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课件网) Book 6 Unit 3:Back to the past Grammar and usage The Revision of Predicative Clauses Learning objectives: 1.Understand the definition and function of predicative clauses 2.Choose proper conjunctions to introduce predicative clauses 3.Apply the predicative clauses to writing correctly What is the sentence structure S+Linking-v+Predicative(表语) That is why it’s called the present! S+Linking-v+Predicative Clause(表语从句) Yesterday is history. Tomorrow is a mystery. Today is a gift. 往日已成历史， 未来犹未可知， 唯有今日是珍贵的赐予 那便是为什么我们称它为礼物 总结： 思考： 表语从句的结构： 表语从句的构成: 表语从句是指_____, 紧跟在_____之后，对主语进行解释、说明，使主语的内容具体化。 从句在句子中充当表语 系动词 + That is why it’s called the present! 主语 系动词 引导词 简单句 + + 状态类：be 感官类：feel/look/sound/taste/smell 持续类：stand/remain/keep/stay 变化类：become/get/grow/turn/go/come/run/fall 似乎类：seem/appear 结果类：prove/turn out 是... ......起来 保持... 变得... 似乎、好像... 结果是...;证明是... 系动词有： 引导词 ___ ___ 在从句中不作成分 that / whether / as if, as though，because 无含义/ 是否 / 好像/和...一样 ___ ___ 在从句中作主语、宾语、表语、定语 what, who, whom, which, whatever, whoever, whomever,whichever whose ___ ___ 在从句中作状语 when, where, how, why 表语从句中不用if 从属连词 连接代词 连接副词 一、从属连词：that & whether & because等 1. The most important thing is that we finish the final task. 2. The question is whether we can finish it in such a short time. 3. The reason why he was late is that he got up late. 用法归纳： a. that引导表语从句时，只起_____作用，作/不作句子成分，有/没有意义。 b. whether引导表语从句时，只起_____作用，作/不作句子成分，通常翻译为“_____”。注意，引导表语从句时通常不用if。 连接 √ √ 是否 主语是reason时，表语从句不能用because, 只能用that。 c. 注意这个结构：The reason why ... is that ... 连接 √ 特殊用法： 用法归纳：表示_____(advice, suggestion, request, proposal, demand,order) 等名词后面的表语从句要用虚拟语气,即谓语动词用“should + 动词原形”,should可省略。 My advice is that you (should) think it over before you make a decision. My suggestion is that we all _____ (take) an active part in the coming sports meeting. 建议，要求，命令 (should) take 1)特定名词+系动词＋that+（should）do结构 2)because引导的表语从句常见于"This/That/It is/was because..." 句型中 e.g. He was sent to the hospital. That's because he was ill. That's because…强调 ；That's why… 强调 1) He failed the math exam. That’s _____he was too careless. 2) He was too careless. That’s _____ he failed the math exam. 特殊用法： because why e.g. He was ill. That's why he was sent to the hospital. 原因 结果 who / whom / whose / which / what等 二、连接代词： 连接代词在表语从句中可充当主语、宾语、表语或定语。依据“缺什么补什么”原则确定正确的连词。 所谓“缺什么补什么”是指从句与连词之间的关系。 如果句子中缺主语，指人用 ，指物用 。 如缺宾语，指人用 ，指物用 。 如缺定语用 或 。 who ... ...
