史上最完整-动词不定式的用法PPT课件
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动词不定式的用法归纳PPT课件
连用，在句中起名词作用，可充当主语、表语、宾语等 。
ØHe didn’t know what to say.
ØHow to solve the problem is very important.
ØMy question is when to start.
注意：•在与why连用时，只用于why或why not开头的简
(subject) 3. My ambition is to work in the computer
industry when I grow up. (predicative)
第17页，共52页。
4. I don’t have time to sit around feeling sorry for myself. (attribute)
第2页，共52页。
1. 作主语
2. 作宾语 3. 作宾语补足语 4. 作定语
5. 作状语
6. 作表语 7. 作独立成分
8. 与疑问词等连用
第3页，共52页。
1 不定式作主语 (subject)
谓语动词用单数形式。 To see is to believe. To keep smiling is healthy for you. It’s important to learn English well.
He is looking for a room ptola_y__w_i_t_h______ (live).
He needs a friend to __________ (play).
choose from
There are three pairs ofБайду номын сангаасshoes for you to _________ (choose).
ØHe didn’t know what to say.
ØHow to solve the problem is very important.
ØMy question is when to start.
注意：•在与why连用时，只用于why或why not开头的简
(subject) 3. My ambition is to work in the computer
industry when I grow up. (predicative)
第17页，共52页。
4. I don’t have time to sit around feeling sorry for myself. (attribute)
第2页，共52页。
1. 作主语
2. 作宾语 3. 作宾语补足语 4. 作定语
5. 作状语
6. 作表语 7. 作独立成分
8. 与疑问词等连用
第3页，共52页。
1 不定式作主语 (subject)
谓语动词用单数形式。 To see is to believe. To keep smiling is healthy for you. It’s important to learn English well.
He is looking for a room ptola_y__w_i_t_h______ (live).
He needs a friend to __________ (play).
choose from
There are three pairs ofБайду номын сангаасshoes for you to _________ (choose).
史上最完整 动词不定式的用法ppt课件
A. getting
B. having got
C. being got
D. to get
解析：名词the way后跟有两个定语，一个是 定语从句Smith thought of， 一个是动词不定 式to get enough money to buy the new
house.
27
5. The young assistant was noticed __C____ the bank alone last night.
All I could do was send him a telegram.
13
5.动词不定式作宾补 常跟动词不定式作宾补的动词有： （1）可接带to的不定式作宾补的动 词有：
ask, get, allow, forbid, prefer, force, inspire, advise, cause, tell, order, warn, teach, permit, wish, invite, encourage等
A. not to do
B. not do it
C. do not to
D. not to
解析：tell sb. (not) to do sth. 为了避免重 复，后面省略了surf the Internet.
29
7. The party was successful, but we thought it a pity not __D_______ you.
2
1. 动词不定式作主语
有时候为了保持句子平衡，常用it 作形式主语，放到句首，而将作真 实主语的动词不定式放到句末。
It will take a whole day to get there by car.
公开课课件动词不定式的用法
05
动词不定式与其他非谓语动词比较
与动名词比较
动词不定式和动名词在句子中都可以充当主语、宾语等成分，但它们的意义和用法 有所不同。
动词不定式表示具体的、一次性的动作，而动名词则表示抽象的、习பைடு நூலகம்性的动作。
在某些情况下，动词不定式和动名词可以互换使用，但表达的含义可能有所不同。
与现在分词比较
动词不定式和现在分词都可以表示主 动的动作，但它们的时态和语态有所 不同。
在某些情况下，动词不定式和现在分 词可以互换使用，但需要根据具体语 境来判断。
动词不定式不受时态限制，可以表示 过去、现在或将来的动作，而现在分 词则通常表示正在进行的动作。
与过去分词比较
动词不定式和过去分词都可以表示被动的动作，但它们的用法和意义有 所不同。
动词不定式表示被动的动作时，需要使用助动词be的适当形式，而过去 分词则可以直接表示被动的动作。
03
动词不定式在句子中作用
作主语
01
动词不定式作主语时，谓语动词 用单数形式。
02
常用it作形式主语，把真正的主语 动词不定式置于句后。
作宾语
能够接动词不定式作宾语的有ask, agree, beg, decide, determine等 。
动词不定式与名词等构成复合宾语时 ，通常要用it作形式宾语，而把真正的 宾语动词不定式置于句后。
择合适的动词形式。例如，正确的表达是 “I enjoy listening to music”，而不是
“I enjoy to listen to music”。
逻辑主语问题
要点一
不定式逻辑主语与句子主语不一 致
动词不定式的逻辑主语应与句子主语保持一致。例如，正 确的表达是“It is important for you to study hard”， 而不是“It is important for him to study hard”。
动词不定式(12张PPT)初中英语专项复习课件
She wants to play the piano. 她想弹钢琴。
Jim told me not to wake up Kate. 吉姆告诉我不要叫醒凯特。
语法透视
考点大观 易错辨析 通关训练
动词不定式的用法
2. 不带to的不定式结构。 (1) 在固定词组had better之后。注意：had better
—Mary is very generous. —Yes, she gave away all her money she owned
____ people in need. A. to help B. to helping C. helped D. helping
【解析】本句话意为“玛丽真是太慷慨了。是的， 她把她所有的钱都捐给了缺钱的人们”。表目的 用动词不定式，所以答案选A。
动词不定式的结构： to + 动词原形
语法透视
动词不定式的用法
考点大观 易错辨析 通关训练
1. 省to的不定式结构 (1) 能 直 接 跟 带 to 的 不 定 式 结 构 的 动 词 主 要 有 ：
want, ask, tell, hope, learn, try, decide, forget, remember, like, love, stop等。 (2) 动词不定式的否定形式是在不定式前直接加not ，即not to do sth。
语法透视
动词不定式的用法
考点大观
3. 动词不定式作主语。动词不定式作主语可以放在 后面，而用it作形式主语放在原主语的位置上。
易错辨析 通关训练
To master a language is not an easy thing. 掌握一门语言不是一件容易的事情。
初中动词不定式完整ppt课件
但有的动词（如：need, want, require等）后面接动名词或动 词不定式作宾语均可。
在It + be + 形容词（easy, difficult, expensive等） + 不 定式句型中，动词不定式常用it 作形式宾语，而将真正的宾语 放到句子后面。
作定语
动词不定式作定语时，要放在被修饰的名词之后，表示与这个名词有逻辑上的动宾 关系，即不定式动词可以修饰的名词应是它的表语或宾语。
误用动词不定式的时态和语态
动词不定式的时态和语态需要根据句子的语境和上下文进行判断，但在 实际使用中，学生往往容易忽略这一点，导致时态和语态的错误使用。
注意事项
注意动词不定式的正确性
在使用动词不定式时，要确保其形式 的正确性，包括时态、语态、逻辑主 语等方面。
注意上下文语境
多练习、多积累
掌握动词不定式的用法需要大量的练 习和积累，因此学生应该多做相关练 习，多阅读相关材料，以便更好地掌 握这一语法点。
例如
They were watching TV at this time yesterday.（昨天这 个时候他们正在看电视）
语态的转换
1 2
主动语态 表示主语是动作的执行者
被动语态 表示主语是动作的承受者
3
动词不定式的语态转换
将主动语态的不定式改为被动语态的不定式，一 般在不定式前加to be，并将不定式的逻辑主语 作为被动语态的主语
04
动词不定式的省略和倒装
省略情况
当动词不定式在句子中作宾语补足语，表示的是一次性 的具体动作，且句子的主语和不定式的逻辑主语一致时， 可以省略to。
当动词不定式中的动词是be、have、助动词或情态动 词时，可以省略to。
动词不定式讲解PPT课件
• 9. stop to do sth 停下来去做某事
• Stop to have a rest if you are tired
• 10. stop doing sth 停止做某事
• Although it rained heavily , the farmers didn’t stop working in the field 虽然 雨下得很大，农民们却没有停止在田间劳动
• 16. need \require doing sth 主动表被动
• The blackboard needs\requires cleaning黑板需要擦了
• 17. go on to do sth • 做完一件事后继续做另外一件不同的事 • 18. go on doing sth继续20做21 原来所做的同一件事
It's important (for us) to protect the environment.
(对我们来说)保护环境是很重要的。
• 注：当在描述行为者的性格、品质的形容词，如：
good(好的)，kind(友善的)，nice(友好的)，polite(有礼貌的)， clever(聪明的)，foolish(愚蠢的)，lazy(懒惰的)，careful(细心
beginstartdosthbeginstartdoingsthlovehatedosthlovehatedoingsth202114practicefinishsuggestgiveupenjoymissbusymindcanthelpconsiderfeellikerememberwanttryneedforgetregrettrymeanrequirestop返回202116dosth记住要做某事youmustrememberdoorwhenyouleaverememberdoingsth记得曾做过某事rememberlockingfrontdoordosth忘记要做某事heforgotdohishomeworkyesterdayforgetdoingsth忘记曾做过某事forgotsayingdosth努力做某事hetriesanswereachquestiontrydoingsth试着做某事triedsingingenglishsong202117dosth打算做某事wemeantravelabroadnextyearmeandoingsth意味着meanswaitinghimanotherhourdosth停下来去做某事10stopdoingsth停止做某事rainedheavilyfarmersdidntstopworkingfield虽然雨下得很大农民们却没有停止在田间劳动11regretdosth对现在发生的事表示遗憾weregretinformyouyouowe我们很遗憾地通知你你欠银行100美元20211812regretdoingsth对发生过的事表示后悔heregrettedplayingcomputergames
• Stop to have a rest if you are tired
• 10. stop doing sth 停止做某事
• Although it rained heavily , the farmers didn’t stop working in the field 虽然 雨下得很大，农民们却没有停止在田间劳动
• 16. need \require doing sth 主动表被动
• The blackboard needs\requires cleaning黑板需要擦了
• 17. go on to do sth • 做完一件事后继续做另外一件不同的事 • 18. go on doing sth继续20做21 原来所做的同一件事
It's important (for us) to protect the environment.
(对我们来说)保护环境是很重要的。
• 注：当在描述行为者的性格、品质的形容词，如：
good(好的)，kind(友善的)，nice(友好的)，polite(有礼貌的)， clever(聪明的)，foolish(愚蠢的)，lazy(懒惰的)，careful(细心
beginstartdosthbeginstartdoingsthlovehatedosthlovehatedoingsth202114practicefinishsuggestgiveupenjoymissbusymindcanthelpconsiderfeellikerememberwanttryneedforgetregrettrymeanrequirestop返回202116dosth记住要做某事youmustrememberdoorwhenyouleaverememberdoingsth记得曾做过某事rememberlockingfrontdoordosth忘记要做某事heforgotdohishomeworkyesterdayforgetdoingsth忘记曾做过某事forgotsayingdosth努力做某事hetriesanswereachquestiontrydoingsth试着做某事triedsingingenglishsong202117dosth打算做某事wemeantravelabroadnextyearmeandoingsth意味着meanswaitinghimanotherhourdosth停下来去做某事10stopdoingsth停止做某事rainedheavilyfarmersdidntstopworkingfield虽然雨下得很大农民们却没有停止在田间劳动11regretdosth对现在发生的事表示遗憾weregretinformyouyouowe我们很遗憾地通知你你欠银行100美元20211812regretdoingsth对发生过的事表示后悔heregrettedplayingcomputergames
史上最完整动词不定式的用法
4.动词不定式作表语
1．主语和表语都是不定式（其含义ind to the enemy is to be cruel to the people.
To do that would be to cut the foot to fit the shoe.
2 ． 主 语 是 以 aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以 what 引导的名词性从句表示，表语用不定 式说明其内容，如：
1. 动词不定式作主语 动词不定式作主语，谓语动词用第三
人称单数。
To get there by car will take a whole day.
How to get enough money is still a question.
1. 动词不定式作主语
有时候为了保持句子平衡，常用it 作形式主语，放到句首，而将作真 实主语的动词不定式放到句末。
My idea is to climb the mountain from the north. My suggestion is to start work at once.
What I would suggest is to start work at once.
注：在某些句型中，当主语部分有动作 动词do 时，作表语的不定式可以省略符 号 “to”，如：
3. We climbed to the top of the tower ___D_____a better view of the area.
A. getting
B. got
C. having got
《动词不定式》课件
动词不定式作定语时，表示目的、 原因等意义
动词不定式的时态和语态
第四章
时态形式及用法
一般式：不定式的一般形式为to do，表示动作的一般情况
进行式：不定式的进行式为to be doing，表示动作正在进行
完成式：不定式的完成式为to have done，表示动作已经完成 完成进行式：不定式的完成进行式为to have been doing，表示动作 已经完成且一直持续到现在
常见问题解析
第六章
易混淆点解析
不定式作宾语与动名词作宾语的混淆 不定式作定语与动名词作定语的混淆 不定式作主语与动名词作主语的混淆 不定式作表语与动名词作表语的混淆
常见错误解析
不定式作为宾语补足语时， 动词后面缺少必要的介词
不定式作为主语或宾语时， 动词后面缺少必要的介词
不定式作为状语时，动词后 面缺少必要的介词
不定式作为定语时，动词后 面缺少必要的介词
练习与巩固
第七章
单项选择题
动词不定式作宾语时，其逻辑主语必须是句子的主语。 A. 对 B. 错 答案：A. 对
A. 对 B. 错
动 答 案 ：词A . 对 不 定 式 作 宾 语 补 足 语 时 ， 其 逻 辑 主 语 必 须 是 句 子 的 宾语。 A. 对 B. 错 答案：B. 错
A. 对 B. 错 答案：B. 错
动词不定式作状语时，其逻辑主语必须是句子的主语。 A. 对 B. 错 答案：A. 对
A. 对 B. 错 答案：A. 对
动词不定式作定语时，其逻辑主语必须是句子的宾语。 A. 对 B. 错 答案：B. 错
A. 对 B. 错 答案：B. 错
完形填空题
题目：动词不定式完形填空 内容：提供多个含有动词不定式的句子，要求学生在句子中填写正确的动词不定式形式 目的：帮助学生掌握动词不定式的用法和形式，提高语言运用能力 难度：根据学生水平设置不同难度的题目，包括简单、中等和困难等级别
语法补充动词不定式.ppt
I borrowed some books to read during my
holiday.
用来修饰被序数词、最高级或no, all, any 等限定的中心词。如：
He was the best man to do the job. She was the first woman to win the gold medal in the Olympic Games. 用来修饰的词是抽象名词，常见的有：
after her sister.) 3. 不定式做表语形容词的状语，和句中主
语构成逻辑上的动宾关系时，不定式多 用主动形式；这是因为人们往往认为形 容词后省去了for sb.如：
This book is difficult (for sb.) to understand.
4. 在there be结构中,当说话人考虑的是必须有 人去完成某件事时,不定式用主动形式; 如果 说话人强调的事情本身必须被完成,则用被动 形式.如：
Do you have a knife to cut the watermelon?
(A knife cuts the watermelon.)
2. 不定式和它前面被修饰的名词或代词构 成逻辑上的动宾关系，又和该句主语构 成逻辑上的主谓关系时，不定式常用主 动形式。如：
She has a sister to look after. (She looks
(1) 下列表示人物特征的形容词同of后的名 词或代词关系密切,有意义上的主表关系, 常of与搭配：
brave, careful, careless, clever, considerate, cruel, foolish, good, honest, kind, nice, right, rude, stupid, silly, thoughtful, wise, wrong, etc. 例如： It was very kind of you to come to help me. =You were very kind to could like him. 6. 可以作独立成分修饰全句。
holiday.
用来修饰被序数词、最高级或no, all, any 等限定的中心词。如：
He was the best man to do the job. She was the first woman to win the gold medal in the Olympic Games. 用来修饰的词是抽象名词，常见的有：
after her sister.) 3. 不定式做表语形容词的状语，和句中主
语构成逻辑上的动宾关系时，不定式多 用主动形式；这是因为人们往往认为形 容词后省去了for sb.如：
This book is difficult (for sb.) to understand.
4. 在there be结构中,当说话人考虑的是必须有 人去完成某件事时,不定式用主动形式; 如果 说话人强调的事情本身必须被完成,则用被动 形式.如：
Do you have a knife to cut the watermelon?
(A knife cuts the watermelon.)
2. 不定式和它前面被修饰的名词或代词构 成逻辑上的动宾关系，又和该句主语构 成逻辑上的主谓关系时，不定式常用主 动形式。如：
She has a sister to look after. (She looks
(1) 下列表示人物特征的形容词同of后的名 词或代词关系密切,有意义上的主表关系, 常of与搭配：
brave, careful, careless, clever, considerate, cruel, foolish, good, honest, kind, nice, right, rude, stupid, silly, thoughtful, wise, wrong, etc. 例如： It was very kind of you to come to help me. =You were very kind to could like him. 6. 可以作独立成分修饰全句。
动词不定式PPT课件经典实用
不定式为不及物动词时后面应有必要的介词。 I’m looking for a hotel ___D______. A. stay B. stay at C. to stay D. to stay at
•动词不定式》PPT课件
He hasn’t got a house to live in
I have no pens to write __w_it_h___.
It is easy __fo_r____ her to learn English well. It is clever ___o_f ____ you to solve the problem.
•动词不定式》PPT课件
作主语
2、It takes sb. some time to do sth.
1、I hope to finish it tomorrow .
2、She plans to go and teach in the country.
•动词不定式》PPT课件
作宾语
2、动词＋疑问词+to do
1、我不知道接下来该做什么。
I don’t know__w_h_a_t_to__d_o___ next.
•动词不定式》PPT课件
3、结果状语
too + adj./adv. +to do sth. adj./adv. enough to do sth.
You are too young to do this job. He ran fast enough to catch the bus.
•动词不定式》PPT课件
It is our turn__to__c_l_e_a_n__th__e_c_l_a_s_s_r_o_o_m__. __
•动词不定式》PPT课件
He hasn’t got a house to live in
I have no pens to write __w_it_h___.
It is easy __fo_r____ her to learn English well. It is clever ___o_f ____ you to solve the problem.
•动词不定式》PPT课件
作主语
2、It takes sb. some time to do sth.
1、I hope to finish it tomorrow .
2、She plans to go and teach in the country.
•动词不定式》PPT课件
作宾语
2、动词＋疑问词+to do
1、我不知道接下来该做什么。
I don’t know__w_h_a_t_to__d_o___ next.
•动词不定式》PPT课件
3、结果状语
too + adj./adv. +to do sth. adj./adv. enough to do sth.
You are too young to do this job. He ran fast enough to catch the bus.
•动词不定式》PPT课件
It is our turn__to__c_l_e_a_n__th__e_c_l_a_s_s_r_o_o_m__. __
高中英语 语法 非谓语动词不定式的用法 课件 (共25张PPT)
alarm.
A. To sleep B. Sleeping
C. Sleep
D. Having slept
7. –You should have thanked her before you
left.
--I meant____, but when I was leaving I
couldn’t find her anywhere.
13. mrs. smith warned her daughter
____after drin .
a. never to drive b. to never drive
c. never driving
d. never drive
14. we agreed _____here but so far she
The next train to arrive is from Washington.
I want something to read.
It’s your turn to speak now.
It’s time to go to school.
1. He is lucky to get here on time. 2. Be careful not to catch a cold. 3. They started early so as to catch the
7. he is loo for a room to live in. 8. i study hard to serve the people well. 9. in order not to be late she took a bus.
常见带形式主语it的句型： 1. It is easy ( difficult, important, possible, necessary, good, kind, wise, foolish…) to do sth. 2. It is a pleasure (pity, crime, an honor…) to do sth. 3. It takes (sb.) some time to do sth.
动词不定式的用法(共26张PPT)
（陕西省 2015中考）
to invite him
真题回顾 完成句子
56. 我想邀请他参加我们 的俱乐部。 I want to join our club.
borrow
真题回顾 短文填空
One day just before the summer vacation, he came to 68 some art books.
（to ） do
不定式
用法
知识小结
主语 、宾语、 定语 、表语、 状语、 宾语补足语
考点过关
to help
用所给词的适当形式填空
to visit
主语
1．It’s very nice of you _ (help)me.
宾语
2．We decided _____ (visit) the
to find
2．作宾语 (1)后接不定式作宾语的动词有： want, try, decide, hope, need, wish, agree, expect, refuse, learn，remember, forget, I hope to get there would like/love等。如： before dark.
6．作宾语补足语 (1)后面能接带to的不定式作宾补的动 词有： tell, ask, allow, want,wish, teach, warn, invite, like, encourage等。 如：
The teacher always encourages us to learn English well.
Homework
在课本中找出含有to do以及do的句子各 五个，并注明其在句
我希望天黑以前到那儿。
to invite him
真题回顾 完成句子
56. 我想邀请他参加我们 的俱乐部。 I want to join our club.
borrow
真题回顾 短文填空
One day just before the summer vacation, he came to 68 some art books.
（to ） do
不定式
用法
知识小结
主语 、宾语、 定语 、表语、 状语、 宾语补足语
考点过关
to help
用所给词的适当形式填空
to visit
主语
1．It’s very nice of you _ (help)me.
宾语
2．We decided _____ (visit) the
to find
2．作宾语 (1)后接不定式作宾语的动词有： want, try, decide, hope, need, wish, agree, expect, refuse, learn，remember, forget, I hope to get there would like/love等。如： before dark.
6．作宾语补足语 (1)后面能接带to的不定式作宾补的动 词有： tell, ask, allow, want,wish, teach, warn, invite, like, encourage等。 如：
The teacher always encourages us to learn English well.
Homework
在课本中找出含有to do以及do的句子各 五个，并注明其在句
我希望天黑以前到那儿。
高中语法 动词不定式 共62张ppt
We hurried to the railway station, only to find the train had just left. 我们匆匆赶去火车站，结果却发现火车刚刚离开。
三、不定式充当的句子成分
6. 不定式作状语 2）作结果状语 ② so… as to/such as to She looks so beautiful as to attract all of us. Her voicstare.
challenge command encourage persuade recommend
get hate like press warn
cause have mean want wish
compel help make request urge
在let, make, have, see, hear, feel, watch, notice, listen to等动 词后面作宾补的不定式，to要省略。
三、不定式充当的句子成分
2. 动词 + to do（作宾语） 1) 直接跟在及物动词后面作宾语。此时，句子有两个特点： ① 句子主语和不定式的逻辑主语是一致的，及两个动作都是由一个人发出的。 ② 句子谓语动词多是描写态度，不定式动词说明行为。
I hope to see you again.
This company refused to cooperate with us.
1）主谓关系 I don’t think he is the best man to do the job. The next train to arrive is from New York. Jack was the only person to survive the air crash.
三、不定式充当的句子成分
6. 不定式作状语 2）作结果状语 ② so… as to/such as to She looks so beautiful as to attract all of us. Her voicstare.
challenge command encourage persuade recommend
get hate like press warn
cause have mean want wish
compel help make request urge
在let, make, have, see, hear, feel, watch, notice, listen to等动 词后面作宾补的不定式，to要省略。
三、不定式充当的句子成分
2. 动词 + to do（作宾语） 1) 直接跟在及物动词后面作宾语。此时，句子有两个特点： ① 句子主语和不定式的逻辑主语是一致的，及两个动作都是由一个人发出的。 ② 句子谓语动词多是描写态度，不定式动词说明行为。
I hope to see you again.
This company refused to cooperate with us.
1）主谓关系 I don’t think he is the best man to do the job. The next train to arrive is from New York. Jack was the only person to survive the air crash.
动词不定式(初二) (共18张PPT)
17
定语
• The best way to raise money is to sell 表语
newspapers.
• Why don’t we put on a show to raise目的状语
mooks.
• I think we can sell flow目e的rs状to语raise money at the weekend.
bike.
结果状语
• It’s too far to cycle.
宾语
• You need to find the cost宾fo语r the bus.
• I’d love to go by plane.
• We’ll decide on定th语e best way to travel on our field trip.
• I have some books to read. • To read是修饰前面的名词books的定语。 • Do you have anything to tell him? • To tell him在这里是修饰前面的代词
anything。 • Would you please give me a room to live
in? • 不定式在这里是修饰前面的名词room的。
9
五、不定式作宾语朴足语
allow sb. (not) to do sth
•
一t些ell及sb物. (动no词t)除to要d求o s接th宾语外，有时还需 要a有sk宾s语b.补(n足ot语) t。o d说o明st宾h 语的行为、状态、
特a征dv。is这e s时b意. (n思o才t) 相to对do完s整th。常要求不定
• We were very excited to hear the news. • I am sorry to hear that.
动词不定式的用法ppt经典实用
•2024/4/27
•动词不定式的用法ppt
• 想要去做某事
• 2. 计划去做某事want to do sth
• 3. 希望去做某事hope todo sth
4. 期待去做某事 expect to do sth
5. 决定去做某事 decide to do sth
6. 忘记去做某事 remember to do sth
her homework. 6. Let's try _t_o_f_i_n_is_h_(finish) the work on time.
动词不定式的用法ppt
语法训练 动词不定式做宾语补足语
1. She expects me t_o__w_a_i_t (wait) for her at 7:00. 2. The teacher asked us _t_o_b_e__ (be) quiet. 3. The old man wants his children _to__v_is_i_t_
语法训练 动词不定式做主语
1. It usually takes me over two hours _t_o_f_in_i_s_h_ (finish) my homework.
2. It was their dream _t_o_h_a_v_e_(have) a bridge. 3. It's your turn _to__c_le_a_n_(clean) the blackboard. 4. It's important for us _t_o_l_e_a_rn_(learn) English. {5. It's very kind of you _to__h_e_lp__(help) me a lot.} {6. It's time for me _t_o_g_o__(go) home.}
高中非谓语动词不定式课件(共144张PPT)
由此可见，连词在决定句子结构以及谓语动词和非谓语 动词的使用中起着关键的作用。
非谓语动词使用条件
一个句子当中，已经存在一个主句（谓语动词）,又没有 连词的情况下, 还有别的动词出现时。
opened (open) the door 1. The man took out the key, _________ and entered the room. reading (read) a book. 2. The man sat there, _________ Work (work) hard, and you will succeed. 3. _______ discussed (discuss) at the meeting 4. The question ___________ yesterday is of great importance. To improve 5. ___________(improve) his spoken English, Mr. Zhang goes to the English corner every Saturday.
非 谓 语 动 词
动词不定式 （to do）
动名词 (doing) 分词
现在分词 (doing) 过去分词 (done)
非谓语 动词 不定式 动名词 现在分词 过去分词
主语 √ √
宾语
表语
定语 √ √ √ √
宾补 √
状语 √
√
√
√
√ √ √
√
√ √
√
英语一句话中只能有一个主谓结构 如果出现更多动词： • 加连词（and / but / so…） • 放入从句 • 变为非谓语动词
3. 强调 不定式的动作在谓语动词之前发生时， 用不定式完成式 to have written He is said _________________ (write) a novel last year.
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1. 动词不定式作主语
有时候为了保持句子平衡，常用it作 形式主语，放到句首，而将作真实 主语的动词不定式放到句末。
It will take a whole day to get there by car.
It is impossible for me to finish the work in a week.
What I would suggest is to start work at once.
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注：在某些句型中，当主语部分有动作 动词do 时，作表语的不定式可以省略符 号 “to”，如：
All we have to do is push the button.
The only thing I can do now is go on by myself.
动词不定式
1.作主语 2.作宾语
1. 动词不定式 的用法
3.作定语 4.作表语 5.作宾补
6.作状语
2.动词不定式的时态和语态
3. 巩固练习
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1. 动词不定式作主语 动词不定式作主语，谓语动词用第三
人称单数。
To get there by car will take a whole day.
How to get enough money is still a question.
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2 ． 主 语 是 以 aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为中心词的名词词组，或以 what 引导的名词性从句表示，表语用不定 式说明其内容，如：
My idea is to climb the mountain from the north. My suggestion is to start work at once.
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2. 动词不定式作宾语 动词不定式作宾语常用于下列动词后：
want, agree, decide, manage, wish, hope, ask, like, love , choose, promise, continue, plan, learn, expect, offer, prepare, refuse, pretend, attempt, intend, threaten, seek, hesitate, long, desire, fail等 等。
All I could do was send him a telegram.
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5.动词不定式作宾补 常跟动词不定式作宾补的动词有：
（1）可接带to的不定式作宾补的动 词有：
ask, get, allow, forbid, prefer, force, inspire, advise, cause, tell, order, warn, teach, permit, wish, invite, encourage等
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动词不定式作宾语应注意的问题
2. 如果不定式作宾语而后面又有一个 宾语补足语，这时要用it作形式宾语 而把这个动词不定式放到补语后。
I feel it my duty to help you.
I once thought it impossible for us to finish the job in such a limited time.
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3.动词不定式作定语
动词不定式作定语，它与所修饰的名 词或代词可能是主谓关系，也可能是 动宾关系。如果是动宾关系，不定式 主动表示被动。 He was the last one to leave school yesterday.
We have much homework to do everyday.
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（2）可跟省to的动词不定式作宾补的 动词有： 在部分感官动词和使役动词后，如：
see, watch, notice, observe, look at, listen to, feel, make, let, have
注：help后可跟省to或带to的不定式 作宾补。
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The teacher had us recite the text every day.
I was let to do the experiment alone.
Was he noticed to leave the house?
动词不定式在主动语态中用省to的形 式作宾补，但在被动语态的句子中， 要用带to的形式作主语补语。
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动词不定式作宾语应注意的问题 1.有些动词后跟动词不定式和动名词 作宾语意义截然不同
try, go on, stop, mean, regret, remember, forget等
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5பைடு நூலகம்
try to do sth. 尽力去做某事 try doing sth. 试一试，试试看 Try knocking at the back door if nobody hears you at the front door.
Try to get there on time.
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forget to do sth. 忘了去做某事
forget doing sth.忘了做过某事
I forget telling her about it
I forget to bring the purse with me when I left home this morning.
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4.动词不定式作表语
1．主语和表语都是不定式（其含义 往往一是条件，一是结果），如：
To be kind to the enemy is to be cruel to the people.
To do that would be to cut the foot to fit the shoe.
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remember to do sth.记住去做某事
remember doing sth.记得做过某事
I remember reading the story in some book. Remember to post the letter for me when you go to the post office.