1、When was it invented ?,Unit 6,Section A 1a-2c,.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执行者; 被动语态表示主语是动作的承受者。,主动语态,被动语态,主动语态,被动语态,主动语态变被动语态的步骤： 1、主动语态的宾语变为被动语态的主语； 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by 引出，当不强调动作的执行者时，常省略。 4.其它成分不变。,主动语态变被动语态规则宾语提前变主语，原主变宾by后见
2、，记住时态不要变，还有人称be关键。,They play football on Sunday.Lucy does the homework in the evening.We make these machines in Beijing.,Football is played by them on Sunday.,The homework is done by Lucy in the evening.,These machines are made in Beijing.,Learning aims:,2).The key sentences: When was the car invent
3、ed?It was invented in 1885.What are they used for? They are used for giving light.,3).Language goal:Talk about the inventions. Let Ss learn about what they are used for.,1). New phrases:,be invented be used for the style of the shoes,What are the Four Great Inventions in ancient China?,Do you know?,
4、paper-making 造纸术,compass 指南针,printing 印刷术,gunpowder 火 药,Cai Lun invented the paper making in 105 .,invented,the paper making,in 105 .,Cai Lun,The paper making,by,invention,invent,inventor,Cai Lun in 105,was invented,When were they invented?,They were invented in1879.,light bulbs,1879,1876,1885,1927,
5、1971,When was the car invented?It was invented in 1885.,What are they used for?,They are used for giving light.,light bulbs,seeing in the dark.,microwave oven,It is used for cooking and heating food,(加热),What is it used for?,Task : Do you know what they are used for?,1.talking with the person who is
6、nt near 2.taking photos 3.cooking 4.eating food 5.keeping away from the rain 6.waking us up,The is/are used for ing.,Look at the things.,1a,4,2,1,3,Read and match the inventions with the dates.,1b,_ 1876 _ 1885 _ 1927 _ 1971,d,a,c,b,a,b,c,d,2a,3,1,2,Read again and complete the chart below,2b,changin
7、g,in the dark when you get up at night,serving,2).The key sentences: When was the car invented?It was invented in 1885.What are they used for? They are used for giving light.,1). New phrases:,be invented be used for the style of the shoes,课堂小结,用“invented” 或 “used for”填空. 1. What are chopsticks _? 2.
8、 Who was the telephone _ by? 3. When was tea _? 4. What are microwave ovens _? 5. When were potato chips _?,EXERCISES,used for,invented,used for,invented,invented,被动语态专项练习 .据划线部分提问1.Glasses were invented in 1450.2.The bottle machine was invented by Michael Owens .3.Dictionaries are used for looking
9、up words.,When were glasses invented?,Who was the bottle machine invented by?,What are dictionaries used for ?,把下列的句子变为被动语态的句子： 1、They speak English in Canada .2、People used wood for making tables. 3、The shoes are made in America.,English is spoken in Canada (by them).,Wood was used for making table
10、s.,对划线部分提问,Where are the shoes made?,Exercises： 1.Many people speak English.2.People used knives for cutting things.3.We should clean the classroom every day.4.She will repair the bike tomorrow.,English is spoken by many people.,Knives were used for cutting things by people.,The classroom should be cleaned every day.,The bike will be repaired by her tomorrow.,
