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

Unit 1 Science and Scientists 表语从句 微信公众号:PPT模板不求人 1 Learning objectives: Learn how to identify predicative clauses. Master the use of the predicative clauses. Practice using and translating the predicative clauses. REVIEW His diarrhea seems severe. The two policies are contradictory. This is a water pump. His job is to handle the problem. 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。 His diarrhea seems severe. The two policies are contradictory. This is a water pump. His job is to handle the problem. two contradictory theories Theory one: __________________ caused by bad air Theory two: __________________ 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______________________, 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 What is predicative clause? 一、可以接表语从句系动词有： Linking Verbs 系动词 be动词 am, is, are 感官类 look，sound，smell，taste，feel， 变化类 变得：become、get、turn、grow； 保持：keep、hold、stay、 stand; 仍然：remain 似乎：seem、appear； 证明：prove、turn out; 1. 从属连词that引导的表语从句 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_______作用，______(有/无)词义，______(是/否)充当句子成分，通常________(能/不能)省略。 连接 无 不 不能 2.从属连词whether 引导的表语从句 The question is if we can finish our work. The question is whether the film is worth watching. The doctor’s doubt is whether she will survive. whether起 _________ 作用，意为“_______”，在句中_________(是/否)作成分。 (注意：if ______(能/不能)引导表语从句)。 连接 是否 不 不能 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. My belief is ______________I will succeed by working hard. whether whether that 3.从属连词as if/ as though/ because 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. It seems 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________(是/否)充当成分，意为“______________”;若表语从句所述的是非真实的情况，从句用_________(主句一般现在时，从句用_________时；主句过去式，从句___________时)；because在从句中_______(是/否)充当成分，意为“______________” 不 似乎；好像 虚拟语气 一般过去 过去完成 不 因为 4.连接代词who、whom、whose、what、which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、whose、what/whatever、which/whichever在从句中作______、_________、___________、_________等。 主语 宾语 表语 定语 1) China is no longer _______ she used to be. 2) The question is _______ of us should come first. (我们两个中的哪一个) 3) The problem is ______ is really fit for the hard job. 4) The important thing is _______name should be put on the top of the list. 5）You can be __________ you want to be. what which who whose whoever 5. 连接副词when, where, how, why引导的表语从句 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________作用,还在从句中充当_______, _______，______，_______状语，________(能/不能)省略。 连接 方式 地点 原因 时间 不能 This is ______ Sara was late for the meeting. (She missed the early bus.) This is _____ they overcome the difficulties. My strongest memory is ______ I attended an American wedding as a child. why how when when where why how what/whatever which/whichever who/whoever whom,whose... that,whether as if/as though because Summary 表语从句的引导词 从属连词 在从句中不作句子成分 连接代词 在从句中作主语、宾语、表语、定语 连接副词 在从句中作状语 1) The reason why he is late for school is ________ he missed the bus. 2) Why we decided to put off the football match is__ the weather was too bad. 3) I think that’s _____ he was so angry. 4) I think it is ________ you are doing too much. 5) The reason ______ he was so late is _____ it was raining hard. that why because why that that 注意1：当主句的主语是 the reason或 why 引导的 主语从句时常用 that 来引导表语从句，而不用 because。 That / This / It + is / was +why + 结果(原因 / 结果) 表示“这 / 那就是……的原因” That / This / It + is / was + because + 原因(原因 / 结果) 表示“这 / 那就是因为……” The reason why … is that … 中 why 是引导 定语从句，that 引导的是 表语从句，表示“……的原因是……”。 1) My suggestion is that we ____________ (go) and help him. 2) My advice is that we ____________ (get) there by train. (should) go (should) get 注意2：当主句的主语是表示建议（suggestion, advice）、命令（order, command）、要求（request, desire, requirement, demand, proposal）等的名词时，表语从句要用虚拟语气，即（should）+ 动词原形。 1. It sounds as if someone ___ knocking at the door. 2. Tom likes to talk big as if he ______ an important person. (对现在的虚拟，用一般过去时，be动词用were) 3. He opens his mouth as if he ________ say something. (对将来的虚拟，用would/could/might+do) 4. He talked about Rome as if he ___________ there. (对过去的虚拟，用had done) (与事实相符) is were would had been 辨析3: as if/as though 引导从句的虚拟语气： 若跟现在事实不符：过去式（be动词用were） 若跟将来事实不符：would/could+动词原形 若跟过去事实不符：had done 1. This is________ I want. 2. My English is limited. This is_______I hate reading English books. 3. The village is_________I used to spend my holiday 4. He is my favorite singer. It is_________ I really love the way he behaves. 5. The trouble is _______we are short of funds. 6. My problem is________coat is suitable for me. 7. I'd like to start my own business---that's________ I want to do if I had the money. 8. What I want to know is______will support me. 9. He looked _________he were ill. 10. Please put the medicine on the top of the shelf. It’s _______our children can’t reach it. 11. The problem is ________we can find to finish this task. what why where because that which what who as if where who https://www.ypppt.com/ 22 【高考真题我不怕】 1.［2013·安徽］From space, the earth looks blue. This is_________ about seventy-one percent of its surface is covered by water. 2.［2014·四川］Grandma pointed to the hospital and said, "That’s __________I was born．" 3.［2014·北京］The best moment for the football star was_________ he scored the winning goal. 4. [2018·江苏] By boat is the only way to get here, which is we arrived. 5.[2018·北京] This is my father has taught me —to always face difficulties and hope for the best. 6. [2021·新高考1卷] The amazing thing about the spring is ________ the colder the temperature gets, the hotter the spring! because where when how what that Thank You ! where as if/as though why that whether because what that $$