简介:ThispaperpresentspracticalresearchonrepairmechanismanditsfourrepairtrajectoriesinFLclassroominteraction.ThisshowsthatitiseffectiveandefficientinassistingFLlearnerstodeveloptheircommunicativecompetenceandunderstandtheprocessoflanguageacquisition.RepairstrategiesthatareofgreatvaluetoFLteachersinFLclassroomteachingarealsoex-pounded.