英语翻译Wehaveknownforalongtimethatflowersofdifferentplantsopenandcloseatdifferenttimeofday.Thisissofamiliarthatthereseemstobenoneedtoaskthereasonforit.Yetnoonereallyunderstandswhyflowersopenandcloseli

　　英语翻译

　　Wehaveknownforalongtimethatflowersofdifferentplantsopenandcloseatdifferenttimeofday.Thisissofamiliarthatthereseemstobenoneedtoaskthereasonforit.Yetnoonereallyunderstandswhyflowersopenandcloselikethisatparticulartimes.Theprocessisnotassimpleaswemightthink,asrecentexperimentshaveshown.Inonestudy,flowerswerekeptinconstant(连续的)darkness.Wemightexpectthattheflowers,withoutanyinformationaboutthetimeofday,didnotopenastheynormallydo.Infact,theycontinuedtoopenattheirusualtime.Thissuggeststhattheyhavesomemysterious(神秘的)wayofknowingthetime.Theirsenseoftimedoesnotdependoninformationfromtheoutsideworld;itis,sotospeak,insidethem,akindof“innerclock”.

　　Thisdiscovery(发现)maynotseemtobeveryimportant.However,itwaslaterfoundthatnotjustplantsbutalsoanimals—includingman—havethis“innerclock”whichcontrolstheworkingoftheirbodiesandinfluences(影响)theiractivities.Men,then,arealsoinfluencedbythismysteriouspower.Whetherwewishitornot,itaffectssuchthingsinourlifeasourneedforsleep,ourneedforfood.

　　Inthepast,thisdidnotmatterverymuchbecausepeoplelivedinnaturalcondition.Inthemodernworld,thingsaredifferent;nowtherearespacemen,airplanepilotsand,inordinarylife,alotofpeoplewhohavetoworkatnight.Itwouldbeveryuseful,then,toknowmoreaboutthe“innerclock”.Suchordinarythingsasflowersmighthelpusunderstandmoreaboutourselves.