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(共24张PPT)
Unit 3 FASCINATING PARKS
The -ing form used as subject
What can the -ing form be used for
1. The performance is _______ (amaze).
2. The _________(sleep) baby is my daughter.
3. I saw you _______ (play) smartphone just now.
4. ________ (listen) to the music, I fell asleep.
amazing
sleeping
playing
Listening
predicative 表语
attribute 定语
object complement 宾补
adverbial 状语
动词-ing形式（一）
V-ing作主语
In class,you will be able to
1.master the basic grammar rules of V-ing form as the
subject.(掌握V-ing形式做主语的基本语法规则。)
2. understand the grammar rule of “It” as formal subject.
（理解It作形式主语的语法规则。）
3.master动词-ing的否定形式和被动形式,动名词的复合结构。
4. put what has been taught into practice.
（把所学到的运用到实践中去。）
Learning goals:
1.________________ is their hobby.
Playing basketball
一. 动名词作主语
Observe and translate
2.______(do）exercise is the best way to lose weight.
Doing
3.________ and _______________ are her hobbies.
Painting
collecting stamps
（一）动词-ing作主语
1. 动名词做主语，表示抽象的、经常的以及习惯性的动作或状态。单个动名词（短语）做主语时,谓语动词使用________形式。但是意义不同的两个动名词（短语）并列作主语时,谓语动词要用_________形式。

examples:
1. Playing basketball is their hobby.
2. Doing exercise is the best way to lose weight.
3. Painting and collecting stamps are her hobbies.
单数
复数
Playing video games
a waste of time.
is
It
is
a waste of time
playing video games.
形式主语
真正主语
Observe and Find
同义句转换
Watching a live competition is worthwhile.
It is worthwhile watching a live competition .
Crying is no use.
同义句转换
It is no use crying .
⑴ It's worthwhile watching a live competition .
⑵ It's no use crying
⑶ It was a waste of time playing video games.
二. 有时可用 it 作 形式主语 前置，真正的主语是-ing形式。但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。
adj.
n.
It is/was no use/no good doing sth 做……是没有用处/好处的
It is/was worthwhile doing 做……是值得的
It is/was a waste of time doing 做……是浪费时间的
Read and Memorize: (读&记忆)
1) Not buying the expensive toys causes the little boy to cry.
2) Not passing the exam makes him unhappy.
动词-ing形式的否定形式通常是在其前加not
三、动词-ing形式的否定形式Observe and translate
没有买昂贵的玩具造成小男孩大哭。
未通过考试使他很生气。
1.Being invited to speak here is a great honor for me.
2.Being criticized before the whole class made me feel embarrassed.
动词-ing形式的被动形式：Being done
四、动词-ing形式的被动形式Observe and translate
被邀请在这儿发言对我来说一种巨大的荣幸。
在全班面前被批评使我感觉很尴尬。
五、动名词的复合结构作主语
4. 动名词的复合结构作主语时，通常有两种形式：
(1) 形容词性物主代词+动词-ing
(2) 名词所有格+动词-ing
His being late again made his teacher very angry.
Mike’s returning to work is a great help to his family.
形容词性物主代词或名词所有格是动名词的逻辑主语
他再次迟到让老师很生气。
麦克回来工作对他全家来说都是一大帮助。
Attention：
1. 如果作主语的动词表示被动意义,那么使用____________作主语。
2. 动词-ing的否定形式是在其前面直接加上_____,带有逻辑主语时， not应放在逻辑主语和-ing 形式之间。
3. 动名词的复合结构作主语时，(1) +动词-ing
(2) +动词-ing
being done
not
Being invited to the evening party is a great honor for me.
Not passing the exam made him unhappy.
Our not obeying the school rule will be punished.
His being late again made his teacher very angry.
Mike’s returning to work is a great help to his family.
形容词性物主代词
名词所有格
Test for goals（达标检测）
一、单句语法填空。
1. ____________ (run) is good for our health.
2. ____________ (invite) to the party is a great honour for me.
3 Not ____________ (finish) the task on time made him unhappy.
4. It is a waste of time ____________ (be) addicted to smartphones.
5. It is worthwhile ________(take) part in this activity.
6. It is no use_________ (cry) without taking action.
7. (She )_____________coming to help encouraged all of us.
8. Mary’s __________(ill) made her mother upset.
9.Singing and dancing her hobbies.
Running
Being invited
finishing
being
taking
crying
Her
being ill
are
summary
动词-ing作主语
谓语的用法
谓语动词用单数
it做形式主语
It is a waste of time doing
It is no good/use doing
It is worthwhile doing
单个的动名词
两个或多个动名词（短语）
用复数
位置
句首
形容词性物主代词+动词-ing
名词所有格+动词-ing
动词-ing的复合结构
V-ing 作主语的被动形式Being done;否定形式Not doing
Homework:
1:Find more sentences with the -ing form from paragraphs (page26) and state their functions.
2:Make sentences with (1)It is a waste of time doing；(2)It is no good/use doing ； (3)It is worthwhile doing;(4)动名词的否定式（not doing);(5)动名词的被动式（being done);(6)动名词的复合结构（her doing;Tom’s doing);
The function of the -ing form in the text on page 26and 27.
1. Even though the sun is brightly shining, telling whether it is morning or night is impossible. (Para. 1)
subject主语
3. Looking after reindeer was a way of life for the Sami. (Para. 3)
2. Getting here is quite difficult.(Para. 2)
4. Being in such a beautiful and wild place makes me feel blessed to be alive. (Para. 4)
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5.Around 9,000 years ago, this ice melted, leaving behind about
100 glaciers. (Para. 2)
6. Close by, there are a few reindeer feeding on grass. (Para.2)
7. My breakfast is some sweet and sour berries that I found growing near my tent. (Para.3)
attribute定语
adverbial状语
object complement 宾语补足语
1． (read) in bed is bad for your eyes.
2. __________ (talk) with your kid heart to heart is very important.
3. It is no use ________(regret) your past mistakes.
4. It is a waste of time ____________ (play) video games.
5．Climbing mountains (be) really fun.
6．It is no good (cry) over spilt milk.
7. I can't stand (work) with Jane in the same office.
8. It's no use (complain) without taking action.
9.(2019·全国卷Ⅱ) (volunteer) just feels so good.
10.____________(invite) to the party was a great honour to the family.
11. His not (know) English brought him a lot of inconvenience.
Exercise I
Ⅰ.单句语法填空
Reading
Talking
regretting
playing
is
crying
working
complaining
Volunteering
Being invited
knowing

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