Unit 5 课时3 Section A Grammar focus 4a-4c（教学课件）英语新教材人教版九年级上册

该初中英语课件聚焦被动语态语法，系统涵盖一般现在时、一般过去时及含情态动词的被动语态结构。课堂导入通过“发明猜谜”活动，以手机、3D打印机等实例的被动句引发兴趣，搭建从识别被动结构到归纳形式特征的学习支架。 其亮点在于融合真实情境与文化元素，如Production环节以青藏铁路语篇填空任务，既强化被动语态运用又渗透中国工程成就，提升语言能力与文化意识。通过对比主动被动语态、归纳结构表格等方法培养思维品质，分层作业设计助力学生巩固与迁移，教师可高效开展语法教学。

Unit 5 Power of Ideas Section A 4a-4c 主讲人：xx 课型：语法课 通过4a圈画任务，识别一般现在时、一般过去时及含情态动词的被动语态结构，归纳不同时态被动语态的形式特征。（学习理解） 01 在4b和4c的填空任务中，根据时间状语和上下文时态线索，准确运用被动语态完成单句和语篇填空。（应用实践） 02 运用被动语态简要介绍一项工程或发明项目，对比主动与被动表达的不同效果，在真实语境中体会被动语态的使用功能。（迁移创新） 03 学习目标 Lead in 01 Presentation 02 Practice 03 Production 04 Summary 05 Language points 06 Exercises 07 Homework 08 Contents Lead in 01 Lead in Can you guess what inventions they are? It was invented by Martin Cooper. The mobile phone They can be used to make many things. 3D printers It was invented in the 1890s. The radio It was invented by the Wright brothers. The plane 被动语态 Passive voice Presentation 02 Presentation Read the sentences. Circle the verbs in the passive voice. 4a A mini-camera is connected to the front of the glasses. The oil and salt are also added by the machine itself. Toys, chairs, tables, and even houses can all be made by the 3D printer. A radio message was sent across the Atlantic Ocean for the first time in 1901. 观察这四个句子，被动语态的共同结构是什么？ be +动词的过去分词 Presentation Passive voice 语态 主动语态 被动语态 主语是动作的执行者 Alexander Bell invented the telephone in 1876.亚历山大·贝尔在1876年发明了电话。 主语是动作的承受者 The telephone was invented by Alexander Bell in 1876.电话是由亚历山大·贝尔在1876年发明的。 被动语态：be + 过去分词 一般现在时的被动语态：am/is/are + done 一般过去时的被动语态：was/were + done 含有情态动词的被动语态：情态动词 + be + done Presentation Passive voice 动词过去式和过去分词的变化规则： 1.一般情况加-ed. look--looked--looked play--played--played 2.以e结尾的动词，只加-d. live--lived--lived hope--hoped--hoped 3.以重读闭音节结尾的动词，末尾只有一个辅音, 应双写这个辅音字母，再加-ed. stop--stopped--stopped plan--planned--planned 4.以辅音字母加y 结尾的动词，变y为i,再加-ed. study--studied--studied carry--carried--carried 5.不规则变化（见不规则动词表） Presentation 主动语态如何变被动语态: Passive voice Alexander Bell invented the telephone in 1876. The telephone was invented by Alexander Bell in 1876. （主动语态） （被动语态） 主语 谓语 宾语 主语 谓语 宾语 by:被.../由... 宾变主,主变介宾 谓变be done时不变（be体现时态，人称和数的变化） Practice 03 Practice Complete the sentences with the correct forms of the verbs in brackets. 4b 1.The telephone______________(invent) by Alexander Bell in 1876. 2.People all over the world_____________（connect) to each other through the internet. 3. The word “robot"_____________(introduce) for the first time in a play in 1920. 4.It wasn't supposed to make such aloud noise when the button_________ (press) to start the machine. 5.It is believed that the world's oldest wheel____________(find)in Eastern Europe. was invented are connected was introduced was pressed was found Production 04 The Qinghai-Xizang Railway was completed in 2006. It ________（connect)Xining to Lhasa, a huge distance of 1,956 kilometres, and it is the highest railway in the world, reaching 5,072 metres above sea level at Tanggula Pass. The building of the railway was a great challenge. Creative ideas __________ (need) to solve different problems. In summer, the top layer of the frozen ground would melt and become too soft to build on,so pipes _________(use) to keep the ground hard. However, in some places, it was impossible to build the railway over the frozen ground, so tunnels had to__________(create)instead. In some other places, bridges _________(build) to keep the railway up above the ground.These bridges are animal-friendly and _________(allow) animals to pass under the tracks. Production Complete the passage with the correct forms of the verbs in brackets. Make a profile of the Qinghai-Xizang Railway. 4c connects were needed were used be created were built allow As an important and successful project,the railway has ___________(increase) tourism and economic development in the area.The lessons learnt and experience gained from building this railway will help___________(improve) transport in other similar places in the world. Production Complete the passage with the correct forms of the verbs in brackets. Make a profile of the Qinghai-Xizang Railway. 4c increased to improve / improve Language Points 05 Language points 词 讲 练 suppose /səˈpəʊz/ v. 认为；推断；料想 重要短语：be supposed to do sth 应当做某事 动词suppose，意为“认为、料想”，表达委婉猜测 例句：I suppose he is right. 我认为他是对的。 核心固定搭配 be supposed to do sth，意为“应该、理应做某事”，等同于should do 否定形式：be not supposed to do sth 不应该/禁止做某事 例句：You are not supposed to run in the hallway. 你不可以在走廊奔跑。。 1. We ____________ (suppose) to respect our teachers. 2. You are not __________ (suppose) to speak loudly in the library. 3. I _______ (suppose) he will arrive on time. are supposed supposed suppose Language points 词 讲 练 frozen /ˈfrəʊzn/ adj. 冻硬的；冰封的；冷冻的 动词原形：freeze /friːz/ v. (使)结冰；(使)冻住 过去式：froze 过去分词：frozen The frozen ground is hard in winter. 冻土在冬天十分坚硬。 We buy frozen vegetables in the supermarket.我们在超市买冷冻蔬菜。 1. The __________ (freeze) river can’t be crossed. 2. Cold weather can _________ (freeze) the water. 3. The lake ___________ (freeze) last winter. frozen freeze froze Language points 词 讲 练 tourism /ˈtʊərɪzəm/ n. 旅游业；观光业（不可数名词） ---tour n. 旅行；游览 --- tourist n. 游客，旅行者 Qinghai’s tourism develops quickly. 青海的旅游业发展迅速。 The railway helps the local tourism. 这条铁路带动了当地旅游业。 Many tourists travel to Xizang by the Qinghai-Xizang Railway. 许多游客通过青藏铁路去西藏旅游。 1. The city’s __________ (tour) brings lots of jobs. 2. Many __________ (tour) come to Lhasa every year. 3. I will take a ___________ (tour) of Europe this summer. tourism tourists tour Summary 06 Summary 常考的被动语态结构 Summary telephone /ˈtelɪfəʊn/ n. 电话 suppose /səˈpəʊz/ v. 认为；推断 wheel /wiːl/ n. 车轮；轮 eastern /ˈiːstən/ adj. 东方 layer /ˈleɪə(r)/ n. 层；表 frozen /ˈfrəʊzn/ adj. 冰冻的 melt /melt/ v. (使) 融化；逐渐消失 pipe /paɪp/ n. 管道；管子；烟斗 tourism /ˈtʊərɪzəm/ n. 旅游业 economic /ˌiːkəˈnɒmɪk/ adj. 经济的；经济学的 gain /ɡeɪn/ v. 获得；取得 be supposed to do / be sth 应当做（某事）或是（某物） be connected to 与……连接 be made by 由……制造 all over the world 世界各地；全世界 through the internet 通过互联网 for the first time 第一次；首次 It is believed that 人们认为；据信 Eastern Europe 东欧 above sea level 海拔以上 frozen ground 冻土 top layer 表层 pass under the tracks 从轨道下方通过 【含有被动语态的句子】 The telephone is connected to the network. The oil and salt are added by the machine. The telephone was invented by Alexander Bell in 1876. The word “robot” was introduced in a play in 1920. A radio message was sent across the Atlantic Ocean in 1901. Toys can be made by the 3D printer. Tunnels had to be created. Bridges had to be built. Words Phrases Sentences Exercises 07 Exercises This kind of machine __________ (use) for cutting vegetables in most restaurants. The first smartphone __________ (sell) in 1994. These roads __________ (build) to connect the small villages to the city. The window __________ (break) by the strong wind last night. All the tickets must __________ (buy) online before you enter the museum. The bridge __________ (complete) in 2010 and it is still in good condition. Too much water __________ (waste) every day in this city. 用所给词的适当形式填空。 is used was sold were built was broken be bought was completed is wasted Exercises The radio ______ by Marconi in the 1890s. A. develops B. developed C. was developed D. is developed 2. This kind of food must ______ in a cool place. A. keep B. kept C. be kept D. keeping 3. It is believed that the story ______ about 200 years ago. A. write B. wrote C. is written D. was written 4. — The ground is too soft to build on. — Yes, some special pipes ______ to keep it hard. A. use B. used C. are used D. were used 用所给词的适当形式填空。 C C D D Homework 08 Homework 基础作业 拓展作业 实践作业 完成本课重点单词的背诵与默写，并完成被动语态（一般现在时、一般过去时、情态动词被动）的单项填空和动词形式填空练习。 从本课 Grammar Focus 4a 的例句和 4c 的短文中，找出所有被动语态的句子，按“一般现在时被动” “一般过去时被动”“情态动词被动”三类分别抄写至少2个例句，并总结每种时态被动语态的结构规律。 选择一项中国的重要工程或发明（如青藏铁路、高铁、中国空间站等），用英文写一段60–80词的简介，说明其建造时间、用途及意义，其中至少使用3种不同时态的被动语态句子。 Thank you for listening $