Unit 3 Computer
第4-5课时grammar （现在完成时被动语态）学案
班级姓名学号
一教学目标
目标：1.To help students build their word power by means of word formation
2.To help students understand and use the future pass ive voice
二问题与例题
问题一同学们找到文章中用到现在完成时被动语态的句子？
问题二现在完成时的被动语态的结构是怎么样的？
小问题1 现在完成时的结构
小问题2 被动语态的结构
Eg: The project of rebuilding We chuan hasn’t been finished yet. 汶川的重建工程还没有完成。
问题三主动语态变被动语态的方法？
设计意图：通过讲解主动语态变被动语态的方法，可以让学生进一步的了解被动语态的相关用法
师生活动：1 老师给出例句 2 让学生观察讨论归纳 3 叫学生起来回答老师补充
(1) 把主动语态的宾语变为被动语态的主语。
(2) 把谓语变成被动结构(be＋过去分词)
(根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。
(3) 把主动语态中的主语放在介词by之后作宾语, 将主格改为宾格。例如：
主动：All the people laughed at him. 被动：He was laughed at by all people.
主动：They make the bikes in the f actory. 被动：The bikes are made by them in the facto ry.
(4) 双宾语动词变被动语态可将其中的一个宾语变为主语，另一个保留不动。
主动：I have given him the key.
被动：He has been given the key.
被动：The key has been given _____him.
(5) 带复合宾语的动词变被动语态时, 只能将宾语变为主语, 原来的宾补保留不动，改
称主语补足语。
主动：I have asked her to help you. 被动：She has been asked to help you.
变式练习：
1. Hundreds of jobs ________ if the factory closes.
A. lose
B. will be lost
C. are lost
D. will lose
2.The mayor of Beijing says that all construction work for the Beijing Olympics ________ by 2006.
A. has been completed
B. has completed
C. will have been completed
D. will have completed
3. All the preparations for the task ________, and we are ready to start.(NMET2000春招)
A. completed
B. complete
C. had been completed
D. have been completed
三目标检测
1. Paper money ____ for over a thousand years.[来源学科网ZXXK]
A. used
B. has been used
C. has used
D. is using
2. Come and sit down by the fire. Your hand _ ___ cold.
A. has been left
B. feels
C. is left
D. has left
3. Till now, three films ____ in that small village this month.
A. have shown
B. have been shown
C. were shown
D. will be shown
4. Do you know the thief _____ by the police?
A. has caught
B. has been catching
C. was caught
D. has been caught
5. My sister is working in the power plant that _____ for just one year.
A. was used
B. has been used
C.is used
D. has used
四配餐作业
A 组