Unit 5 Power of Ideas Section A Grammar Focus课件2026-2027学年人教版九年级英语上册

该初中英语课件聚焦被动语态语法，核心知识点包括一般现在时和一般过去时的被动语态结构及用法。课堂通过观看视频导入，引导学生区分主动与被动语态，随后按概念、构成、用法、句式结构、主动被动转换的脉络展开，结合练习形成学习支架，帮助学生逐步掌握。 其亮点在于融入真实语境设计任务，如用青藏铁路短文、Oxfam及希望工程对话练习，提升语言能力和文化意识。通过从单句到语篇的梯度训练培养思维品质，总结兼顾语法与词汇，助力学生高效应用，为教师提供系统教学资源。

Section A What changes can inventions bring to our lives ?（Grammar Focus） Unit 5 Power of Ideas At the end of the class, we are able to: 1. identify the passive voice in sentences and understand its structure (be + past participle). 2. use the passive voice correctly in different tenses (simple present, simple past). 3. complete sentences and a passage by using the correct forms of the passive voice. Learning Objectives Warming Up Active voice Passive voice Watch the video and share what you find from it. 点击播放视频 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. Grammar 4a Read the sentences. Circle the verbs in the passive voice. Presentation Simple present Simple past 动作的承受者 动作的发起者 be＋及物动词的过去分词 被动语态 概念 主动语态：主语是动作的执行者 e.g. People grow tea in Hangzhou. 被动语态：主语是动作的承受者 e.g. Tea is grown (by people) in Hangzhou.  构成 有人称、数和时态的变化 e.g. I am often asked the questions by my pupils. You aren’t allowed to take photos. 一、被动语态的概念及构成 被动语态 的用法 (1)不知道或不必提及动作的执行者 e.g. The first electric railway was opened in 1890. 第一条电气铁路是在 1890 年开通的。 (2)强调动作的执行者 e.g. The beautiful hat was given by my grandmother. 这顶漂亮的帽子是我奶奶给我的。 (3)强调动作的承受者 e.g. The TV was invented after the car. 电视是在汽车之后发明的。 二、被动语态的用法 被动语态 的用法 (4)动作的执行者是无生命的事物 e.g. The bridge was washed away by flood. 桥被洪水沖走了。 (5)常用于陈述客观事实，一般用在科技文章或新闻报道中 e.g. More research needs to be done, if this problem is to be solved. 如果要解决这个问题，仍需做更多的研究工作。 (6)部分动词短语/句型在习惯上只用于被动语态 e.g. The road is covered with snow. 马路被雪覆盖着。 句式 结构 例句 肯定句 主语+ am/is/are +过去分词+其他. Chinese is spoken by many people. 否定句 主语+ am/is/are+ not +过去分词+其他. They aren’t allowed to go into the house. 一般现在时的被动语态句式结构 三、被动语态的句式结构 句式 结构 例句 一般疑问句及回答 Is/Are+主语+过去分词+其他? 肯定回答: Yes, 主语+ is/ are. 否定回答: No, 主语+ isn’t/ aren’t. — Is the car made by a Germany? — Yes, it is./No, it isn’t. 特殊疑问句 特殊疑问词+一般疑问句 What are the shirts made of? 一般过去时被动语态的肯定句结构为： “主语+_______________________________+其他.”。 was /were+及物动词的过去分词 一般过去时被动语态的否定句结构为： “主语+____________________________________+其他.”。 was/were not+及物动词的过去分词 一般过去时被动语态的一般疑问句结构为： “___________________________________+其他.”。 Was/Were +主语 +及物动词的过去分词 一般过去时被动语态句式结构 主动语态 被动语态 宾语 谓语 主语 I am often asked the questions by my pupils. My pupils often ask me questions. 主动语态： 被动语态： 主语 be+及物动词的过去分词 介词by的宾语， 放在谓语之后(有时可省略) 四、主动语态变为被动语态的方法 1. 有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。 e.g.The teacher came up with a new idea. →_____________  was _____________  by the teacher. 介词“off, with”不能去掉。 A new idea come up with e.g. They put off the sports meeting because of the weather. → The sports meeting was put off because of the weather by them. 五、主动语态变被动语态应注意的问题 2. 主动句中感官动词see / hear / watch / feel等和使役动词make / let / have等后跟省略to的动词不定式，变为被动语态时应加上不定式标志to。 e.g. People made the law to protect their rights. →The law ______________  protect people’s rights. 变为被动 语态时必须 加上“to” was made to e.g. I saw him leave the room. → He was seen to leave the room. 3. 含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变；如果把指“物”的直接宾语变为主语，则在间接宾语前加to或for。 “An e-dictionary” 作主语， “me”前保留 “to” e.g. My father gave me an e-dictionary yesterday. → I was given an e-dictionary yesterday. → An e-dictionary was given to me yesterday. was bought a book was bought for me e.g. He bought me a book. →I _________________ by him. →A book ________________ by him. A book 作主语，“me”前 加“for” 4. 系动词、不及物动词或某些短语动词（happen, take place, come true, fall asleep…）没有被动语态。 e.g. The meeting took place yesterday. He fell asleep during the movie. 无被动 语态 His dream came true after many years. The accident happened last weekend. 4b Complete the sentences with the correct forms of the verbs in brackets. 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. 全世界 was invented are connected was introduced Practice 4. It wasn’t supposed to make such a loud noise when the button _____________ (press) to start the machine. 5. It is believed that the world’s oldest wheel ___________ (find) in Eastern Europe. was pressed was found 4c Complete the passage with the correct forms of the words in brackets. Make a profile of the Qinghai–Xizang Railway. 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. connects Production 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. were needed were used 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. 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. increased improve Exercises 一、补全对话（用所给单词或词组的正确形式填空） Amy: I’m reading a book about Oxfam. Daniel: Really? Please tell me about it. Amy: OK. Oxfam (1) ________________ (set up) in the UK in 1942, and the first Oxfam shop (2) ________________ (open) in 1948. Now it has about 15,000 shops all over the world. A lot of things (3) _________ (sell) in Oxfam shops, including books. The money (4) __________ (use) by Oxfam to help poor people. was set up was opened are sold is used Daniel: That’s good. There are also some charity projects in China. One of them (5) ___________ (call) Project Hope. It (6)__________ (start) in 1989. With its help, millions of poor children all over the country (7) ____________ (give) basic education. Amy: Yes. Many schools (8) ___________ (build) in poor areas each year. is called was started were given are built 二、把下列主动语态的句子变为被动语态，或把被动语态的句子变为主动语态。 1. The local government built a new bridge in my hometown last year, making it easier to travel around. ______________________________________________________________ ______________________________________________________________ 2. Tom often helps Jenny when she is in trouble. ______________________________________________________________ Jenny is often helped by Tom when she is in trouble. A new bridge was built in my hometown last year, making it easier to travel around.. 3. Many trees are planted by students and teachers every year. ______________________________________________________________ 4. She takes good care of the children. ______________________________________________________________ Students and teachers plant many trees every year. The children are taken good care of by her. 1. Grammar： 学习在一般现在时和一般过去时中正确使用被动语态 2. Words and expressions: suppose, wheel, frozen, complete, layer, melt, pipe, tunnel, tourism, all over the world, be supposed to do/be sth Summary Lavf57.71.100 Bilibili VXCode Swarm Transcoder v0.2.30(gap_fixed:False) $