公开课教案（一般现在时态的被动语态）.doc

公开课教案（一般现在时的被动语态） 2015-5-17Teaching aims:1,Ss learn and master the passive voice of the generally in the present tense.2,Ss learn how to transform(转换)between the active and passive voice.3,Ss can understand the grammar notes and finish the grammar exercises perfectly.Teaching focus1,Tell the differences between the two voices and transform each other.2,Master the grammar points.3,Do the grammar exercises well.Teaching procedures: Step1 Going over Read and translate the following sentences. 1, Everything is made in China. 2, The cup is made of glass. 3, Is it made in China? 4, What is it made of? 5,Where is it made ? 6, Its used for drawing pictures. 7, Excuse me, is this seat taken? 8, I am surprised at the news. Step2 New teaching一、 两种语态的含义及区分：1， 主动语态：Many people speak Chinese.2， 被动语态：Chinese is spoken by many Chinese.3， 被动语态的构成：be +Pp(动词的过去分词)4， 人称、数和时态的变化是通过be的变化表现出来的。5， 一般现在时被动语态的构成： am / is / are +Pp +(by+动作执行者)例如：Children love this song. (主动语态）（ 动作执行者） （动作承受者）This song is loved by children.(被动语态）（动作承受者） （动作执行者） 二、主动语态变被动语态的口诀： 宾语提前主语变，原主变宾by后见，时态人称be关键。三、课堂练习：Exercise1把下列的句子变为被动语态的句子1、They speak English in Canada ._2、My mother often asks me to wash the dishes. _3、They make computers in the USA._4、They grow rice in South China._5、They grow rice in South China._Exercise2把下列句子变成被动句：1. More and more people speak English._2. We plant more trees every year here. _3.Dalian produces big ships. _ 4.Farmers grow rice in summer . _ 5.We clean our classroom every day._Step3, Summary and emphersize 要点补充： 1、当我们不知道动作的执行者时； A book is stolen. 2、当我们不必提出动作的执行者时； I was born in 1990. 3、当我们强调或侧重的是动作的接受者时。 She is liked by everybody. *4、其它各种时态的被动语态（以后单元中详解） The book was bought yesterday.(一般过去时态的被动语态） 5、动词变过去分词的变化规则。（现在完成时态已学过,课后回顾）要点总结归纳： 主动语态变被动语态的口决。 两种语态的含义：（略） 般现在时态被动语态的句型结构。 被动语态的用法： 1，不知道动作的执行者时。 A book is stolen. 2,不必强调动作的执行者时。（常用于一些固定搭配） be made of/from be made in be used to do sth/ for doing sth be (was /were) born It is/ was said/ reported +that 从句 “据说/ 据报到”Step4, Quize in class Quize11. The girl looks after the old woman well. The old woman by the girl .2. We often keep our classroom clean. Our classroom us.3. Some people throw waste paper everywhere. Waste paper everywhere. 4.We use all the apples to make salad . All the apples 5.The police catches a thief. A thief the police.Quize21. English _ (speak) by many people.2. Tea _ (grow) in Southeast China.3. Many trees _ (plant) in North China.4. The brush _ (make)