Unit 5 Discover Useful Structures 名词性从句讲义-2023-2024学年高中英语人教版（2019）选择性必修第一册

名词性从句 一．分类： 名词性从句 主语从句 宾语从句 表语从句 同位语从句 二．连接词 从属连词 词义 在从句中成分 能否省略 that 无 不做成分 宾从可省 whether 是否 不做成分 不能省 if 是否 不做成分 不能省 连接代词 词义 在从句中成分 能否省略 what(ever) (无论)什么 主，宾，表 不能 who(ever) （无论）谁 主 不能 whom(ever) （无论）谁 宾 不能 which(ever) （无论）哪一个 定 不能 whose 谁的 定 不能 连接副词 词义 在从句中成分 能否省略 when(ever) （无论）何时 状语 不能 where(ever) （无论）在哪 状语 不能 why 为什么 状语 不能 how （无论）如何 状语 不能 主语从句 语境领悟 1. That we need more money is obvious. 2. That you are so indifferent bothers me. 3. It’s evident that you have made a big mistake. 4. It’s generally considered that Yuan was a great agricultural scientist. 5. It is a pity that you missed the exciting football match. 6. Whether the work can be finished on time is doubtful. 7. It depends on the weather if/whether we will hold the party in the open air. 8. What you need is a good meal. 9. What the students wanted was only a long holiday. 10. Whoever breaks the rules should be punished. 11. Which film we will watch is not decided. 12. When he will come is not certain. 13. Why he didn’t come was unknown. 主语从句 1. that引导的主语从句（只起连接作用，不能省）  that从句作主语时，常用it作形式主语 句式① it is＋adj. ＋that从句 例： 句式② it is ＋n.＋that从句It’s a wonder that It’s no wonder that ... It’s a pity/shame that It’s a fact that It’s an honor that 句式③ it is＋过去分词＋that从句 It’s suggested/advised that It’s considered that It’s hoped that It’s believed that It’s estimated that It’s assumed that It’s said that It’s reported that It’s thought that It’s believed that 2. Whether/if引导的主语从句 · If引导主从不能位于句首 E.g. Whether you can succeed or not depends on your efforts. E.g. It is unknown whether/if he has agreed to my plan. 3. wh-类连词引导的主语从句 E.g. What you said is right. E.g. Who will win the game is difficult to guess. 主语从句的主谓一致 1． 单个主语从句作主语时，主句谓语动词用单数 E.g. Why he didn't come was unknown .不知道他为什么没来 2． 由2个或多个连接词引导的一个主语从句，主句谓语动词用单数 E.g. When and where he will go is not certain. 3．用and连接两个或两个以上的主语从句作主语时，主句谓语动词用复数 E.g. What he said and what he