Unit 2 Bridging Cultures Discover useful structures 名词性从句课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

Discovering useful structure 名词性从句 [观察例句] 1.What seemed strange before now appears quite normal to Xie Lei. 2. What surprised Xie Lei was that she found herself speaking up in class after just a few weeks. 3.It's important that Xie Lei keeps a balance between her studies and her social life. 4.That is why today over 40% of Californians speak Spanish as a first or second language. 5.Her tutor explained that she was supposed to read lots of information to help form a wise opinion of her own. 6.The fact that she seemed to develop normally was very encouraging. 皆为主从复合句 主语从句 主语从句。it为形式主语 表语从句 主语从句 表语从句 宾语从句 同位语从句 01 名词性从句定义 在复合句中起名词作用的从句叫名词性从句(Noun Clauses)。名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语等。 根据名词性从句在句中充当的不同成分,可以把名词性从句分为主语从句、宾语从句、表语从句和同位语从句。 3 从属连词 连接代词 连接副词 that(无词义单一宾语从句可省略,其他不能), whether, if (是否) as if/as though (好像) what, who, whom, whose, which, whoever, whatever, whichever when, where, how, why 有(无)词义, 但不做成分 有词义, 做主,宾,表,定语 有词义, 做状语成分 Conjunctions of Noun Clauses(引导名词性从句的关联词): 名词性从句几个常考考点 that / what 1. _ he wants is a book. 2. _ he wants to go there is obvious. 3. The result is _ we won the game. 4. This is _ we want to know. 5. Is _ he told us true ? 6. We should pay attention to _ the teacher is saying. 7. I have no doubt _ he will come. 8. I have no idea _ he did that afternoon. What That that what what what that what 考点一 连接词 6 that 和what 的选用 that 和 what 都可引导所有的名词性从句。但是,_除起连接作用外,还在名词性从句中充当成分,可作从句的_、_、_、或_。而_在名词性从句中不充当任何成分,只起_作用。what表示泛指的事物,常译为"什么"或"所……的事物",在含义上等于“名词+that” what 主语 宾语 表语 that 连接 总结归纳: 定语 1.他犯了那样一个错误真是遗憾。 _ is a pity . 2.他来不来不重要。 _doesn’t matter. It doesn’t matter whether… That he made such a mistake It is a pity that… 考点 2 :it作形式主语,形式宾语 it 作形式主语 Whether he will come or not it作形式主语,主语从句后移 有时为了使句子结构平衡,避免“头重脚轻”,常用it作形式主语,而把主语从句,即真正的主语,放在后面。 主语从句与形式主语it 基本句型结构 常用词语 It is+名词+that从句 常用的名词有a fact,a shame,a pity,no wonder等。 It is+形容词+that从句 常用的形容词有necessary,strange,important,possible等。当形容词为important,necessary等时,主语从句的谓语用“(should+)动词原形”。 It is+过去分词+th