简介:Testwashbackhasattractedagooddealofattentionfromresearchersfrommanycountriesintheworldandconsiderableresultshavebeenfound.Bystudyingformerresearches,thispaperreviewsthedefinitionofwashback,relevantconcept,theories,andthemechanismofwashbacksystematically.Itishopedthatthispapercanenrichanddeepenthedevelopmentoflanguagetestingtheories.
简介:TheresearchesonCriticalPeriodHypothesis(CPH)aimstoexplaintheimportanceoftheagefactorintheprocessoflearningasecondlanguage.Inthisessay,acriticalreviewofthetheoreticalissuesandempiricalresearchontheCPHwillspreadout.Meanwhile,thediscussionofimplicationandlimitationoftheCPHresearchwillbeconcernedaswell.