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1、★阅读难点关键句200句（英文）★1.Wearingaseatbeltsaveslives;itreducesyourchanceofdeathorseriousinjurybymorethanhalf.2.Butitwillbethedriver’sresponsibilitytomakesurethatchildrenunder14donotrideinthefront unlesstheyare wearingaseatbeltofsomekind.3.However,youdonothavetowearas
2、eatbeltifyouarereversingyourvehicle;oryouaremakingalocaldeliveryor collectionusingaspecialvehicle;orifyouhaveavalidmedicalcertificatewhichexcusesyoufrom wearingit.4.Rememberyoumaybetakentocourtfornotdoingso,andyoumaybefinedifyoucannotproveto thecourtthat you
3、have beenexcusedfromwearingit.5.ProfessorTaijuMatsuzawawantedtofindoutwhyotherwisehealthyfarmersinnorthernJapan appearedtobelosingtheirabilitytothinkandreasonatarelativelyearlyage,andhowtheprocessofageingcouldhesloweddown.6.WithateamofcolleaguesatTokyoNational
4、University,hesetaboutmeasuringbrainvolumesofathousandpeopleof differentagesandvaryingoccupations.7.Computertechnologyenabledtheresearcherstoobtainprecisemeasurementsofthevolumeofthe frontandsidesections ofthebrain,whichrelatetointellect（智能）andemotion,anddeter
5、minethehumancharacter.8.Contractionoffrontandsidepartsascellsdieoffwasobservedinsomesubjectsintheirthirties,butitwasstillnotevidentinsomesixtyandseventy-year-olds.9.Thefindingsshowingeneraltermsthatcontractionofthebrainbeginssoonerinpeopleinthecountrythanintheto
6、wns.10.Whitecollarworkersdoingroutineworkingovernmentofficesare,however,aslikelytohaveshrinkingbrainsasthe farmworker,busdriverandshopassistant.11.Weknowthatyouhaveahighopinionofthekindoflearningtaughtinyourcolleges,andthatthecostsoflivingofouryoungmen,whilewit
7、hyou,wouldbeveryexpensivetoyou.12.Butyoumustknowthatdifferentnationshavedifferentwaysoflookingatthings,andyouwillthereforenotbeoffendedifourideasofthiskindofeducationhappennottobethesameasyours.13.Weare,however,notthelessobligedbyyourkindoffer,thoughwerefusetoac
8、ceptit;and,toshowourgratefulsense ofit,ifthegentlemenofVirginiawillsendusadozenoftheirsons,wewilltakecareoftheireducation,teachtheminallweknow,andmakemenofthem.14.In
