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1、,教学目标：1.说出被动语态的基本构成和各种 时态的构成形式；2.熟记情态动词的被动语态形式;3.会把主动句变为被动句。,被动语态,概念与构成,概念：,基本构成：,各种时态,一般现在时,一般过去时,主动变被动,用法（什么情况用被动）,基本三步骤,含动词短语,带双宾语和复合宾语,情态动词,Cooperation and communicate,小组合作展示交流,Practice makes perfect,熟能生巧,重点考点：各种时态的被动语态,1. Now English _B_ by more and more people all over the world. A. speaks B.
2、is spoken C. was spoken,一般现在时态的被动语态： am / is / are + V(p.p.),2. A letter _B_ to her father by him last night. A. writes B. is written C. was written,一般过去时态的被动语态： was / were + V(p.p.),3. To my surprise, a new library _A_ in our school next year . A. will be built B. is built C. was built,一般将来时态的被动语态：
3、 will / shall + be + V(p.p.),4. Three bridges _C_ since last year in the village. A. have built B. were built C. have been built,现在完成时的被动语态： have / has + been + V(p.p.),You must clean your bedroom every day. Your bedroom _ every day.,must be cleaned,2.Parents should encourage teenagers to do social
4、work for their community. Teenagers _ to do social work for their community.,should be encouraged,本单元重点考点：含有情态动词的主动变被动,3.Can Lucy do her homework tomorrow instead? _ Lucys homework_ tomorrow instead?,4.Do you think we must keep teenagers away from the Internet? Do you think teenagers _ away from the
5、 Internet?,must be kept,Can be done,5.Parents should give teenagers chances to make their own decisions. Teenagers _ chances to make their own decisions.,should be given,4b Fill in the blanks with the correct forms of the words in brackets.,be asked,are allowed,be educated,start,move,take,continue,4
6、c You and your friend are starting an Enghish club. Make a list of rules about what should and should not be allowed.,Eg: 1.Members should be allowed to use dictionaries. 2. 3. 4. 5.,Summary,课堂小结,Thank you!,Homework1. Review the usage of the passive voice .2. Finish your mind map and do some exercises .,