Unit 1 Science and Scientists Discover useful structures 表语从句 课件-2025-2026学年高中英语人教版选择性必修第二册

Unit 1 Science and Scientists The Predicative Clauses 01 2 His diarrhea seems severe. He finally became a successful scientist. His job is to handle the problem. Snow’s finding was that the pump water carried cholera germs. “主系表” 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、非谓语、介词短语、形容词和从句等来充当。 在复合句中，位于_________之后，充当________的名词性从句称作表语从句。 表语 系动词 可以接表语从句的系动词有: be动词: am is are; 感官动词：look，feel, sound, taste, smell; 表象系动词：seem（仿佛）, appear（似乎） 持续性动词：remain, keep, stay; 变化系动词：become, get, grow, turn, go, come, run, fall; 终止系动词：prove（证明是）, turn out（结果是） 表语从句的概念 4 ①What John Snow showed to the world was how cholera could be overcome. ②The exact places Snow marked on the map were where all those who died had lived. ③Snow’s finding was that the pump water carried cholera germs. 表语从句 系动词 表语从句 系动词 表语从句 表语从句 系动词 5 表语从句引导词的选择 What I can see is _____ the police are trained to defend themselves against attacks. The police are trained to defend themselves against attacks. what I can see that that不做成分,没有意义，连接作用，不能省略 表语从句引导词的选择 The question is ___________ they could handle the problem. They could handle the problem. the question whether whether不做成分,但有意义，表“是否” 表语从句引导词的选择 What makes us curious is ______ led to EDG's success. EDG achieved success in the match. what 做主语/宾语/表语，表“什么”，不能省略。 表语从句引导词的选择 The question is ______ was suspected of stealing the money. They suspected someone of stealing the money. who 做主语/宾语/表语），表“谁”，不能省略。 表语从句引导词的选择 The most important thing is ________ telescope can find the suitable planet to live in. The telescope can find the suitable planet to live in. whose/which 做定语，表“…的”，不能省略。 表语从句引导词的选择 The question is ______ she can transform her son into a strong-willed boy. She can transform her son into a strong-willed boy. the question how 做状语，表“怎样”，不能省略。 表语从句引导词的选择 That is ________ the jet took off. The jet took off. where 做状语，表“在哪里”，不能省略。 表语从句引导词的选择 What the authority wants to know is _______ the fire broke out. The fire broke out. when/why 做成分，表“什么时候”，不能省略。 表语从句引导词的选择 He failed in the exam. That's _______ he felt frustrated. He felt frustrated. He failed in the exam. why 做状语，表“为什么”，不能省略。 表语从句引导词的选择 He felt frustrated. That's __________he failed in the exam. He felt frustrated. He failed in the exam. because 常见结构：This/That/It is/was because···· 做状语，表“因为”，不能省略。 *表示原因的句型： That’s/It’s/This’s because… （这是因为…） That’s/It’s/This’s why… (这是为什么…) The reason why…is that… (…的原因是… 1. He was sent to the hospital. That’s he was ill. 2. He was ill. That’s he was sent to the hospital. 3. The reason he was sent to the hospital is he was ill. 4. Why we decided to put off the football match is ________ the weather was too bad. why because why that 当主句的主语是 _____________ 或 why 引导的 __________时常用 ______ 来引导表语从句，而不用 because。 the reason 主语从句 that that 表语从句引导词的选择 Dark clouds are gathering. It seems ________ it is going to rain. as if/as though 看起来好像要下雨了。 意为“仿佛，好像”与事实相符，用正常的陈述语气。 表语从句引导词的选择 He looked ________ he ________(see) a ghost. as if 他看起来好像见鬼了一样。 意为“仿佛，好像”， 与过去事实不符，表示对过去的虚拟， 从句用过去完成式。 had seen 注意：as if/as though引导的表语从句如果是事实，就用陈述语气；如果与事实不符或可能性很小，就用虚拟语气。 1. It sounds as if someone ____________ （knock） at the door. (与事实相符) 2. Our teacher treats him as if he ________(be) her own children. (对现在的虚拟，从句用一般过去时，be动词用were) 3. He talks as if he _________________ (become) a superhero. (对将来的虚拟，从句用would/could/might+do 4. He talked about Rome as if he ___________ (be) there. (对过去的虚拟，从句用had done is knocking were would become had been 1. 如果引出表语从句的名词是一些表示“要求、命令、建议、坚持“之类的词如advice, suggestion, proposal, order, plan, idea, desire等, 那么从句中的动词通常用(should)+动词原形。 1. My suggestion is that we all ___________ (take) an active part in the coming sports meeting. 2. His proposal was that the work _________________ (finish) in five hours. (should) be finished (should) take Attention “姚明贱贱”，从句用虚拟语气，即用动词原形 Practice One of the most exciting moments in my life was_________ I won first place in the singing competition. Now, the only problem is_______________________ we can collect enough money for the project. One advantage of solar energy is_________it will never run out. That’s______________ you are wrong. You forgot Step Three. She looks so happy. That’s ___________ she has won the competition. He acted as though he_______________(know) nothing about it. when whether/how/when that where/why because had known 7. This is ____________ I worked with my parents one year ago. * This is the place in ___________ I worked with my parents one year ago. 8. The reason why I fell asleep so quickly is___________ I was tired. 9. The point at issue is_____________ we attend the meeting. 10. Is that ___________you don't want to go home? 11. It seems as if it _________(be) spring already. 12. His desire is that he_______________________ (travel) in space in Shenzhou X. * He desired __________________(travel) in space in Shenzhou X. were where which that whether why (should)travel to travel (2018 • 北京卷) Without his support, we couldn't be____ we are now. how B. when C. where D. why 补充练习册：The little girl who got lost decided to remain __________she was and wait for her mother. 2.(2018 • 北京卷）This is_____ my father has taught me —always to face difficulties and hope for the best. how B. which C. that D. what 3. (2018 • 江苏卷）By boat is the only way to get here, which is_______ we arrived. A. where C. why B. when D. how Practice where 23 The amazing thing about the spring is _______the colder the temperature gets, the hotter the spring! (2021 新高考全国卷,语法填空) The good news is ________it‘s simple to learn and can be worth the effort. （2020全国卷，七选五） This is ____________decorating with plants, fruits and flowers carries special significance. (2020 全国I，语法填空) Making a full-length clay (黏土) figure would not exhaust my strength-and that is __________I intend to do! (2020 天津，阅读理解 B) that that why what Practice The United Nations Educational, Scientific and Cultural Organization (UNESCO)inscribed（登记，注册） Spring Festival on the Representative List of the Intangible（无形的） Cultural Heritage of Humanity on December 4, 2024. 1.______ a signature part of Chinese culture, the Spring Festival, also called Chinese New Year, is one of the 2._______________(important) festivals practiced in China and around the world. UNESCO highlighted that the Spring Festival, 3.___________(mark) the start of the traditional Chinese Lunar New Year, involves various social practices, including prayers for good fortune and family reunions. It also features 4.____________(activity) planned by elders and festive public events 5. ___________(organize) by communities. According to UNESCO's documentation, the traditional knowledge and customs associated with the Spring Festival 6.____________(pass) down within families and communities, as well as 7. ________(formal) through the education system. As most important marking activities organized are passed formally The committee also emphasized that the festival embodies the harmony between humans and nature and contributes to 8.___________(sustain) development in areas such as food security and education. It also plays 9. ______ key role in raising environmental awareness. The listing of the Spring Festival as an Intangible Cultural Heritage of Humanity is an acknowledgment of not only its Chinese roots but also the ideas it carries 10._________ connect all humanity. China now has 44 items on the intangible cultural heritage list of the UNESCO, continuing to be the most enlisted country in the world. 体现了人与自然的和谐 sustainable a that/which 29 Lavf59.27.100 Bilibili VXCode Swarm Transcoder v1.1.4 Lavf59.27.100 Bilibili VXCode Swarm Transcoder v1.1.6 $