If ,whether引导宾语从句时.ppt

宾语从句的用法;一、教学任务 复习宾语从句 二、重点和难点 1、由不同引导词引导的 宾语从句 2、宾语从句中时态的变化;不同引导词引导的宾语从句;1、that引导的从句（在非正式场合that可 以省略）;He knows (that) he should work hard.;2)他们认为他不在乎，是吗？？;2.由whether,if 引导。 ;a)在带to的不定式前;c)在动词后面的宾语从句时;以下三种情况，用if不用whether.;3)连接代词和连接副词引导的宾语从句;;宾语从句的语序;1.主句是一般现在时，从句根据实际情况使用任何时态。;The headmaster hopes everything ______ well. (go) Tom says that they ____________ (play) basketball at six o’clock yesterday evening. I hear they __________ (return) it already. He asked what they __________ at eight last night. (do) He said that they _________ members of the Party since 1948. (be) ;7. The teacher told his class that light _______ faster than sound. (travel) 8.I think you __________ about the relay race now. (talk) 9.I didn’t know whom the letters _________ from. (be) 10.The radio says it _________ cloudy tomorrow. (be)