Unit 3 Sea Exploration Review of the infinitive课件（共24张） -2025-2026学年人教版（2019）选择性必修第四册
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| 名称 | Unit 3 Sea Exploration Review of the infinitive课件（共24张） -2025-2026学年人教版（2019）选择性必修第四册 |  | |
| 格式 | pptx | ||
| 文件大小 | 32.6MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-06-20 23:06:38 | ||
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(共24张PPT)
新人教版选择性必修四 Unit 3
Review useful structures
Review of the infinitive
动
词
谓语动词
非谓语动词
连系动词am is are was were sound seem get turn
实义动词/行为动词(vt./vi)
run sing learn say write
助动词
do does did have has will
情态动词
can may must need dare
不定式to do
现在分词V-ing
过去分词V-ed
Contents:
1. 不定式用法回顾
2. 巩固练习
不定式用法回顾
Part 01
不定式的形式
动词不定式 主动 被动
一般式 to do to be done 表示动作发生在谓语动词所表示的动作之后
完成式 to have done to have been done 表示动作发生在谓语动词所表示的动作之前
进行式 to be doing / 表示动作与谓语动词所表示的动作同时发生
完成进行式 to have been doing / 表示动作在谓语动词所表示的动作之前一直进行
动词不定式可以在句中充当什么成分？
As the subject (S) 主语
As the predicative (P) 表语
As the object (O) 宾语
As the object complement (OC) 宾补
As the attributive (Attr) 定语
As the adverbial (Ad) 状语
不定式作主语
主语是句子的主体，是句子所要说明的人或事物，表示
句子描述的是谁或什么。
To see is to believe.
百闻不如一见
To talk with him is a pleasure.
和他谈论是一件乐事。
常考句型
It’s time to do sth.是时候做某事
It take/took sb. +时间 to do sth. 花费某人多长时间做某事
It +be + adj. + for sb. to do sth. 做某事对某人来说是怎样的
It +be + adj. + of sb. to do sth做某事体现了某人的品质
★for: adj.多为描述不定式行为的特征,特点
（important/ necessary / interesting 等.）
★of : adj. 多为描述主语的品质
（kind / nice / friendly / wise / foolish 等.）
Practice:
1.It is important ______us to live a low-carbon life.
2.It was generous ______him to contribute so much .
for
of
1. 带wh-（特殊疑问词）+to do短语作主语(谓语用单数)
When and where ___________(start) the programs remains unknown.
2. It take/took sb. +时间 to do sth. 花费某人多长时间做某事
It took him a long time ___________(acquire) the skills he needed to become a good dancer.
to start
to acquire
(1).位于系动词之后
不定式作表语
be动词，状态“是” be（am, is, are, was, were)
持续类，“继续或保持” keep, remain, stay, lie
表像类，“看起来像” seem, appear, look
感官类， look,feel, smell, sound, taste
变化类，“变成......” become, grow, turn, fall, get, go, come, run
终止类， prove“证明是，结果是”
1. My idea is___________(climb) the mountain from the north.
2. My suggestion is _____________(start) work at once.
to climb
to start
不定式作宾语
动词+it+宾补+to do
此时，it是形式宾语，真正的宾语是后面的to do不定式
常用动词： make, find, feel, think, believe, consider
例1.我觉得回答这个问题很难
I think it hard _________（answer) the question.
例2.我发现要吃完这顿饭是一个负担
I find it a burden _________（finish) the meal
to answer
to finish
当名词被序数词、形容词最高级，以及the only, the last, the next
等词修饰时，常用不定式作定语。
e.g. Rita was the only person to complain.
He was the first man to fly across the Atlantic.
Tom is the best man to do the job.
eg. Do you have anything to explain
There is nothing to worry about.
I want to get something to drink.
当修饰的词为something, nothing, anything等不定代词时。
不定式作定语
（1）作目的状语相当于 in order和so as to，但so as to不能放在句首。
To catch the bus, I got up at six this morning．
（2）作原因状语，用于“ be + 形容词 + to do”结构中，形容词多是
happy, glad, excited, disappointed, shocked等表示喜怒哀乐的形容词
eg. I am so excited to be here!
He is glad to be invited to the meeting.
(3) 作结果状语,用于“only + to do”结构，未曾预料到的或令人不快的结果。
eg. He arrived at the train station, only to find the train had already left.
George returned after the war, only to be told that his wife had left him
不定式作状语
1. Activities there range from whale watching to hiking (远足) and accommodations aim _________ (have) a low impact on the natural environment.
（2021年全国乙卷）
to have
2. Mary's sister, Frances Todd Wallace, often came over _________ (plant) flowers in the front yard.
（2021年6月浙江卷）
to plant
1. It is possible (walk) or bike the entire 14 kilometers.
(2021 全国甲)
2. Much of this increase can be due to climate change. The findings show a critical need (invest) in disaster prevention. (2021 北京)
3. Mary became a baker at age 14, because her grandfather paid the local baker ________ (teach) her all the skills. (2021 天津)
to walk
to invest
to teach
Fill in the blanks with the correct form.
单句语法填空
①In 1931，Addams became the first American woman to win （win） the Nobel Peace Prize.
②The best way to strengthen （strengthen） willpower意志力，毅力 is to make it into a habit.
③We must make the Earth a better place to live （live） in.
to win
to strengthen
to live
巩固练习
Part 02
Read the beginning of The Little Mermaid and use the proper forms of the verbs in brackets to fill in the blanks.
Far out in the ocean, where the water is as clear as glass, lives the Sea King. The ocean is too deep _____________ (measure). We may imagine there is nothing except yellow sand under the sea, but actually it is not rare _____________ (see) the most unique flowers and plants ________________ (dance) in the fast-moving water. In the deepest spot of all stands the Sea King's castle, which has walls of coral and a roof _________ (form) of beautiful shells.
to measure
to see
dancing
formed
The mother of the king, a wise woman who is proud _______________ (be) born into the royal family, takes care of his six daughters. Among the six sea-princesses, the youngest is the prettiest. Although she has delicate skin like a rose-leaf and eyes as blue as the deepest sea, she has no feet but a fish tail just like her sisters. The most common way for the princesses ___________ (play) all day long is ____________________ (swim) in the halls of the castle or among the flowers growing out of the walls, feeding and touching the fish _____________ (swim) up to their hands through the windows. They seem_______________(not worry) about anything, except for the youngest, who …
to have been
to play
swimming/to swim
swimming
not to worry
Complete the sentences.
1.__________________________________________________, you'd better keep this card at hand.
为了更容易与我们取得联系, 你最好把这张卡片放在手边。
2. I remember I told my mom more than once that I hoped _________________________________________________.
我记得我不止一次告诉我妈妈我希望将来追求演艺事业。
3. The old man sits in front of the television every evening, happy ________________________________________________.
老人每晚坐在电视机前, 高兴地看电视上碰巧播放的任何内容。
To make it easier to get in touch with us/
To get in touch with us more easily
to pursue an acting career in the future
to watch anything that happened to be on
4. The airport __________________________________ will help promote tourism in this area.
明年竣工的机场将会帮助推动该地区的旅游业发展。
5. He has a heart trouble and _________________________.
他有心脏病, 医生发现很难治疗。
6. The man opened his eyes, ___________________________________________________.
那人睁开眼睛, 却发现房间里只剩下他一个人。
only to find himself left alone in the room
the doctor finds it difficult to treat
to be completed next year
Homework：
1. 导学案section II
Thanks For Your Listening
新人教版选择性必修四 Unit 3
Review useful structures
Review of the infinitive
动
词
谓语动词
非谓语动词
连系动词am is are was were sound seem get turn
实义动词/行为动词(vt./vi)
run sing learn say write
助动词
do does did have has will
情态动词
can may must need dare
不定式to do
现在分词V-ing
过去分词V-ed
Contents:
1. 不定式用法回顾
2. 巩固练习
不定式用法回顾
Part 01
不定式的形式
动词不定式 主动 被动
一般式 to do to be done 表示动作发生在谓语动词所表示的动作之后
完成式 to have done to have been done 表示动作发生在谓语动词所表示的动作之前
进行式 to be doing / 表示动作与谓语动词所表示的动作同时发生
完成进行式 to have been doing / 表示动作在谓语动词所表示的动作之前一直进行
动词不定式可以在句中充当什么成分？
As the subject (S) 主语
As the predicative (P) 表语
As the object (O) 宾语
As the object complement (OC) 宾补
As the attributive (Attr) 定语
As the adverbial (Ad) 状语
不定式作主语
主语是句子的主体，是句子所要说明的人或事物，表示
句子描述的是谁或什么。
To see is to believe.
百闻不如一见
To talk with him is a pleasure.
和他谈论是一件乐事。
常考句型
It’s time to do sth.是时候做某事
It take/took sb. +时间 to do sth. 花费某人多长时间做某事
It +be + adj. + for sb. to do sth. 做某事对某人来说是怎样的
It +be + adj. + of sb. to do sth做某事体现了某人的品质
★for: adj.多为描述不定式行为的特征,特点
（important/ necessary / interesting 等.）
★of : adj. 多为描述主语的品质
（kind / nice / friendly / wise / foolish 等.）
Practice:
1.It is important ______us to live a low-carbon life.
2.It was generous ______him to contribute so much .
for
of
1. 带wh-（特殊疑问词）+to do短语作主语(谓语用单数)
When and where ___________(start) the programs remains unknown.
2. It take/took sb. +时间 to do sth. 花费某人多长时间做某事
It took him a long time ___________(acquire) the skills he needed to become a good dancer.
to start
to acquire
(1).位于系动词之后
不定式作表语
be动词，状态“是” be（am, is, are, was, were)
持续类，“继续或保持” keep, remain, stay, lie
表像类，“看起来像” seem, appear, look
感官类， look,feel, smell, sound, taste
变化类，“变成......” become, grow, turn, fall, get, go, come, run
终止类， prove“证明是，结果是”
1. My idea is___________(climb) the mountain from the north.
2. My suggestion is _____________(start) work at once.
to climb
to start
不定式作宾语
动词+it+宾补+to do
此时，it是形式宾语，真正的宾语是后面的to do不定式
常用动词： make, find, feel, think, believe, consider
例1.我觉得回答这个问题很难
I think it hard _________（answer) the question.
例2.我发现要吃完这顿饭是一个负担
I find it a burden _________（finish) the meal
to answer
to finish
当名词被序数词、形容词最高级，以及the only, the last, the next
等词修饰时，常用不定式作定语。
e.g. Rita was the only person to complain.
He was the first man to fly across the Atlantic.
Tom is the best man to do the job.
eg. Do you have anything to explain
There is nothing to worry about.
I want to get something to drink.
当修饰的词为something, nothing, anything等不定代词时。
不定式作定语
（1）作目的状语相当于 in order和so as to，但so as to不能放在句首。
To catch the bus, I got up at six this morning．
（2）作原因状语，用于“ be + 形容词 + to do”结构中，形容词多是
happy, glad, excited, disappointed, shocked等表示喜怒哀乐的形容词
eg. I am so excited to be here!
He is glad to be invited to the meeting.
(3) 作结果状语,用于“only + to do”结构，未曾预料到的或令人不快的结果。
eg. He arrived at the train station, only to find the train had already left.
George returned after the war, only to be told that his wife had left him
不定式作状语
1. Activities there range from whale watching to hiking (远足) and accommodations aim _________ (have) a low impact on the natural environment.
（2021年全国乙卷）
to have
2. Mary's sister, Frances Todd Wallace, often came over _________ (plant) flowers in the front yard.
（2021年6月浙江卷）
to plant
1. It is possible (walk) or bike the entire 14 kilometers.
(2021 全国甲)
2. Much of this increase can be due to climate change. The findings show a critical need (invest) in disaster prevention. (2021 北京)
3. Mary became a baker at age 14, because her grandfather paid the local baker ________ (teach) her all the skills. (2021 天津)
to walk
to invest
to teach
Fill in the blanks with the correct form.
单句语法填空
①In 1931，Addams became the first American woman to win （win） the Nobel Peace Prize.
②The best way to strengthen （strengthen） willpower意志力，毅力 is to make it into a habit.
③We must make the Earth a better place to live （live） in.
to win
to strengthen
to live
巩固练习
Part 02
Read the beginning of The Little Mermaid and use the proper forms of the verbs in brackets to fill in the blanks.
Far out in the ocean, where the water is as clear as glass, lives the Sea King. The ocean is too deep _____________ (measure). We may imagine there is nothing except yellow sand under the sea, but actually it is not rare _____________ (see) the most unique flowers and plants ________________ (dance) in the fast-moving water. In the deepest spot of all stands the Sea King's castle, which has walls of coral and a roof _________ (form) of beautiful shells.
to measure
to see
dancing
formed
The mother of the king, a wise woman who is proud _______________ (be) born into the royal family, takes care of his six daughters. Among the six sea-princesses, the youngest is the prettiest. Although she has delicate skin like a rose-leaf and eyes as blue as the deepest sea, she has no feet but a fish tail just like her sisters. The most common way for the princesses ___________ (play) all day long is ____________________ (swim) in the halls of the castle or among the flowers growing out of the walls, feeding and touching the fish _____________ (swim) up to their hands through the windows. They seem_______________(not worry) about anything, except for the youngest, who …
to have been
to play
swimming/to swim
swimming
not to worry
Complete the sentences.
1.__________________________________________________, you'd better keep this card at hand.
为了更容易与我们取得联系, 你最好把这张卡片放在手边。
2. I remember I told my mom more than once that I hoped _________________________________________________.
我记得我不止一次告诉我妈妈我希望将来追求演艺事业。
3. The old man sits in front of the television every evening, happy ________________________________________________.
老人每晚坐在电视机前, 高兴地看电视上碰巧播放的任何内容。
To make it easier to get in touch with us/
To get in touch with us more easily
to pursue an acting career in the future
to watch anything that happened to be on
4. The airport __________________________________ will help promote tourism in this area.
明年竣工的机场将会帮助推动该地区的旅游业发展。
5. He has a heart trouble and _________________________.
他有心脏病, 医生发现很难治疗。
6. The man opened his eyes, ___________________________________________________.
那人睁开眼睛, 却发现房间里只剩下他一个人。
only to find himself left alone in the room
the doctor finds it difficult to treat
to be completed next year
Homework：
1. 导学案section II
Thanks For Your Listening