九年级英语 Unit9 when was it inventedperiod 1课件 人教新目标版

1、 Unit 9 when was it invented ?The first period 提示：提示： 1. take some things in the classroom. 2. ask students what are these things. 3. then invent a useful thing with the things. 4. ask the students what it is ? Guess ? 5. tell the answer MP8My great invention-9 Whats the name of it? 1.invent-v 2.inv

2、entor-n 3.invention-n Whats the use? 4. can calculate-v 5.name-calculator-n 6.calculation-n 7.translate 8.translator 9.translation250+250=?W.C- means ?MP8Questions-4 1.Whats the name of the thing (invention)? 2.When was it invented? It was invented just now. 3.Who was it invented by? It was invented

3、 by Mr Liu. 4.What is it used for ? It is used for translating, calculating, flying , making a call and learning English.be used for doing 被用来做被用来做It is called MP8Make sentences:The telephone was invented before the car.The car was invented after the telephone.524131a-number the pictures Lets look a

4、nd talk name?-when?- who? When was it invented?It was invented in 1885Who was it invented by ?It was invented by Karl Benz.Karl Benz.car1885 light bulb name?-when?- who? It was invented in 1879Who was it invented by ?It was invented by Edison.Edisonlight bulbWhen was it invented?Lets look and talk18

5、791b1babedc18761885192719711976dabecpairworkRead the model and then make your own conversationA: What is this called in English？B: It is called the telephone.A: When was the telephone invented?B: It was invented in 1876.A: What is it used for?B: It is used for talking with others.A : Who was it inve

6、nted by?B: It was invented by Bell.be used for doing 被用来做被用来做1876BellPairworktelephoneWhen ?Who ? What ? Talking with the people far away.Beld1927Tv setWatching and learning many things in the world.When, who, what use? car travelling.in 1885Carl Bens When, who, what use?1971Kelifcalculator calculat

7、ing When, who, what use?The passive voice. MP8 It was invented just now. It was invented by Mr Liu. It is used for translating, calculating, flying and making a call. 结构：结构：be + V. pp 即即.be+动词过去分词动词过去分词The passive voice.Bellinvented the telephonein 1876.wasby主动句与被动句之间的主动句与被动句之间的转换转换 I cleaned the bl

8、ackboard.主语 +谓语动词 + 宾语The blackboard was cleaned ( by me ) 主语 +谓语动词 +介词+ 宾语 summary 1. we learned some new words. 2. we also learned sentences patterns. 3. we also the grammar-passive voice.4.训练与作业训练与作业将下列句子由主动句变为被动句或由被动句变为主动句：将下列句子由主动句变为被动句或由被动句变为主动句： Zheng Jie invented this pen.变被动句变被动句 .2) Teachers allow students to drink in class.This pen was invented Zheng