2. Listen to Miss Green's lecture and decide whether the following statements are true or false. Make the answers by class themselves.

3. Work in pairs.

Interview the partners in your group, ask them some questions and write down, then report to the class.

Read the passage and choose the best answers

Tell the students to read the dialogues carefully，and think it over，then complete it. First ask the students talk about his or her answers with classmates.

Check the answers :

4b. 1. were invented

2. were brought

3. was locked ; rang

4. were telled ; broke

5. were eaten ; liked

4c. was invented ; was born ; worked ;

learned ; was invented ; was said ;

was used

homework

1.Write a passage about a new invention and introduce it.

2.Do some relevant exercises .

(设计说明：运用并拓展本课时所学知识，让学生在写作中进一步巩固所学知识，并掌握本课时的新词和短语。）

语法 :

(一) 语 态 分 类

英语动词有两种语态.，主动语态和被动语态。主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者。如：

They will build a new bridge over the river. (主动)

　A new bridge will be built over the river. (被动)

汉语中常用"被"、"给"、"由"、"受"等词用来表示被动，而英语用：

助动词be + 及物动词的过去分词构成。

(二) 被动语态的时态、人称和数的变化主要体现在be的变化上，其形式与系动词be的变化形式完全一样。

一般现在时：am / is / are + done

一般过去时：was / were + done

一般将来时：shall / will + be done

一般过去将来时：should / would + be done

现在进行时：am / is / are + being + done

过去进行时：was / were + being + done

现在完成时：have / has + been + done

过去完成时：had + been + done

将来完成时：shall / will + have been + done

过去将来完成时：should / would + have been + done

［注］被动语态没有将来进行时和过去将来进行时。

八、板书设计：