Unit_9_When_was_it_invented_Section_A1_英语教学课件

Unit 9When was it invented?Section APeriod One inventcalculator be used for scoop adjustable v.发明；创造发明；创造n.计算器计算器用来做用来做v.用勺舀用勺舀 n.勺子；球形勺；长柄勺勺子；球形勺；长柄勺adj.可调整的可调整的Words and expressionsheel battery operate battery-operate slipperheatn.（鞋、袜等的）后（鞋、袜等的）后跟；跟；(足足)跟跟n.电池电池v.操作；作业操作；作业电池供电的电池供电的n.拖鞋拖鞋v.加热；使变热加热；使变热Words and expressionsWhat are the Four Great Inventions in ancient China?Do you know?paper-making 造纸术造纸术compass 指南针指南针printing 印刷术印刷术 gunpowder 火火 药药造纸术造纸术印刷术印刷术 Look at the things.In what order do you think they were invented?1a1aA:I think the calculator was invented before the computer.B:well,I think the calculator was invented after the computer.Talk about with your parterner.Listen and match the inventions with the dates.1b1b_ 1876_ 1885_ 1927_ 1971_ 1976daecbSample dialogues:A:When was the telephone invented?B:I think it was invented in 1876.A:When was the car invented?B:I think it was invented in 1885.I think it was invented after the telephone.Pairwork1c1cWhen was the calculator invented?What is it used for?It is used for counting.What are they used for?They are used for giving light.light bulbsWhat is/are used for?Its/Theyre used for3122a2a Listen and number the inventions in the order that you hear them.InventionWho was it/were they invented byWhat is it/are they used for?shoes with adjustable heelsChelsea Lanmonscooping really cold ice creambattery-operated sneakersJayce Coziar and Jamie Ellsworthseeing in the darkheated ice cream scoopJulie Thompsonchanging the style of the shoes Listen again and match the items with their inventors and uses.2b2bRole play the conversations using the information in the chart above.A:What are they used for?B:Theyre used for seeing in the dark.2c2cPairworkOral Practice Sentence pattern:Who was it/were they invented by?It was/They were invented by.What is it/are they used for?It is/They are used for.The passive voice 被动语态被动语态 语态是表示主语与谓语的关系的。如果语态是表示主语与谓语的关系的。如果主语是动作的执行者，动词要用主动语态；主语是动作的执行者，动词要用主动语态；反之，如果主语是动作的承受者，动词就反之，如果主语是动作的承受者，动词就要使用被动语态。要使用被动语态。被动语态谓语部分结构为助动词被动语态谓语部分结构为助动词be+过去分词过去分词。各种句型的被动形式各种句型的被动形式注意：注意：这里这里 be 的形式决定了被动语态的的形式决定了被动语态的时态，其后的过去分词没有变化。时态，其后的过去分词没有变化。重点内容重点内容肯定句肯定句 主语主语+be+过去分词过去分词+(by)否定句否定句 主语主语+be not+过去分词过去分词+(by)一般疑问句一般疑问句 Be+主语主语+过去分词过去分词+(by)?特殊疑问句特殊疑问句 疑问词疑问词+be+主语主语+过去分词过去分词+(by)?Maria bought the book last year.(主动句主动句)The book was bought by Maria last year.When was the book bought by Maria?What was bought by Maria last year?被动句：被动句：让我们看一看各种句型的主动语态变为被让我们看一看各种句型的主动语态变为被动语态时，到底发生了什么变化？动语态时，到底发生了什么变化？时态时态主动语态主动语态被动语态被动语态一般一般现在时现在时一般一般过去时过去时一般一般将来时将来时do/doesis/am/are+donedidwill/be going to dowas/were+donewill be donebe going to be done时态时态肯定形式肯定形式 否定形式否定形式疑问形式疑问形式一般一般过去过去时时一般一般将来将来时时S+was/were+doneS+was/were+not+doneWas/Were+S+done?S+will notbe+doneS+am/is/aregoing to be doneAm/Is/Are+S+going to be done?S+am/is/arenot going to be doneWill+S+done?S+will be+doneIts used for scooping really cold ice cream.【经典习题】完成句子：【经典习题】完成句子：邮票是用来发送信件的。邮票是用来发送信件的。Stamps are _ _ _ letters.【要点点拨】【要点点拨】be used for doing sth.表示表示“被用于干某事被用于干某事”，意思与，意思与be used to do sth.相同。相同。如：如：The camera is used for taking photos.=The camera is used to take photos.used for sending【拓展延伸】【拓展延伸】be used as sth.表示表示“被用作某物被用作某物”。如：。如：English is used as the second language in many countries.be used by sb.表示表示“被某人使用被某人使用”，后，后接动作的执行者。如：接动作的执行者。如：These textbooks are used by students.be/get used to do sth.表示表示“习惯于做习惯于做某事某事”。如：。如：She is used to running every morning.used to do sth.表示表示“过去常常做某事过去常常做某事”。如：如：Miss Li used to dance after work.When was the car invented?It was invented in 1885.When were electric slippers invented?They were invented last year.Who were they invented by?They were invented by Julie Thompson.What are they used for?Theyre used for seeing in the dark.把下列句子改为被动语态。把下列句子改为被动语态。1.They made these computers in Shenzhen.These computers _ _ in Shenzhen.2.She bought a new bike yesterday.A new bike _ _ by her yesterday.were madewas bought3.The students clean the room every day.The room _ _ by the students every day.4.He will sing a new song at the party.A new song _ _ _ by him at the party.5.Students cant take the books out of the library.The books _ _ _ out of the library by students.is cleanedwill be sungcant be taken1.I feel very happy that I _ to be the host.Congratulations!(07 江西江西)A.choose B.am chosen C.was chosen D.haven chosen 2.Today Chinese _ by more and more people around the world.(07北京北京)A.was spoken B.is spoken C.spoke D.speak 3(课改实验区考生做课改实验区考生做)(07重庆重庆)Your hometown has changed a lot Yes.Take a look at these tall buildings.They _ last year A.build Bbuilt C.was built Dwere built (非课改实验区考生做非课改实验区考生做)Why is the classroom so dirty?Sorry,sir.It _ yesterday We forgot to do it A.dont clean B.didnt clean C.werent cleaned D.wasnt cleaned