高三复习名词性从句注意事项.ppt

The statement of Nominal Clauses Liuba Middle School MengWei whether和if都可以引导宾语从句 1.当whether后紧跟or/or not时,不用if. I don’t know whether I will stay or not. * 2.介词后面的宾语从句不能用if. Something should be paid attention to I don’t know whether or not she’ll like it. Everything depends on whether it is fine tomorrow. I worry about whether I hurt her feelings. 3. 复合不定式只能用whether. 告诉我 是去是留 4.习惯上作discuss的宾从只用whether. 但: 宾语从句否定时常用if引导. 他问你是否去见他 We discussed whether we should hold a meeting Tell us whether to go or stay here. He asked if you would not go and see him. 我们讨论了是否要召开一个会议 以it作形式主语，把主语从句后置的常用句型有： 1. It+be+形容词+that从句 certain \ clear important necessary probable possible It is/was that – clause （1）她会考好是肯定的了 It is certain that she will do well in her exam. （2）他告诉我一切是可能的 It is probable that he told me everything. 2、It + be + 名词词组 + that从句 pity shame duty (1) It is a pity that we can’t go. (2) It is no surprise that our team should have won the game. It is / was a that – clause 3、It + be + 过去分词 + that从句 said reported thought hope d believed known that – clause It is 4、It + seem, happen, appear等不及物 动词 + that从句。 (1) 看起来爱丽丝根本不能去舞会 It seems that Alice is not coming to the party at all. It happened that I was out that day. (2) 碰巧我那天外出 表语从句 在句中作表语的句子叫表语从句。 引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if, because 引导。其基本结构为： 主语 + 系动词 + that从句 . This is because he missed the train 这是因为他没赶上火车 当主语为it, that, this时, because 可以引导 句子, 出现在表语的位置上. 否则, because 应引导原因状语从句. It is because we are closer to the sun in summer. 这是因为我们夏天离太阳近 This is because he broke the law. 这是因为他违法了 引导表从