不定式to do公开课
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语法总复习-不定式to-do-用法归纳一(公开课课件)
05
练习与巩固
选择题练习
01
不定式to-do作宾语
02
选择正确的句子填空：I want _______ a cake. (make, to make)
03
选择题答案：to make
04
不定式to-do作定语
05
选择正确的句子填空：I have a project _______ by the end of the year. (complete, to complete)
翻译题答案：to travel
THANK YOU
感谢聆听
100%
时态和语态不同
不定式可用于各种时态和语态， 现在分词则主要用于进行时态。
80%
功能不同
不定式常作为目的状语、宾语、 表语等，现在分词则常作为定语 、状语等。
不定式与过去分词的比较
形式不同
不定式为“to + 动词原形”， 过去分词为“动词-ed形式”。
时态和语态不同
不定式可用于各种时态和语态 ，过去分词则主要用于被动语 态。
在一些固定搭配中，不定式的否定形式可能会采用其他形式。例 如：I have no choice but to wait.
不定式的时态和语态
01
不定式可以有多种时态，包括一 般现在时、一般过去时、将来时 等。例如：I want to go home (go home).
02
不定式也可以有被动语态。例如 ：The book needs to be finished (be finished).
06
选择题答案：to complete
填空题练习
不定式to-do作状语
01
填空题答案：to attend
高中动词不定式自制课件公开课
二、 构成
肯定： 否定： to + do not to + do
三、 用法
• • • • • • • 主语（Subject） 宾语（Object） 宾补（Object complement） 定语（Attributive） 状语（Adverbial） 表语（Predicative） 与疑问词连用（interrogative ）
1 She ran fast in________________( order to catch 为了赶上) the first bus. too tired to fall asleep 2、I was______________________ (太累了，难于入睡。)
• 难点突破2：
• to do不定式与only或者never连用，表示 出乎意料的结果。 • He hurried to the station, only to find the train had left. • He left home at the age of 10, never to come back again.
你还学过哪些可以接不定式作宾语的动 词？
想做某事 want to do 愿意做某事 would like to do 希望做某事 hope to do / wish to do 决定做某事 decide to do 需要做某事 need to do 同意做某事 agree to do 计划做某事 plan to do 学会做某事 learn to do 主动提出做某事 offer to do
含义不同：
go on to do sth 继续做(另一件）事 go on doing sth 继续做（同一件） 事
can’t help to do 不能帮忙做…事 can’t help doing 禁不住做…事
动词不定式-公开课PPT课件
The Infinitive “To Do”
XiongShulan
.
1
English Chocolate
Task 1: Read the following English
quotes!
.
2
Nothing in life is to be feared. It is only to
be understood.
Possible or impossible?
In order to make my dream
come true, what should I do?
How much time do I have to
make my dream come true? 1
year or 2y.ears?
13
Task 5: Strike while the iron is hot!
In order to make my dream come true, I should study hard.
attributeFra bibliotekadverbial
.
12
What do I want to be?
What is my dream?
How is it to make my dream
come true? Easy or difficult?
easy
funny
necessary dull
.
7
Task 3: make sentences
Use the sentence structure “ To learn grammar is ….” to make sentences. Or we can use “It is … to learn grammar.”
XiongShulan
.
1
English Chocolate
Task 1: Read the following English
quotes!
.
2
Nothing in life is to be feared. It is only to
be understood.
Possible or impossible?
In order to make my dream
come true, what should I do?
How much time do I have to
make my dream come true? 1
year or 2y.ears?
13
Task 5: Strike while the iron is hot!
In order to make my dream come true, I should study hard.
attributeFra bibliotekadverbial
.
12
What do I want to be?
What is my dream?
How is it to make my dream
come true? Easy or difficult?
easy
funny
necessary dull
.
7
Task 3: make sentences
Use the sentence structure “ To learn grammar is ….” to make sentences. Or we can use “It is … to learn grammar.”
【高中英语语法】非谓语动词to do不定式课件(3个)
• 4.作定语 • a.Manager,do you have anything to be typed ? • b.As a typist ,do you have anything to type now ? • c.I am free now .Do you have anything to type ? • d.Please give me an apple to eat . • e.They will make some candles to give light. • f.Have you anything to send？（自己寄） • g.Have you anything to be sent?( 别人寄）
• 请翻译下面的句子：
a.The old man has a girl look after him.
（这位老人叫一个女孩照顾他）
b.The old man has a girl to look after him.
（这位老人有一个照顾他的女孩）
c.The old man has a girl to look after.
I’ve work with children before, so I know what ___ in my job. A. expecteBd B. to expect C. to be expecting D. expects
该题考查疑问词+不定式在句中做宾语的用法。 英语中有一些动词 后可以跟一个疑问词的不定 式做宾语，如：
3)名词是抽象名词，用不定式作定语，常见的有： ability,chance,idea,excuse， reply,belief,reason,attempt等。
a.He has the ability to read and write.
选修七Unit1语法-不定式todo[课件]
![选修七Unit1语法-不定式todo[课件]](https://img.taocdn.com/s3/m/20e085bbf18583d048645984.png)
She could do nothing but cry.
重点!
动词后面跟V-ing还是不定式,含义不相同,总的
来说,表示习惯的, 一般性的动作多跟V-ing,一
次性的具体的被动动作多跟不定式。
1) I like to go with you. 我想和你一块儿去。
2) I like reading.
我喜欢阅读。
3）He promised to help her. 他答应过要ng VCD. 我们喜欢看VCD。
1) remember, forget, regret后面跟V-ing 时, 表示过去的动作,后面跟不定式时, 不定式表示将来的动作。
I remember meeting him in the street. 我记得在街上见过他。
Grammar
动词不定式 动词不定式由“to+动词原形”构成，
可以在句中作主语、宾语、表语、定 语、状语、补足语等,但不能作谓语。 不定式可以有自己的逻辑主语,即for sb. to do sth. 。
动词不定式的形式：
（1）一般式：to do （2）进行式：to be doing （3）完成式：to have done （4）否定式是在不定式符号to的前面 加not 或never.
2._____(see) is _______ (believe). 3.Don’t forget _______(lock) the door. 4.Please let me _____(help )you. 5.There is nothing _____(worry) about.
6.He hurried to the school,only_______(find)
To make such a mistake is foolish of him. 2. 不定式作表语
重点!
动词后面跟V-ing还是不定式,含义不相同,总的
来说,表示习惯的, 一般性的动作多跟V-ing,一
次性的具体的被动动作多跟不定式。
1) I like to go with you. 我想和你一块儿去。
2) I like reading.
我喜欢阅读。
3）He promised to help her. 他答应过要ng VCD. 我们喜欢看VCD。
1) remember, forget, regret后面跟V-ing 时, 表示过去的动作,后面跟不定式时, 不定式表示将来的动作。
I remember meeting him in the street. 我记得在街上见过他。
Grammar
动词不定式 动词不定式由“to+动词原形”构成，
可以在句中作主语、宾语、表语、定 语、状语、补足语等,但不能作谓语。 不定式可以有自己的逻辑主语,即for sb. to do sth. 。
动词不定式的形式：
（1）一般式：to do （2）进行式：to be doing （3）完成式：to have done （4）否定式是在不定式符号to的前面 加not 或never.
2._____(see) is _______ (believe). 3.Don’t forget _______(lock) the door. 4.Please let me _____(help )you. 5.There is nothing _____(worry) about.
6.He hurried to the school,only_______(find)
To make such a mistake is foolish of him. 2. 不定式作表语
初中英语动词不定式课件市公开课一等奖省赛课微课金奖PPT课件
6. I am very glad _______ (meet) you here．
7. We saw them_______ (come) into the room just now．
8. What he said made me_____ (feel) sorry．
9. I am sorry．I forgot_____ (tell) you the news．
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定语
动词不定式做定语放在所修饰名词 、代词后面。
例: He is the first person to sail around the world.
I have a lot of work to do．
The doctor said he could do nothing to help the boy．
特殊情况: 假如动词不定式和前面所修饰词组成动宾关系, 且动词是不及
物动词, 切记不要忘记后面介词。 I have a small bedroom to live in．
初中英语动词不定式课件
Have you got some pens to write with？
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作状语
a.目标状语: 放在go, come, use, live, in order等词后面.如： I come to see you． He runs fast in order to get there in time．
真正宾语是后面动词不定式。
The man found it difficult to get to sleep．
I feel it easy to recite the text．
语法总复习-不定式to-do-用法归纳一(公开课课件)
• 6. Our teacher advises us________ (read) aloud
everyday.
to read
• 7. The cat watched the mouse________ (slide) into the house but did nothing. slide
第十二页，编辑于星期日：十二点 二十五分。
不定式
• （一）学习下面句子，归纳用法。 • 1. To do morning exercises is useful for our health.
• 2. To catch the 5:00 bus early in the morning is not a
good idea.
• 3. It’s important for us to learn English well. • 4. It is not a good idea to catch the 5：00 bus early in
your secret. • —But you know, letting out one's secret
means________one's feelings. • A．to let; to hurt B．letting; hurting • C．to let; hurting D．letting; to hurt
• 4 She was very busy and had no time
定语
to visit her friends.
• 5 He spoke loudly (so as / in order)
to be heard.
状语
归纳：to do 在句子中可做：主、宾、表、补、定、状
高考语法复习不定式的时态和语态公开课课件
动词不定式 to do
讲师：XX
不定式 To do
知识点一： 不定式有带to 的不定式与不带to的不定
式有两种。不定式表示动作或状态，因此有一般 式、进行式、完成式（to do 、to be doing 、to have done)三种时态形式和主动、被动(to be done 、 to have been done)两种语态形式
•
2.校庆在即，学校要求全体师生注重 礼仪， 热情待 客，让 从全国 各地回 母校参 加庆祝 活动的 校友感 到宾至 如归。
•
3. 近三十年来，中国社会的快速发展 ，以及 中国和 国际交 流的扩 大，西 方媒体 从敌视 到误读 ，逐渐 改变了 对华的 片面报 道
•
4．我们可通过河流触摸历史，把河流 和历史 抽象成 一种符 号，赋 予河流 更加丰 富和充 满变数 的内涵 。
Example: He could not tell whom to trust. 他不知道谁应该被相信
注：whom是疑问代词，此处的to trust 和whom 连用表示的是被动， 指“谁被相信”
exercise
1. It is very important for us ＿to＿st＿ud＿y(study) hard. 2. I’m very luckyt＿o＿be＿a＿warded(award) 3. He has only one book＿to＿r＿ea＿d(read） 4. English is easy＿t＿o ＿lea＿rn(learn) 5. I don’t know what＿t＿o ＿ea＿t (eat)
Example: it’s nice to be sitting here with you. （和你一起坐在这儿真好啊）
讲师：XX
不定式 To do
知识点一： 不定式有带to 的不定式与不带to的不定
式有两种。不定式表示动作或状态，因此有一般 式、进行式、完成式（to do 、to be doing 、to have done)三种时态形式和主动、被动(to be done 、 to have been done)两种语态形式
•
2.校庆在即，学校要求全体师生注重 礼仪， 热情待 客，让 从全国 各地回 母校参 加庆祝 活动的 校友感 到宾至 如归。
•
3. 近三十年来，中国社会的快速发展 ，以及 中国和 国际交 流的扩 大，西 方媒体 从敌视 到误读 ，逐渐 改变了 对华的 片面报 道
•
4．我们可通过河流触摸历史，把河流 和历史 抽象成 一种符 号，赋 予河流 更加丰 富和充 满变数 的内涵 。
Example: He could not tell whom to trust. 他不知道谁应该被相信
注：whom是疑问代词，此处的to trust 和whom 连用表示的是被动， 指“谁被相信”
exercise
1. It is very important for us ＿to＿st＿ud＿y(study) hard. 2. I’m very luckyt＿o＿be＿a＿warded(award) 3. He has only one book＿to＿r＿ea＿d(read） 4. English is easy＿t＿o ＿lea＿rn(learn) 5. I don’t know what＿t＿o ＿ea＿t (eat)
Example: it’s nice to be sitting here with you. （和你一起坐在这儿真好啊）
【资料】语法总复习-不定式to-do-用法归纳一(公开课课件)汇编
ask/beg, help, prepare, threaten, tend, claim, desire/long, apply, fail, hesitate。
• 2. 若不定式结构比较复杂，通常用 it 作形 式宾语，真正的主语放在句子的后面，该 用法常见的动词有think, find, make, believe, consider, suppose, feel等。
语法总复习-不定式to-do-用法 归纳一(公开课课件)
不定式
• （一）学习下面句子，归纳用法。
• 1. To do morning exercises is useful for our health.
• 2. To catch the 5:00 bus early in the morning is not a good idea.
• 3. I think it useful to learn a foreign language.
• 4. I feel it my duty to say that you are wrong.
• 归纳：
• 1. 不定式作宾语，常跟在某些动词后。不定式作宾语动词口诀
• 决心学会选计划，拒绝答应想假装；
• (补充) 接doing形式的动词及短语 • 1.动名词作宾语： • finish doing sth.完成做某事； enjoy doing sth. 喜欢做某事； • practice doing sth. 练习做某事；imagine doing,想象做某事； • avoid doing sth.避免做某事； consider doing sth.考虑做某事； • suggest doing sth.建议做某事；mind doing sth.介意做某事； • keep doing sth.持续做某事 • 2.固定短语： • feel like doing sth.喜欢做某事；be busy doing sth.忙于做某事； • be worth doing 值得做某事； have fun doing.做某事高兴 • spend … (in) doing sth.花费（时间、金钱）做某事； • have difficulties/trouble/problems（in）doing sth做某事有困难；
• 2. 若不定式结构比较复杂，通常用 it 作形 式宾语，真正的主语放在句子的后面，该 用法常见的动词有think, find, make, believe, consider, suppose, feel等。
语法总复习-不定式to-do-用法 归纳一(公开课课件)
不定式
• （一）学习下面句子，归纳用法。
• 1. To do morning exercises is useful for our health.
• 2. To catch the 5:00 bus early in the morning is not a good idea.
• 3. I think it useful to learn a foreign language.
• 4. I feel it my duty to say that you are wrong.
• 归纳：
• 1. 不定式作宾语，常跟在某些动词后。不定式作宾语动词口诀
• 决心学会选计划，拒绝答应想假装；
• (补充) 接doing形式的动词及短语 • 1.动名词作宾语： • finish doing sth.完成做某事； enjoy doing sth. 喜欢做某事； • practice doing sth. 练习做某事；imagine doing,想象做某事； • avoid doing sth.避免做某事； consider doing sth.考虑做某事； • suggest doing sth.建议做某事；mind doing sth.介意做某事； • keep doing sth.持续做某事 • 2.固定短语： • feel like doing sth.喜欢做某事；be busy doing sth.忙于做某事； • be worth doing 值得做某事； have fun doing.做某事高兴 • spend … (in) doing sth.花费（时间、金钱）做某事； • have difficulties/trouble/problems（in）doing sth做某事有困难；
to-do不定式公开课2
to the party.
2. We ‘ll attend the party to be held ___________next week.
3. I have a paper to ______at home. write
4. Do you have anything______? to say 5. I want a good pen___________. to write with
结果状语
1.Zhang chi hurried to Ren’s party, only to find it over. 2.I have got so plenty of food as to treat my friends. 3.You are too late to enjoy any.
动词 + 宾语 + do (不带 to
的不定式)
注：常用的动词是：感官动词see, hear, feel, watch, notice； 使役动词 have ,make,let.
宾补
▲(构成“V.+ Sb.+ to do”的形式)
允许要求教建议， 鼓励强迫禁劝说， 期盼原意想警告， 命令告诉就得到。
原因状语.
Consolidation(p20)
1 他回家去取钥匙
to get his key He went home _____
目的状语.
2 我说了什么话使你不高兴?
to make What have I said ______you happy? 结果状语
3 赢了这场足球赛,我们感到自豪
to have football match We are proud _____the won
to do 的用法ppt课件
3
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 important to make a plan for our study.
5
I have learned to drive the car. He promised to come but he hasn’t turn up yet. He pretended to be reading when his mother came into his room. The boys are longing to watch the World Cup.
A. getting
B. got
C. having got
D. to get
解析：动词不定式作目的状语，其余几个没 这功能。
33
4. What is the way Smith thought of ___D______ enough money to buy the new house.
A. getting
12
go on to do sth.继续做另一件事
go on doing sth.接着做同一件事
After a short rest, they went on doing the work. After finishing the homework, the students went out to play football.
20
（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。
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 important to make a plan for our study.
5
I have learned to drive the car. He promised to come but he hasn’t turn up yet. He pretended to be reading when his mother came into his room. The boys are longing to watch the World Cup.
A. getting
B. got
C. having got
D. to get
解析：动词不定式作目的状语，其余几个没 这功能。
33
4. What is the way Smith thought of ___D______ enough money to buy the new house.
A. getting
12
go on to do sth.继续做另一件事
go on doing sth.接着做同一件事
After a short rest, they went on doing the work. After finishing the homework, the students went out to play football.
20
（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。
动词不定式to do课件
4. 不定式在句中的作用
(1).主语 To save time is to lengthen life. It’s +形容词of (for) somebody to do. It’s nice of you to help me. It’s necessary for us to follow his advice.
3) I’m glad to see you .(原因) We’re proud to be young people of China.
(7)e truth, I fell asleep in the middle of her talk.
To begin with, I found it tiring.
●
动词不定式to do
1.概述 动词不定式由to加动词原形构成,在某 些情况下可以省略to ,相当于名词,形容 词和副词,在句中可以做主语,宾语,表语, 定语,补语,状语和独立成分.
2.形式: 主动形式 一般式 to do 进行式 to be doing 完成式 to have doing
(6).状语 1) He got up early to catch the first bus.(目的) so as to, in order to
2)He hurried to the station, only to find the train had gone. .(一般表意外的结果) He lifted a rock only to drop it on his own feet. He went abroad, never to return.
(4).to have been doing 表示动作在谓语动词之前就已经发生,并 且一直进行着 He is said to have been working in that factory for twelve years.
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to say (say) one thing to healthy children,
it would be this: having a disability does not mean your life is not satisfying. 10 ． Just accept them for who they are, and give them encouragement to live (live) as rich and full a life as you do.
• 练习 to be completd (complete) • 1. The airport _____________ next year will help promote tourism in this area. to do (do) • 2. Do you have anything ________ tonight?
• 学习下面句子，归纳用法。
• 1. They told him not to be late again. • 2. The parents don't allow their children to go out at night. • 3. She invited me to have dinner with her yesterday．
5 ． My ambition is to work (work) for a firm that develops computer software when I grow up. 6． Last year I invented a computer football game and a big company has decided
• 1. 目的状语：to do/ in order to do/ so as to do • 2. 原因状语: sb. + be +表示心理状态的形容词 (sorry, happy, glad, surprised, eager, angry, disappointed等)+ to do
to buy (buy) it from me.
To look (look) after my pets properly takes a lot of time but I 7．________
find it worthwhile.
8． I have to work hard to live (live) a normal life but it has been worth it. 9．If I had a chance
to do和doing作主语的区别
1. 在许多情况下，两者可以互换。 To see is to believe. = Seeing is believing. 眼见为实。 2. 不定式做主语常表示具体的某次动作。 3. 动名词做主语常表示泛指的、经常性的动作。 To be a singer is my dream. Walking is good for your health.
All you have to do is (to) finish the job quickly. What I want to do is (to) go to bed.
如果主语部分含有实义动词do, 用作表语 的不定式可省略to。
• • • • • • • •
学习下面句子，归纳用法。 1. The driver failed to see the other car in time. 2. He can't afford to buy the expensive car. 3. I think it useful to learn a foreign language. 4. I feel it my duty to say that you are wrong. 归纳三： 1. 不定式作宾语，常跟在某些动词后。 decide/determine, learn, choose, plan, refuse, promise, want/attempt, pretend, offer, manage, expect/wish/hope, agree, ask/beg, help, prepare, threaten, tend, claim, desire/long, apply, fail, hesitate
• 归纳五： • 不定式常放在名词或不定代词后面作后置定语。 • 1. 名词前有the first, the last, the only等词以及最高 级修饰时。 • 2. 抽象名词way, chance, ability, desire, determination, decision, plan等后面。 • 3. 用在have sth. to do句型中。
动词不定式的语法功能 Functions of Infinitive 1 主语 (subject) 2 表语 (predicative) 3 宾语 (object) 4 宾补 (object complement) 5 定语 (attribute) 6 状语句子，归纳用法。 • 1. To do morning exercises is useful for our health. • 2. It is useful for our health to do morning exercises. • 归纳一： • 不定式作主语，表示具体的某次动作。若不定式结 构比较复杂，常用it 作形式主语，真正的主语放在 句子的后面。
• 3. 一些动词既可跟动名词又可跟不定式作宾语， 但是两种情况下的语义不同。 • remember to do sth.记住要做某事 • remember doing sth.记得做过某事 • forget to do sth.忘记要做某事 • forget doing sth.忘记做过某事 • regret to do sth.对将要做的事抱歉 • regret doing sth.对发生过的事后悔 • try to do sth.设法……，试图…… • try doing sth.试试看，试一试 • mean to do sth.打算做…… • mean doing sth.意味着 • stop to do sth.停下来做另一件事 • stop doing sth.停止做某件事
• 2. 若不定式结构比较复杂，通常用 it 作形 式宾语，真正的宾语放在句子的后面，该 用法常见的动词有 think, find, make, believe, consider, suppose, feel等。
it 作形式宾语结构：
主语 +谓语 + it + adj./n.+ to do sth.
• • • •
学习下面句子，归纳用法。 1. His dream is to be a doctor. 2. Her ambition is to travel around the world. 3. My wish is to become a teacher．
• 归纳二： • 不定式作表语，表示将来的情况，说明主语的内 容。其主语常常是wish, dream, ambition, purpose, aim, idea, task, duty, plan等表示意向、 打算、计划的词。
• 学习下面句子，归纳用法。 • 1. To see distant people clearly, he has to wear glasses. • 2. Mrs. Li will be glad to look after the boy. • 3. I hurried to the store, only to find it closed. • 归纳六： • 不定式作状语：
归纳四：to do 作宾语补足语(2)
感官动词和使役动词 一感: feel 二听: listen to，hear 三让: let，make，have 四看: see，watch，notice, observe
这些词用于被动语态时，to要还原。
+ sb. do sth.
1. They saw the boy fall suddenly from the tree. The boy was seen to fall suddenly from the tree. 2. Mother made John wash the car for a week. John was made to wash the car for a week.
• 学习下面句子，归纳用法。
• 1. We have much homework to do tonight. • 2. Are you going to attend the meeting to be held next Monday? • 3. She was the first woman to win the gold medal in the Olympic Games. • 4. I have no chance to go abroad.
归纳四：to do 作宾语补足语(1) tell, ask, want, wish, expect, advise, allow, force, teach, persuade等 + sb. to do sth.
• • • •
1. I saw him enter the room. 2. He was seen to enter the room. 3. Don’t make the children do such heavy work. 4. The workers were made to work 10 hours a day.
• 练习： to go (go) and see a • 1. She had agreed ________ movie with him. • 2. The man downstairs found it difficult to get (get) to sleep. ___________ C • 3. —I'm sorry, but I didn't mean________out your secret. • —But you know, letting out one's secret means________one's feelings. • A．to let; to hurt B．letting; hurting • C．to let; hurting D．letting; to hurt
it would be this: having a disability does not mean your life is not satisfying. 10 ． Just accept them for who they are, and give them encouragement to live (live) as rich and full a life as you do.
• 练习 to be completd (complete) • 1. The airport _____________ next year will help promote tourism in this area. to do (do) • 2. Do you have anything ________ tonight?
• 学习下面句子，归纳用法。
• 1. They told him not to be late again. • 2. The parents don't allow their children to go out at night. • 3. She invited me to have dinner with her yesterday．
5 ． My ambition is to work (work) for a firm that develops computer software when I grow up. 6． Last year I invented a computer football game and a big company has decided
• 1. 目的状语：to do/ in order to do/ so as to do • 2. 原因状语: sb. + be +表示心理状态的形容词 (sorry, happy, glad, surprised, eager, angry, disappointed等)+ to do
to buy (buy) it from me.
To look (look) after my pets properly takes a lot of time but I 7．________
find it worthwhile.
8． I have to work hard to live (live) a normal life but it has been worth it. 9．If I had a chance
to do和doing作主语的区别
1. 在许多情况下，两者可以互换。 To see is to believe. = Seeing is believing. 眼见为实。 2. 不定式做主语常表示具体的某次动作。 3. 动名词做主语常表示泛指的、经常性的动作。 To be a singer is my dream. Walking is good for your health.
All you have to do is (to) finish the job quickly. What I want to do is (to) go to bed.
如果主语部分含有实义动词do, 用作表语 的不定式可省略to。
• • • • • • • •
学习下面句子，归纳用法。 1. The driver failed to see the other car in time. 2. He can't afford to buy the expensive car. 3. I think it useful to learn a foreign language. 4. I feel it my duty to say that you are wrong. 归纳三： 1. 不定式作宾语，常跟在某些动词后。 decide/determine, learn, choose, plan, refuse, promise, want/attempt, pretend, offer, manage, expect/wish/hope, agree, ask/beg, help, prepare, threaten, tend, claim, desire/long, apply, fail, hesitate
• 归纳五： • 不定式常放在名词或不定代词后面作后置定语。 • 1. 名词前有the first, the last, the only等词以及最高 级修饰时。 • 2. 抽象名词way, chance, ability, desire, determination, decision, plan等后面。 • 3. 用在have sth. to do句型中。
动词不定式的语法功能 Functions of Infinitive 1 主语 (subject) 2 表语 (predicative) 3 宾语 (object) 4 宾补 (object complement) 5 定语 (attribute) 6 状语句子，归纳用法。 • 1. To do morning exercises is useful for our health. • 2. It is useful for our health to do morning exercises. • 归纳一： • 不定式作主语，表示具体的某次动作。若不定式结 构比较复杂，常用it 作形式主语，真正的主语放在 句子的后面。
• 3. 一些动词既可跟动名词又可跟不定式作宾语， 但是两种情况下的语义不同。 • remember to do sth.记住要做某事 • remember doing sth.记得做过某事 • forget to do sth.忘记要做某事 • forget doing sth.忘记做过某事 • regret to do sth.对将要做的事抱歉 • regret doing sth.对发生过的事后悔 • try to do sth.设法……，试图…… • try doing sth.试试看，试一试 • mean to do sth.打算做…… • mean doing sth.意味着 • stop to do sth.停下来做另一件事 • stop doing sth.停止做某件事
• 2. 若不定式结构比较复杂，通常用 it 作形 式宾语，真正的宾语放在句子的后面，该 用法常见的动词有 think, find, make, believe, consider, suppose, feel等。
it 作形式宾语结构：
主语 +谓语 + it + adj./n.+ to do sth.
• • • •
学习下面句子，归纳用法。 1. His dream is to be a doctor. 2. Her ambition is to travel around the world. 3. My wish is to become a teacher．
• 归纳二： • 不定式作表语，表示将来的情况，说明主语的内 容。其主语常常是wish, dream, ambition, purpose, aim, idea, task, duty, plan等表示意向、 打算、计划的词。
• 学习下面句子，归纳用法。 • 1. To see distant people clearly, he has to wear glasses. • 2. Mrs. Li will be glad to look after the boy. • 3. I hurried to the store, only to find it closed. • 归纳六： • 不定式作状语：
归纳四：to do 作宾语补足语(2)
感官动词和使役动词 一感: feel 二听: listen to，hear 三让: let，make，have 四看: see，watch，notice, observe
这些词用于被动语态时，to要还原。
+ sb. do sth.
1. They saw the boy fall suddenly from the tree. The boy was seen to fall suddenly from the tree. 2. Mother made John wash the car for a week. John was made to wash the car for a week.
• 学习下面句子，归纳用法。
• 1. We have much homework to do tonight. • 2. Are you going to attend the meeting to be held next Monday? • 3. She was the first woman to win the gold medal in the Olympic Games. • 4. I have no chance to go abroad.
归纳四：to do 作宾语补足语(1) tell, ask, want, wish, expect, advise, allow, force, teach, persuade等 + sb. to do sth.
• • • •
1. I saw him enter the room. 2. He was seen to enter the room. 3. Don’t make the children do such heavy work. 4. The workers were made to work 10 hours a day.
• 练习： to go (go) and see a • 1. She had agreed ________ movie with him. • 2. The man downstairs found it difficult to get (get) to sleep. ___________ C • 3. —I'm sorry, but I didn't mean________out your secret. • —But you know, letting out one's secret means________one's feelings. • A．to let; to hurt B．letting; hurting • C．to let; hurting D．letting; to hurt