高中英语动词不定式的用法完整版课件
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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).
高中英语动词不定式(共26张PPT)
C. the holder to use D. the holder uses
Because of the recent accident, our parents forbid my brother and me from swimming in the river unless someone agrees to watch over us.
Her husband can do everything except cook.
He wanted nothing but to stay there. 注意：如果but 或except 之前有实义动词do 的限定性
是或非限定形式，其宾语为不带to的不定式，否则为 带to的不定式。 Lots of empty bottles were found under the old man’s bed. He must have done nothing but ____ (drink） I thought you had planned to pradcrtiincekpiano today. “I did nothing but___ letters all day.”
careless,,clever,good,foolish,honest,kind,lazy,nice,right,silly, stupid,wise,等表示赞扬或批评的形容词，不定式前的 sb.可作其逻辑主语。
It is better to die on one’s feet than ____
A. to write B. write C. writing D. wrote
5、不定式（短语）做宾语补足语
在复合宾语中，动词不定式可充当宾语补 足语，如下动词常跟这种复合宾语：want, wish, ask, tell, order, beg, permit, help, advise, expect, encourage, persuade, allow, prepare, cause, force, call on, wait for, invite.，observe, intend, press, remind warn, lead, command 等， 如：
Because of the recent accident, our parents forbid my brother and me from swimming in the river unless someone agrees to watch over us.
Her husband can do everything except cook.
He wanted nothing but to stay there. 注意：如果but 或except 之前有实义动词do 的限定性
是或非限定形式，其宾语为不带to的不定式，否则为 带to的不定式。 Lots of empty bottles were found under the old man’s bed. He must have done nothing but ____ (drink） I thought you had planned to pradcrtiincekpiano today. “I did nothing but___ letters all day.”
careless,,clever,good,foolish,honest,kind,lazy,nice,right,silly, stupid,wise,等表示赞扬或批评的形容词，不定式前的 sb.可作其逻辑主语。
It is better to die on one’s feet than ____
A. to write B. write C. writing D. wrote
5、不定式（短语）做宾语补足语
在复合宾语中，动词不定式可充当宾语补 足语，如下动词常跟这种复合宾语：want, wish, ask, tell, order, beg, permit, help, advise, expect, encourage, persuade, allow, prepare, cause, force, call on, wait for, invite.，observe, intend, press, remind warn, lead, command 等， 如：
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”。
高中英语语法动词不定式PPT课件
To give up smoking is right.
.
4
作宾语
1. Fred 没有钱，所以他决定找一份工作。
Fred didn’t have any money, so he decided to look for a job.
2. 他答应不告述任何人这事。
He promised not to tell anyone about it.
目的状语: 常用的结构—to do; in order to do, so as to do, so/ such …as to do, etc.
I come here to say good-bye to you. 结果状语: 常与only , enough 或too连用。
He studied hard only to fail the exam.
He was seen to go upstairs. 有人看见他上楼去了。
Be careful!
.
17
动词不定式的时态
㈠. 一般式( to do ).
不定式的一般式所 表示的动作（状态） 与句子谓语的动作 同时（或几乎同时） 发生，或之后发生。
1. He seems to know this. 2. I hope to see you next week.
A. to eat not C. not to eat
B. eating not D. not eating
8. We agreed ___ here, but so far she hasn’t turned out yet.
2. He claimed ____in the supermarket when he was doing shopping yesterday.
.
4
作宾语
1. Fred 没有钱，所以他决定找一份工作。
Fred didn’t have any money, so he decided to look for a job.
2. 他答应不告述任何人这事。
He promised not to tell anyone about it.
目的状语: 常用的结构—to do; in order to do, so as to do, so/ such …as to do, etc.
I come here to say good-bye to you. 结果状语: 常与only , enough 或too连用。
He studied hard only to fail the exam.
He was seen to go upstairs. 有人看见他上楼去了。
Be careful!
.
17
动词不定式的时态
㈠. 一般式( to do ).
不定式的一般式所 表示的动作（状态） 与句子谓语的动作 同时（或几乎同时） 发生，或之后发生。
1. He seems to know this. 2. I hope to see you next week.
A. to eat not C. not to eat
B. eating not D. not eating
8. We agreed ___ here, but so far she hasn’t turned out yet.
2. He claimed ____in the supermarket when he was doing shopping yesterday.
不定式的用法课件.ppt
①表目的： He worked day and night to get the money. She sold her hair to buy the watch chain. 注意不定式放句首时，逻辑主语与句子主语要一致： wrong：To save money, every means has been tried. right：To save money, he has tried every means. wrong：To learn English well, a dictionary is needed. right：To learn English well, he needs a dictionary.
All you have to do is (to) finish the job quickly.
不定式作表语时一般紧跟在系动词be, seem, remain, appear , get等后面，用来说明主语的内容。
常见的主语有： one’s dream, business, wish, idea, plan, job,
2 The purpose of new technologies is to make life easier, ___ it more difficult. A not make B not to make C not making D do not make
3. I’ve worked with children before, so I know what ___ in my new job. A. expected B. to expect C to be expecting D expects
有些动词如make, let, see, watch, hear, feel, have等与不带有to 的不定式连用，但改为被动语态时，不定式要加to, 如：
高中英语动词不定式的用法---完整版课件
巩固练习
1. Several of these washes and dryers are out of order and__D____.
A.need to be repairing B. repairing is required of them C. require that they be repaired. D. need to be repaired. 解析：and并列谓语动词， need to be repaired相当 于need repairing.
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.
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.
2.— I wish you had brought your family with you.
— I’ll get them ___B____ next time.
A. coming
B. to come
C. come
D. have come
解析：使役动词get后跟带to的动词不定 式作宾补，let，make, have后跟省to的 动词不定式作宾补。
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：
高中英语动词不定式课件
高中英语动词不定式课件xx年xx月xx日CATALOGUE目录•动词不定式的概述•动词不定式的分类•动词不定式的用法举例•动词不定式的特殊用法举例•动词不定式的练习•总结与展望01动词不定式的概述动词不定式是由小品词to和动词原形构成的，通常表示一种行为或动作，在句子中作不同的成分。
动词不定式的形式包括三种：一般式、进行式和完成式。
动词不定式的定义动词不定式的形式动词不定式的形式根据动词原形和时态的不同而有所变化。
进行式使用to be+动词现在分词形式。
一般式包括to+动词原形和to+have+过去分词两种形式。
完成式使用to have+过去分词形式。
动词不定式的用法作主语时，动词不定式需要用单数形式。
作表语时，动词不定式可以用来描述主语的特征或状态。
作状语时，动词不定式可以表示时间、原因、目的、结果等。
动词不定式可以作主语、宾语、表语、定语和状语等。
作宾语时，动词不定式可以表示一种具体的行为或动作。
作定语时，动词不定式可以修饰名词或代词，表示其性质、特征或状态。
01020304050602动词不定式的分类to + 动词原形，如to go，toswim等动词不定式的构成基本形式to be + 动词的过去分词，如to be given，to be finished等被动形式to be + 动词的现在分词，如to be reading，to be writing等进行形式动词不定式的用法分类作主语作宾语Array如To learn a foreign language is如I want to learn English.useful.作补语作状语如He asked me to help him.如To catch the early bus，I getup early.动词不定式的特殊用法如Let sb do sth，感官动词加宾语加不定式等省略to的不定式当不定式的动作执行者不是句子的主语时，需要用for sb to do sth的结构不定式的逻辑主语根据句子表达的时间和主被动关系，使用正确的不定式的时态和语态不定式的时态和语态不定式强调一次性的动作，而动名词强调习惯性的动作不定式和动名词的区别03动词不定式的用法举例表示抽象、整体的行为或状态总结词详细描述例如动词不定式作主语可以用来表示一个动作或行为的基本情况，常与形式主语it连用To learn English well is necessary.030201动作行为的具体执行者总结词动词不定式作宾语表示一个具体的动作行为，常与某些特定的动词连用详细描述He decided to learn piano.例如修饰名词或代词总结词动词不定式作定语用来修饰名词或代词，表示名词或代词的性质、身份等详细描述He has a dream to become a doctor.例如详细描述动词不定式作状语用来修饰动词、形容词、副词或整个句子，表示行为或状态的原因、目的、条件等总结词修饰动词、形容词、副词或整个句子例如To help others is to helpyourself.动词不定式作状语04动词不定式的特殊用法举例动词不定式的省略情况主要出现在句子的主语、宾语和状语中。
高中语法——动词不定式(54张PPT)
不定式作状语的作用
1. He spoke loudly (so as / in order) to be heard. 表示目的
2. He was so foolish as to believe it. = He was such a fool as to believe it. = He was foolish enough to believe it.
The definition of infinitive
不定式由“to + do (动词原形)”构成, 其 否定形式是“not to do”, 不定式可以带 宾语或状语构成不定式短语, 没有人称和 数的变化, 但有时态和语态的变化。
1. 主语 (subject) 2. 表语 (predicative) 3. 宾语 (object) 4. 宾补 (object complement) 5. 定语 (attribute) 6. 状语 (adverbial) 7. 独立结构 (absolute construction)
形式 一般式 进行式
主动
to do to be doing
完成式 to have done
完成进 to have been 行式 doing
被动
to be done
to have been done
I am glad to see you. He has decided to give her some money. 表示的动作通常与谓语所表示的动作 或状态同时或者几乎同时发生，或是 在它之后发生。
4. 不定式作宾补 (object complement) My mum asks me to play the piano two hours every day.
动词不定式的基本用法归纳优秀课件
He is not a man to tell lies.
There will not be enough space to stand in on the earth 2、作定语的不定式与所修饰的名词之间是动宾关系， 不定式动词又是不及物动词时，应在该动词上加上 一个介词，如;
He has a nice pen to write with.
3．作表语和宾语不足语
❖ 动词不定式作表语，一是主语有不定式充当；二是 主语由抽象名词充当。
To teach is to learn. My job is to help the patient. 【注意】如果在主语中（通常在主语从句或修饰主语 的定语从句中）又实意动词do时，作表语的动词不 定式省略to。 All I want to do now (What I want to do now) is fill my stomach.
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
C．动词不定式还可以用作介词宾语，但仅限于 介词except和but（除了）。 ❖常用句型有： There is nothing to do but+动词原形 do nothing but+动词（除做….之外别无选择） can but+动词原形 （只能原形(“只有做……) have no choice but to do ，只得） cannot help/choose but+动词原形(不能不……）
动词不定式的基本用法归纳优 秀课件
一、动词不定时的形式
❖肯定式：to do sth ❖否定式：not to do sth. ❖ 被动式：to be done ❖完成式：to have done
There will not be enough space to stand in on the earth 2、作定语的不定式与所修饰的名词之间是动宾关系， 不定式动词又是不及物动词时，应在该动词上加上 一个介词，如;
He has a nice pen to write with.
3．作表语和宾语不足语
❖ 动词不定式作表语，一是主语有不定式充当；二是 主语由抽象名词充当。
To teach is to learn. My job is to help the patient. 【注意】如果在主语中（通常在主语从句或修饰主语 的定语从句中）又实意动词do时，作表语的动词不 定式省略to。 All I want to do now (What I want to do now) is fill my stomach.
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
C．动词不定式还可以用作介词宾语，但仅限于 介词except和but（除了）。 ❖常用句型有： There is nothing to do but+动词原形 do nothing but+动词（除做….之外别无选择） can but+动词原形 （只能原形(“只有做……) have no choice but to do ，只得） cannot help/choose but+动词原形(不能不……）
动词不定式的基本用法归纳优 秀课件
一、动词不定时的形式
❖肯定式：to do sth ❖否定式：not to do sth. ❖ 被动式：to be done ❖完成式：to have done
高考英语动词不定式精讲解课件(共34张PPT)
B. 做结果状语,常与副词only, enough 或too连用。 only to do “不料(却)……,结果(却)……", 表示 一个没有料到的结果
He studied hard only to fail the exam. The road is too dangerous to cross.
请告诉你的小孩不要在街上玩耍。
Please tell your child not to play in the street.
她检查名字为了不犯错误。
She checked the names so as not to make mistakes.
三、时态和语态
一般式 进行式 完成式
主动形式 to do
C. 不定式做原因状语, 一般用在句尾 I’m glad to see you. They are quite surprised to see the great changes taking place in the area.
(6). 做宾语补足语
A. 常带to的不定式做宾语补足语的动词有: ask,
allow, require, advise, permit, expect, get,
forbid, invite, persuade, urge, order, force, cause, encourage等
结构: ask / allow sb. to do sth./ sth. to be done
5. “Have you decided when _A____?” “Yes,
4. T__o_m__a_k_e_(make) things worse, my car was held up by the traffic accident.
He studied hard only to fail the exam. The road is too dangerous to cross.
请告诉你的小孩不要在街上玩耍。
Please tell your child not to play in the street.
她检查名字为了不犯错误。
She checked the names so as not to make mistakes.
三、时态和语态
一般式 进行式 完成式
主动形式 to do
C. 不定式做原因状语, 一般用在句尾 I’m glad to see you. They are quite surprised to see the great changes taking place in the area.
(6). 做宾语补足语
A. 常带to的不定式做宾语补足语的动词有: ask,
allow, require, advise, permit, expect, get,
forbid, invite, persuade, urge, order, force, cause, encourage等
结构: ask / allow sb. to do sth./ sth. to be done
5. “Have you decided when _A____?” “Yes,
4. T__o_m__a_k_e_(make) things worse, my car was held up by the traffic accident.
不定式的用法总结 ppt课件
begin\start doing sth
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• 后面只接动名词做宾的动词
• 实践完成听建议 • practice finish suggest • 习惯继续别放弃 • be used to keep on give up • 喜欢思念忙介意 • enjoy miss be busy mind • 不禁考虑会想你 • can’t help consider feel like
The policeman saw a child play in the street. Don’t make the children do such heavy work. Shall I have him come here? 但是, 改为被动结构后, 应补出省略的to。 e.g. He was seen to break the window.
• “太阳当空照，花儿对我笑，小鸟说早早早……”
精品资料
• 你怎么称呼老师？
• 如果老师最后没有总结一节课的重点的难点，你 是否会认为老师的教学方法需要改进？
• 你所经历的课堂，是讲座式还是讨论式？ • 教师的教鞭
• “不怕太阳晒，也不怕那风雨狂，只怕先生骂我 笨，没有学问无颜见爹娘 ……”
• “太阳当空照，花儿对我笑，小鸟说早早早……”
6. 作状语 目的状语: 常用的结构—to do; in order to do, so as to do, so/ such …as to do, etc. I come here to say good-bye to you. 结果状语: 常与only , enough 或too连用。 He studied hard only to fail the exam. He is old enough to go to school.
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• 后面只接动名词做宾的动词
• 实践完成听建议 • practice finish suggest • 习惯继续别放弃 • be used to keep on give up • 喜欢思念忙介意 • enjoy miss be busy mind • 不禁考虑会想你 • can’t help consider feel like
The policeman saw a child play in the street. Don’t make the children do such heavy work. Shall I have him come here? 但是, 改为被动结构后, 应补出省略的to。 e.g. He was seen to break the window.
• “太阳当空照，花儿对我笑，小鸟说早早早……”
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• 你怎么称呼老师？
• 如果老师最后没有总结一节课的重点的难点，你 是否会认为老师的教学方法需要改进？
• 你所经历的课堂，是讲座式还是讨论式？ • 教师的教鞭
• “不怕太阳晒，也不怕那风雨狂，只怕先生骂我 笨，没有学问无颜见爹娘 ……”
• “太阳当空照，花儿对我笑，小鸟说早早早……”
6. 作状语 目的状语: 常用的结构—to do; in order to do, so as to do, so/ such …as to do, etc. I come here to say good-bye to you. 结果状语: 常与only , enough 或too连用。 He studied hard only to fail the exam. He is old enough to go to school.
高中英语语法 动词不定式的用法(31张PPT)
3> 不定式用在介词but, except, besides 后时,如果这些介词前有行为动词do的 各种形式,那么介词后的不定式不带to, 相反则带to.
(1). She could do nothing but cry. (2). I have no choice but to go. (3).What do you like to do besides sleep.
(5). 定语 (常常表示将来的动作)
I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about.
(如果不定式中的动词是不及物动词, 则不定式中要有介词.)
不定式
不定式由“to+动词原形”构成,其否定形
式是“not/never to do”,不定式没有 人__称__和__数__的变化，有时态和语态的变化。 不定式可以作主语、宾语、状语、表语和 定语，但不能单独作谓语。不定式的逻辑 主语有时用“for+名词或代词宾格”构成 。
一.结构 : to do (否定) not/never to do
(3) 宾语
I want to go home. The workers demanded to get better pay. I found it necessary to talk to him again.
think/ consider/ find it + adj.+ to do
常用动词不定式作宾语的动词有：
请给我一支写字的笔.
Please give me a pen to write with.
高中 语法 动词不定式 共62张PPT
原句的主语she作不定式to listen to的宾语。
例句 She is very nice to talk to. Mary is easy to get on with. English is difficult to speak.
注意以下三点：
1. 不定式动词一般不用被动
3. 不定式所带介词不能省
attempt determine intend prepare remember
beg expect learn pretend trouble
begin fail like promise try
bother forget love propose want
三、不定式充当的句子成分
3. 动词 + 连接词 + to do(宾语) I wonder who to invite. Show us what to do. I don’t know whether to answer his letter.
三、不定式充当的句子成分
6. 不定式作状语 2）作结果状语 ③ enough…to He is not old enough to go to school. The teacher speaks loudly enough to make herself heard clearly.
三、不定式充当的句子成分
常用于这种结构中的动词有：
advice declare instruct need remind
allow let intend oblige teach
ask expect invite order tell
beg forbid judge permit tempt
believe challenge force command leave encourage prefer persuade trouble recommend
例句 She is very nice to talk to. Mary is easy to get on with. English is difficult to speak.
注意以下三点：
1. 不定式动词一般不用被动
3. 不定式所带介词不能省
attempt determine intend prepare remember
beg expect learn pretend trouble
begin fail like promise try
bother forget love propose want
三、不定式充当的句子成分
3. 动词 + 连接词 + to do(宾语) I wonder who to invite. Show us what to do. I don’t know whether to answer his letter.
三、不定式充当的句子成分
6. 不定式作状语 2）作结果状语 ③ enough…to He is not old enough to go to school. The teacher speaks loudly enough to make herself heard clearly.
三、不定式充当的句子成分
常用于这种结构中的动词有：
advice declare instruct need remind
allow let intend oblige teach
ask expect invite order tell
beg forbid judge permit tempt
believe challenge force command leave encourage prefer persuade trouble recommend
动词不定式的基本用法归纳PPT课件
→Those men were made to work day and night.
第七页，课件共有9页
5.定语
1、不定式与被修饰的名词往往构成逻辑上的关系。如 名词为不定式的逻辑主语，构成主谓关系； 若名词为 逻辑宾语，则构成动宾关系； He is not a man to tell lies.
There will not be enough space to stand in on the earth 2、作定语的不定式与所修饰的名词之间是动宾关系， 不定
式动词又是不及物动词时，应在该动词上加上一个介词， 如; He has a nice pen to write with.
He is looking for a room to live in. He is said the best way to travel by is on foot.
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
第四页，课件共有9页
C．动词不定式还可以用作介词宾语，但仅限于介词 except和but（除了）。 ❖常用句型有： There is nothing to do but+动词原形 do nothing but+动词（除做….之外别无选择） can but+动词原形 （只能原形(“只有做……) have no choice but to do ，只得） cannot help/choose but+动词原形(不能不……）
The question is difficult to answer.。 有些不定式短语可以做独立成份，通常放在句首，
第七页，课件共有9页
5.定语
1、不定式与被修饰的名词往往构成逻辑上的关系。如 名词为不定式的逻辑主语，构成主谓关系； 若名词为 逻辑宾语，则构成动宾关系； He is not a man to tell lies.
There will not be enough space to stand in on the earth 2、作定语的不定式与所修饰的名词之间是动宾关系， 不定
式动词又是不及物动词时，应在该动词上加上一个介词， 如; He has a nice pen to write with.
He is looking for a room to live in. He is said the best way to travel by is on foot.
I think it necessary to report the thing to the teacher.
I find it interesting to work with him.
第四页，课件共有9页
C．动词不定式还可以用作介词宾语，但仅限于介词 except和but（除了）。 ❖常用句型有： There is nothing to do but+动词原形 do nothing but+动词（除做….之外别无选择） can but+动词原形 （只能原形(“只有做……) have no choice but to do ，只得） cannot help/choose but+动词原形(不能不……）
The question is difficult to answer.。 有些不定式短语可以做独立成份，通常放在句首，
动词不定式的用法PPT课件
• My job is to help the patient。我的工作是帮助病人
• 动词不定式（短语）作表语常用于系词be的后面。例：
• His work is to drive a car. 他的工作是开车。 • My job is to feed animals. 我的工作是饲养动物。 • Her ambition is to be a doctor. 她的理想是当医生。
•
I want you to go now. 我想让你现在就走。
•
Her parents wish her to be a teacher.她父母
亲希望她当老师。
第16页/共33页
动词不定式做宾语补足语
• 2.省“to”的不定式作宾语补足语： • Let / make / have sb. do sth. • Let the boy go out now. 让那个男孩出去。 • The boy made the baby cry. 男孩弄哭了这个小
动词不定式做宾语
• *如果and连接两个动词不定式，第二个动词不定式一般省“to” 例：
• He wants to go and have a swim with us. 他想和我们一起去游泳
• 若作宾语的动词不定式（短语）带有宾语补足语，往往把不定式短 语放在宾补后，用it作形式宾语。句型为：主语+find（feel,think belive,consider,etc）+it+adj\n+to do sth。
第20页/共33页
动词不定式做定语
• *动词不定式（短语）作定语修饰名词时，与其所修饰的词具 有一种动宾关系，如果不定式中的动词为不及物动词时，其后 应加上一个含义上所需要的介词。例：
• 动词不定式（短语）作表语常用于系词be的后面。例：
• His work is to drive a car. 他的工作是开车。 • My job is to feed animals. 我的工作是饲养动物。 • Her ambition is to be a doctor. 她的理想是当医生。
•
I want you to go now. 我想让你现在就走。
•
Her parents wish her to be a teacher.她父母
亲希望她当老师。
第16页/共33页
动词不定式做宾语补足语
• 2.省“to”的不定式作宾语补足语： • Let / make / have sb. do sth. • Let the boy go out now. 让那个男孩出去。 • The boy made the baby cry. 男孩弄哭了这个小
动词不定式做宾语
• *如果and连接两个动词不定式，第二个动词不定式一般省“to” 例：
• He wants to go and have a swim with us. 他想和我们一起去游泳
• 若作宾语的动词不定式（短语）带有宾语补足语，往往把不定式短 语放在宾补后，用it作形式宾语。句型为：主语+find（feel,think belive,consider,etc）+it+adj\n+to do sth。
第20页/共33页
动词不定式做定语
• *动词不定式（短语）作定语修饰名词时，与其所修饰的词具 有一种动宾关系，如果不定式中的动词为不及物动词时，其后 应加上一个含义上所需要的介词。例：
高中英语语法 不定式的用法课件(共20张)
We found it difficult to work with him. He always has a lot of meetings to attend. He is looking for a room to live in. I study hard to serve the people well. In order not to be late she took a bus.
不定式作表语时一般紧跟在系动词be, seem, remain, appear, get等后面，用来 说明主语的内容。 常见的主语有：one’s dream, business, wish, idea, plan, job, work, task, duty, what one wants to do… My wish is to be a doctor. My chief purpose is to point out the difficulties of the matter.
为了避免重复，作宾语的不定式第二次 出现时往往省略，只保留不定式符号。 1. 在want, wish, hope, like, hate, plan, try, love 等词后. You can try it again if you want to.
The teacher told us not to be so noisy in the class. I expect you to give me some help in the experiment. Father will not allow us to play on the street. We believe him to be guilty.
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.
高中英语动词不定式的用法ppt课件
They will attempt to cross the river tonight.
→ They will make another attempt to cross the river tonight.
She promised not to do that again.
→ She made a promise not to do that again.
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E． 不定式的被动形式 当不定式逻辑上的主语是这个不定式表
示的动作的承受者时，不定式一般要用被动形式。不定式的被动 形式根据其与谓语动作发生的先后关系，有一般式和完成时两种。 1．一般式 to be done These are the books to be given out to the students. 这些是要发给学 生的书。 2．完成式 to have been done The novel is said to have been translated into many languages. 据说这 部小说已被译成多种语言。
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一、不定式结构作主语
To see one time is better than to hear a hundred times.
To persevere means victory! 注①：在很多情况下，特别是在口语中，常采用先行it代替主语， 而把不定式后置：
It’s a great pleasure to be here.
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注③：不定式结构的逻辑主语通常可在特定的上下文或情景
中看出，也可以由“ for + 名词词组” 来表示，如：
It is not hard for one to do a bit of good.
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We have much homework to do everyday.
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.
动. 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
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.
All I could do was send him a telegram.
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
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
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.
English.
It is difficult for him to finish the
task in such a short time. It is very nice of you to help me.
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。
复合结构：
1)for sb. to do sth 2) (It is +性格adj+)of sb. to do sth 性格adj：nice, kind, cruel, thoughtful, careful, careless… It is very important for us to learn
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.
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.
I feel it my duty to help you.
I once thought it impossible for us to finish the job in such a limited time.
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.
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：
All we have to do is push the button.
The only thing I can do now is go on by myself.
Try to get there on time.
mean to do sth.打算做某事
mean doing sth.意味着做某事
I won’t wait if it means delaying a week. I meant to help you, but I was busy at that moment.
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.
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。
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.
remember to do sth.记住去做某事
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.
动. 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
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.
All I could do was send him a telegram.
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
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
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.
English.
It is difficult for him to finish the
task in such a short time. It is very nice of you to help me.
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。
复合结构：
1)for sb. to do sth 2) (It is +性格adj+)of sb. to do sth 性格adj：nice, kind, cruel, thoughtful, careful, careless… It is very important for us to learn
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.
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.
I feel it my duty to help you.
I once thought it impossible for us to finish the job in such a limited time.
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.
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：
All we have to do is push the button.
The only thing I can do now is go on by myself.
Try to get there on time.
mean to do sth.打算做某事
mean doing sth.意味着做某事
I won’t wait if it means delaying a week. I meant to help you, but I was busy at that moment.
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.
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。
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.
remember to do sth.记住去做某事