Unit3宾语及表语从句.ppt

Noun Clauses;指出下列名词在句中所做的成分。 1.The world loves nature. 2.Knowledge is power . 3.We Chinese are peace-loving.;　名词性从句;宾语;什么叫名词性从句？;What we need is more time. What we need are more English dictionaries.;单句改错; I know him . I know who he is . ;1. 连词(引导词) 1) 当宾语从句是陈述句时(包括肯定句和 否定句), 连词由that引导, 因为that在从句 中不作任何成分, 也没有任何具体意思, 因此在口语或非正式文体中常省略。;宾语从句中的连接词that在以下三种情况 下不能省略： 当that 从句与另一个名词性从句并列作宾语时, that不能省； ?当that作介词宾语时, that不可省掉。用it做形式 宾语的宾语从句。 Everyone knew what happened and that she was worried. The reason lies in that she works harder than the others do. I think it necessary that you should read English aloud.;在主句为动词 be 加某些形容词（如sorry, sure, afraid, glad等）作表语时，后面所跟的省略 that 的从句也可算是宾语从句。;whether和if都可以引导宾语从句。 ? 当whether后紧跟or not时, 不用if. ? 介词后面的宾语从句不能用if. eg:I worry about whether I hurt her feelings. ?后接to do时只能用whether eg:I havent decided whether to leave. ;练一练: if / whether 1. I asked her __________ she had a bike. 2. We’re worried about ________ he is safe. 3. I don’t know ___________ he is well or not. 4. I don’t know ________ or not he is well. 5. I don’t know _______ to go.;2. 时态 1) 如果主句是现在的时态(包括一般现在时， 现在进行时, 现在完成时)从句的时态可根 据实际情况而定;2) 如果主句是过去的时态(包括一般过去时, 过去进行时), 那么从句的时态一定要用相 对应的过去的某种时态。;3) 当从句是客观真理, 定义, 公理, 定理 时用一般现在时。;4. The radio says it _______ cloudy tomorrow. (be) 5. The headmaster hopes everything ______ well. (go) 6. Tom says that they ____________ (play) basketball at six o’clock last evening. 7. I hear they ______________ (return) it already. 8. He said that they _________ members of the Party since 1948. (be);1) could / would是委婉语气, 而不是过去式, 因此宾语从句的时态根据实际情况用不同时态。;2) 如果主句的谓语动词是ask时, 连词不可能 是that; 如果主句的谓语动词是say时, 连词用that。;3) 否定的转移: 若主语谓语动词为think, consider, suppose, believe, expect, guess, imagine等, 其后的宾语从句若含有否定 意义, 一般要把否定词转移到主句谓语上, 从句谓语用肯定式。 I don’t think this dress fits you well. ;4) It 常可以放在动词think, find, consider, believe, f