新目标英语九年级公开课课件unit9SectionA.ppt

1、,Unit9 When was it invented?,Chinese inventions,compass,powder,papermaking,printing,Do you know who invented paper?,It was invented by Cai Lun.,What was it used for?,It was used for writing.,be used for 用来做,e.g The knife is used for cutting.,这把小刀是用来切东西的,What is it used for?,It is used for counting.,

2、calculator,hand-held calculator,What are they used for?,They are used for giving light.,light bulbs,What is it used for?,microwave oven,It is used for heating food.,1b,Listen and match the inventions with the dates.,a,b,e,d,c,1876 1885 1927 1971 1976,d,a,b,e,c,1876,1885,1927,1971,1976,part 5,When wa

3、s the car invented? It was invented in 1885.,battery-operated slippers,heated ice cream scoop,shoes with adjustable heels,电池供电 的拖鞋,加热的 冰激凌勺,可调节 后跟的鞋,2a,Listen and number the inventions in the order that you hear.,3,1,2,2b Listen again. Match the inventions with their inventors and uses.,Invention sh

4、oes with adjustable heels battery-operated slippers heated ice cream scoop,Who was it/ were they invented by? Chelsea Lanmon Jayce Coziar and Jamie Ellsworth Julie Thompson,What is it/ are they used for? scooping really cold ice cream seeing in the dark changing the style of the shoes,A: What are th

5、ose ?,B: They are battery operated slippers.,A: _ are they used for ?,What,B: They _ _ for seeing in the dark.,A: Thats cool! _ were they invented _?,B: Julie Thompson. And look at this heated _ _ _.,A: I know what its for. Its used for _,out really cold ice cream.,are,used,Who,by,cold,ice,cream,sco

6、oping,B: Right. It _ _ by Chelsea,A: My favorite are those shoes with,_ heels. You know you can move the heels _and_,up,down.,They were invented _ Jayce Coziar,and Jamie Ellsworth.,was,invented,adjustable,by,B: And what are they used for?,A: Well, you can change the _ of your shoes. You can _the sho

7、es go,from casual to dressy.,Lanmon,style,make,The passive voice.,被动语态,英语中动词有主动语态和被动语态两种语态. 主动语 态表示主语是动作的执行者,被动语态表示主语是动作的 承受者, 在被动语态中动作的执行者有时用by短语表示 出来.,被动语态的构成:,助动词be+ (及物动词的) 过去分词,一般现在时,一般过去时,The passive voice.,被动语态,被动语态的用法:,不知动作执行者时,常用被动语态. eg. My bike was stolen yesterday. This car is made in Am

8、erica. 2. 不必要说出动作执行者时,常用. eg. Rome was not built in a day. 3. 为了突出强调动作的承受者时,常用被动语态. eg. Thousands of beaches are polluted (污染).,The 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 invented 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,The passive

9、voice.,被动语态,主动语态变为被动语态的步骤:,把原主动句中的宾语转换为被动语态的主语. 2.把动词改为被动形式,即 “be + 过去分词” . 注意 be 动词要按新的主语的人称和数进行变化,时态要和原来 的主动语态的时态保持一致. 3. 原来主动语态句中的主语,如果需要,就放在by后面 以它的宾格形式出现. 如果没有必要就可以省略.其他的 成分 (定语,状语) 不变, 句式也不能变.,变被动语态时需要注意的事项,一变 二套 三注意,宾变主，主变宾，宾语前面要by跟，谓语动词变过分，不忘前面be动词跟,套时态，主被动时态一致,注意因人称的变化而引起的主谓一致问题。,把主动语态变成被动语

10、态 1.We built this library last year. 2.I watched a play yesterday evening. 3.He planted a tree with his brother . 4.She heard me sing in the next room . 5.They didnt finish their homework yesterday 6.They used the knife to cut the meat. 7.They flew a kite last week. 8.He asked me not to go there.,Homework: 1.根据时间和人物写出发明物. 1885- 1876- 1927- 1976- Julie Thompson- Chelsea Lanmon- 2.回答问题 (1) When was the car invent