Unit 1 Section Ⅲ Learning About Language-【金版新学案】2023-2024学年新教材高二英语选择性必修第二册同步课堂高效讲义配套课件（人教版）

Section Ⅲ　Learning About 　　　　　 Language 　 UNIT 1　SCIENCE AND SCIENTISTS 课 时 精 练 语 法 探 究 边 角 拾 遗 内 容 索 引 语　法　探　究 索引 教材示例　 分析下列加黑部分并体会它们的语法功能 1．(教材原句)One theory was that bad air caused the disease. 2．(教材原句)The other was that cholera was caused by an infection from germs in food or water. 3．(教材原句)The truth was that the water from the Broad Street pump had been infected by waste. 新知导学 表语从句 4．(教材原句)What John Snow showed to the world was how cholera could be overcome. 5．(教材原句)The exact places Snow marked on the map were where those who died had lived. 6．(教材原句)The problem was not about whether all our theories were equally good, but in deciding which/what/whose theory to depend upon. 我的发现 1．句1、句2和句3中______引导表语从句，不作______，无意义。 2．句4中_____引导表语从句，作______，意为“______”。 3．句5中_______引导表语从句，作______，意为“____________”。 4．句6中_________引导表语从句，不作______，意为“______”。 that 成分 how 状语 如何 where 状语 ……的地方 whether 成分 是否 一、从属连词引导表语从句 1．引导表语的从属连词主要包括that, whether, because, as if/as though等，在句中只起连接作用，不作成分，一般不省略。除that没有实际意义之外，其他连接词均有实际意义。 语法精讲 The question is whether they can cooperate with us.问题是他们是否能与我们合作。(whether 引导表语从句，意为“是否”) She looks as if she has been working hard for a long time.她看起来好像已经努力工作了很长时间。(as if 引导表语从句，意为“好像”) This is because, those who reported the news were expected to speak excellent English.这是因为，人们期望新闻播报员说着一口流利的英语。(because引导表语从句，意为“因为”) One advantage of solar energy is that it will never run out.太阳能的一个优点是永远不会枯竭。(that引导表语从句，无意义，只起连接作用) 2．三个易混句式 句式 用法 例句 This/That is why＋... why引导表语从句，意为“这/那就是……的原因”。 That’s why I want you to work there.那就是我想要你在那儿工作的原因。 This/That/It is because ＋... because引导表语从句，意为 “这/那是因为……”。 It’s just because he doesn’t know her.这仅仅是因为他不认识她。 The reason why... is that... why引导定语从句(修饰先行词reason)，that引导表语从句，意为“……的原因是……”。 The reason why he didn’t come is that it was raining heavily.他没有来的原因是(当时)雨下得很大。 (1)that 引导表语从句通常不省略。 (2)whether引导表语从句，意为“是否”；if一般不能引导表语从句。 (3)当主语是reason时，表语从句一般由that引导。常见句型：The reason (why) ... is that...　　 名师点津 巧学活用1 用适当的从属连词填空 (1)(2022·新高考Ⅱ卷)