课内比教学公开课教案
复习英语被动语态（Passive Voice）
通城县关刀中学 九年级英语组 王文书 教学目标
知识与能力：掌握主动语态、被动语态互变，被动语态的时态及用法。 过程与方法：通过比较、讲解、训练使学生学会运用被动语态。 情感价值观：通过学习，学会变被动学习为主动学习。 教学重点：被动语态的基本运用
教学难点：主动语态、被动语态互变，被动语态的时态及用法。 教学方法：讲练结合法，比较法 教学准备：多媒体课件
Step 1: Greet and revision
1. Greet the students with each other. 2. Review all the tenses that have learnt.
Step 2:语态概述
这一节课我们主要复习前面我们学习过的动词的被动语态，在讲练的过程中，看谁掌握得好，我们分男女生两大组比赛进行，OK？If you do a good job, you’ll have a star。
英语的语态是通过动词形式的变化表现出来的。英语中动词有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者。 例如：Many people speak Chinese.
谓语：speak的动作是由主语many people来执行的。
被动语态表示主语是动作的承受者，即行为动作的对象。只有及物动词才有被动语态。例如：Chinese is spoken by many people.主语English是动词speak的承受者。
Step 3: 被动语态的构成
1叫我位学生一写一讲小结：被动语态由“助动词be＋及物动词的过去分词”构成。人称、数和时态的变化是通过be的变化表现出来的。现以speak为例说明被动语态在各种时态中的构成。
①含有情态动词的主动句变成被动句时，由“情态动词＋be＋过去分词”构成， ②一般现在时：am／is／are＋spoken ③一般过去时：was／were＋spoken
④一般将来时：will／shall be＋spoken 或 is/am/are going to be spoken ⑤现在进行时：am／is／are being＋spoken ⑥过去进行时：was/were being＋spoken ⑦现在完成时：have／has been＋spoken ⑧过去完成时：had been + spoken
⑨过去将来时：would be＋spoken 或 was were going to be spoken
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2 do exercises: ①The classroom (clean) every day.②The jobs (do) last night.③ The sports meeting (hold) next Friday. ④My homework (finish)already. Step 4:被动语态的用法 学生讲解，老师补充英语及物动词被动语态的用法： （1）不知道或没有必要说明动作的执行者是谁。 例如：Some new computers were stolen last night. 一些新电脑在昨晚被盗了。（不知道电脑是谁偷的） This bridge was founded in 1981.这座桥竣工于1981年。 （2）强调动作的承受者，而不强调动作的执行者。 例如：The glass was broken by Mike.玻璃杯是迈克打破的。 This book was written by him.这本书是他写的。 Your homework must be finished on time.你们的家庭作业必须及时完成。 Step 5: 主动语态变被动语态的方法 1学生试讲如何把主动语态改为被动语态： （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： All the people laughed at him. He was laughed at by all the people. 2 do elementary exercises: ①We speak Chinese. →Chinese is spoken by us. ②They make the bikes in the factory. → The bikes are made by them in the factory. ③He cut down a tree. →A tree was cut down by him. 3 do improved exercises: ①We don’t do our homework on Sundays. → ② Does she finish her work on time? → ③ Who invented the car? → Step 6: 被动语态常见考点 1主动语态中原来带不带to的动词不定式改为被动语态后要to The boss made his workers work for 10 hours last night. →His workers were made to work for 10 hours by the boss 小结：主动语态句型(find/watch/notice/feel/see/hear/make/have/let sb do sth)中原来带不带to的动词不定式do, 改为被动语态后要to,即to do。 find/watch/notice/feel/see/hear/make/have/let sb doing sth则不变。
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Try to change these sentences into passive voice. ①She heard him sing last night.
2 双宾语结构当直接宾语作被动语态的主语时则在间接宾主前要加介词to/for. 解释什么是双宾语：直接宾语指物，间接宾语指人。
Mother told me an interesting story. →An interesting story was told to me by mother. Aunt bought me a dictionary. →A dictionary was bought for me by aunt.
小结：offer/ give/tell/teach/show sb sth →sth be offered/given/taught/shown to sb 但是make/buy sh sth→ sth be made/bought for sb Try to change these sentences into passive voice.
①He gave me a pen.② She bought him a scarf last night. 3 This farm grows rice. →Rice is grown on the farm. 4 It’s said/reported/believed that +主语从句
5 不及物动词无被动语态：happen& take place, taste/look/smell/sound Eg. What ? A happen B is happened C was happened D happened Step 7: Homework: 复习记忆被动语态及相关用法
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