九年级第九单元课时2 (2)

1、When,was,it,invented,?,Unit 9,Who were they invented by? What are they used for?,Some strange inventions,be used for scoop adjustable,用来做 v. 用勺舀 n. 勺子；球形勺；长柄勺 adj. 可调整的,heel battery operate battery-operated slipper heat,n. （鞋、袜等的）后跟；(足) 跟 n. 电池 v. 操作；作业 电池供电的 n. 拖鞋 v. 加热；使变热 n.高温,可调整鞋跟皮鞋,电池供电拖鞋,加热冰激

2、凌勺,Listening,Listen and number the inventions in the order that you hear.,2a,3,1,2,Listen again and match the items with their inventors and uses.,a.a. Heated b. slippers c. used for d. style e. adjustable f. scooping Boy: What are those? Girl: Theyre battery-operated _. Boy: What are they used for?

3、 Girl: Theyre _seeing in the dark. Boy: Oh, thats cool! Who were they invented by? Girl: Julie Thompson. And look at this _ice cream scoop. Boy: I know what its for ! Its used for_out really cold ice cream. Girl: Right. It was invented by Chelsea Lanmon. Boy: My favorite are those shoes with _heels.

4、 You know,you can move the heels up and down. They were invented by Jayce Coziar and Jamie Ellsworth. Girl: And what are they used for? Boy: Well, you can change the_of your shoes. You can make the shoes go from casual to dressy.,b,a,d,e,c,f,shoes with adjustable heels,What are they?,Who were they i

5、nvented by?,Jayce Coziar and Jamie Ellsworth,changing the style of the shoes.,What are they used for?,Practice:,battery-operated slippers,Julie Thompson,seeing in the dark,What are they?,Who were they invented by?,What are they used for?,heated ice cream scoop,Chelsea Lanmon,scooping cold ice cream,

6、What is it?,Who was it invented by?,What is it used for?,Grammar Focus,用“invented” 或 “used for”填空. 1. What are electric slippers _? 2. Who were shoes with adjustable heels _ by? 3. When was tea _? 4. What are microwave ovens _? 5. When were potato chips _?,EXERCISES,used for,invented,used for,invent

7、ed,invented,.主动语态与被动语态： 英语动词有两种语态,即主动语态(The Active Voice)与被动语态（The Passive Voice)。 主动语态表示主语是动作的_ 被动语态表示主语是动作的_,主动语态,被动语态,主动语态,被动语态,执行者,承受者,e.g Many people speak English.,主动语态变被动语态的步骤： 1、主动语态的_ 变为被动语态的 _； 2、主动句的谓语动词变为被动结构； 3、主动句的主语变为被动句的宾语，由_ 引出，当不强调动作的执行者时，常省略。 4.其它成分不变。,宾语,主语,by,把下列的句子变为被动语态的句子： 1、

8、They speak English in Canada . 2、People used wood for making tables. 3、They are making computers in the USA.,English is spoken in Canada(by them).,Wood was used for making tables.,Computers are being made in the USA.,把被动句变否定,Computers arent being made in the USA.,4、They have grown rice in South China. 5. We must plant more trees next year. 6.I am going to clean our classroom tomorrow.,More trees must be planted next ye