Unit 1 Science and Scientists Discover Useful Structures 表语从句课件-2024-2025学年高中英语人教版（2019）选择性必修第二册

表语从句 选择性必修二Unit1 Science and Scientists Learning objectives: In this class we will: Learn how to identify predicative clauses. Master the use of the predicative clauses. Practice using and translating the predicative clauses. 一个主谓关系/五种基本句型 并列连词连接的两个简单句 并列连词：and/but/so/yet/ not only..but also…/... REVIEW 句子类型 简单句 并列句 复合句 形容词性从句 名词性从句 副词性从句 定语从句 主语从句 宾语从句 表语从句 同位语从句 状语从句 主句 从句 { { 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、形容词、数词、副词、介词短语、动词过去 分词、动词的ing形式、不定式、和从句等来充当。 What is predicative? > His diarrhoea seems severe. > The two policies are contradictory. > This is a water pump. > His job is to handle the problem. What is predicative clause? two contradictory theories Theory one: Theory two: caused by bad air caused by germs One theory was that bad air caused the disease. 主语 系动词 表语从句 表语从句是指从句在句子中充当表语 ,紧跟在系 动 词之后， 对主语进行解释、说明，使主语的内容具体化。 在从句中不作成分； that/whether/as if/as though/ because 在从句中作主语、宾语、表语、定语 what/whatever/which/whichever/who whoever/whom/whose 在从句中作状语 when/where/how/why 从属连词 连接代词 连接副词 引导词分类 表语从句引导词 My advice is that we should get there by train. The reason is that they never give up. One idea is that fish is the best brain food. that 仅起 连接 作 用， 无 (有/无)词义， 不 (是/否)充当句子成分，通常 不能 (能/不能)省 略 。 1 .从属连词that引导的表语从句 Thequestion is if we can finish our work. The question is whether the film is worth watching. Thedoctor'sdoubtis whether she will survive. whether起连 接 作用，意为“是否 ”,在句中 不 (是/否)作成分。 (注意：if 不 能_ (能/不能)引导表语从句)。 1.从属连词whether 引导的表语从句 It sounds as if/though someone is knocking at the door. She looked as if she had been hit by lightning. Itseems as if she were mad. He did not see the film last night.That is because he had seen it before. as if/though在从句中.不 (是/否)充当成分，意为 “ 似 乎 ： 好 像 ";若表语从句所述的是非真实的情况，从句用 虚拟语气(主句一般现在时，从句用一般过去时；主句过去式， 从 句过 去 完 成 时); because 在从句中 不 (是/否)充当成 分，意为“ 因 为 99 1.从属连词as if/as though/because引导的表语 从 句 Motivation is what you need most to do a good job. The problem is who is really fit for the hard job. What I want to know is whose words are helpful. 连接代词who/whoever、whom/whomever、wh ose、 2.连接代词who 、whom 、whose 、what 、which引导 的表语从句 what/whatever、which/whichever在从句中作 主语 宾 语 表 语 定 语 等。 The problem is how we can find him. That is where I first met her. That's why I object to the plan. Thanksgiving is when people celebrate the harvest. 连接副词在句中起 连接 作用，还在从句中充当 方式 9 地点 , 原 因 9 时间 状 语 ， 不能 (能/不能)省略。 3.连接副词when,where,how,why 引导的表语从句 Practice 单句语法填空 1.The energy is what makes the cells able to do their work. 2.What he really means is. that he disagrees with us. 3.Your dictionary is still where you put it yesterday. 4.He looks as if/as though he is ill from his pale face. 5.I drove to Zhuhai last week and that was why I had a few days off. 6.The saddest aspect of life right now is that science gathers knowledge faste than society gathers wisdom. 7.The question discussed at the meeting was whether it was worth trying. 8.I'm a bit sleepy now;it's because I was up all night. Practice-translation 1.The reason is that the music can inspire me to move on when I am in difficulty. 理由是这首音乐在我遇到困难时会激励我继续前进。 2.The problem is_ whether the air pollution can be controlled 问题是空气污染能否控制住。 3.The thick smog covered the whole city.It was as if/as though a black blanket had been thrown over it 厚重的烟雾笼罩着整座城市，好像一个黑色的毯子扔到了它的上面。 4.He failed.That is. because he didn't work hard 他失败了，那是因为他没有努力工作。 ● Thank yOU $$