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1、概要写作二1、阅读下面短文,根据其内容写一篇60词左右的内容概要。 Whilenumerousstudieshavelookedathowindividualhabitsmayextendorshortenaperson'slife,farfewerhavetriedtoquantifythebenefitsofpracticinganumberofhealthyhabitstogether,especiallyforpeoplewhobeginonlylaterinlife.Thiswasthefocusofa2007studypublishedinThe
2、AmericanJournalofMedicine.Thetrialexaminedwhethernewlyadoptingahealthylifestyleinmiddleagecouldstillproducesignificantbenefits,intermsoflowerriskofheartdisease. Agroupof15,792oldermenandwomenlivinginfourdifferentcommunitiesintheUnitedStatesweretrackedfrom1987to1998.Aged45to64years,
3、thesubjectswereexaminedfortheirweight,height,dietaryintake,smokinghabitsandexercise. Theresearchersnotedtheydidnotincludemoderatealcoholconsumption,becausethestudyaimedtoassesstheeffectofadoptingnewhealthyhabits,andbeginningtodrinkinmiddleageisnotwidelyrecommended. Interestingly,
4、atthebeginningofthestudyonly8.5%ofthesubjectswerepracticingallfourhealthyhabits.After6years,anadditional970peoplehadadoptedallfouroftheprimaryhabits.Themostcommonswitchwastobegineatingatleast5fruitsandvegetableseachday. Theresearchersexaminedthe‘‘successfulswitchers’’,andconcludedt
5、hatthesubjectsmostlikelytochangehabitsforthebetterwereolder,female,thosewithacollegeeducation,higherincomeandwithoutahistoryofhighbloodpressure. Afterfouradditionalyearsoffollow-upthehealthiestlifestyleswitchersenjoyeda40%reductionintheriskofdeathfromanycause,anda35%lowerchanceofhe
6、artattackorstrokes.2、阅读下面短文,根据其内容写一篇60词左右的内容概要。Thesurprisingreasonyoucan’tloseweight BobandBillareroommatesandgoodfriends.Theyeatthesamefood,havesimilarjobsandtheyrecentlystarteddoingthesamesportstogether,too.Theonlydifferencebetweenthem,itseems,issleepschedules:WhileBobgetsasolid7
7、to8hourseachnight,Billhasanirregularsleepscheduleanddoesn’tgetenoughsleep. CanyouguesswhytheirsharedexerciseandnutritionmethodissuccessfulforBobandnotforBill? Theonlydifferenceissleep.WhileBillandBobaremadeup,theresultsoftheircircumstancesarearen’t.Ifyouwantyourlifestylechangesto
8、reflectinthe
