请阅读短文，完成第小题。 Wefindthatbrightchildrenarerarelyheldbackbymixed-abilityteaching.Onthecontrary,boththeirknowledgeandexperienceareenriched.Wefeelthattherearemanydisadvantagesinstreaming(把...按能力分班)pupils.Itdoesnottakeintoaccountthefactthatchildrendevelopatdifferentrates.Itcanhaveabadeffectonboththebrightandthenot-so-brightchild.Afterall,itcanbequitediscouragingtobeatthebottomofthetopgrade! Besides,itisratherunrealtogradepeoplejustaccordingtotheirintellectualability.Thisisonlyoneaspectoftheirtotalpersonality.Weareconcernedtodeveloptheabilitiesofallourpupilstothefull,notjusttheiracademicability.Wealsovaluepersonalqualitiesandsocialskillsandwefindthatmixed-abilityteachingcontributestoalltheseaspectsoflearning. Inourclassrooms,weworkinvariousways.Thepupilsoftenworkingroups:thisgivesthemtheopportunitytolearntocooperate,toshare,andtodeveloptheirleadershipskills.Theyalsolearnhowtocopewithpersonalproblemsaswellaslearninghowtothink,tomakedecisions,toanalyzeandevaluate,andtocommunicateeffectively.Thepupilslearnfromeachotheraswellasfromtheteacher. Sometimesthepupilsworkinpairs;sometimestheyworkonindividualtasksandassignments,andtheycandothisattheirownspeed.Theyalsohavesomeformalclassteachingwhenthisisappropriate.Weencourageourpupilstousethelibrary,andweteachthemtheskillstheyneedinordertodothisefficiently.Anadvancedpupilcandoadvancedwork;itdoesnotmatterwhatagethechildis.Weexpectourpupilstodotheirbest,nottheirleast,andwegivethemeveryencouragementtoattainthisgoal. Thewriter'spurposeinwritingthispassageisto 查看材料
A.argue for teaching bright and not-so-bright pupils in the same class B.recommend pair work and group work for classroom activities C.offer advice on the proper use of the library D.emphasize the importance of appropriate formal classroom teaching正确答案D
