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(共37张PPT)
Unit 5 Power of Ideas
九年级
人教2026秋
上
课文解析一
1.What are they used for 它们用来做什么
[用法讲解]use为动词译为"使用"。
[常见搭配]be used for被用于做某事
it's useful to do sth. 做某事是有用的。
use sth. to do sth."用某物做某事"
make good use of ...充分利用...
be used to do sth.被用来做某事
used to do sth.过去常常做某事
be used to doing sth.习惯做某事
Eg: This app is used for learning English.
这个应用程序用于学习英语。
It's useful to learn English well.
学好英语是有用的。
I use a pen to write this letter.
我用钢笔写这封信。
We must make good use of our free time.
我们必须好好利用我们的空闲时间。
Cotton is used to make cloth.
棉花被用来织布。
The old man used to live in the country, but now he is used to living in the city.
这位老人过去常常住在乡下，但是现在他习惯住在城市。
[派生词]useful为形容词，译为"有用的”;
useless为形容词，译为"无用的"。
Eg: This book is useful.
这本书很有用。
[即学即用]
剪刀用于剪纸。
Scissors_______________cutting paper.
are used for
2.Words can also be turned into sound.文字也可以被改变成声音。
[用法讲解]turn在此处为动词，译为"转变"，还可译为"转动、改变方向"等。
Eg: Please turn the key in the lock.
请把钥匙插到锁里转动。
Turn left at the corner.
在拐角处左转。
[常见搭配]turn... into ...把...变成...
turn...off 关闭(常指关掉自来水、电灯及家用电器等)
turn... on打开(常指开灯或打开家用电器等)
turn down 把声音调低、拒绝
turn up把声音调高、出现
Eg: The magician turned the flower into a bird.
这个魔术师把一朵花变成了一只鸟。
You must turn off the light when you go to bed.
你应当在你睡觉前关灯。
I want to watch TV, can I turn it on
我想要看电视，我能开吗
Don't forget to turn down the volume when you leave the room.
当你离开房间时，别忘了调低音量。
He has turned down the letter.
他拒绝了信。
Don't worry, it will turn up.
别担心，它会出现的。
I can't hear the music clearly, please turn up the radio.
我听不清音乐，请把收音机声音调高。
[易混辨析]become,turn,go,grow和get的区别
become译为"变得"，强调变化过程的完成及身份的变化;
turn译为"变得"，强调变化的结果，侧重颜色、方向或状态的变化;
go译为“变得”，强调由好变坏;
grow译为"变得",强调逐渐变化的过程;
get译为"变得"，强调短暂或逐渐的变化，常与形容词连用。
Eg: He became famous.
他变得很有名。
The leaves turned yellow in autumn.
树叶在秋天变成黄色。
The meat went bad.
肉变质了。
The tree grew tall.
树长高了。
The days are getting longer and longer.
白天变得越来越长。
[即学即用]
1.毛毛虫变成了一只美丽的蝴蝶。
The caterpillar_______________ a beautiful butterfly.
( )2. The pollution problem is serious.
A.becoming B. turning
C. getting D. growing
turned into
D
3.The oil and salt are also added by the machine itself.
油和盐也被加到机器里。
[用法讲解] add作动词，也可译为“加法、添加、加、补充”;add也可作名词，译为“添加物”。
Eg: Add tomato paste, salt and pepper to taste.
酌量添加番茄酱、盐和胡椒粉。
Please add 5 and 8 to get the sum.
请将5和8相加，得到总和。
[常见搭配]add up总计、加起来
add to增加
add on附加
add sth. to sth. 把...加入
Eg: Can you add up the expenses for this month
你能把这个月的开支加起来吗
The rain only added to the difficulties of the journey.
雨只会增加旅程的困难。
We decided to add on an extra day to our vacation.
我们决定在度假期间在增加一天。
Add sugar to coffee.
把糖加入咖啡里。
[派生词]addition为名词，译为"增加、加法”;
additional为形容词,译为"附加的、额外的"。
Eg: In addition to the main course, we served additional desserts.
除了主菜，我们还提供了额外的甜点。
[即学即用]
( ) -- Wow, that's a nice collection of stamps.
-- Yes, but I still need a few to_______ the collection to make it perfect.
A.add to B. add up
C. add up toD. add
A
4.All kinds of everyday objects.各种各样的日常用品。
[用法讲解]kind为名词，译为“种类”;kind也可为形容词，译为“善良的”。
Eg: This is a kind of rare flower.
这是一种稀有花卉。
She is a kind girl.
她是一个善良的女孩。
[常见搭配]a kind of ...一种
all kinds of ...各种各样的...
kind of+形容词有点...
Eg: There are all kinds of books in the library.
图书馆中有各种各样的书。
The little panda is kind of cute.
这个小熊猫有点可爱。
[即学即用]
( )1. There are_________ school things in the store.
A.all kinds of B. a kind of
C. kind of D. a kind
2.她喜欢各种各样的音乐。
She likes_______________music.
A
all kinds of
5.Beforethe radiowasinvented, information travelled very slowly.
在广播被发明之前，信息传播得很慢。
[用法讲解]information为不可数名词。
[常见搭配]search for information online线上搜索信息
a piece of information一条建议
[易混辨析]message、information与news的区别:
information(不可数名词)"信息;消息"常指通过观察、学习、调查或交谈所获得的消息、情报及资料等。在表示信息数量时，可以用"数词+量词+of+不可数名词"的结构,也可用 some/much/a little等修饰。
message(可数名词)"消息;电报";常指口头、书面、无线电等多种渠道传送的信息等.
news(不可数名词)"新闻";常指通过电视、报纸、广播等新闻媒体向大众发布的各种最新消息。
Eg: You can search for the information on the Internet.
你可以在网上搜寻信息。
I can leave a message for you.
我可以为你捎个口信。
I have got good news for you.
我有好消息告诉你。
[即学即用]
( )We can use mobile phones to send_______.
A.message B. messages
C. information D. news
B
6.Suddenly, news could be spread around the world in seconds.
突然，新闻可以在几秒钟内容传遍世界。
[用法讲解]second为可数名词，其复数形式为seconds;second还可为序数词,译为"第二"; second可为形容词，译为"第二的、次要的"; second还可为副词，译为"以第二位"。
Eg: This watch is accurate to the second.
这块手表精确到秒。
She finished second in the race.
她在比赛中获得第二名。
He is the second child in his family.
他是家里的第二个孩子。
He came second in the election.
他在选举中位列第二。
[常见搭配]second hand二手的、秒针
second to none无与伦比、首屈一指
Eg: I bought this car second hand.
我买的这辆车是二手的。
Her dedication is second to none.
她的奉献精神是无与伦比的。
[知识拓展]hour 小时;minute分钟。
[即学即用]
There are 60___________(second) in a minute.
seconds
7.He developed the idea in the 1890s.他在19世纪90年代形成这个想法。
[用法讲解]develop作动词，还可译为“培养、养成、形成、发展”。
Eg: The company is developing a new product.
公司正在开发一种新产品。
She developed a love for painting when she was a child.
她小时候就养成了画画的爱好。
The situation is developing rapidly.
形势正在迅速发展。
[常见搭配]develop into ...发展成、演变成
develop from... 由...发展而来
develop a habit/ interest/ skill养成一种习惯/兴趣/技能
Eg: The small town has developed into a bustling city.
这个小镇已经发展成为一个繁忙的城市。
Modern technology has developed from early inventions.
现代技术是从早期的发明中发展起来的。
He developed a habit of reading every day.
他养成了每个阅读的习惯。
[派生词]development为名词，译为"发展、培养”;
developing为形容词，译为"发展中的";
developed为形容词，译为"发达的"。
Eg: Education is central to a country's economic development.
教育是国家经济发展的核心。
China is still a developing country in every sense of this term.
中国是实实在在的发张中国家。
America is a developed country.
美国是一个发达国家。
[即学即用]
China is a ___________country, but now with its_____________ more people think it may become a _________one soon (develop) .
developing development
developed
8.It also had a big effect on music.它也对音乐产生了影响。
[用法讲解]effect还可为动词，译为“产生、实现、引起、影响"等。
Eg: The new policy will have a significant effect on the economy.
新政策将对经济产生重大影响。
Her words had a soothing effect on him.
她的话对他起了安慰作用。
The new policy is expected to effect change in the industry.
新政策预计将对行业产生变化。
[常见搭配]have an effect on ...对...有影响
in effect实际上、生效中
take effect开始生效、起作用
effect savings节省(金钱、时间等)
be of no effect无效、不起作用
Eg: The new policy had a positive effect on the economy.
新政策对经济产生了积极影响。
The rule is in effect immediately.
该规则立即生效。
The medication started to take effect after an hour.
服药一个小时后开始起作用。
The new process will effect savings in both time and money.
新工艺将节省时间和金钱。
The treatment was of no effect on the disease.
这种治疗对疾病无效。
[派生词]effective为形容词，译为“有效的”;
ineffective为形容词，译为"无效的":。
Eg: Television is an effective means of communication.
电视是一种有效的通信手段。
All other assets in a crisis are ineffective.
在危机中，所有其它资产都是不起作用的。
[即学即用]
实际上，他是这里的老板。
__________, he's the boos around here.
In effect
9.The radio made it much easier for people to enjoy music from artists around the world.
广播对于人们来说让享受来自全世界的艺术家的音乐变得更容易。
[常见搭配]"make it+形容词+for sb.+to do sth."译为"使某人做某事变得..."。
Eg: The new software makes it easier for beginners to edit videos.
新软件让初学者更容易编辑视频。
[即学即用]
( )The loud music made impossible_me_concentrate.
A.it; for; to B. that; of; for
C. it; of; to D. that; for; to
A
10.The word "robot" was introduced for the first time in a play in 1920.
1920年"机器人"一人第一次在一个戏剧中介绍。
[用法讲解]introduce为动词，译为"介绍"。
[常见搭配]introduce oneself自我介绍
introduce sb.to sb.把某人介绍某人
Eg: Please introduce yourself.
请你做一个自我介绍。
Please introduce me to Mr. Wang.
请把我介绍给王先生。
[派生词]introduction为名词，译为“介绍"。
Eg: This is a brief introduction to our company.
这是对我们公司的简短介绍。
[即学即用]
( )When I first came to the class, the teacher asked me to myself.
A.report B. serve
C. introduce D. explain
C
11.Creative ideas was needed to solve different problems.
需要有创意的想法来解决不同的问题。
[用法讲解]solve为动词，译为"解决、解答"。
Eg: It isn't going to solve a single thing.
这解决不了任何问题。
[常见搭配]solve the problem解决问题
Eg: We tried our best to solve the problem.
我们尽最大的努力解决这个问题。
[即学即用]
他非常聪明可以十分钟内解决这个问题。
He is very bright and can________________in ten minutes.
solve the problem
12.These bridges are animal - friendly and allow animals to pass under the tracks.
这些桥对动物很友好，允许动物在轨道下通过。
[用法讲解]allow为动词,译为"允许、容许、准许”。
[常见搭配]be allowed to do sth.被允许做某事
allow sb. to do sth.允许某人做某事
allow doing sth.允许做某事
allow for考虑到、体谅
Eg: She is allowed to watch TV after school.
她放学后被允许看电视。
Please allow me to carry your bag.
请允许我替你拿包。
They allowed smoking in this room only.
他们只允许在这间屋子里吸烟。
We should allow for every possible delay.
我们考虑到任何可能的延误。
[即学即用]
( )Passengers are not allowed_______ on the plane.
A.smoke B. smoking
C. to smokeD. to smoking
C
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Unit 5 Power of Ideas 课文解析一
1.What are they used for 它们用来做什么
[用法讲解] use为动词译为"使用"。
[常见搭配] be used for 被用于做某事
it's useful to do sth. 做某事是有用的。
use sth. to do sth."用某物做某事"
make good use of ...充分利用...
be used to do sth. 被用来做某事
used to do sth. 过去常常做某事
be used to doing sth.习惯做某事
Eg: This app is used for learning English.
这个应用程序用于学习英语。
It's useful to learn English well.
学好英语是有用的。
I use a pen to write this letter.
我用钢笔写这封信。
We must make good use of our free time.
我们必须好好利用我们的空闲时间。
Cotton is used to make cloth.
棉花被用来织布。
The old man used to live in the country, but now he is used to living in the city.
这位老人过去常常住在乡下，但是现在他习惯住在城市。
[派生词] useful为形容词，译为"有用的”;
useless为形容词，译为"无用的"。
Eg: This book is useful.
这本书很有用。
[即学即用]
剪刀用于剪纸。
Scissors_______________cutting paper.
答案:are used for
2.Words can also be turned into sound.文字也可以被改变成声音。
[用法讲解] turn在此处为动词，译为"转变"，还可译为"转动、改变方向"等。
Eg: Please turn the key in the lock.
请把钥匙插到锁里转动。
Turn left at the corner.
在拐角处左转。
[常见搭配] turn... into ... 把...变成...
turn...off 关闭(常指关掉自来水、电灯及家用电器等)
turn... on 打开(常指开灯或打开家用电器等)
turn down 把声音调低、拒绝
turn up 把声音调高、出现
Eg: The magician turned the flower into a bird.
这个魔术师把一朵花变成了一只鸟。
You must turn off the light when you go to bed.
你应当在你睡觉前关灯。
I want to watch TV, can I turn it on
我想要看电视，我能开吗
Don't forget to turn down the volume when you leave the room.
当你离开房间时，别忘了调低音量。
He has turned down the letter.
他拒绝了信。
Don't worry, it will turn up.
别担心，它会出现的。
I can't hear the music clearly, please turn up the radio.
我听不清音乐，请把收音机声音调高。
[易混辨析]become,turn,go,grow和get的区别
become译为"变得"，强调变化过程的完成及身份的变化;
turn译为"变得"，强调变化的结果，侧重颜色、方向或状态的变化;
go译为“变得”，强调由好变坏;
grow译为"变得",强调逐渐变化的过程;
get译为"变得"，强调短暂或逐渐的变化，常与形容词连用。
Eg: He became famous.
他变得很有名。
The leaves turned yellow in autumn.
树叶在秋天变成黄色。
The meat went bad.
肉变质了。
The tree grew tall.
树长高了。
The days are getting longer and longer.
白天变得越来越长。
[即学即用]
1.毛毛虫变成了一只美丽的蝴蝶。
The caterpillar_______________ a beautiful butterfly.
( )2. The pollution problem is serious.
A.becoming B. turning
C. getting D. growing
答案:1.turned into 2.D
3.The oil and salt are also added by the machine itself.
油和盐也被加到机器里。
[用法讲解] add作动词，也可译为“加法、添加、加、补充”;add也可作名词，译为“添加物”。
Eg: Add tomato paste, salt and pepper to taste.
酌量添加番茄酱、盐和胡椒粉。
Please add 5 and 8 to get the sum.
请将5和8相加，得到总和。
[常见搭配] add up 总计、加起来
add to 增加
add on 附加
add sth. to sth. 把...加入
Eg: Can you add up the expenses for this month
你能把这个月的开支加起来吗
The rain only added to the difficulties of the journey.
雨只会增加旅程的困难。
We decided to add on an extra day to our vacation.
我们决定在度假期间在增加一天。
Add sugar to coffee.
把糖加入咖啡里。
[派生词] addition为名词，译为"增加、加法”;
additional为形容词,译为"附加的、额外的"。
Eg: In addition to the main course, we served additional desserts.
除了主菜，我们还提供了额外的甜点。
[即学即用]
( ) -- Wow, that's a nice collection of stamps.
-- Yes, but I still need a few to_______ the collection to make it perfect.
A.add to B. add up
C. add up to D. add
答案: A
4.All kinds of everyday objects. 各种各样的日常用品。
[用法讲解] kind为名词，译为“种类”;kind也可为形容词，译为“善良的”。
Eg: This is a kind of rare flower.
这是一种稀有花卉。
She is a kind girl.
她是一个善良的女孩。
[常见搭配] a kind of ... 一种
all kinds of ... 各种各样的...
kind of+形容词 有点...
Eg: There are all kinds of books in the library.
图书馆中有各种各样的书。
The little panda is kind of cute.
这个小熊猫有点可爱。
[即学即用]
( )1. There are_________ school things in the store.
A.all kinds of B. a kind of
C. kind of D. a kind
2.她喜欢各种各样的音乐。
She likes_______________music.
答案:1. A 2. all kinds of
5.Before the radio was invented, information travelled very slowly.
在广播被发明之前，信息传播得很慢。
[用法讲解] information为不可数名词。
[常见搭配] search for information online 线上搜索信息
a piece of information 一条建议
[易混辨析] message、information与news的区别:
information(不可数名词)"信息;消息"常指通过观察、学习、调查或交谈所获得的消息、情报及资料等。在表示信息数量时，可以用"数词+量词+of+不可数名词"的结构,也可用 some/much/a little等修饰。
message(可数名词)"消息;电报";常指口头、书面、无线电等多种渠道传送的信息等.
news(不可数名词)"新闻";常指通过电视、报纸、广播等新闻媒体向大众发布的各种最新消息。
Eg: You can search for the information on the Internet.
你可以在网上搜寻信息。
I can leave a message for you.
我可以为你捎个口信。
I have got good news for you.
我有好消息告诉你。
[即学即用]
( )We can use mobile phones to send_______.
A.message B. messages
C. information D. news
答案:B
6.Suddenly, news could be spread around the world in seconds.
突然，新闻可以在几秒钟内容传遍世界。
[用法讲解] second为可数名词，其复数形式为seconds;second还可为序数词,译为"第二"; second可为形容词，译为"第二的、次要的"; second还可为副词，译为"以第二位"。
Eg: This watch is accurate to the second.
这块手表精确到秒。
She finished second in the race.
她在比赛中获得第二名。
He is the second child in his family.
他是家里的第二个孩子。
He came second in the election.
他在选举中位列第二。
[常见搭配] second hand 二手的、秒针
second to none 无与伦比、首屈一指
Eg: I bought this car second hand.
我买的这辆车是二手的。
Her dedication is second to none.
她的奉献精神是无与伦比的。
[知识拓展] hour 小时; minute分钟。
[即学即用]
There are 60___________(second) in a minute.
答案:seconds
7.He developed the idea in the 1890s. 他在19世纪90年代形成这个想法。
[用法讲解] develop作动词，还可译为“培养、养成、形成、发展”。
Eg: The company is developing a new product.
公司正在开发一种新产品。
She developed a love for painting when she was a child.
她小时候就养成了画画的爱好。
The situation is developing rapidly.
形势正在迅速发展。
[常见搭配] develop into ... 发展成、演变成
develop from... 由...发展而来
develop a habit/ interest/ skill 养成一种习惯/兴趣/技能
Eg: The small town has developed into a bustling city.
这个小镇已经发展成为一个繁忙的城市。
Modern technology has developed from early inventions.
现代技术是从早期的发明中发展起来的。
He developed a habit of reading every day.
他养成了每个阅读的习惯。
[派生词] development为名词，译为"发展、培养”;
developing为形容词，译为"发展中的";
developed为形容词，译为"发达的"。
Eg: Education is central to a country's economic development.
教育是国家经济发展的核心。
China is still a developing country in every sense of this term.
中国是实实在在的发张中国家。
America is a developed country.
美国是一个发达国家。
[即学即用]
China is a ___________country, but now with its_____________ more people think it may become a _________one soon (develop) .
答案:developing;development; developed
8.It also had a big effect on music. 它也对音乐产生了影响。
[用法讲解] effect还可为动词，译为“产生、实现、引起、影响"等。
Eg: The new policy will have a significant effect on the economy.
新政策将对经济产生重大影响。
Her words had a soothing effect on him.
她的话对他起了安慰作用。
The new policy is expected to effect change in the industry.
新政策预计将对行业产生变化。
[常见搭配] have an effect on ... 对...有影响
in effect 实际上、生效中
take effect 开始生效、起作用
effect savings 节省(金钱、时间等)
be of no effect 无效、不起作用
Eg: The new policy had a positive effect on the economy.
新政策对经济产生了积极影响。
The rule is in effect immediately.
该规则立即生效。
The medication started to take effect after an hour.
服药一个小时后开始起作用。
The new process will effect savings in both time and money.
新工艺将节省时间和金钱。
The treatment was of no effect on the disease.
这种治疗对疾病无效。
[派生词] effective为形容词，译为“有效的”;
ineffective为形容词，译为"无效的":。
Eg: Television is an effective means of communication.
电视是一种有效的通信手段。
All other assets in a crisis are ineffective.
在危机中，所有其它资产都是不起作用的。
[即学即用]
实际上，他是这里的老板。
__________, he's the boos around here.
答案:In effect
9.The radio made it much easier for people to enjoy music from artists around the world.
广播对于人们来说让享受来自全世界的艺术家的音乐变得更容易。
[常见搭配]"make it+形容词+for sb.+to do sth."译为"使某人做某事变得..."。
Eg: The new software makes it easier for beginners to edit videos.
新软件让初学者更容易编辑视频。
[即学即用]
( )The loud music made impossible_me_concentrate.
A.it; for; to B. that; of; for
C. it; of; to D. that; for; to
答案:A
10.The word "robot" was introduced for the first time in a play in 1920.
1920年"机器人"一人第一次在一个戏剧中介绍。
[用法讲解] introduce为动词，译为"介绍"。
[常见搭配] introduce oneself 自我介绍
introduce sb.to sb.把某人介绍某人
Eg: Please introduce yourself.
请你做一个自我介绍。
Please introduce me to Mr. Wang.
请把我介绍给王先生。
[派生词] introduction为名词，译为“介绍"。
Eg: This is a brief introduction to our company.
这是对我们公司的简短介绍。
[即学即用]
( )When I first came to the class, the teacher asked me to myself.
A.report B. serve
C. introduce D. explain
答案:C
11.Creative ideas was needed to solve different problems.
需要有创意的想法来解决不同的问题。
[用法讲解] solve为动词，译为"解决、解答"。
Eg: It isn't going to solve a single thing.
这解决不了任何问题。
[常见搭配] solve the problem 解决问题
Eg: We tried our best to solve the problem.
我们尽最大的努力解决这个问题。
[即学即用]
他非常聪明可以十分钟内解决这个问题。
He is very bright and can________________in ten minutes.
答案:solve the problem
12.These bridges are animal - friendly and allow animals to pass under the tracks.
这些桥对动物很友好，允许动物在轨道下通过。
[用法讲解] allow为动词,译为"允许、容许、准许”。
[常见搭配] be allowed to do sth. 被允许做某事
allow sb. to do sth. 允许某人做某事
allow doing sth. 允许做某事
allow for 考虑到、体谅
Eg: She is allowed to watch TV after school.
她放学后被允许看电视。
Please allow me to carry your bag.
请允许我替你拿包。
They allowed smoking in this room only.
他们只允许在这间屋子里吸烟。
We should allow for every possible delay.
我们考虑到任何可能的延误。
[即学即用]
( )Passengers are not allowed_______ on the plane.
A.smoke B. smoking
C. to smoke D. to smoking
答案:C
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