主动语态与被动语态课件.ppt

6.Now people can use computers to help them. Now computers _______ ______ ______ to help them. can be used 口诀： 这些动词真奇怪，主动句中to 离开，被动句中to回 来。（hear, let，have, make, see, watch…) The light was invented by Thomas Edison . invented Thomas Edison 二、用所给词的正确形式填空 。 (cover, invent, answer, write, return, call) 1. All the questions_____________ correctly. 2. More than two thirds of the earth ________ with water. 3. Our city Beijing. 4. All the magazines _________________ to the school library last week. 5. This new machine _____________ by Mr. Black last year. 6. All the words on the back of the card. is covered were returned was invented was answered is called are written Passive Voice 被动语态 I believe I can fly This song is enjoyed by people all over the world. English is spoken by the most people in the world. is spoken people English The Great Wall was built by Chinese people. The Great wall built The trees were planted by students. trees planted 英语动词有两种语态： 主动语态 (the Active Voice) 被动语态(the Passive Voice) What is it? A. 主动语态表示主语是动作的执行者。 B. 被动语态表示主语是动作的承受者。 We planted the tree. The tree was planted by us. 被动语态结构： be + 过去分词(P.P) + (by …) 主变被解题步骤: 1. 找宾语 ----即动作的承受者 They make shoes in that factory. Shoes 2. 判断宾语的单复数 ----即be动词的单复数. are were 3. 判断动词的时态 ----即be动词的时态. 4. 修改谓语的时态 ----即原句动词改为过去分词 made 5. 修改原句的主语 ----即by+ 主语. by them. We cleaned the classroom yesterday. The classroom was cleaned yesterday. by us 一般现在时的被动语态： am/are/is + 过去分词+(by…) 1. People play football all over the world. 2. Mr. Green teaches us this term. Football all over the world . We this term. is played by people are taught (by Mr. Green) 一般过去时的被动语态： was/were + 过去分词+(by…) 3. People built the Great Wall long ago. 4