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 serious problem.
French is also taught by our school.
A library with five thousands books are offered to the nation as a gift.
改错inis