Unit 4 Amazing Science Topic 1 Section D（课件）2025-2026学年仁爱科普版（2012）九年级英语上册

该初中英语课件聚焦一般过去时的被动语态，通过“Where Are We?”阅读材料导入，从早期探险者用星星定位过渡到GPS发明，结合语法讲解、练习及阅读搭建学习支架，帮助学生掌握被动语态结构与应用。 其亮点在于情境化科学主题融合语言学习，通过GPS阅读材料、语法分层练习及“设计发明”项目活动，提升学生语言能力和思维品质。包含视频资源辅助理解，总结环节系统梳理知识点，既助学生巩固语法、激发探究兴趣，也为教师提供高效教学支持。

Unit 4 Amazing Science Topic 1 When was it invented ? Section D Review ( )1.—I’ve finished my homework, mom. May I go out to play? —Really? When _____ it _____? A. is; finished B. was; finished C. will; finish D. does; finish ( )2. —Could you tell me how the car accident _____? —Of course. A. came about B. came on C. came over D. came out ( )3. —Why is Miss Li so angry? —Because _____ of the students has finished yesterday’s homework. A. none B. all C. every D. no ( )4. Mr. Feng gets up early in the morning _____ he can cook breakfast. A. in order B. in order to C. so that D. so as to Choose the right answer. You can do it. B A A C Read through Sections A-C and pay attention to the underlined parts. Grammar Passive Voice (II) The radio was invented by Guglielmo Marconi in 1895. When was the digital camera developed? It was developed in the 1970s. Where was it developed? It was developed in Japan. What is a rocket used for? It is used for sending satellites or spaceships into space. 一般过去时的被动语态： were/was + v.的过去分词 语法知识：一般过去时的被动语态 （1）一般过去时的被动语态的基本结构： was/were + 及物动词的过去分词。 eg. —Where was your coat made? —It was made in Shanghai. （2）一般过去时的被动语态的各种句型 ①陈述句：主语 + was/were + 及物动词的过去分词 eg. My smartphone was made in China. ②一般疑问句：was/were + 主语 + 及物动词的过去分词 eg. Was your smartphone made in China? ③否定句：主语 + was/were+not + 及物动词的过去分词 eg. My smartphone wasn’t made in China. ④特殊疑问句：特殊疑问词 + was/were +主语 + 及物动词的过去分词 eg. Where was your smartphone made? Language points 及时练习2: 1.Jane gave me a dictionary just now. （改为被动语态） A dictionary ______ _______ ______ me just now. 2.Edison invented more than two thousand inventions during his life. （改为被动语态） More than two thousand inventions _____ _______ by Edison during his life. 3. Last year, Wang Yuan _____ to make a speech at a UN meeting. A. was invited B. invited C. is invited D. will be invited was given to was invented A Passive voice was /were +done ( ) 1. A big supermarket _____in our city last year. A. is built B. were built C. was built ( ) 2.Could you tell me who the radio ____ by? A. invents B. invented C. was invented ( ) 3. Many trees and flowers _____ in our school last year. They made our school more beautiful. A. have planted B. were planted C. planted ( ) 4.The children ____ swim last month and they can swim very well now. A. are taught B. were taught C. were taught to ( ) 5. It is said that potato chips _____by mistake about one hundred years ago. A. were invented B. invented C. are invented C B C A C Grammar exercise 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 were/was + v.的过去分词 wasn’t invited Were checked were planted Grammar exercise Functions I wish I could go into space soe day. I hope your dream will come true. It’s said that he invented more than two thousand things during his life. Inventing is interesting and exciting and everyone can be an inventor. New words explorer /ɪkˈsplɔ:rə/ n. 探险者，勘探者 mark /ma:k/ n.记号；符号 v. 做记号 system /ˈsɪstəm/ n. 体系，制度 man-made adj. 人造的；非天然的 1. 在天空中 2. 查明，弄清楚 3.奏效，起作用 4. 在夜晚 5.只要（主将从现） 6. 剩下的 7. 在任何时候 8. 在将来 Key phrases 1. in the sky 2. find out 3. work well 4. at night 5. as long as 6. the rest of 7. at any time 8. in the future How did the early explorers know where they were? by using stars in the sky by using GPS What is GPS? Let’s watch the video. 1b Read the passage and discuss the questions on Page 88. 1. How did the early explorers know where they were? 2. What’s the disadvantage of using the stars as guiding marks? 3. What is a GPS? Is it useful to use? 4. What do you think the GPS will be used for in the future? Where are we? That was a big question when we first explored our world long ago. The early explorers found that the stars in the sky were good guiding marks. Using the stars, they could find out where they were and in which direction they were going. This method worked well at night as long as the weather was good and the stars could be seen. But it didn't work so well during the rest of the time. That was a problem. 1. How did the early explorers know where they were? 2. What’s the disadvantage of using the stars as guiding marks? They found out where they were by using stars. Its disadvantage is that it didn’t work well when the weather was bad and the stars could not be seen. Read paragraph 1 and answer. Today, the problem has been solved by the Global Postitoning System(GPS). It is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. It can also be used to study the shape of the earth. The GPS is a great invention that helps us explore our planet and discover where we are. 3. What is a GPS? Is it useful to use? It is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. It is very useful. Read paragraph 2 and answer. Where Are We? Where are we? That was a big question when we first explored our world long ago. The early explorers found that the stars in the sky were good guiding marks. Using the stars, they could find out where they were and in which direction they were going. This method worked well at night as long as the weather was good and the stars could be seen. But it didn't work so well during the rest of the time. That was a problem. paragraph 1 explore v. 探索；考察 explorer n. 探险者 1. Using the stars, they could find out where they were and in which direction they were going. 利用星星，人们就能发现他们在哪里，他们正在朝哪个方向走。 考点： 辨析：look for, find 与 find out 这三个词都有“找”的含义，但具体用法有区别： (1) look for 意为“寻找”，是有目的地找，强调“寻找”这一动作。 eg. —What are you looking for? —I’m looking for my dictionary. (2) find 意为“找到”，强调“找”的结果, 其宾语往往是某个丢失的东西或人。 eg. I haven’t found my lost dog yet. (3) find out 着重表示通过理解、分享、思考、询问等“弄清楚” “查明白”一件事情，其后的宾语常常是某个情况、事实。 eg. We must find out who broke the windows of the teachers’ office. Language points 及时练习1: 1.—We are going to Beijing. Can you help me_____when the train will leave? —Sure. A．look for B．find for C．find out D．to see 2. —Why can’t I learn Geography well? —I don’t know. You have to ______ the reason carefully. A．think about B．find out C．look at D．go for 3. Lily _____ her toy everywhere but she can’t _____ it. A. found; find B. look for; find out C. looked for; find D. finds; find C B C Where Are We? Where are we? That was a big question when we first explored our world long ago. The early explorers found that the stars in the sky were good guiding marks. Using the stars, they could find out where they were and in which direction they were going. This method worked well at night as long as the weather was good and the stars could be seen. But it didn't work so well during the rest of the time. That was a problem. paragraph 1 explore v. 探索；考察 explorer n. 探险者 work well 奏效, 起作用 2. This method worked well at night as long as the weather was good and the stars could be seen. But it didn’t work so well during the rest of the time. 在夜晚，只要天气晴朗，你能看见星星，这种方法就能很好地发挥作用。 但是在其余时间里，这种方法就失效了。 考点： (1) as long as意为“只要”。引导条件状语从句，遵循主将从现原则。 eg. We will go for a picnic as long as the weather is fine. (2) the rest 意为“剩余的”，其后接 of + 名词（名词可以是可数名词， 也可以是不可数名词），其谓语动词的形式由of 后的名词决定。 eg. The rest of books are for disabled children. 练习 ： 1. The rest of milk _______ (be) for the little dog. 2. My parents don’t mind which school I choose _____ I am happy every day. A . as long as B. before long C. what’s more D. as soon as Language points is A paragraph 2 Today, the problem has been solved by the Global Postitoning System(GPS). It is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. It can also be used to study the shape of the earth. The GPS is a great invention that helps us explore our planet and discover where we are. 现在完成时的被动语态： have/has been +动词的过去分词 在任何时候 Name: Plar (plan-car) Inventor: Kangkang Year: 2014 Use: Both flying and driving 1. This is Kangkang’s invention. Look at the information and the picture. What do you think of it ? Discuss with your partners. Project ---Describing Your Invention. 2. Design your own invention. Draw a picture of it and write down the information about it. Name :____________ Inventor:___________ Year:_____________ Use:______________ 3. Show the picture of your invention and describe it to the class. 4. Discuss in groups to decide which is the most useful /interesting/funny invention. Project ---Describing Your Invention. 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. ________________________________________________ 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. Change the following sentences into Passive Voice. Exercises ( ) 1.Hurry up, you ____ on the phone. A. wanted B. was wanted C. are wanted ( ) 2. Some stories _____the children by the teacher everyday. A. is told for B. are told for C. are told to ( ) 3._____that he has studied abroad for five years. A. It is said B. It says C. That is said ( ) 4.The window ____ five minutes ago. A. is cleaned B. was cleaned C. can be cleaned ( ) 5.The children ______by the teachers at school. A. take care of B. are taken care C. are taken care of C C A B C Choose the best answer. Exercises summary We Learn: 1. Some words : mark, explorer 2. Some phrases: find out, in …, direction, as long as, work well, the rest of the time, be used to, the shape of 3. Some sentences: This method worked well at night as long as the weather was good and the stars could be seen. We can: 1. Use the passive voice of the simple past tense more properly. 2.Talk about new technology GPS. 3. Develope our imagination and creativity by designing our own inventions. Homework Read 1a. Memorize the useful expressions and key sentences which we learn today. Finish Section D in your workbook. Preview Section A of Topic 2. Thank you Lavf58.20.100 66192.93 $