IntroductionThisarticleisbasedontheexperienceofteachingextensivereadingclassesforsciencestudentsinourschool.Itdescribesacommonmodelforreadingclasses.Thismodelshowsthedisadvantagethatreaderstendtounderstandwhattheyreadmainlybywayoflisteningtotheteacher’sexplanation,butnotbyreadingforthemselves.Ithasgivenrisetotheparticularproblemofwhetherstudentsneedafullexplanationbeforeachievinggoodcomprehension.Thearticlesuggeststhatreadershavetoworkthemselvestoimprovetheirreadingabilityandskills.Sometechniquesforteachingareadingclassaresuggested.