1、The fourth period Grammar学习目标1.掌握被动语态的结构。2.掌握一般现在时与一般过去时被动语态的构成。3.运用被动语态谈论事物。学习难点：运用被动语态谈论事物。一、自主学习Answer two questions: Where do ORBIS doctors do operations?What is needed by ORBIS to help blind people?你能区别哪句是主动语态哪句是被动语态吗？（1）_ (2) _.二、合作助学请画出用被动语态的句子：1) The cake was eaten by Daniel.2) Nancy bought
2、a book yesterday.3) The little dog is looked after very well by Simon.4) He is reading English.5) The computer is bought by my uncle .6) I am woken up by my father every morning. 三、点拨拓展1. 被动语态和主动语态的基本概念： 当主语是谓语的执行者时，用主动语态。当主语是谓语的承受者时，用被动语态。如：We clean the classroom every day.我们每天都打扫教室。The classroom i
3、s cleaned (by us) every day.教室每天都被(我们)打扫。2. 被动语态的基本构成： am/is/are + done was/were +done3. 被动语态的基本用法1) 动作的执行者是泛指或者不言自明时。The plane is used as a training centre.2) 在不知道动作的执行者是谁时。His eye problem was cured two months ago.3) 需要强调动作的承受者时。The lives of the patients with eye problems are improved.4) 出于委婉或礼貌而避谈
4、动作的执行者时。5) 在被动语态的句子中, 如果我们需要指出动作的执行者, 可以由by引出。6) 有些动词常用于被动语态。如：He was born in Nanjing. 他生于南京。The mobile phone was made in China. 这部手机是中国制造的。需要注意以下内容：1) 有些动词, 其主动语态形式含有被动意义。如: 系动词smell, taste, sound, feel等。 The dish smells good. 这道菜闻起来很香。 The music sounds nice. 这段音乐听起来不错。 2） 还有一些不及物动词,常用主动语态, 和well,
5、easily等副词连用, 含有被动意义。如: read, write, draw, sell, wash, cook, clean 等。 The books sell well. 这些书很畅销。 The pen writes smoothly. 这支笔写起来很顺滑。3) 在感官动词和使役动词的主动语态句式中, 动词不定式的to常省去, 但是在被动语态中要加上to。 My mother makes me look after my brother after school. 主动语态 I am made to look after my brother by my mother after sc
6、hool. 四、课堂检测将下列句子改为被动语态1. He bought a CD-ROM last year. A CD-ROM last year.2. He organizes activities of the Computer Club.Activities of the Computer Club .3.Does everyone in the world know the Great Wall? the Great Wall in the world?4.I gave him a present yesterday. A present him yesterday.5.The wo
7、rkers built the bridge in 2004.The bridge _the workers in 2004.把下列主动语态的句子变为被动语态,或把被动语态的句子变为主动语态。1. Tom often helps Jenny when she is in trouble.2. I bought a computer last week.3. The whole cake was eaten by Eddie yesterday.4. Many trees are planted by students and teachers every year.5. She takes good care of the children.翻译下列句子：1. 这支歌经常被孩子们唱。2. 我们昨天被他警告了。3. 英语现在被许多人讲。4. 人民大会堂被建于1959年。（The Great Hall of the People）5. 上个月许多钱被捐给了曲畅。6. 那个小孩昨天早上被送去了医院。7. 这些照片去年在长城上拍的。8. 前天我被告诉了那个消息。教后反思：通过本节课的教学，学生知道了被动语态的结构。但是大部分学生不能熟练运用被动语态谈论事物，还需要课后的进一步巩固。