请阅读Passage1,完成第小题。 Passage1 Inrecentyears,however,societyhascometounderstandthelimitationsofschoolsthatmerelysortandrankstudents.Wehavediscoveredthatstudentsinthebottomone-thirdtoone-halfoftherankorder-plusallwhodropoutbeforebeingranked-failtodevelopthefoundationalreading,writing,andmathematicalproficienciesneededtosurvivein,letalonecontributeto,anincreasinglytechnicallycomplexandethnicallydiverseculture.Sotoday,inaskingschoolstoleavenochildbehind,societyisaskingthateducatorsraiseupthebottomoftherank-.orderdistributiontoaspecifiedlevelofcompetence.Wecallthoseexpectationsour??"academicachievementstandards".Everystatehasthem,and,asamatterofpublicpolicy,schoolsaretobeheldaccountableformakingsurethatallstudentsmeetthem. ?Tobeclear,themissionofsortinghasnotbeeneliminatedfromtheschoolingprocess.Fortheforeseeablefuture,studentswillstillberankedattheendofhighschool.However,societynowdictatesthatsuchacelebrationofdifferencesmamountlearnedmuststartatacertainminimumlevelofachievementforall. ??Theimplicationsofthischangeinmissionfortheroleofassessmentareprofound.Assessmentandgradingproceduresdesignedtopermitonlyafewstudentstosucceed(thoseatthetopoftherank-orderdistribution)mustnowberevisedtopermitthepossibilitythatallstudentscouldsucceedatsomeappropriatelevel.Furthermore,proceduresthatpermitted??(perhapsevenencouraged)somestudentstogiveupinhopelessnessandtostoptryingmustnowbereplacedbyothersthatpromotehopeandcontinuouseffort.Inshort,theentireemotionalenvironmentsurroundingtheprospectofbeingevaluatedmustchange,especiallyforperenniallowachievers. ??Thestudents'missionisnolongermerelytobeatotherstudentsintheachievementrace.Atleastpartoftheirgoalmustbetobecomecompetent.Teachersmustbelievethatallstudentscanachieveacertainlevelofacademicsuccess,mustbringalloftheirstudentstobelievethisofthemselves,must?accommodate?thefactthatstudentslearnatdifferentratesbymakinguseofdifferentiatedinstruction,andmustguideallstudentstowardtheattainmentofstandards. ??Thedrivingdynamicforceforstudentscannotmerelybecompetitionforanartificialscarcityofsuccess.Becauseallstudentscanandmustsucceedinmeetingstandards,cooperationandcollaborationmustcomeintoplay.Thedrivingforcesmustbeconfidence,optimism,andpersistence-forall,notjustforsome.Allstudentsmustcometobelievethattheycansucceedatlearningiftheytry.Theymusthavecontinuousaccesstoevidenceofwhattheybelievetobecredibleacademicsuccess,howeversmall.Thisnewunderstandinghasspawnedincreasedinterestinformativeassessmentinrecentyears. Whatdothe"academicachievementstandards"inParagraph1referto?
A.The driving dynamic forces for all students who need to survive in society. B.Confidence, optimism, and persistence that students need in order to succeed. C.Differentiated levels of competence specified for students with different abilities. D.The missions of students who want to beat others in their achievement race in school.正确答案C
