课件19张PPT。被动语态 Passive voice语言知识目标：学习被动语态的结构，掌握被动语态的使用 语言技能目标：能在听说读写中熟练使用被动语态 情感态度目标：在学习中培养思考与合作的精神 学习策略目标：学会总结所接触的语言材料中的语言规律并加以应用 Learning Aims 主动语态 (Active Voice) 被动语态 (Passive Voice) A. 主动语态———主语是动作的执行者。 We planted the tree. B. 被动语态———主语是动作的承受者。 The tree was planted by us. 两种语态概念何时使用被动语态？ 1、不知道或没有必要指出动作的执行者时。 2、强调动作的承受者时。被动语态的形式be＋done主动语态和被动语态结构的转换： We clean our classroom every day.Our classroomis cleaned主语谓语宾语by usevery day.结构： 主动语态：主语＋谓语＋宾语 被动语态：主语be +doneby+宾语即:主变宾、宾变主,谓语动词变被动。归纳总结方法 把主动语态改为被动语态可按“ 、 、 ”来进行。即： ①一变－－－把主动语态的宾语改为被动语态的主语， 把主动语态的主语改为被动语态的介词by的宾语。 ②二套－－－根据原句的时态套用相应时态。 ③三注意－－注意人称的变化而引起的主谓一致问题。 eg. Many people speak English. English by many people.is spoken一变二套三注意常见时态的主动语态和被动语态谓语结构对照总结am/is/are+donewas/were+donewill/shall+be+doneam/is/are+being+donewas/were+being+donehave/has+been+donehad+been+donewill/shall+have been +done 情态动词+be+done一般现在时We clean the classroom everyday. The classroom主语＋am/is/are done ＋其他常见时态的被动语态结构：everyday.by us is cleaned 一般过去时We cleaned the classroom yesterday. The classroom主语＋was/were done ＋其他常见时态的被动语态结构：yesterday.by us was cleaned 一般将来时We will clean the classroom tomorrow. The classroom主语＋will/shall be done ＋其他常见时态的被动语态结构：tomorrow.by us will be cleaned 现在进行时We are cleaning the classroom now. The classroom主语＋am/is/are being done ＋其他常见时态的被动语态结构：now.by us is being cleaned 过去进行时We were cleaning the classroom at this time yesterday. The classroom主语＋was/were being done ＋其他常见时态的被动语态结构：at this time yesterday.by us was being cleaned 现在完成时We have cleaned the classroom. The classroom主语＋have/has been done ＋其他常见时态的被动语态结构：by us. has been cleaned 过去完成时We had cleaned the classroom a few days ago. The classroom主语＋had been done ＋其他常见时态的被动语态结构：by us had been cleaned a few days ago.将来完成时We will have cleaned the classroom before tomorrow morning. The classroom主语＋will/shall have been done ＋其他常见时态的被动语态结构：by us will have been cleaned before tomorrowmorning.含情态动词的被动语态We can easily clean the classroom. 常见的被动语态结构：情态动词＋be done＋其他The classroom can be easily cleanedby us.Fill in the blanks with the right form of the words given:The work _____ (finish) tomorrow. 2. The new building _____ (build) now. 3. “How about the dishes, Dear?” “The beef didn’t taste very good. It _____ (cook)too long.”will be finished is being builthad been cookedLots of studies have been shown that global warming has already become a very ... ...
