When_was_it_invented课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,When was it invented?,Section B,Who invented tea?,Did you know that tea,the most popular drink in,the world(after water),was invented by accident?,Although tea wasnt brought to the Western world,until 1610,this beverage was discovered over,three thousand years before that.According to an,Ancient Chinese legend,the emperor,Shen,Nong,Discovered tea when he was boiling drinking water,over an open fire.Some leaves from a nearby bush,fell into the water and remained there for some,time.The emperor noticed that the leaves in the,water produced a pleasant smell.Later he decided,to taste the hot mixture.It was quite delicious.And,in this way,one of the worlds favorite drinks was,invented.,Read the article and write answers to the questions.,What is the article about?,It is about the invention of tea.,It was invented over three thousand,years ago.,It was invented by the Chinese emperor,Shen,Nong,.,It was invented by accident.,3.Who was it invented by?,4.How was it invented?,2.When was it invented?,主动语态:,主语,是动作的,执行者,。,被动语态:,主语,是动作的,承受者,。,被动语态结构为：,be+过去分词,将下列句子变为被动语态。,1.,I,open,the door,.,The door,is,opened,by,me,.,2.,He,often,helps,homeless people,.,Homeless people,are,often,helped,by,him,.,3.,I,handed out,some papers,just now.,Some papers,were handed out,by,me,just now.,(主动语态),(主动语态),(主动语态),(被动语态),(被动),(被动语态),常用的被动语态短语,be made of,from,into,be used to do,for doing,as,由-制成的,看出原材料,看不出原材料,原材料制成成品,be filled with,be covered with,eg.1.Paper is made,wood.,from,2.Tables are made,wood.,3.Wood is made,paper and tables.,of,into,被用来-,被用作,用-充满,被-覆盖,Exercise,把下列句子变成被动句,1.Bell invented the telephone.,2.Tom bought some books yesterday.,The telephone,was invented,by,Bell.,Some books,were bought,yesterday,.,3.They visited the city last year.,4.Mr Green often invites me to his house.,5.People all over the world love football.,The city,was visited,by,them,last year,.,I,am,often,invited,by,Mr Green,to his house.,Football,is loved by,people all over the world.,6、They have grown rice in South China,.,7.We must plant more trees next year.,8.I am going to clean our classroom tomorrow.,More trees must be planted next year.,Our classroom is going to be cleaned tomorrow,.,Rice has been grown in South China.,汉译英。,（,1,）,计算机是何时发明的？,（,2,）谁发明了计算机？,（,3,）计算器是用来做什么？,（,4,）你认为什么是最有用的发明？,（,5,）每天它能够给人们更多时间工作和玩。,1.When,was,the computer,invented,?,2.Who,was,the computer,invented,by?,3.What,s,the calculator,used,for?,4.What do you think is the most helpful invention?,5.It gives people more time,to,work and play,every day.,变被动语态的特殊情况,一、双宾语,buy/make sb sth,=buy/make sth,for,sb,give sb sth,=give sth,to,sb,1.My father bought me a computer.,A computer was bought for me by my father.,I was bought a computer by my father.,2.He gives me a book.,A book is given to me by him.,I am given a book by him,Sth+be+过去分词+for/to sb+by sb.,Sb+be+过去分词 sth +by sb,二、无to不定式,一感 二听,三让,四看,feel,listen to.hear,let.have.make,watch.see.look atnotice,变为被动时加上to,eg.We often see him play basketball.,He,is often seen to play,basketball by us.,The boss made the children work for long.,The children,were made to work,for,long by the boss.,三、注意动词短语的,常考到的动词短语有,完整性,take care of,look after,listen to,speak to,eg.1.We should speak to the old politelyThe old should,be spoken to,politely,.,2.The nurse takes good care of the baby,.,The baby,is taken good care of,by the nurse,.,四、无被动语态的动词。,不及物动词及系动词,happen,take place,die,rise,come true,come out,eg.1.An accident,(happen)just now.,happened,2.Im sure that my dream,.,(come true)some day in the future,will come true,Goodbye!,