what引导名词性从句的五种用法

what引导名词性从句用法What在从句中作成分（主语、宾语、表语），有实意。1.表示“……的东西或事情”：They’vedonatedwhattheyhavetohelpher.Youcanhavewhatyouwant.2.表示“……的人或的样子”：Heisnolongerwhathewas.Chinaisnolongerwhatitusedtobe.Heiswhatisgenerallycalledahero.WhomadeFredwhatheisnow?3.表示“……的数量或数目”：Ourincomeisnowdoublewhatitwastenyearsago.Thenumberofthestudentsinourschoolistentimeswhatitwasbeforeliberation.4.表示“……的时间”：Afterwhatseemedlikehours,hecameoutofhisbedroom.Theyounggirlwastoofrightenedtospeak,standingthereforwhatseemedlikecenturies.5.表示“……的地方”：ThisiswhattheycallSaltLakeCity.In1492,ColumbusreachedwhatisnowcalledAmerica.NoonereallyknowswhenthefirstpeoplearrivedinwhatweknowasCalifornia.