一般过去时被动语态.ppt
Welcome ！,The Passive Voice,made by Achilles（Mr. Peng）,Grammar,The Passive Voice 被动语态,主动语态与被动语态： 英语中有两种语态，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。例如：,They make trains in Zhuzhou. （主动语态） Trains are made in Zhuzhou. （被动语态）,一般现在时的被动语态构成： am / is / are + 动词的过去分词,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。 例如：,Many people speak English.,English,is spoken,by,many people.,将下列的句子改为被动语态。 1. They speak English in Canada. 2. People use wood for making tables. 3. They make computers in the USA. 4. They grow rice in South China.,English is spoken in Canada.,Wood is used for making tables.,Computers are made in the USA.,Rice is grown in South China.,Teaching aims:,1、了解并掌握一般过去时被动语态的肯定句、否定句以及一般疑问句的结构 2、能从主动语态变为被动语态 3、能熟练运用一般现在时和一般过时的被动语态,自学任务（课本134-135） 一般过去时被动语态的三种句式结构,一般过去时被动语态的三种句式结构,肯定句： 主语+was/were+动词的过去分词（+by+动作执行者） 否定句： 主语+was/were+not+动词的过去分词（+by+动作执行者） 一般疑问句： Was/Were+主语+动词的过去分词（+by+动作执行者）,2. I bought a computer last term,A computer was bought (by me) last term.,The light was invented by him .,invent,He invented the light.,Jim rode the motorbike to his factory yesterday.,The motorbike was ridden to his factory yesterday.,They had an evening party last week.,An evening party was had last week.,The Great Wall was built by Chinese people many years ago.,Chinese people built the Great Wall many years ago.,The students planted many trees yesterday.,Many trees were planted by the students yesterday.,1.People use knives for cutting things. Knives _ _ for cutting things. 2.The students clean the windows of their classroom twice a month. The windows of their classroom_ _ twice a month.,are used,are,cleaned,(变被动语态）,七嘴八舌,3.I found the ticket on the floor. _ _ _ _ on the floor. 4.I told her to return the book in time. She _ _ to return the book in time.,The ticket was found,was told,3. We found the ticket on the floor .,5. Last year we built a library in our school. A library _ _ in our school last year.,was built,6. Did you plant many trees at this time last year? _ _ _ _ at this time last time?,Were many trees planted,7.The teacher asked Tom to turn on the computer. Tom _ _ to turn on the computer. 8.In this factory women do most of the work. Most of the work _ _ by women in this factory.,was asked,is done,Have a try,1. She invented tea by accident. 2. They dont wash their clothes every day. 3. The boy broke the door of the class.,Tea was invented by her by accident.,Their clothes arent washed by them every day.,The door of the class was broken by the boy.,4. We didnt solve the problem. 5. Did Mary finish the work?,The problem wasnt solved by us.,Was the work finished by Mary?,Fill in the blanks: Paper ( invent)_ in A.D.105 by Cai Lun in China. It is an important part of our everyday lives, but few people ever think about how it (make) _.Today most paper comes from trees. However, with the concern for the environment (考虑到环境) , more and more paper (produce) _from recycled paper products. Since paper products are of different qualities, they first(sort分类)_before they (recycle)_.The sorted material (put) _into a huge machine.,was invented,is made,is produced,are sorted,are recycled,is put,
