Unit 5 Section A Grammar 4a-4c 课件 2026-2027学年人教版英语九年级上册

Unit 5 Power of Ideas Grammar What changes can inventions bring to our lives? 第四课时 Section A 4a-4c Learning Objectives 1 2 3 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）。 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)。 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)。 A mini-camera is connected to the front of the glasses. The oil and salt are also added by the machine itself. Let’s review 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. I _______the song. The song_________ by me. You________ the song. The song___________by you. He_________the drums. The drums__________by him. She_________the song. The song___________by her. Let’s enjoy and fill is sung play is played plays are played sings is sung sing by you I sing the song. The song is sung by me. You play the song. The song is played by you. He plays the drums. The drums are played by him. She sings the song. The song is sung by her. 被动语态 主语是动作的执行者 主语是动作的承受者 Let’s learn 主动语态 1. 对应关系：英语被动语态对应中文的“被字句”，主动语态对应“把字句”。 2. 基本结构： be + 动词过去分词 ，表示“被……”。 3. 补充说明：若要引出动作的执行者，需在句末用介词 by + 人物 ，且 by 后接宾格形式。 被动语态 被动语态: be +done 此课件为蜗牛英语圈原创课件，已申请版权，侵权必究法律责任 A mini-camera is connected to the front of the glasses. The oil and salt are also added by the machine itself. Read the sentences. Circle the verbs in the passive voice. 4a Grammar Focus 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. 被动语态: be done 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. 一般现在时被动语态: am/is/are + done 含有情态动词的被动语态: 情态动词+be + done 一般过去时被动语态: was/were + done Let’s observe 一般现时,含有情态动词,一般过去时的被动语态 ( )1.The letter ______ by my father yesterday. A. writes B. wrote C. was written ( )2.The classroom ____________every day. A. clean B.should be cleaned C. should clean ( )3.Everyone must _________the rules. A. follow B. be followed C. followed ( )4. Lots of flowers ______ every year in our school. A. plant B. are planted C. were planted Let’s practice 单项选择 C B A B Let’s learn. The machine itself adds the oil and salt . the oil and salt are added the machine itself. by 主动语态 被动语态 be+done 主动语态 被动语态 一个微型摄像头被连接在眼镜的前部。 A mini-camera is connected to the front of the glasses. 肯定句 否定句 A mini-camera is not connected to the front of the glasses. 一般疑问句 Is a mini-camera connected to the front of the glasses? ---Yes,it is. /No, it isn’t. 特殊疑问句 Where is a mini-camera connected ? 被动语态的句式 玩具、椅子、桌子，甚至房子都可以被3D打印机制作出来。 Toys, chairs, tables, and even houses can all be made by the 3D printer. 肯定句 否定句 Toys, chairs, tables, and even houses can’t all be made by the 3D printer. 一般疑问句 Can toys, chairs, tables, and even houses all be made by the 3D printer? Yes, they can./No, they can’t. 特殊疑问句 What can all be made by the 3D printer? 被动语态的句式 was invented are connected was introduced was pressed was found be supposed to do sth.应该做某事 人们相信 suppose /səˈpəʊz/ V. 认为，推断 wheel /wiːl/ n.车轮；轮子 telephone /ˈtelɪfəʊn/ n.电话 eastern /ˈi:stən/ n.车轮；轮子 connects 海平面 青藏铁路 把.....和......连接起来 唐古拉山口 被动语态的句式 长达......的巨大距离 were needed were used be created were built allow 解决不同难题 太......而不能...... 对动物友好的， 爱护动物的 做某事是可能的 allow sb. to do sth. 允许某人做某事 frozen /ˈfrəʊzn/ adj.冻硬的；冰封的 layer /ˈleɪə(r)/ n.层；表层 melt /melt/ v.（使）融化；逐渐消失 pipe /paɪp/ n.管道；管子；烟斗 tunnel /ˈtʌnl/ n.隧道；地下通道 increased (to) improve help (to) do sth.有助于做某事 gain /ɡeɪn/ v.获得；取得 economic /i:kəˈnəʊmɪk/ adj.经济的;经济学的 tourism /ˈtʊərizəm/ n.旅游业 APassengers, we have reached Tanggula Pass — 5,072 metres above sea level! This is the highest point of our journey. The Qinghai-Xizang Railway turns impossibility into reality. We should carry on the spirit and try to create our own wonders. Must-do 1.抄写单词。（明天听写） 2.完成练习册上的题 P73-75 II 完成句子。 IV 语法选择 Choose-to do 创意思考：Write a short passage of about 60 words to introduce an invention with at least two forms of the passive voice . 写60词左右小短文，介绍一项发明，至少使用2种被动语态（如一般过去被动,情态动词被动）。 提示词：invent, be made, can be used Homework 全世界 把.....和......连接起来 几秒 应该做某事 人们相信 解决不同难题 太......而不能..... 做某事是可能的 助于做某事 1.all over the world=around the world 2.connect...to... 3. in seconds 4.be supposed to do sth. 5.It is believed that 6.solve different problems 7.too...to... 8.It is/was possible to do sth. 9.help (to) do sth. 10. $