不定式课件
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➢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
** I saw／watched him drive off． ** I heard him lock the door
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
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
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.
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）
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.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。
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．
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.
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 doቤተ መጻሕፍቲ ባይዱnext.
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
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 …
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)
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
** I saw／watched him drive off． ** I heard him lock the door
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
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
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.
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）
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.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。
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．
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.
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 doቤተ መጻሕፍቲ ባይዱnext.
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
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 …
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)