九年级英语Unit9课件

1、Period 1No.7 Middle School Li Yamiaoget their ears pierceddo homework with friendsdo part-time jobs should be allowed toWhat are the Four Great Inventions in ancient China?Do you know?造纸术造纸术印刷术印刷术paper-makingprintingFour great inventionscompassgunpowderprintingpaper-makingcalculatorklkjuleit inventc

2、alculator be used for scoop adjustable v. 发明；创造发明；创造n.计算器计算器被用来做被用来做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-operated 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；加热；使变热使变热Words and expressions Look at the

3、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 with your parterner. Listen and match the inventions with the dates. 1b1b_ 1876_ 1885_ 1927_ 1971_ 1976daecb187618

4、851927 When was invented? It was invented in .19761971calculatorWhat is used for?Its used for.high heelsadjustable heelsadjustable 可调整的可调整的ice cream scoop heat 加热加热scoopslippersa batterybatteriesoperate 操作操作ListeningListen and number the inventions in the order that you hear.3122a2a Listen and numbe

5、r the inventions in the order that you hear them.Who Who werewere they they invented invented by?by?What What are are they they used forused for? ?adjustable 可调整的可调整的operate 操作操作 heat 加热加热 InventionWho was it/were they invented byWhat is it/are they used for?shoes with adjustable heelsChelsea Lanmon

6、scooping really cold ice creambattery-operated slippersJayce Coziar and Jamie Ellsworthseeing in the darkheated ice cream scoopJulie Thompsonchanging the style of the shoes Listen again and match the inventions with their inventors and uses.2b2bWhat is/are used for? Its/Theyre used forWhat is/are us

7、ed for?Its/Theyare used fortaking photoswriting on ittalking to friendsstudyingeatingcutting thingsknowing the time Try to be an inventor!used for walking and singing1. Whos the little baby in the photo,Li Ying? Its me .This photo _ fourteen years ago. (黄石中考黄石中考) A. was taken B. is taken C. took D.

8、takes2. 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. Look at these tall buildings. They _ last year A. build Bbuilt C. was built Dwere built 4. Why is the classroom so

9、 dirty? Sorry, sir. It _ yesterday We forgot to do it A. dont clean B. didnt clean C. werent cleaned D. wasnt cleaned( )5Whats it used for? Its used for _. A .cook B. cooking C .cooked D. to cookThe passive voice.被动语态的被动语态的:be动词动词+ (及物及物动词的动词的) 过去分词过去分词 一般现在时一般现在时一般过去时一般过去时am (is, are) + donewas (we

10、re) + 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 sendi

11、ng 【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 doing sth. 表示表示“习惯于习惯于做某事做某事”。如：。如：She is used to running every morning. used to

12、 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. Homework: Describe one of your inventionsAnd then write it down. 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.w

13、ere madewas bought3. The students clean the room every day. The room _ _ by the students every day.4. Students cant take the books out of the library. The books _ _ _ out of the library by students.is cleanedcant be takenOral Practice Sentence pattern:Who was it / were they invented by? It was / The

14、y 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

15、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 ye

16、ar. 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