Unit 4 语法 教案 高中英语人教版(2019)选择性必修第一册

共案个案Unit 4 Discovering useful

structures

动词-ing形式的用法

一、教学目标

1.To understand v-ing in the reading passage.

2.To master the functions of v-ing in the sentence.

e v-ing properly for epressions and writing.

二、教学重难点

1. Understanding the functions of v-ing in the sentence.

2. Memorize the rules clearly.

三、教学过程

Step1. Lead in

Find out sentences that use v-ing in the reading passage.(p.38)

Step2. Presentation

1.Let the students find sentences themselves.

2.Lead students to analyse sentence structures.

e PPT to present uses of v-ing.

4.Students try to translate some sentences.

nguage points

1.–ing 分词的构成

一般式（主动）doing；（被动）being done

完成式（主动）having done （被动）having been done

复合结构sb’s doing

否定式: not+ --ing/not having(been) done

2.一般式和完成式的用法

--ing 分词的一般式表示和谓语动词所表示

的动作同时进行的一个动作；完成式表示

先于谓语动词动作之前的一个动作。如：

Walking along the street, he caught sight of an old friend of his.

Not having studied his lessons very hard, he failed the examinations.

3.---ing分词的被动式

当－ing 分词与它的逻辑主语构成被动关系时，需要用被动形式。根据－ing分词动作发生的时间，－ing分词的被动式分为一般被动式(being done)和完成被动式(having been done), 如：

The question being discussed is very important.

Having been praised by the teacher, he works even harder.

4.---ing分词的句法功能

1)--ing 分词作主语

Learning English has become a part of his life.

It is no use trying to repair the ship.

2) ---ing分词作宾语

以下动词必须跟---ing分词作宾语：admit/appreciate/avoid/consider/delay/deny/dislike/enjoy/escap e/excuse//fancy/finish/imagine/keep/mind/miss/postpone/put

off/practise/resist/risk/stand/ stop/ suggest/ give up/cannot help 3）--ing 分词作表语。如：

Our job is playing all kinds of music.

注：一般来讲，--ing分词作表语有两种情况，一是名词性，这时主语和表语可以互换。如：

Playing all kinds of music is our job.

二是形容词性，表示主语的性质和特征

4）-ing分词作定语可以表示

(1) 所修饰名词的用途。如：

a waiting room(=a room for waiting) 候车室

（2）所修饰词的性质特征。如：

exciting news 令人激动的消息

(3)所修饰名词正在进行的动作，可以换成定语

从句形式。

如：a sleeping child (=a child who is sleeping)正睡觉的孩子注：分词短语作定语须放在所修饰词之后，例如：the man

standing at the gate=the man who is standing at the gate

5) 在see,hear,feel,watch,notice等感官动词后可以用-ing形式做宾语补足语。这时-ing 形式和句子的宾语之间存在着逻辑上的主谓关系，并且-ing 形式表示宾语正在进行的动作。如：

He saw a boy climbing the tree.

Do you hear someone knocking at the door? 有人敲门你听见了吗?

6)-ing分词作状语

(1)-ing分词在句中可以作伴随状语，常放于句后，表示主语正在进行的另一个动作，来对谓语表示的主要动作加以修饰或作主要陪衬。如：They sat in front of the building, laughing and chatting.

He worked late yesterday, preparing for the lecture.

(2)-ing分词可以作时间状语，常放在句首，如：(While)Walking in the street,I caught sight of a tailor's shop. (3)-ing分词可以作原因状语，常放句首。

如：Being ill, he can't go to school.

(4)-ing分词可以作条件状语，常放句首。

Turning to the right, you’ll find the post office there.

(5)-ing分词可以作结果状语，常放句末。

He turned off the light, seeing nothing.

5. -ing分词的复合结构

物主代词/人称代词/名词所属格或普通名词+ing分词

(1) 作主语（须用物主代词或名词所属格）

His/Tom’s not being chosen made us disappointed.

(2)作宾语(除了物主代词和名词所有格，也可用普通名词或代词宾格）

He was awakened by someone’s knocking at the door.

(3)作状语（须用普通名词或主格代词,亦称