(
课件网) 当主语是动作的执行者时，动词用主动语态（Active Voice）；如果主语是动作的承受者，动词便用被动语态（Passive Voice）。 Many students study English.(主动语态) English is studied by many students.(被动语态) 结构是 be+动词的过去分词 (be+V.P.P) 2)被动语态的结构： 被动语态由“be+动词的过去分词”构成，助动词be有人称、数的变化,其时态变化规则与be作为连系动词时一样。 如：The desk is made of wood. The desks are made of wood. He is asked a question by the teacher. I am given a nice present by my friend. 在改写中应注意： 1.把原来的宾语提到前面作被动语态的主语; 2.把动词变成“be + 过去分词”; 3.主动语态中的主语变为介词by的宾语。 典型题例 例1 将下列句子改为被动语态。 We clean our classroom every day. Our classroom is cleaned (by us) every day. 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 3. 判断动词的时态 --即be动词的时态. 4. 修改谓语的形式--即原句动词改为过去分词 made 5. 修改原句的主语 --即by+ 主语.（主格变宾格） by them. 6. 句式同步--即主动句是否定形式，被动句也是否定形式。 主动句是一般疑问，被动句一样。 一般现在时的被动语态： am/are/is + 过去分词 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) . They bought ten computers last term． Ten computers were bought (by them) last term. 一般过去时：S+was/were +过去分词 一般过去时的被动语态： 一般过去时的被动语态： was/were + 过去分词 . People built the Great Wall long ago. . Two years ago we used the machines to make shoes for children. shoes for children. The Great Wall was built (by people) long ago. Two years ago those machines were used (by us) to make for children. He bought some fruits yesterday. Some fruits were bought yesterday. 3.They will finish the work in ten days. The work will be finished (by them) in ten days. 一般将来时： S+ will/be going to+be+过去分词 一般将来时的被动语态： 一般将来时的被动语态： will / be going to + be + 过去分词 6. We will write a diary next class. 7. Tom is going to hold a birthday party. . A diary will be written (by us) A birthday party is going to be held by Tom They are going to have an evening party tomorrow. An evening party is going to be had tomorrow. 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. His mother had two meals a day. Two meals _____ _____ by his mother a day. 6.People will use computers to help them. Computers _____ _____ _____ to help them. were had will be used 7. Did you plant many trees at this time last year _____ _____ _____ _____ at this time last year 8.Will you finish your work tomorrow _____ your work____ _____ tomorrow Were many trees planted Will be finished 9. The foreign friends gave some wonderful stamps. Some ... ...
