Unit 6 Section A 1a～2d课件-2024—2025学年人教版英语九年级全册

Unit6 When was it invented? Section A (1a —2d) 一、功能： Talk about the history of inventions. 二、常用词汇和表达： Learn to use the words and phrases (heel, scoop, electricity, style) 三、文化知识： Know more about the history of inventions and use them correctly. Learning Goals pc = personal computer I think computer is the most helpful invention. Because it helps me search the information that I need. It was invented by two young men from America. Karl Benz invented the car. ______was invented by _______. The car Karl Benz Bell invented the telephone. __________was invented by ___. The telephone Bell Look at the things. In what order do you think they were invented? A: I think the TVwas invented before the computer. B: Well, I think the TVwas invented after the computer. Look at the things below. In what order do you think they were invented? 拖动图片到序号旁 1a I think the TV was invented before the car. Well, I think the TV was invented after the car. I think the telephone was invented before the computer. Well, I agree with you. I think … was invented before / after ... Well, I … The first telephone _____ ________ (by Bell) in 1876. Bell invented the first telephone in 1876. was invented Karl Benz invented the first car in 1885. The first car _____ ________(by Karl Benz) in 1885. was invented The first television was invented (by J. L. Baird) in 1927. J. L. Baird invented the first television in 1927. Listening Listen and match the inventions with the years. 1b ___ 1876 ___ 1885 ___ 1927 ___ 1971 d a c b Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again. Practicing 1c When was the telephone invented? I think it was invented in 1876. ______ Shoes with special heels _______ shoes with lights _______ ice cream scoop runs on electricity 2a.Listen and number the inventions in the order. 3 1 2 2b. Listen again and complete the chart below . Invention What is it/are they used for? shoes with special heels _____ the style of the shoes shoes with lights seeing ___________ hot ice cream scoop ______ really cold ice cream changing in the dark serving Invention Inventor Time Usage (用途) telephone Bell 1876 making phone calls computer an American 1976 getting information light bulb Edison 1830 giving light camera a Frenchman 1837 taking pictures bike an Englishman 1839 riding basketball James 1861 playing Make conversations according to the table. who when what Practice: --What’s it used for? --It’s used for… --What is this in English? --It’s a… 2d. Role-play the conversation What is it used for? Pair work: seeing in the dark traveling talking without meeting relaxing A: What is the telephone used for? B: I think it is used for talking with people. cutting keeping warm Inquiry into knowledge by translation. (合作探究) 1.When was the telephone invented? I think it was invented in1876. ____________________________________________ ①invent 为 ______词，其名词为__________，“发明家”为__________。 ②was/were+________构成________时态的被动语态。 Edison ,a great__ ________,_________many _____________during his life. 动 invention inventor V-ed 过去 inventor invented inventions 电话是什么时候发明的？我认为在1876年。 Many trees are planted by people every year. 主动语态变被动语态的结构图: 主语 谓语 宾语 时间状语 主语 谓语动词的 过去分词 宾语 时间状语 主语+be(am/is/are) +done(过去分词)+（by +动作执行者） 一般现在时的被动语态： People plant trees every year. 把主动语态改为被动语态 1.They play football  on Sunday. _______________________________ 2.Lucy does the homework in the evening. _______________________________ 3.They often use computers in class. _______________________________ 4.We make these machines in Beijing. ____________________________ Football is played (by them) on Sunday. The homework is done (by Lucy )in the evening. Computers are often used( by them) in class. These machines are made (by us) in Beijing. 一般过去时的被动语态 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。 8/15/2024 2.It’s used for serving really cold ice cream. 【经典习题】完成句子： 邮票是用来发送信件的。 Stamps are ____ ___ ______ letters. 【要点点拨】be used for doing sth. 表示“被用于干某事”，意思与be used to do sth.相同。 如：The camera is used for taking photos. = The camera is used to take photos. used for sending 8/15/2024 【拓展延伸】 ◆be used as sth. 表示“被用作某物”。如：English is used as the second language in many countries. ◆be used by sb. 表示“被某人使用”，后接动作的执行者。如：These textbooks are used by students. ◆be / get used to doing sth. 表示“习惯于做某事”。如：She is used to running every morning. ◆used to do sth. 表示“过去常常做某事”。如：Miss Li used to dance after work. Summary: What have you learnt? 1.句型when was the car invented? 和I think it was invented in 1876.的运用。 2. 能听懂年份的读法。 Homework: Find out the information about them and write down the sentences with Passive Voice like: gun powder paper making printing compass … was invented in … It was invented by… It’s used for … Four Great Inventions of China $$