Unit 3 Grammar and usage 表语从句课件-2022-2023学年高中英语牛津译林版（2020）选择性必修第三册

Unit 3 Back to the past Grammar and usage The two policies are contradictory. This is a water pump. His job is to handle the problem. Lead-in What do the sentences have in common in their structures? predicative 表语是用来说明主语的身份、性质、品性、特征和状态的,表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。 The two policies are contradictory. This is a water pump. His job is to handle the problem. One theory was that bad air caused the disease. _ _ 主语 系动词 表语从句 总结: 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。用_语序。 结构:_。 从句在句子中充当表语 系动词 _ 主语+系动词+引导词+简单句 陈述 Linking Verbs 系动词 be动词 感官类 变化类 am, is, are, was, were look, sound, smell, taste, feel, seem 变得:become, get, turn, grow; 保持:keep, hold, stay, stand, remain; 可以接表语从句系动词有: ”似乎” seem, appear 引导词 从属连词: that, whether, as if, as though, because … 连接副词: when, where, how, why, …+(ever) 连接代词: what, who, whom, whose, which, …+ever Predicative clauses 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. (1)从属连词: that & whether 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 √ √ 连接 √ 是否 内容页 图表 面积图 (1)从属连词: as if / as though “似乎、好像” as if/ as though引导的表语从句 如果是事实,就用陈述语气; 如果与事实不符,就用虚拟语气(从句表示与现在事实相反,谓语动词用一般过去式;从句表示与过去事实相反,谓语动词用had +过去分词;从句表示将来的可能性不大,用would/might/could+动词原形)。 1. He looks as if he were a rich man. 2. He looked just as if he had looked ten years before. 3. It looks as if it might rain. (1)从属连词: because 1. He failed the math exam. That’s because he was too careless. 2. He was too careless. That’s why he failed the math exam. 3. The reason why he failed the math exam is that he was too careless. 用法归纳: This/That/It is/was because+原因… This/That/It is/was why+结果… The reason why+结果...is/was that+原因... (2) 连接代词: who, whom, whose, which, what, wh-ever 1. The problem is who could do the work. 2. The question is who/whom I should ask for advice. 3. My trouble is whose advice I should follow. 4. My top concern is which jo