【weallknowthatitisimportanttoprotectourteethWeallknowthatitisimportanttoprotect(保护)ourteeth.We’dbetternoteattoomanycandies.We’dbetterbrushourteetheveryday.Anewsurvey(调查)inAmericaalsoshowsthatifw】

　　weallknowthatitisimportanttoprotectourteeth

　　Weallknowthatitisimportanttoprotect(保护)ourteeth.We’dbetternoteattoomanycandies.We’dbetterbrushourteetheveryday.Anewsurvey(调查)inAmericaalsoshowsthatifwedrinktoomanysodas(碳酸饮料),ourteethwillalsobebad.

　　InAmerica,itispopulartodrinksodas.About90%youngpeoplehavesodaseveryday.Mostofthemhavemorethanthreeglassesofsodaseveryday.About30%ofthemhavebadteeth.Whentheyeatfastfood,orwhenarethirty,theydrinksodasinsteadof(代替)water.Butthesodasaresweet,andthesweetthingscanchangeintosour(碳酸)things,andthesourthingscanmaketheteethbad.TheAmericanscientistssaythatsodasarebadforteeth.Itisnotgoodtodrinksodasespeciallyfortheyoungpeople.

　　()64.Ifyou,yourteethwillbebad.

　　A.eattoomanycandiesB.don’tbrushyourteeth

　　C.drinktoomanysodasD.alloftheabove(以上所有)

　　()65.Aboutyoungpeopledon’thavesodaseveryday.

　　A.10%B.30%C.70%D.90%

　　()66.Accordingtothepassage,canmaketheteethbad.

　　A.thesaltythingsB.thesourthings

　　C.thehotthingsD.thecoldthings

　　()67.Thewriterwantstotellusto

　　A.eatmorefastfoodB.drinkwatereveryday

　　C.drinksodaseverydayD.protectoueteeth