2009年英语专业四级阅读解析版本.doc

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1、Readingcomprehension2009TEXTADoyourealizethateverytimeyoutakeastep,thebonesinyourhiparesubjectedtoforcesbetweenfourandfivetimesyourbodyweight?[81]Whenyouarerunning,thisforceisincreasedfurtherstill.Whathappensifthroughdiseaseahip-jointceasestobeabletoresistsuchforces

2、?Formanyyearship-jointsandotherbodyjointshavebeenreplaceableeitherpartiallyorcompletely.Itisafterallasimpleballandsocketjoint;ithascertainloadsimposedonit;itneedsreliabilityoveradefinedlife;itmustcontainmaterialssuitablefortheworkingenvironment.[82]Anyengineerwillre

3、cognizetheseascharacteristicofatypicalengineeringproblem,(工程师觉得这是一个典型的机械问题)whichdoctorsandengineershaveworkedtogethertosolve,inordertobringafreshlease（租约；租期；租赁物；租赁权）oflifetopeoplewhowouldotherwisebedisabled.Thistypifiesthewayinwhichengineersworktohelppeopleandcreate

4、abetterqualityoflife.Thefactthatthiscountryhasthemostefficientagriculturalindustryintheworldisanothergoodexample.[84]Mechanicalengineershaveworkedwithfarmersandbiologiststoproducefertilizers,machineryandharvestingsystems.Thisteamefforthasnowproducedcropsuniformlywai

5、sthighorlesssothattheyarebettersuitedto[83]mechanicalharvesting.Similaradvanceswithothercropshavereleasedpeoplefromhardandboringjobsformorecreativework,whilst[83]machinesharvestcropsmoreefficientlywithlesswaste.Providingmorefoodfortherapidlyincreasingpopulationisyet

6、anotherroleforthemechanicalengineer.81.Accordingtothepassage,whenwouldmostweightbeimposedonhip-joints?A.Whenoneiswalking.B.Whenoneisrunning.C.Whenoneisstanding.D.Whenoneislyingdown.解析：细节类。第一段开头“whenyouarerunning,thisforceisincreasedfurtherstill”当你跑步的时候，这种受力会加重。关键：读懂

7、题目。就算没有读懂，其他三项也没有提到，因此可以排除。“Doyourealizethateverytimeyoutakeastep,thebonesinyourhiparesubjectedtoforcesbetweenfourandfivetimesyourbodyweight?”你是否意识到自己每次迈步的时候，胯关节的受力是体重的四至五倍？。此句话的主干是“Doyourealizethat”that后面引导一宾语从句。宾语从句的主干是：thebonesinyourhiparesubjectedtoforces；“every

8、timeyoutakeastep”作时间状语从句，betweenfourandfivetimesyourbodyweight作后置定语，修饰前面的forces。*aresubjectedto易遭受Steelsurfacesaresubjectedtowettingbefore