(共17张PPT)
Faster,higher,stronger
-ing as subject
1.To understand the general knowledge of -ing as subject.
2. To be able to use -ing as subject in proper situations.
Learning aims
用括号内单词的适当形式完成下面教材中的句子并体会其语法特征
1. (know) where the ball would go wasn't easy.
2. (shoot) with great accuracy was another thing he learnt.
3.In this way, (practise) day in and day out helped Stephen sharpen his skills.
4. (play) basketball was his dream.
Leading-in
Knowing
Shooting
practising
Playing
考点一 v. ing形式有时态和语态的变化,其构成见下表(以write为例)
1.v. ing的一般式所表示的动作与谓语动词所表示的动作几乎同时发生或发生在谓语动词所表示的动作之后。
I saw them chatting in the shade of a large tree.
我看见他们正在一棵大树的荫凉处闲聊。(同时)
They looked down upon each other, causing a big argument.
他们彼此看不起对方,导致激烈的争吵。(稍后)
主动语态 被动语态
一般时 writing being written
完成时 having written having been written
2.v. ing的完成式所表示的动作发生在谓语动词所表示的动作之前。
She didn't remember having met him before.
她不记得以前见过他。(先于谓语动作发生)
Having been played tricks on many times,she now doesn't believe Joe.
由于多次被捉弄,她现在都不相信乔了。(先于谓语动作发生且表被动)
【即学即练】单句语法填空
1. I stood there, (wait) for her to come.
2. (experience) quite a few earthquakes in Hawaii already, I didn't take much notice.
waiting
Having experienced
考点二 v. ing形式作主语
1.v. ing形式作主语时,往往表示经常性、习惯性的动作,通常置于句首。
Saying is one thing, and doing is another.
说是一回事,而做是另一回事。
Reading aloud is a good way to learn a language.
大声朗读是学习语言的一种好方法。
【温馨提示】
(1)不定式作主语表示具体的或一次性的动作。
To surround the enemy in such bad weather is not easy for them.
对他们来说,在如此恶劣的天气里包围敌军并不容易。
(2)v.-ing作主语时,谓语动词用单数。
Climbing mountains is really difficult for the old.
对于老人来说爬山确实困难。
2.形式主语it代替v. ing形式作主语。
此类句式常见的有:
It is a waste of time doing... 做……是浪费时间的。
It is no good/use doing... 做……是不好的/没用的。
It is worthwhile doing... 做……是值得的。
It is useless doing... 做……没有用。
It is no fun doing... 做……没有乐趣。
It is no use regretting for the past.悔恨过去是没用的。
It is a waste of time arguing with him about the matter.同他争辩这件事真是浪费时间。
【即学即练】单句语法填空
1. (drink) a lot of water is good for you.
2. Going to Guangzhou by train (take) about 12 hours from here.
3. (bring) up in the countryside made Mr Wilson very hard working when he was very young.
4. (walk) is a good form of exercise for both young and old.
5. In Chinese culture, (point) at others with a finger is considered to be impolite.
6. Talking with your kid heart to heart (be) very important.
7. It is no pleasure (stay) at home doing homework all day.
8. It is a waste of time (try) to persuade him to give up playing computer games.
Drinking
takes
Being brought
Walking
staying
is
pointing
trying
考点三 v. ing形式的复合结构
v. ing形式可以有自己的逻辑主语,如形容词性物主代词、名词所有格、人称代词的宾格或名词普通格,便构成了v. ing形式的复合结构。具体形式有:①his+doing;②Tom's+doing;③him+doing;④Tom+doing。
His coming made us very inspired.
他的到来让我们深受鼓舞。
Tom's being outspoken won the respect of his fellow workers.
汤姆的坦诚赢得了同事们的尊敬。
Would you mind my/me waiting for you in the shade of that tree
你介意我在那棵树的阴凉处等你吗?
v. ing形式的复合结构作主语时,只能用①②两种形式;作宾语或表语时,可用上述四种形式中的任何一种。
We are looking forward to his/him/Tom's/Tom coming to deliver a speech to us.
我们盼望着他/汤姆来给我们做演讲。
【即学即练】单句语法填空
1. His father's (fall) ill made him really worried.
2. Your (be) right doesn't necessarily mean my wrong.
3. I object to Tom's (leave).
4. Marry's (marry) such an old man made us all surprised.
falling
leaving
being
marrying
Summary
-ing作主语
1.v. ing形式作主语时,往往表示经常性、习惯性的动作,通常置于句首。
eg:Reading aloud is a good way to learn a language.
2.v.-ing作主语时,谓语动词用单数。
eg:Climbing mountains is really difficult for the old.
3.形式主语it代替v. ing形式作主语。
eg:It is no good/use regretting for the past.
4.v. ing形式的复合结构
eg:His coming made us very inspired.
Ⅰ单句语法填空
1.Tom admitted (cheat) in the examination and he was not admitted to the school at last.
2. (attend) the party last night made Alice very excited.
3. Right from the beginning, (bring) attention to clean energy and the technologies it requires is the first problem for us to solve.
4. Mary's (be) late for class this morning made the teacher angry.
cheating/having cheated
Attending
bringing
being
5. (remember) some new words every day can enlarge your vocabulary.
6.If you think that (treat) a kid well means always giving him what he wants, you are totally wrong.
7. (invite) to the party was a great honour to the family.
8. (sing) is my hobby, and (sing) at my friend's birthday party is my dream.
Being invited
treating
Remembering
Singing
to sing
Ⅱ.完成句子
1.等别人替你做决定是没有好处的。
other people to make decisions for you.
2.在雪地里和孩子们一起玩可以使你和他们之间的关系更牢固。
in the snow can make the bond between you and them stronger.
3.丢了戒指使爱丽丝很沮丧。我们该安慰她。
made Alice very upset. We should comfort her.
It's no good waiting for
Playing with the kids
Losing the ring
4.他父亲病了,这让他很担心。
made him very worried.
5.拥有朋友意味着你有谈话的人,所以你不会感到孤独和沮丧。
that you can have someone to talk to so that you don't feel lonely and depressed.
His father's being ill
Having friends means
Sharp tools make good work. 工欲善其事,必先利其器。