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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.inve

2、ntor-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 被用來做被用來做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 AN

4、D 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 talk187

5、91b1babedc18761885192719711976dabecPAIRWORKRead 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 inven

6、ted by?B: It was invented by Bell.be used for doing 被用來做被用來做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 calculati

7、ng 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. 結(jié)構(gòu)：結(jié)構(gòu)：be + V. pp 即即.be+動(dòng)詞過去分詞動(dòng)詞過去分詞The passive voice.Bellinvented the telephonein 1876.wasby主動(dòng)句與被動(dòng)句之間的主動(dòng)句與被動(dòng)句之間的轉(zhuǎn)換轉(zhuǎn)換 I cleaned the blac

8、kboard.主語 +謂語動(dòng)詞 + 賓語The blackboard was cleaned ( by me ) 主語 +謂語動(dòng)詞 +介詞+ 賓語 SUMMARY 1. we learned some new words. 2. we also learned sentences patterns. 3. we also the grammar-passive voice.4.訓(xùn)練與作業(yè)訓(xùn)練與作業(yè)將下列句子由主動(dòng)句變?yōu)楸粍?dòng)句或由被動(dòng)句變?yōu)橹鲗⑾铝芯渥佑芍鲃?dòng)句變?yōu)楸粍?dòng)句或由被動(dòng)句變?yōu)橹鲃?dòng)句：動(dòng)句：1)Zheng Jie invented this pen.變被動(dòng)句變被動(dòng)句 .2) Teachers allow students to drink in class.This pen was invented Zheng Jie. Students are allowed to drink in class.HOMEWORK-MUSIC in 1885Carl Bens travellingWhen, who, what use?三問三答三問三答-六句六句Good bye !