人教版（2019）选修三Unit 1 Art Discovering Useful Structures 课件(共16张PPT)
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| 名称 | 人教版（2019）选修三Unit 1 Art Discovering Useful Structures 课件(共16张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 580.3KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-04-08 19:27:28 | ||
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(共16张PPT)
Discovering Useful Structures—Infinitives(2) as the predicative
Unit 1
Art
语境 感悟
阅读以下短文，感知加颜色部分，并完成下面的练习
Not that long ago，my first thought at mealtimes was to eat at a restaurant.I was to eagerly try new restaurants.To eat out was also a social activity，allowing me to enhance the relationship with my friends.I often ate out until last month，when I came across a cooking app.A variety of recipes in the app are to be chosen.They are uploaded by users，and offer detailed instructions so that others can follow them step by step.Most of the recipes include photos or videos，which are very useful for beginners.When I picked a popular recipe and gave it a try，I discovered that it was not that difficult to make a simple and tasty dish.
In the last few weeks，I’ve thrown myself into home cooking，from boiling noodles in the pot to frying steak in the pan.I hardly eat out any more.Not only is cooking at home cheaper，but I can cook exactly what I want.It’s healthier too.No wonder people say nothing beats home cooking!
Now I am good at cooking a couple of dishes.My plan is to invite my friends over at the weekend to show them my new-found skills.I hope that they will like my cooking!
【自主发现】
在以上加颜色句子中，动词不定式都是作 ，表示具体的事情或将要发生的事情。
表语
返 回
语法 精讲
动词不定式是非谓语动词的一种，它没有人称和数的变化。动词不定式具有动词特征，可与其逻辑主语、宾语、状语等一起构成不定式短语。动词不定式在句中位置灵活、句法功能丰富，可充当谓语以外的几乎所有句子成分。本单元主要复习动词不定式作表语的用法。
一、基本用法
动词不定式可以放在be，become，sound，taste等系动词后面作表语。具体用法如下：
1.表示目的。
The next step is to make sure that you know exactly what is required.
下一步是确保你确切知道需要什么。
The purpose of education is to develop a good personality of children.
教育的目的是培养儿童良好的品格。
2.表示事态发展的结果、预期的结果、不幸的命运或预言。
That experience was to change his whole life.
那次经历会改变他的整个生活。
You must tell me about it，if we are to remain friends.
如果我们还想继续做朋友的话，你就必须告诉我那件事。
3.用于第一人称疑问句，表示征求意见。
What am I to say if they turn down my investment？
如果他们拒绝我的投资，我该怎么说？
4.用于被动语态，相当于can/could，should，ought to，must，具有情态意义。
You are to be rewarded.你应该受到奖励。(should)
It’s nowhere to be found.哪儿也找不到它。(can’t be)
These books are not to be sold.这些书不应该被卖掉。(ought not to be)
5.表示“同意、安排、命令、决定、劝告、意愿、禁止”等。
It has been announced that they are to marry next week.
他们已宣布下星期结婚。(安排)
You must be patient and persistent if you are to succeed.
想要成功，你就必须有耐心和毅力。(愿望)
6.不定式作表语，可用主动形式表示被动意义。
Your client is to blame for the loss of so much money.
损失这么多钱应该怪你的客户。
二、动词不定式与动词-ing形式、动词-ed形式作表语的区别
动词不定式表示某一次具体的、特定的或有待实现的动作，而动词-ing形式表示通常的情况。表示事物的特征或性质时，表语用动词-ing形式；表示人的内心感受时，表语用动词-ed形式。
My dream is to be admitted to Peking University.
我的梦想是考入北京大学。
My first job was working in the City Library when I was 16 years old.
我16岁时，第一份工作是在市图书馆工作。
We are satisfied with our present job.我们对现在的工作很满意。
Please describe a dog that is frightening.请描述一只令人害怕的狗。
三、主语带do，表语省略to的情况
当主语部分有动词do的某种形式时，用作表语的不定式可以省略to。
All you do now is (to) complete the form.
你现在要做的是把这张表填好。
What I’ll do is (to) tell her the truth.
我将要做的就是告诉她真相。
返 回
达标检测
My aim in life is 1. (protect) the environment for future generations.My wish is 2. (become) an environmental consultant after graduation.Many people think that pollution cannot 3._____________
(stop) if we want the country 4. (develop).But that is not true. What I suggest is 5. (cut) back on dangerous and dirty waste from factories.Many times，factories which produce a large quantity of goods are 6. (blame) for much pollution in the environment.Besides，what people should pay attention to is 7. (purchase) products which can be recycled.
语法填空
to protect
to become
be stopped
to develop
to cut
to blame
to purchase
There is no doubt that we have a problem with population as well.The number of people in the world 8. (keep) growing，and we 9.______
(produce) more rubbish and using up more raw materials. What if they run out I am confident that if we are all willing 10._________
(work) together，we can overcome these challenges and keep the Earth clean and healthy.
返 回
keeps
are
producing
to work
Discovering Useful Structures—Infinitives(2) as the predicative
Unit 1
Art
语境 感悟
阅读以下短文，感知加颜色部分，并完成下面的练习
Not that long ago，my first thought at mealtimes was to eat at a restaurant.I was to eagerly try new restaurants.To eat out was also a social activity，allowing me to enhance the relationship with my friends.I often ate out until last month，when I came across a cooking app.A variety of recipes in the app are to be chosen.They are uploaded by users，and offer detailed instructions so that others can follow them step by step.Most of the recipes include photos or videos，which are very useful for beginners.When I picked a popular recipe and gave it a try，I discovered that it was not that difficult to make a simple and tasty dish.
In the last few weeks，I’ve thrown myself into home cooking，from boiling noodles in the pot to frying steak in the pan.I hardly eat out any more.Not only is cooking at home cheaper，but I can cook exactly what I want.It’s healthier too.No wonder people say nothing beats home cooking!
Now I am good at cooking a couple of dishes.My plan is to invite my friends over at the weekend to show them my new-found skills.I hope that they will like my cooking!
【自主发现】
在以上加颜色句子中，动词不定式都是作 ，表示具体的事情或将要发生的事情。
表语
返 回
语法 精讲
动词不定式是非谓语动词的一种，它没有人称和数的变化。动词不定式具有动词特征，可与其逻辑主语、宾语、状语等一起构成不定式短语。动词不定式在句中位置灵活、句法功能丰富，可充当谓语以外的几乎所有句子成分。本单元主要复习动词不定式作表语的用法。
一、基本用法
动词不定式可以放在be，become，sound，taste等系动词后面作表语。具体用法如下：
1.表示目的。
The next step is to make sure that you know exactly what is required.
下一步是确保你确切知道需要什么。
The purpose of education is to develop a good personality of children.
教育的目的是培养儿童良好的品格。
2.表示事态发展的结果、预期的结果、不幸的命运或预言。
That experience was to change his whole life.
那次经历会改变他的整个生活。
You must tell me about it，if we are to remain friends.
如果我们还想继续做朋友的话，你就必须告诉我那件事。
3.用于第一人称疑问句，表示征求意见。
What am I to say if they turn down my investment？
如果他们拒绝我的投资，我该怎么说？
4.用于被动语态，相当于can/could，should，ought to，must，具有情态意义。
You are to be rewarded.你应该受到奖励。(should)
It’s nowhere to be found.哪儿也找不到它。(can’t be)
These books are not to be sold.这些书不应该被卖掉。(ought not to be)
5.表示“同意、安排、命令、决定、劝告、意愿、禁止”等。
It has been announced that they are to marry next week.
他们已宣布下星期结婚。(安排)
You must be patient and persistent if you are to succeed.
想要成功，你就必须有耐心和毅力。(愿望)
6.不定式作表语，可用主动形式表示被动意义。
Your client is to blame for the loss of so much money.
损失这么多钱应该怪你的客户。
二、动词不定式与动词-ing形式、动词-ed形式作表语的区别
动词不定式表示某一次具体的、特定的或有待实现的动作，而动词-ing形式表示通常的情况。表示事物的特征或性质时，表语用动词-ing形式；表示人的内心感受时，表语用动词-ed形式。
My dream is to be admitted to Peking University.
我的梦想是考入北京大学。
My first job was working in the City Library when I was 16 years old.
我16岁时，第一份工作是在市图书馆工作。
We are satisfied with our present job.我们对现在的工作很满意。
Please describe a dog that is frightening.请描述一只令人害怕的狗。
三、主语带do，表语省略to的情况
当主语部分有动词do的某种形式时，用作表语的不定式可以省略to。
All you do now is (to) complete the form.
你现在要做的是把这张表填好。
What I’ll do is (to) tell her the truth.
我将要做的就是告诉她真相。
返 回
达标检测
My aim in life is 1. (protect) the environment for future generations.My wish is 2. (become) an environmental consultant after graduation.Many people think that pollution cannot 3._____________
(stop) if we want the country 4. (develop).But that is not true. What I suggest is 5. (cut) back on dangerous and dirty waste from factories.Many times，factories which produce a large quantity of goods are 6. (blame) for much pollution in the environment.Besides，what people should pay attention to is 7. (purchase) products which can be recycled.
语法填空
to protect
to become
be stopped
to develop
to cut
to blame
to purchase
There is no doubt that we have a problem with population as well.The number of people in the world 8. (keep) growing，and we 9.______
(produce) more rubbish and using up more raw materials. What if they run out I am confident that if we are all willing 10._________
(work) together，we can overcome these challenges and keep the Earth clean and healthy.
返 回
keeps
are
producing
to work