarerunning,thisforceisincreasedfurtherstill.Whathappensifthroughdiseaseahip-jointceasestobeabletoresistsuchforces?Formanyyearship-jointsandotherbodyjointshavebeenreplaceableeitherpartiallyorcompletely.Itisafterallasimpleballandsocketjoint;ithascertainloadsimposedonit;itneedsreliabilityoveradefinedlife;itmustcontainmaterialssuitablefortheworkingenvironment.Anyengineerwillrecognizetheseascharacteristicofatypicalengineeringproblem,whichdoctorsandengineershaveworkedtogethertosolve,inordertobringafreshleaseoflifetopeoplewhowouldotherwisebedisabled.Thistypifiesthewayinwhichengineersworktohelppeopleandcreateabetterqualityoflife.Thefactthatthiscountryhasthemostefficientagriculturalindustryintheworldisanothergoodexample.Mechanicalengineershaveworkedwithfarmersandbiologiststoproducefertilizers,machineryandharvestingsystems.Thisteamefforthasnowproducedcropsuniformlywaisthighorlesssothattheyarebettersuitedtomechanicalharvesting.Similaradvanceswithothercropshavereleasedpeoplefromhardandboringjobsformorecreativework,whilstmachinesharvestcropsmoreefficientlywithlesswaste.Providingmorefoodfortherapidlyincreasingpopulationisyetanotherroleforthemechanicalengineer.81.Accordingtothepassage,whenwouldmostweightbeimposedonhip-joints?A.Whenoneiswalking.B.Whenoneisrunning.C.Whenoneisstanding.D.Whenoneislyingdown.82.Engineersregardthereplacementofhip-jointsasa(n)____Problem.A.mechanicalB.medicalC.healthD.agricultural83.Accordingtothepassage,howdoengineerscontributetoincreasingefficiencyoftheagriculturalindustry?A.Byworkingwithfarmers.B.Byworkinginteams.C.Bygrowingcropsofthesameheight.D.Bymakingagriculturalmachinery.84.Accordingtothecontext,“Thisteameffort’”inParagraphTwor