Unit 4 Topic 1 When was it invented ? Section D 课件 2025-2026学年仁爱科普版（2012）英语九年级上册

该初中英语课件围绕“Unit 4 Topic 1 When was it invented?”的Section D展开，核心涵盖被动语态（情态动词及一般过去时）、重点短语积累及句型转换。通过“很久以前”“查明”等短语学习导入主题，逐步过渡到情态动词被动语态（情态动词+be+过去分词）和一般过去时被动语态（was/were+done），构建从短语到语法、从基础到应用的学习支架。 其亮点在于以实例驱动语法教学，通过主动被动句转换（如“Amy can take care of Gina”变为“Gina can be taken care of”）、虚拟语气（wish后的从句）等内容，提升学生语言能力与思维品质。多样化练习（单选、填空、句型转换）帮助巩固知识，教师可直接用于课堂讲解与巩固，助力学生系统掌握语法，培养语言运用能力。

Unit 4 Topic 1 When was it invented ? Section D 1.很久以前 long ago 2.在天空中 in the sky 3.查明，弄清楚 4.奏效，起作用，产生影响 5.在夜晚 6.只要……(主将从现) find out work well at night as long as 7.剩下的…… the rest of... 2 at any time 8.在任何时候 in any place 9.在任何地方 10.在任何天气情况下 in any weather 11.被用来做某事 be used to do sth. 12.某物的长处/优点 13.对某人有用 14.在将来 the disadvantage of sth. be useful to... in the future 3 Grammar Find out the sentences with passive voice(被动语态). 1. The stars could be seen. 2. It can be used to study the shape of the earth. 情态动词的被动语态构成： 情态动词+be+动词的过去分词 含有情态动词的被动语态. can/may/must/should + be+过去分词 1.Amy can take good care of Gina ． by Amy. Gina can be taken good care of 2.You should drink more water. More water should be drunk by you. Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done The radio was invented by Guglielmo Marconi in 1895. When was the digital camera developed ? Where was it developed? What is a rocket used for? It was developed in the 1970s. It was developed in Japan. It is used for sending satellites or spaceships into space. Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 1.概念： 一般过去时的被动语态表示主语是过去某个动作的承受者。 2. 构成：主语＋was/were＋动词的过去分词。 Some new computers were stolen last night. 昨天晚上有几台新电脑被盗了。 Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 3.主动变被动：把主动语态中的主语放在介词by之后作宾语，将主格改为宾格(“by＋人称代词”短语可以省略)。如： All people laughed at him. 所有的人都嘲笑他。 → ______________________________他被所有的人嘲笑。 He cut down a tree. 他砍倒了一棵树。 → ____________________________ 一棵树被他砍倒了。 He was laughed at by all people. A tree was cut down by him. Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 语态：表示主语和谓语动词之间的关系。 英语有两种语态，即主动语态和被动语态。 主动语态：表示主语是动作的执行者。被动语态：表示主语是动作的承受者。 如： Many students study English.(主动语态) English is studied by many students. (被动语态) Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 将主动语态变为被动语态方法: 原宾语变主语，动词变为be+动词过去分词， 原主语由by连接。 by many students. 1.Many students study English. English is studied 2.They made shoes in that factory. Shoes were made by them in that factory. Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 1. Many houses________ in the earthquake of April 20, 2013 in Ya'an. A．is destroyed　　 　B．are destroyed C．was destroyed D．were destroyed 2. Flowers________ along the road last year. A．plant B．planted C．are planted D．were planted Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 3. —Frog, Mo Yan's latest novel, please! —Sorry, it________ just now. But it will come out again soon. A．sold out B．is sold out C．has sold out D．was sold out 4. —Who designed this game? —It________ by Tom in 1999. A．is designed B．designs C．was designed D．designed Passive Voice (Ⅱ) 一般过去时的被动语态 was /were +done 5. —Do you know Earth Day? —Sure. It________ in 1970 to tell us to protect our planet. A．sets up B．set up C．is set up D．was set up 6. Lots of food and water ________ to Ya'an, Sichuan Province immediately after the earthquake happened. A．were sent B．are sent C．send D．sent Functions I ______(希望)I could go into space some day. I ______(希望) your dream will__________(实现). ______________ (据说) he invented more than two thousand things during his life. _________(发明) is interesting and exciting and everyone can be an__________ (发明家). wish come true hope It’s said that Inventing inventor ★wish后的从句可用_______语气： 表示美好愿望，不一定能实现。 虚 拟 Practice 用所给词的适当形式填空. 1.You are late, all the tickets __________(sell) out an hour ago. 2.This type of cellphone ____________(make )in Shenzhen. 3. I _________________ ( not invite) to yesterday’s party. 4. ________ those machines __________(check) this morning? 5. Many trees and flowers ______________(plant) in our school last year, and they made our school a beautiful garden. were sold were made wasn’t invited Were checked were planted 将下列句子由主动语态变为被动语态 . 1. They will play football on this Sunday. 2. Lucy did the homework in the evening. 3. They often use computers in class. 4. We have made these machines in Beijing before. Football will be played by them on this Sunday. The homework was done by Lucy in the evening. Computers are often used by them in class. These machines have been made (by us) in Beijing. 将下列句子由主动语态变为被动语态 . 1.People use radios to learn English in the past. _____________________________________________ 2.Jack will show me the photo. ______________________________________________ 3.They have raised much money for the Project Hope. ______________________________________________ 4.I often hear Mary sing English songs at home. _______________________________________________ 5.We mustn’t throw litter about. ________________________________________________ 6.People can visit planets like Mars. _________________________________________________ Radios were used to learn English in the past. The photo will be shown to me. Much money has been raised for the Project Hope. Mary is often heard to sing English songs at home. Litter mustn’t be thrown about. Planets like Mars can be visited. （ ）1.He didn't pass the exam because he _____ by his teacher at all in the past. A.encouraged B.wasn't encouraged C.isn't encouraged D.weren't encouraged （ ）2.Nowadays GPS _____ finding out our position and studying the shape of the earth. A.used to B.was used to C.be used to D.is used for 单项选择 （ ）3.The rest of the apples _____ for you. A.am B.is C.are D.be （ ）4.The mobile phone has influenced people's life a lot since it _____. A.invents B.invented C.is invented D.was invented （ ）5.Gina went to the doctor's yesterday and she _____ about the importance of good living habits once more. A.told B.is told C.was told D.has told 1.It is like a man-made star.(改为否定句) It isn't like a man-made star. 2.Drivers can find out where they are by using GPS.(对划线部分提问) How can drivers find out where they are? 3.Did you clean the classroom yesterday?(改为被动语态) Was the classroom cleaned yesterday? 4.只要你沿着这条街一直往前走，你一定会找到那家医院。(完成译句) You will find the hospital as long as you go straight along this street. 5.它已经有效地控制了中国人口。(完成译句) It has worked well in controlling China's population. 句型转换 $