2019学年度人教版选修七Unit2RobotsPeriod4Grammar教案设计

1. Revise the Passive Voice (including the Infinitive)

2. Ability goals能力目标

Enable students to use both the useful words and expressions and structures freely.

3. Learning ability goals学能目标

By doing related exercises in the textbook enable students to use both the useful words and expressions and structures freely.

Teaching important and difficult points教学重难点

The use of the passive infinitive.

Teaching methods教学方法

Explaining and practicing.

Teaching aids教具准备

Multi-media computer.

Teaching procedures & ways教学过程与方式

Step Ⅰ Revision

不定式有时态和语态的变化，时态共四种，即一般式、完成式、进行式和完成进行式。语态分为主动语态和被动语态，

Step ⅡDetailed explanation

当动词不定式的逻辑主语是动词不定式所表示的动作的执行者时用 _____ 语态；当动词不定式的逻辑主语是动词不定式所表示的动作的承受者时用 _____语态。进行式和完成进行式没有被动语态。

不定式的被动形式有下列用法:

(1) 作主语

It is an honour for me to be asked to speak here. it 作形式主语。

(2) 作宾语

She asked to be sent to work in Hong Kong.

(3) 构成复合宾语(宾补)

He wanted the letter to be typed at once.

She didn't like herself to be praised like that.

(4) 构成复合谓语

The books are not allowed to be taken out of the room.

(5) 作定语

Are you going to the meeting to be held next week?

(6) 作状语

She was too young to be assigned such work.

不定式有时还可以有完成式的被动式，在句中作主语、宾语、定语，或者构成复合宾语、复合谓语等。

It is a good thing for him to have been criticized.

She preferred to have been given heavier work to do.

He thought it is an honour to have been invited to the party.

The book is said to have been translated into many languages. (complex predicate)