Unit 1 Science and Scientists Discover useful structures 表语从句课件-2023-2024学年高二英语人教版（2019）选择性必修第二册

选择性必修二 Unit 1 The Predicative Clauses Discover useful structures Teaching objectives: 1. Enable the students to master the usage of predicative in this unit. 2. Enable the students to use the predicative patterns flexibly. 3. Train the students to apply some skills by doing the relevant exercises. review 目录 CONTENTS 表语从句定义 表语从句引导词 巩固练习 表语从句定义 01 Part One 1. One theory was that bad air caused the disease. 2. Another theory was that cholera was caused by an infection from germs in food or water. 3. The truth was that the water from the Broad Street had been infected by waste. 画出下列句子中的表语从句 总结：在复合句中作____________的从句，叫作表语从句。表语从句接在__________________之后，对主语进行解释、说明，使主语的内容具体化。 表语 be动词或系动词 系动词有哪些？ 1. 状态类: be动词; keep,remain,stay, 2. 感官类: look,feel(摸起来),smell, sound,taste 3. 变化类: become,grow,turn,get,go,come,run,fall 4. 像类: seem, appear, 5. 终止类: turn out 结果是, prove 证明是 表语从句引导词 注：表语从句用陈述语气，且连接词均不可省略。 02 Part One In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was ______ bad air caused the disease. Another was ______ cholera was caused by an infection from germs in food or water. (Para. 2) What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed ______ the woman liked the water from the pump so much that she had it delivered to her house every day. (Para. 3) 一、that 引导的表语从句 that that that that ____ 意义，在表语从句中 ______ 成分,起______ 作用，________ 省略。 无 不充当 连接 不能 9 The question is _________ we can rely on him. He often tells lies. The question is _________ we can finish the task on time, for we have only three days left. 二、whether 引导的表语从句 whether whether 思考：可以用“if”来引导吗？ 连接词whether起 _____ 作用，意为“_________________”，在句中也不作任何成分（注意：if ______引导表语从句)。 连接 是否、究竟、到底 不能 10 三、what, which, who, whom, whose 等引导的表语从句 Tom is no longer _______ he used to be. The question is _______ of us should come first. (我们两个中的哪一个) The problem is ______ is really fit for th