宾语从句whether与if的用法课件

宾语从句的定义•置于动词、介词等词性后面起宾语作用的从句叫宾语从句。引导词whether与if•当宾语从句是一般疑问句时，由连词whether或if引导，引导词whether/if的意义为“是否”，在从句中不作成分，不能省略。•e.g.Lilywantedtoknowif/whetherhergrandmalikedthehandbag.44whether与if的区别5whether引导的宾语从句可以放句首WhethertheywilljoininthepicnicIdon'tcare.61.Iwonder_________we'llfinishthetaskontime.2.Iwanttoknow________it'sgoodnewsornot.3.Wearetalkingabout________weadmitstudentsintoourclub.Exerciseswhether/ifwhetherwhether71.介词后的宾语从句用whether2.whether引导的宾语从句可以与ornot连用3.whether引导的宾语从句可以放句首4.不定式前用whetherSummary8HomeworkDotheexercisesinWorkbookPeriod3