(共33张PPT)
Period 2 Learning About Language
复习不定式
CONTENTS
目 录
要义详析 探究语法
01
课堂微练 即时检验
02
01
要义详析 探究语法
一、动词不定式的各种形式
(1)(教材P26)To reach out across the sea remains a strong desire today.
今天,跨海越洋依旧是人们强烈的渴望。
(2)I felt very happy to have received the gift sent by you last Sunday.
收到你上周日寄来的礼物,我感到非常高兴。
(3)The students are determined to be working hard in order to get into their dream universities.
学生们决定努力学习,以便考入他们理想的大学。
(4)Sometimes to be understood is not an easy job.
有时被人理解并不是一件容易的事。
上述例句中的动词不定式的形式分别是__________、__________、__________、__________。
一般式
完成式
进行式
被动形式
句子成分包括以下几类:
语态形式 时态形式 主动形式 被动形式
一般式 to do to be done
完成式 to have done to have been done
进行式 to be doing
1.动词不定式的一般式(to do)所表示的动作通常与谓语动词所表示的动作(或状态)同时发生,或是在它之后发生,其被动形式为:to be done。
2.动词不定式的完成式(to have done)表示不定式的动作发生在谓语动词所表示的动作之前,其被动形式为:to have been done。
3.动词不定式的进行式(to be doing)表示不定式的动作与谓语动词所表示的动作同时发生。
4.在intended、expected、hoped、promised、wanted、wished、thought等后常用动词不定式的完成式,表示过去没有实现的愿望、期待或计划等。
单句语法填空
(1)(2024·新高考全国卷Ⅰ) These sepals open on warm days _____________(give) the inside plants sunshine and fresh air.
(2)(2023·新高考全国卷Ⅰ) Nanxiang aside, the best xiao long bao have a fine skin, allowing them _____________(lift) out of the steamer basket without tearing or spilling any of their contents.
to give
to be lifted
(3)I intended _____________(go) to your house last night, but it rained.
(4)He expected her _____________(wait) for him at the station, yet she wasn't there.
(5)The work is believed ______________________(do) perfectly, which is a great relief to the manager.
to have gone
to be waiting
to have been done
二、动词不定式的句法功能
(1)(教材P26)To complete the great map of the world was a strong passion for the people of early civilisations.
在早期文明中,人们对绘制伟大的世界地图充满激情。
(2)(教材P26) Marco Polo's tales inspired European explorers to search for sea routes from west to east.
马可·波罗的故事激励了欧洲探险家寻找自西向东的海上航线。
(3)(教材P27)The aim of this initiative is to encourage cooperation and trade across the historic Silk Road areas, and strengthen the bonds between China and the rest of the world.
这项倡议旨在鼓励历史悠久的丝绸之路所经地区的合作与贸易,同时加强中国与世界其他地区之间的联系。
(4)(教材P27)Trading has grown greatly in recent years, and will continue to do so in years to come.
近年来,贸易增长迅猛,未来几年也将持续增长。
(5)(教材P27) China has invested billions in systems and services along these routes, which will help to greatly develop the whole area for the benefit of future trade and cultural exchange.
中国已经在这些沿线地区的运输系统和服务上投入了数十亿美元,这将有助于整个地区的极大发展,有利于未来的贸易和文化交流。
上述例句中的动词不定式在句中分别作______、____________、______、______、______。
主语
宾语补足语
表语
定语
宾语
动词不定式在句中可以作主语、表语、宾语、宾语补足语、定语和状语,多表示具体的或某次具体的行为。
1.动词不定式作主语
动词不定式作主语时,谓语动词用第三人称单数形式。为了保持句子平衡,往往把主语放在句尾,而用it作形式主语。
2.动词不定式作表语
动词不定式作表语时须放在系动词后面,表示具体的动作或将来的动作。这些系动词主要是系动词(am、is、are、was、were、been等)和表象类系动词(seem、appear等)。
如果句中主语部分有实义动词 do的某种形式,作表语的动词不定式可省略符号to。
*The least I can do is (to) write to you.
我至少能做到的是给你写信。
3.动词不定式作宾语
(1)有些动词后接另一动词作宾语时,该动词习惯上要用不定式形式,而不用动词-ing形式,这类动词主要有hope、wish、want、agree、promise、demand、ask、refuse、manage、learn、decide、pretend、choose等。
(2)think、find、feel、make、believe等动词可用于“动词+it+形容词/名词+to do sth.”结构中。在此句型中,it作形式宾语,真正的宾语是后面的动词不定式。
4.动词不定式作宾语补足语
动词不定式作宾语补足语的情况:一是在有些动词或动词短语后面接带to的不定式;二是在感官或使役动词后接不带to的不定式(主动语态)。
5.动词不定式作定语
动词不定式作定语时,一般放在被修饰词后,表示一个将来的动作。不定式与被修饰词之间存在主谓或动宾关系。
(1)名词前有序数词、形容词最高级修饰,或被修饰的中心词是序数词、形容词最高级时,作定语的非谓语动词形式多为带to的不定式。
(2)当被修饰的词是抽象名词(ability、chance、idea等)时,作定语的非谓语动词形式多用带to的不定式。
6.动词不定式作状语
动词不定式作状语时可以表示目的、结果、原因、条件、方式等。
动词不定式作结果状语时,常放在句尾,如so...as to...、too...to...等。有时动词不定式表示出人意料的结果,常在不定式前面加only。
完成句子
(1)很高兴知道你下周要来参观我们的学校,欢迎参加我们的劳动周。
It's great ________________________________________ and welcome to join in our Labour Week.
(2)我的主要任务是使这家公司顺利运转。
My main task is ____________________________________.
to know you will visit our school next week
to get this company running smoothly
(3)一旦你决定参加,请填写附件的申请表并发送给我。
____________________________________, please fill in the attached application form and send it to me.
(4)他总是一个吃苦在前、享乐在后的人。
He is always _________________________________________________
___________.
Once you have decided to take part
the first to bear hardships and the last to enjoy comforts
(5)为了传播他们的美丽和精神,传统艺术家一直在使用社交媒体与更广泛的观众分享他们的作品和故事。
____________________________________, traditional artists have been using social media to share their works and stories with a wider audience.
(6)医生建议他多锻炼,保持均衡的饮食。
The doctor advised him ________________________________________
___________.
To spread their beauty and spirit
to take more exercise and have a balanced diet
02
课堂微练 即时检验
Ⅰ.单句语法填空
1.The problem is thought __________________________(solve) with the help of new technology, but further tests are needed.
2.She hoped the children _____________(play) happily in the garden, but when she looked out, they were arguing.
3.Many people find ____ a hard job to be fluent in a foreign language.
to have been solved
to be playing
it
4.To our surprise, it is convenient for us _________(have) an accommodation at such a remote attraction.
5.These flowers need __________________________(water) once a day.
6.The young couple meant __________________(travel) abroad, but they cancelled the trip due to the tough budget.
7.He hurried to the office, only _____________(find) that the manager had gone.
to have
watering/to be watered
to have travelled
to find
8.Once his message was delivered, he allowed me _____________(stay) and watch.
9.I was wondering whether to participate in the competition when my English teacher came by, telling me that it was a good chance _____________(display) my talent.
10.The purpose of new technology is _____________(make) life easier, not to make it more difficult.
to stay
to display
to make
Ⅱ.语法与写作
1.I feel that it is an honour to be invited to speak at this important conference.
→_______________________________________ at this important conference.
2.To finish the work in such a short time is impossible.
→____________________________________________________
I feel it an honour to be invited to speak
It is impossible to finish the work in such a short time.
3.It is believed that he has achieved great success in his business, which has made him a well-known entrepreneur.
→__________________________________________________________, which has made him a well-known entrepreneur.
4.My mother made me do my homework before I could go out to play.
→____________________________________________________before I could go out to play.
He is believed to have achieved great success in his business
I was made to do my homework by my mother
5.He spoke so loudly that everyone could hear him in the room.
→________________________________________________ in the room.
He spoke so loudly as to be heard by everyone