(共20张PPT)
unit 5
非谓语-ing复习
语境感知
Predicting the future is really difficult.
Having left all my friends, I felt shy and lonely at my new school.
Not receiving a reply from him, she felt upset.
He insisted on being called Dr. Turner instead of Mr. Turner.
His/Tom’s being late made the teacher very angry.
Having been given such a good chance, how could she let it slip away
(1)一般式的主动形式:① 。
(2)完成式的主动形式:② 。
(3)一般式的被动形式:③ 。
(4)完成式的被动形式:④ 。
(5)否定式:在动词-ing形式前面加⑤ 。
(6)复合结构:在动词-ing形式前面加名词所有格、形容词性物主代词、名词普通格或人称代词宾格。
doing
having done
being done
having been done
not
用法归纳
1.动词 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。
Singing is my hobby, and to sing at parties is my dream.
[名师点津]
动名词作主语时,谓语动词用单数。
Walking _________(be) a good form of exercise for both the young and the old.
动词 ing形式作主语
is
动词 ing形式作主语
2. 形式主语it代替动词 ing形式作主语。
此类句式常见的有:
It is no good/use ___________(cry) over the spilt milk.
It's a waste of time doing sth.做某事是浪费时间
It's useless/worthwhile doing sth.做某事没用/是值得的
It's no good/use/fun doing sth.做某事没好处/没用/没意思
crying
[即学即练]
单句语法填空
① ___ (work) with Jane in the same office is hard for me.
②It's no use (complain) without taking action.
③ (volunteer)makes me feel so satisfied.
④ (invite) to the party is what I want.
动词 ing形式作主语
Working
complaining
Volunteering
Being invited
1.作动词的宾语。
接v. ing形式作宾语的常用动词(短语)有:
动词 ing形式作宾语
admit、advise、appreciate、avoid、consider、delay、deny、enjoy、escape、fancy、finish、imagine、keep(on)、mind、miss、practise、risk、suggest、give up、stick to、lead to
动词 ing形式作宾语
2. 作介词的宾语
在下面的短语中,常用动词 ing形式作介词的宾语:
改错 I'm looking forward to your come next time.
come---coming
3. 动词 ing的复合结构
His/Tom's ___________(be) late made the teacher very angry.
Would you mind my/me ____________(clsoe) the window
Jerry's not ____________(arrive) on time made the people present angry.
动词 ing形式作宾语
being
closing
arriving
1.动名词(短语)作表语,表示抽象的一般性的行为,用来说明主语的内容,与主语通常是同一概念,表语和主语常可互换位置。
Our duty is helping the disabled.=Helping the disabled is our duty.
2.现在分词(短语)作表语,表示主语的某种性质和特征,这类分词通常可以看作形容词。
Her performance is very ____________(entertain),which brings us much pleasure.
动词 ing形式作表语
entertaining
动词 ing形式作定语
1.动名词(短语)作定语,表示名词的属性、作用或用途,作“供……用”讲,常置于被修饰的名词前。
There is a swimming pool in our school.
Students are not permitted to speak aloud in the reading room.
2.现在分词(短语)作定语,表示所修饰词的动作或状态,被修饰词与现在分词之间是主动关系,相当于一个定语从句。
The boys gathering at the school gate are my classmates.=The boys who are gathering at the school gate are my classmates.
The girl performing on the stage has a gift for dance.= The girl who is performing on the stage has a gift for dance.
动词 ing形式作宾语补足语
I found my car missing.
His father saw him playing computer games.
She couldn’t have him getting away with telling lies.
情境感知
用法归纳
(1)现在分词作宾语补足语可以分为两种情况,一种是具有形容词性质的现在分词作宾语补足语,一种是具有动词性质的现在分词作宾语补足语。
(2)具有动词性质的现在分词作宾语补足语表示正在发生的动作或者是经常存在的状态,一般在 感官动词、使役动词后作宾语补足语,用以补充说明宾语的状况。常见的感官动词有feel、hear、listen to、look at、notice、observe、see、watch等;常见的使役动词有get、have、make、leave等。
(3)当这些句子变为被动语态时,宾语补足语则变为主语补足语。
1.作时间状语
When he heard the news,he couldn't help laughing.
= ___________(hear) the news,he couldn't help laughing.
2.作原因状语
As I don't know her address,I had better telephone her to come over.
=Not knowing her address,I had better telephone her to come over.
动词 ing形式作状语
Hearing
动词 ing形式作状语
3.作条件状语
If you don’t go to bed early, you will feel sleepy tommorrow.
= Not ___________(go) to bed early, you will feel sleepy tommorrow.
4.作结果状语
The child slipped and fell,and hit his head against the door.
=The child slipped and fell,__________(hit) his head against the door.
hitting
going
[名师点津]
现在分词作结果状语,是随着谓语动词的发生而产生的自然结果,而不定式作结果状语时常表示出乎意料的结果,有时前面可以加only。I hurried to school,only _____________(find) it was Sunday.
to find
动词 ing形式作状语
5.作让步状语
Although he had been told many times,he still didn't learn these rules by heart.
=________________ (tell) many times,he still didn't learn these rules by heart.
6.作伴随状语
Morris lay on the grass,staring at the sky for a long time.
=Morris lay on the grass and stared at the sky for a long time.
Having been told
动词 ing形式作状语
用法归纳
现在分词可以作时间状语、原因状语、伴随状语、条件状语、结果状语、让步状语等。现在分词作状语时需要注意以下几点:
(1)时间性。如果现在分词所表示的动作与谓语动词所表示的动作同时发生,则用一般式;如果现在分词所表示的动作发生在谓语动词所表示的动作之前则用完成式。
(2)语态性。现在分词所表示的动作若与句子主语之间是主动关系,则用主动形式;若与句子主语之间是被动关系,则用被动形式。
(3)现在分词作状语时,如果它的逻辑主语不是句子的主语,通常用独立主格结构,即在现在分词前面加上它的逻辑主语。
(4)有时出于强调或表达需要,现在分词前可以加when、while、
after、before、if、though、unless、as if等从属连词。
练习
1.So what are the major __________ (contribute) factors in the success of Maths teaching 2.These smart homes _______ (keep) us secure and comfortable will be welcomed by most families.3.Time________(permit), I expect to have more spare time to spend with my family.4.Behind his house lies a pond________(measure)about 2 meters across.5.I’m tired out. I stayed up the whole night, ______ (study) for my project due today.
contributing
keeping
permitting
measuring
studying
练习
6.____________ (wait) for her for two hours in the park, I had to leave.7.I heard a passenger behind me ____________ (shout) to the driver, and he refused to stop until we reached the next stop.8.She has never seen such a collective dedication from a nation, ________ (turn) things for the better by sacrificing personal convenience.9.Not seeing or hearing any fire engines ________(approach), Grant rushed to a side entrance and ran up the stairs.10.He is a student at Oxford University________(study) for a degree in computer science.
Having waited
shouting
turning
approaching
studying
练习
11. This may be due to some disadvantages for people ____ ____ (live) in the countryside, including lower levels of income and education, higher costs of healthy foods, and fewer sports facilities.12.There have been a dramatic rise in the number of extreme weather events over the past 20 years, ________(cause) largely by rising global temperatures, according to a new report from the United Nations. 13. From 2000 to 2019, there were 7,348 major natural disasters around the world, ________(result) in USD 2,970 billion in economic loss.14.As a result ,she says,some of the injuries___________(associate) with running, such as runner’s knee,are uncommon among race walkers.15.Lighting accounts for about 7% of the total electricity__________(consume) in the US.
living
caused
resulting
associated
consumed
Thank you