M3U1 The world of our senses 学案Grammar and usage第一部分：重点讲解名词性从句和名词一样，在句中可以担任主语、表语、宾语（动词宾语和介词宾语）和同位语。因此我们说名词性从句包括主语从句、表语从句、宾语从句和同位语从句。名词性从句必须用陈述句语序,也就是说, (疑问词) + 主语 + 谓语 + 其它.主语从句在复合句中作主语的句子称为主语从句, 从句作主语, 谓语动词用单数；通常由从属连词that, whether, 连接代词 who, whose, what, which, whatever（无论什么）, whoever（无论谁）, whichever（无论哪个）或连接副词 when, where, why, how 等引导。eg.1)* Whether we can reduce the use of energy is important. 2)* That pollution has become a serious problem in parts of the world is known to everyone.3) What is needed is greater safety.4) Whoever breaks the rules must be punished.5)* How life began remains a puzzle to us.6) It is said that paper was first made in China.7) It seems that he is older.8) It’s certain that the sports meeting will be delayed.9) It doesn’t matter if you have no time to do it.注意：1. 陈述句必须以 that 引导, 不能省略。2. 主语从句只能用 whether 引导，不能用 if 引导。3. 常用 it 作形式主语，代替真正的主语从句，但不能代替由 what 引导的主语从句。4. 常用于 It + be + adj. / n. / + that-clauseIt’s certain / clear / a pity /a fact/ common knowledge/ said / hoped …+ that / whether…It’s natural/ strange/ necessary/ important that… (should) …5.It doesn’t matter if 是固定句型。6. 句型：It is required/ suggested/ insisted/ ordered …that…(should)+ do…7.that 与 what 的区别：that 在从句中不充当任何成分，没有意思；what 在从句中充当主语或宾语，意思是：…（所）…的 Practice:他被选中了使我们很开心。用心 爱心 专心她是否有时间来还是个问题。谁将被派去那儿还没有定下来。我们所需要的是更多的时间。他去了哪儿没人知道。宾语从句在复合句中起宾语作用的从属句称为宾语从句。1. 作动词的宾语(1) 由 that 引导的宾语...
