III.阅读理解That“Mondaymorningfeeling”couldbeacrushingpaininthechestwhichleavesyousweatingandgaspingforbreath.RecentresearchfromGerman

　　III.阅读理解

　　That“Mondaymorningfeeling”couldbeacrushingpaininthechestwhichleavesyousweatingandgaspingforbreath.RecentresearchfromGermanyandItalyshowsthatheartattacksaremorecommononMondaymorningsanddoctorsblamethestressofreturningtoworkaftertheweekendbreak.

　　Theriskofhavingaheartattackonanygivendayshouldbeoneinsevenbutasix-yearstudyhelpedbyresearchersattheFreeUniversityofBerlinofmorethan2600Germansshowedthattheaveragepersonhada20percenthigherchanceofhavingaheartattackonaMondaythanonanyotherday.

　　WorkingGermansareparticularlynotprotectedagainstattackwitha33percenthigherriskatthebeginningoftheworkingweek.Non-workersbycomparisonappeartobenomoreatriskonaMondaythananyotherday.

　　Astudyof11000Italiansproved8a.m.onaMondaymorningasthemoststressfultimefortheheartandbothstudiesshowedthatSundayistheleaststressfuldaywithfewestheartattacksinbothcountries.

　　ThefindingcouldleadtoabetterunderstandingofwhatistheimmediatecauseofheartattacksaccordingtoDrStefanWillichoftheFreeUniversity.“Weknowalotaboutlong-termriskfactorssuchassmokingandcholesterol（胆固醇）butwedon’tknowwhatactuallycausesheartattackssowecan’tgiveclearadviceonhowtopreventthem”hesaid.

　　Mondaymorningshaveadoublehelpingofstressfortheworkingbodyasitmakesarapidchangefromsleeptoactivityandfromtherelaxingweekendtothepressuresofwork.

　　“Whenpeoplegetuptheirbloodpressureandheartrategoupandtherearehormonal（内分泌）changesintheirbodies”Willichexplained.“Allthesethingscanhaveanunfavorableeffectinthebloodsystemandincreasetheriskofaclot（血凝块）whichwillcauseaheartattack.”

　　“Whenpeoplereturntoworkafteraweekendoffthepaceoftheirlifechanges.Theyhaveahigherworkloadmorestressmoreangerandmorephysicalactivities”saidWillich.

　　51.Mondaymorningfeelingasthispassageshows________.

　　　A.isnotasseriousaspeoplethought

　　　B.isthefirstkillerinGermanyandItaly

　　　C.iscreatedbyresearchersinGermanyandItaly

　　　D.isharmfultoworkingpeopleindevelopedcountries

　　52.T