Day8

健康保健

A

Whatwillpeopledieof100yearsfromnow?Ifyouthinkthatisasimplequestion,youhavenotbeenpayingattentiontotherevolutionthatistakingplaceinbio-technology(生物技术).Withthehelpofnewmedicine,thehumanbodywilllastaverylongtime.Deathwillcomemainlyfromaccidents,murderandwar.Today’sleadingkillers,suchasheartdisease,cancer,andagingitself,willbecomedistantmemories.

IndiscussionoftechnologicalchangestheInternetgetsmostoftheattentionthesedays.Butthechangeinmedicinecanbetherealtechnologicaleventofourtimes.Howlongcanhumanslive?Humanbrainswereknowntodecidethefinaldeath.Cells(细胞)arethebasicunitsofalllivingthings,anduntilrecently,scientistsweresurethatthelifeofcellscouldnotgomuchbeyond120yearsbecausethebasicmaterialsofcells,suchasthoseofbraincells,wouldnotlastforever.Buttheupperlimitswillbebrokenbynewmedicine.Sometimebetween2050and2100,medicinewillhaveadvancedtothepointatwhichevery10yearsorso,peoplewillbeabletotakemedicinetorepairtheirorgans(器官).Themedicine,madeupofthebasicbuildingmaterialsoflife,willbuildnewbraincells,heartcells,andsoon—inmuchthesamewayourbodiesmakenewskincellstotaketheplaceofoldones.

Itisexcitingtoimaginethattheadvanceintechnologymaybechangingthemostbasicconditionofhumanexistence,butmanytechnicalproblemsstillmustbecleareduponthewaytothiswonderfulfuture.

1.Accordingtothepassage,humandeathisnowmainlycausedby_______.

A.diseasesandaging?????????????B.accidentsandwar

C.accidentsandaging?????????????D.heartdiseaseandwar

2.Intheauthor’sopinion,today’smostimportantadvanceintechnologyliesin_______.

A.medicine?????????????B.theInternet

C.braincells?????????????D.humanorgans

3.Humansmaylivelongerinthefuturebecause_______.

A.heartdiseasewillbefarawayfr