2019学年度人教版选修7 Unit 3Under the sea Period4 Grammar教案

Teaching Aims:

Revise the Passive Voice (2) ---including the -ing form

Important points:

The Passive Voice, exercise concerning the Passive Voice -including the -ing form.

Difficult points

Rewriting the sentences

Teaching Procedures & ways

一、 现在分词（ing-形式）的构成

V-ing 形式由 "do＋ing" 构成， 其否定形式是 "not doing",

V-ing 可以带宾语或状语构成 V-ing 短语，

没有人称和数的变化，但有时态和语态的变化。

二、动词-ing 形式的被动式分一般式和完成式:

1. 一般式:表示这个被动的动作正在进行或与谓语表示的动作同时发生.

2. 完成式:强调这个被动的动作在谓语动词所表示的动作之前完成.

时态 语态

被动语态

一般式

完成式

三、动词 -ing的被动式的句法功能

So being killed by sharks was a common thing.

2. 做宾语,用在介词后或需要带-ing 形 式作宾语的动词后.如:

George didn't like being kept waiting.

He was terrified of b eing abandoned by us.

Do you remember having been taken to Beijing at the age of ten?

3. 做表语.如:

What worried the child most was his not being allowed to visit his mother in the hospital.

4. 做定语.如:

The problem being discussed is of great importance.

5. 做状语.如:

Having been shown around the li brary, we were taken to see the lab.

6. 做补足语.如:

As we drew closer, I could see a whale being attacked by a pack of six other killers.

When we approached him, I saw James being held up in the water by Old Tom.

Notes：

1. V-ing 形式被动式主要在句子中作状语、宾语补足语和定语。

但V-ing 形式的完成被动式一般在句中作状语（偶尔作非限定定语），不作其它成分。

The y don't like_________________________（正在建造的桥的设计）

Not having been completed, the museum can't b e v isited yet. (由于没有完工...）