不定式课件
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不定式-PPT课件
about. 10. You shouldn’t allow students __t_o_p_l_a_y___(play) games near
the classroom, for it’s too noisy.
11. I had meant ___t_o_c_a_l_l _(call) on you, but I was so busy.
7. The boy want to ride his bicycle in the street, but his mother told him _n_o_t_to__d_o__ (do).
8. I’ll do whatever I can _to__im_p_r_o_v_e_ my English. 9. My grandmother seems to have a lot t_o_w__o_rr_y_a_b_o_u_t_(worry)
12. To know what is good and ___t_o_d_o__(do) what is right are two
different things. 13. You must have taken a lot of trouble ___t_o_fin_d__(find) this
18. Paul doesn’t have to be made ____to__le_a_r_n___(learn) . He always works hard.
不定式
表将来
表目的
表某一次具体的动作
不定式的用法
1.学英语对于我们来说不是很难。
It is not difficult for us to learn English./ To learn English is not difficult for us.
the classroom, for it’s too noisy.
11. I had meant ___t_o_c_a_l_l _(call) on you, but I was so busy.
7. The boy want to ride his bicycle in the street, but his mother told him _n_o_t_to__d_o__ (do).
8. I’ll do whatever I can _to__im_p_r_o_v_e_ my English. 9. My grandmother seems to have a lot t_o_w__o_rr_y_a_b_o_u_t_(worry)
12. To know what is good and ___t_o_d_o__(do) what is right are two
different things. 13. You must have taken a lot of trouble ___t_o_fin_d__(find) this
18. Paul doesn’t have to be made ____to__le_a_r_n___(learn) . He always works hard.
不定式
表将来
表目的
表某一次具体的动作
不定式的用法
1.学英语对于我们来说不是很难。
It is not difficult for us to learn English./ To learn English is not difficult for us.
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》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
动词不定式(47张PPT)初中英语专项复习课件
说明 作主语用的不定式，常常用it作形式主语， 而把不定式放在后面。
My work is to clean the room everyday.=To clean 多数情况下，不定式作表语，可转换作为
the room every day is my work.
主语。
—What sports does he like to play?—He likes to 只能做某些动词的宾语，一般不作介词的
prove/
tend/
offer/
expect等
款适合你
夯基·必备基础知识
① Although he pretended to surrender to the enemy , he failed to win their trust.
② I hope to finish it tomorrow .
3.see sth done 看见某事被做 重点看宾语和补语之间的逻辑关系
夯基·必备基础知识 5. 作补语
① I heard her sing an English song just now.(主动，完成)
刚才我听见她唱了一首英文歌。
② I heard her singing an English song when I passed by her room yesterday.(主
夯基·必备基础知识 3. 作表语
注意：下列情况下不定式作表语通常省略to：
All you need to do now is complete the form. 你现在要做的是把这张表填好。
What I want to do most in senior high school is improve my English.
英语语法-动词不定式PPT课件
-Yes. I think that’s 2 years ago.
√ a. sfeoerget/br.esmeeeimngberct.otodoseseth.
d. saw
forget/remember doing sth.
stop/go on to do sth
stop/go on doing sth
宾语
4. People eat to live, but not live to eat.
5. I have a lot to tell you.
6.
定语 It’s not right to be always thinking of oneself.
7. We often see him play football.
(目的) (目的)
（结果）
第5页/共22页
4.用作主语（这时可将其用形式主语it来替换） 1.To be an actress is my dream. It is my dream to be an actress. 2. To go abroad is his dream. It is his dream to go abroad. 3. To say is easy, to do is difficult. It is easy to say, it is difficult to do.
todo表示目的doctordidwhathecoulddo作定语如是不及物动词构成不定式短语作定语其后需接介词第21页共22页感谢您的观看
动词不定式的基本形式是“to+动词原形 “，有时可以不带to.
动词不定式没有人称和数的变化，在句子中 不能作谓语。在句中可以作主语、表语、宾 语、宾语补足语、定语和状语。
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.
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．
《动词不定式》PPT课件
Do you have anything to say?
B) 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。
I have got a letter to write． 他需要一个房间居住.
He needs a room to live in．
但是，不定式所修饰的名词如果是time， place或way，不定式后面的介词习惯上 要省去。 例如： He had no place to live． 他没地方住。
注②：当作定语的不定式所修饰的名 词或代词是不定式动作的承受者时， 不定式既可以用主动语态，也可用被 动语态，但其意义有所不同。 试比较：
The room is big enough to hold us． 这间屋子够大能盛得下我们。
(6) 作表语
My job is to help the patient. 我的工作是帮助病人。
(7)作独立成分 To tell the truth，I don't agree
with you． 说实话，我不同意你的观点。
语法七
动词不定式
不定式的构成:
to+动词原形 ，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。
一.不定式的句法功能
不定式可作哪些成分?
主语、宾语、宾语补足语, 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“of/for+名词 或代词宾格”构成。
2.)但如果强调句中的受事者时， 亦可用不定式被动句。例如：
The handwriting is very difficult to be read． 这箱子太重举不起来。
B) 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。
I have got a letter to write． 他需要一个房间居住.
He needs a room to live in．
但是，不定式所修饰的名词如果是time， place或way，不定式后面的介词习惯上 要省去。 例如： He had no place to live． 他没地方住。
注②：当作定语的不定式所修饰的名 词或代词是不定式动作的承受者时， 不定式既可以用主动语态，也可用被 动语态，但其意义有所不同。 试比较：
The room is big enough to hold us． 这间屋子够大能盛得下我们。
(6) 作表语
My job is to help the patient. 我的工作是帮助病人。
(7)作独立成分 To tell the truth，I don't agree
with you． 说实话，我不同意你的观点。
语法七
动词不定式
不定式的构成:
to+动词原形 ，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。
一.不定式的句法功能
不定式可作哪些成分?
主语、宾语、宾语补足语, 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“of/for+名词 或代词宾格”构成。
2.)但如果强调句中的受事者时， 亦可用不定式被动句。例如：
The handwriting is very difficult to be read． 这箱子太重举不起来。
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e.g.We went to see him only to find him out. 结果状语
e.g.We are glad /surprise to see you. 原因状语
在too…to do …;adj./adv.+enough to do…结构中 作结果状语；在in order to ;so as to 结构中作目的 状语；在be + adj. +to do …中/表喜、怒、哀、乐 词之后作原因或方式状语。
2. My dream is to go to Beijing University. ( predicative)
3. Western brides choose to wear white on
their wedding days.
(object )
4. To attract more customers, they paint
不带to的不定式作宾补！！
⑤作定语（位于名词或代词之后）：
e.g. Do you have anything to say? Have you got the permission to use the
computer ?
⑥作状语（目的、结果、原因等）：
e.g.We eat to live; we don’t live to eat. （目的）
e.g. He is old enough to go to school. He got up early so as to catch the bus.
I’m sorry to hear that.
1. To select the right colors is important for business. ( subject)
2. He is thought to be the best player. = It is thought that he is the best player.
3. She is believed to have landed in America． = It is believed that she has landed …
e.g. What you should is to leave here at once. The problem is how to do it.
③作宾语： e.g. I want to buy something for him .
I don’t know what to do next.
④作宾语补足语： e.g.He asked me to wait for him for a while. My father lets me go out alone at night.
(formal object)
6. Never hesitate to help others. (object)
7. We have been told when and where to have the physical examination. (object)
8. It is necessary for young people
动词不定式
What are the three non-predicates in English?
➢The Infinitive（不定式） • to do / to be done • to be doing • to have done/ to have been done
➢The Participle（分词） • doing / being done • having done/ having been done • done
their restaurant red.
( adverbial )
5. I have no way to help him out of
trouble.
(attribute)
5. I don’t think it difficult to improve our
English in a short time.
➢The Gerund（动名词） • doing /being done • having done/having been done
语法： 动词不定式在句子中的作用 ①作主语： e.g.To say is one thing;to do is another. It’s important to do it right away. ②作表语：
不带to的不定式
a. feel， hear， see, watch, listen to , look at, observe, notice
**d him lock the door
2. He survived the air crash, only to die in the desert．
3. I ran to the station, only to see the train was out of the station.
4. He enjoyed laughing at others ,only to find himself laughed at.
nowadays to master at least one
foreign language.
(formal subject)
Special patterns: 1. He is said to have already finished his task.
= It is said that he has already finished …
4. You seem to have seen the film. = It seems that you have seen the film.
only to do -----
1. He hurried back to his house, only to find that it was empty．
e.g.We are glad /surprise to see you. 原因状语
在too…to do …;adj./adv.+enough to do…结构中 作结果状语；在in order to ;so as to 结构中作目的 状语；在be + adj. +to do …中/表喜、怒、哀、乐 词之后作原因或方式状语。
2. My dream is to go to Beijing University. ( predicative)
3. Western brides choose to wear white on
their wedding days.
(object )
4. To attract more customers, they paint
不带to的不定式作宾补！！
⑤作定语（位于名词或代词之后）：
e.g. Do you have anything to say? Have you got the permission to use the
computer ?
⑥作状语（目的、结果、原因等）：
e.g.We eat to live; we don’t live to eat. （目的）
e.g. He is old enough to go to school. He got up early so as to catch the bus.
I’m sorry to hear that.
1. To select the right colors is important for business. ( subject)
2. He is thought to be the best player. = It is thought that he is the best player.
3. She is believed to have landed in America． = It is believed that she has landed …
e.g. What you should is to leave here at once. The problem is how to do it.
③作宾语： e.g. I want to buy something for him .
I don’t know what to do next.
④作宾语补足语： e.g.He asked me to wait for him for a while. My father lets me go out alone at night.
(formal object)
6. Never hesitate to help others. (object)
7. We have been told when and where to have the physical examination. (object)
8. It is necessary for young people
动词不定式
What are the three non-predicates in English?
➢The Infinitive（不定式） • to do / to be done • to be doing • to have done/ to have been done
➢The Participle（分词） • doing / being done • having done/ having been done • done
their restaurant red.
( adverbial )
5. I have no way to help him out of
trouble.
(attribute)
5. I don’t think it difficult to improve our
English in a short time.
➢The Gerund（动名词） • doing /being done • having done/having been done
语法： 动词不定式在句子中的作用 ①作主语： e.g.To say is one thing;to do is another. It’s important to do it right away. ②作表语：
不带to的不定式
a. feel， hear， see, watch, listen to , look at, observe, notice
**d him lock the door
2. He survived the air crash, only to die in the desert．
3. I ran to the station, only to see the train was out of the station.
4. He enjoyed laughing at others ,only to find himself laughed at.
nowadays to master at least one
foreign language.
(formal subject)
Special patterns: 1. He is said to have already finished his task.
= It is said that he has already finished …
4. You seem to have seen the film. = It seems that you have seen the film.
only to do -----
1. He hurried back to his house, only to find that it was empty．