2018-2019学年度人教版必修二Unit 4 Wildlife protection-grammar教案 (1)
2018-2019学年度人教版必修二Unit 4 Wildlife protection-grammar教案 (1)第1页

Grammar

  Teaching aims

  Let students get used to Passive Voice in different tenses

  Teaching difficult point

  How to help students master the usages of passive voice in different tenses

  Teaching Procedure

  Step 1. Greeting

  Step 2. Daily Report

  Step 3. Introduce Passive Voice

  语法:被动语态

  一、主动语态与被动语态的概念:

  英语动词的语态有两种:⑴主动语态:表示主语是动作的执行者⑵被动语态:表示主语是动作的承受者(常常没在有必要指出动作的执行者情况下使用)

  例:They speak English. (主动语态)

主 谓 宾

English is spoken by them. (被动语态)

主 谓 介词短语

  注:☆及物动词有被动语态,不及物动词必须带有介词才可以有被动语态。

  例:⑴We listen to the teacher carefully in class.

主 谓 宾

  →The teacher is listened to by us carefully in class.

主  谓  介词短语

⑵We laughed at him .

  → He was laughed at by us.

  二、被动语态的结构与用法:

  ㈠结构:be +done (过去分词)

被动语态中的be为助动词,无意义。be可能是am , is , are也可能是was ,were或原形be。