一篇英语阅读、、希望高手帮帮忙、答案尽可能简洁点.

Ifyoudon’tknowhowmuchwateryouneed,I’mnotsurprised.Differentadviceinrecentnewspapers,appearstobeagainsttheold“8-a-day”adviceweallgrewupwith.Isitnecessarytodrinkdowneightglassesofwaterdaily,oristhisalreadyoutofdate.

We’veheardforyearsthateightglassesofwaterdailyisnecessaryforapersontokeephealthy.Yourweightlossandhealthdependonit.Drinkeightglassesofwaterdailyandseeclearerskin,bettersleep,andimproveeyesight.We’rewarnedoflosingwaterwithoutatleasteightglasses.But,therearesomenewideasofexaminingyourdailydiet,includingwhatyoueat,aswellaswhatyoudrink.

Theansweris...youneedwhatyouneedIfit’ssummer,youneedmore.Ifyou’reexercising,youneedmore.Ifyou’rea“normal”inactiveperson,andnotexercisingmorethan15—20minutesdaily,youneednomorethanfourglassesofwaterdaily.Mostdrinkscanbecountedaspartofyourdailywaterintake.AlthoughtheWorldHealthOrganizationsuggeststhateightcups,theold“8-a-day”ruleisbasedonstudiesonpeopleunderdifficultsituations,includingsoldiersathighaltitudeandhospitalizedpatients,whatyouandIneedisdifferent.

1.Isthewritersurprisedifyoudon’tknowhowmuchwateryouneed?

2.Whatdoestheold“8-a-day”advicemean?

3.Whomistheold“8-a-day”rulefor?Giveanexample.

4.Howmuchwaterdoyoureallyneedaccordingtothewriter?

5.Whatisthearticlemainlyabout?