人教版九年级Unit6SectionA2a-2c课件

1、Unit 9 When was it invented? Period 2 Section A 2a-2celectricity /ilektristi/ n. 电；电能In modern cities we cant live happily without electricity.知识拓展electricity 电，名词；如No electricity ,no modern life.没有电就没有现代生活。electric，形容词，电的，如electric light；电灯；electrical, adj, 电的，与电有关的， 如electrical appliance（家用电器）；ele

2、ctronic, adj,电子的Electronic book 电子书1. electric为“用电的，带电的”，指任何电动的或发电的装置，被修饰的物体本身可带电。如: electric light, electric stove, electric piano, electric motor, electric bell。又如： Please connect the two electric wires. 请将这两根电线接起来。 With this electric blanket, the grandpa wont feel cold in winter. 有了电热毯，到了冬天爷爷就不觉得

3、冷了。2 electrical为“电的，与电有关的，电气科学的”，指与电有关的事物，被修饰的词本身并不能带电。 如：electrical engineer, electrical energy, electrical engineering。又如： All the electrical work was done by my younger brother. 所有的电工活都由弟弟来干。He buried himself in an electrical book. 他埋头读一本电学方面的书。heel /hi:l/ n. 鞋跟；足跟Nowadays the heels of womens sho

4、es are higher and higher, more and more beautiful.scoop /sku:p/ n.勺; 铲子I havent seen so many kinds of scoops when I was a kid, especially scoops with light.style/stail/ n. 样式; 款式Everyone should have his or her own lifestyle in the modern world.New wordsheel /hi:l/ n. 鞋跟；足跟electricity /ilektristi/ n.

5、 电；电能scoop /sku:p/ n.勺; 铲子 style/stail/ n. 样式; 款式A: When was the _ invented?B: I think it was invented in _.Review 1976188518761927The passive voice.被动语态主动语态改被动语态:Bellinvented the telephonein 1876.wasbyThe passive voice.被动语态主动语态变被动语态的结构图:Bell invented the telephone in 1876. The telephone was invente

6、d by Bell in 1876. 主语谓语动词过去时宾语时间状语主语谓语动词的过去分词宾语时间状语 alarm clock (1350)Eric A: When was it invented ?B: It was invented in A: Who was it invented by?B: It was invented bymicrowave oven (1947)Spencer Lead-in light bulb1879When was it invented?It was invented in 1879.Who was it invented by ?It was inve

7、nted by Edison.Whats it used for?Its used for seeing in the dark.Car1885When was it invented?Who was it invented by ?What is it used for?Benz.It was invented in 1885.It is used for traveling fast.It was invented by Benz.invent v. 发明，创造发明家，创造者n. inventioninventorEdison was a great _. He _ 1093 things

8、. His _ are very important to us. 爱迪生是一位伟大的发明家，他发明了1093样东西，他的发明对我们很重要。inventorinventedinventions2aListen and number the inventions inthe order that you hear.1232b listen match the inventions with the people.Julie ThompsonShoes with lightsChelsea LanmonHot ice- cream scoopJayce Coziar and Jamie Ellsw

9、orthshoes with special heels2b listen match the inventions with their uses.changing the style of the shoes.Shoes with lightsseeing in the dark.Hot ice- cream scoopserving really cold ice cream.shoes with special heels2b listen and check your answers. InventionWho was it/were they invented byWhat is

10、it/are they used for?shoes with special heelsChelsea Lanmonserving really cold ice creamShoes with lightsJayce Coziar and Jamie Ellsworthseeing in the darkhot ice- cream scoopJulie Thompsonchanging the style of the shoes Listen again and match the items with their inventors and uses.2bSummaries 1. s

11、hoes with special heels特殊后跟的鞋子 2. hot ice cream scoop 热的冰其淋勺子 3. run on electricity 电动的 4. be used for被用作5. the subject for my school project学校项目的课题 6. our daily lives我们的日常生活 7. have a point有点道理Guessing game!potato chips1850 18701853When was it invented ?lollipop1950 19801958When was it invented ?S1

12、: What are these?S2: They are shoes with lights.S1: What are they used for?S2: They are used for seeing in the dark.S1: Who were they invented by?S2: They were invented by Julie Thompson.2cS1: What is this?S2: This is a hot ice- cream scoop. It runs on electricity.S1: What is it used for?S2: It is u

13、sed for serving really cold ice cream.S1: Who was it invented by?S2: It was invented by Chelsea Lanmon.2cS1: What are these?S2: They are shoes with special heels.S1: What are they used for?S2: They are used for changing the style of the shoes.S1: Who were they invented by?S2: They were invented by J

14、ayce Coziar and Jamie Ellsworth.2cGrammar focusWhen was the car invented?It was invented in 1885.When were shoes with lights 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.Language points

15、1. Light的用法一、用作形容词,表示“轻的”、“少量的”、“浅色的”等意思。例如:A re these bags heavy?这些包很重吗?N o, they re light.不,不重。I got up late this morning, so I had a light breakfast and went to school.今早我起床晚了,所以吃了一点儿就上学了。I like light green but Lily prefers dark blue.我喜欢浅绿色,但是莉莉喜欢深蓝色。二、用作不可数名词,表示“光线”、“光源(如蜡烛或灯)”等意思。例如:Now there w

16、as enough light, so the doctor was able to see clearly.现在有了足够的光线,因此,大夫能够看清楚。In the dim light ,a girl was playing the piano.在昏暗的灯光下，一位女孩在弹钢琴。三、用作可数名词,表示“灯、电灯”Turn right at the traffic lights.在红绿灯处右转。There are 12 lights in our classroom.我们的教室里有12盏电灯。四、用作动词，点亮 、点燃意思。比如 light the candle/cigarette/fire.点

17、蜡烛、点香烟、点火Every night she must light the candle for her disabled grandma.每天晚上她为行动不便的奶奶点蜡烛。2.Its used for serving really cold ice cream.【经典习题】完成句子：邮票是用来发送信件的。Stamps are _ _ _ letters.【要点点拨】be used for doing sth. 表示“被用于干某事”，意思与be used to do sth.相同。如：The camera is used for taking photos. = The camera is

18、 used to take photos. used for sending 【拓展延伸】be used as sth. 表示“被用作某物”。如：English is used as the second language in many countries. be used by sb. 表示“被某人使用”，后接动作的执行者。如：These textbooks are used by students. be / get used to doing sth. 表示“习惯于做某事”。如：She is used to running every morning. used to do sth.

19、表示“过去常常做某事”。如：Miss Li used to dance after work. 及时练1. 在中国英语作为外语来使用。_2.教师用粉笔。_3.毛衣是用来保暖的。_【解析】1. English is used as a foreign language in China. 2. Chalk is used by teachers. 3.A sweater is used for keeping warm.3、with用法小结一、with表拥有某物Mary married a man with a lot of money .马莉嫁给了一个有着很多钱的男人。I often drea

20、m of a big house with a nice garden .我经常梦想有一个带花园的大房子。The old man lived with a little dog on the lonely island .这个老人和一条小狗住在荒岛上。 二、with表用某种工具或手段I cut the apple with a sharp knife .我用一把锋利的刀削平果。Tom drew the picture with a pencil .汤母用铅笔画画。We see with our eyes and we hear with our ears.我们用眼睛看，用耳朵听。三、with表

21、人与人之间的协同关系make friends with sb talk with sb quarrel with sbstruggle with sbfight with sbplay with sbwork with sbcooperate with sb四、with 表原因或理由John was in bed with high fever .约翰因发烧卧床。He jumped up with joy .他因高兴跳起来。Father is often excited with wine .父亲常因白酒变的兴奋。五、with 表“带来”，或“带有,具有”，在身上，在身边之意The girl

22、with golden hair looks beautiful .那个金头发的女孩看起来漂亮。The famous director will come to the meeting with the leading actor and actress. 那个有名的导演将带着男女主角来到会场。A storm with a hurricane has come onto its way .带有飓风的风暴要来了。Do you have money with you .身上带着钱吗？ Take the umbrella with you in case it rains .随身带伞，以防下雨。Exercise 完成句子：1.汽车是什么时候发明的？它是在1885年被发明的。When _ the car_? It _ _ _1885.2. 带灯的鞋子是什么时候发明的？是去年发明的。When _shoes with lights _ _? They _ _ last year.was inventedwas invented inwere inventedwere invented3. 他们是谁发明的。是朱丽.汤普森发明的。_ were they _ _? They