Doyoualwayshavetoomuchworktodoeveryday?Maybeyoudo.Butweshouldknowthatpeopleneedtobeactivetobehealthy.1.____________Andthatisdangerousforourhealth.SittinginfrontoftheTVorthecomputerridinginthecarfore

　　Doyoualwayshavetoomuchworktodoeveryday?Maybeyoudo.Butweshouldknowthatpeopleneedtobeactivetobehealthy.1.____________ Andthatisdangerousforourhealth.SittinginfrontoftheTVorthecomputerridinginthecarforevenashorttriptothestoreandusingliftsinsteadofstairsallshowthatwedon'thaveenoughactivities.2.__________Ifwedon'titisasdangeroustoourhealthassmoking!

　　Addupyouractivitiesduringthedayatleasttenminuteseach.3.________Ifyouarealreadydoingsomelightactivitiesmoveuptomoreproperones.Alittleisgoodbutmoreisbetterifyouwanttoachievehealthbenefits.Scientistssay60minutesofphysicalactivityeverydayisenoughforyoutostayhealthy.4._______ Ifnecessaryyoumaycutdownt030minutesfourdaysaweek.

　　Youshouldknowphysicalactivitydoesn'thavetobeveryhardtoimproveyourhealth.5._______ Dayafterdayyouwillreachthegoal.Afterthreemonthsofregularphysicalactivitiesyouwillnoticeadifference!Peopleoftensaygettingstanedisthehardestpart.

　　根据材料内容，从下面五个选项中选出填入文中空缺处的最佳选项，使短文意思通顺，内容完整，并将其标号填写在下面题号后的横线上。

　　A.Startslowly…andbuildup.

　　B.Timeneededdependsonyou.

　　C.Weneedtohaveenoughphysicalexercise.

　　D.Buildphysicalactivitiesintoyourdailylife.

　　E.Ourmodernlifestylehasmadeussitallthetime.