3、hom,whose,what,which,连接副词when,where,why,how, 它们起连接作用,作句子成分,各有自己的意义。eg.Theteacheraskedthenewstudents which classhewasin. Iwonder where hegotsomuchmoney.【注意】1、由连接代、副词引导的宾语从句可以和“疑问词+不定式”结构转化。eg.Idon’tknowhowIshoulddowiththepresents. è Idon’tknowhowtodowiththepresents. 2、要注意区分判断由if、when引导