资源简介

(共31张PPT)
2024年牛津版
英语（七年级下）
Unit 6
Section 1 Listening and
Section 3 speaking
Electricity everywhere
课堂教学目的
1
2
新课导入
3
Content
课堂活动
5
课堂训练
6
课堂小结
4
课堂重难点
课堂教学目的
1
2
课堂重难点
1.本单元的听力部分侧重培养学生获取主旨要义及关键细节的能力。
2.口语部分可以结合前面听力部分some interesting facts about electricity讨论如何安全用电。并学习辅音音节的划分规则。
文化意识
课堂重难点
思维品质
课堂教学目的
1.听前预测，捕捉信息。
2.能够讨论安全用电的方法和建议。
树立安全用电、珍惜生命的观念。
对学生进行生活常识和安全教育，了解用电安全—即家用电器的安全使用问题
Listening
新课导入
3
Interesting facts about electricity
How much do you know about electricity
First ,Electricity isn’t an invention it is a discovery.
Electricity is a discovery. It exists in nature, like in lightning and electric eels. Scientists studied and understood its properties, rather than inventing it.
electric eels
lightning
Who and when was electricity first discovered
Many believe that electricity was first discovered by the Ancient Greeks more than 2,500 years ago
Interesting facts about electricity
How much do you know about electricity
How fast electricity travels
The answer is: the speed of light! That is, about 300 million metres per second!
Interesting facts about electricity
How much do you know about electricity
Interesting facts about electricity
How much do you know about electricity
Who and when was the bulb first invented
Thomas Edison is often thought as the inventing the first practical light bulb in 1879
Interesting facts about electricity
How much do you know about electricity
Electric cars are very popular now, but the idea is not new. British inventor Rober Anderson invented the first electric car around 1832.
Interesting facts about electricity
How much do you know about electricity
Electricity waste is very serious in various countries, and we need to save electricity
Famous cities in Asia
新课活动
4
What do you know about electricity
Think
(1) Is electricity an invention or a discovery
1 How much do you know about electricity Discuss the questions in pairs.
Electricity is a discovery. It exists in nature.
(2) How fast does electricity travel
(3) Is the electric car a new idea When was it first invented
The same speed as light! That is, about 300 million metres per second!
Electric cars are very popular now, but the idea is not new. British inventor Rober Anderson invented the first electric car around 1832.
2 Listen to a podcast about electricity and tick ( ) the
topics mentioned in it.
(1) Who first discovered electricity
(2) How we produce electricity today
(3) How electricity travels to our home
(4) When the first electric car was invented
(5) How much electricity is wasted each year
in the UK and the USA
3 Listen again and complete the notes.
smooth stone
light
the first electric car
the second half of the 19th century
billions of pounds
offices
Good evening. Thanks for joining me in this week's The Natural World. I'm Rebecca. Tonight, I'll share some interesting facts about electricity with you.
First of all, as you may already know, electricity was not invented. It was discovered. But do you know when it was first discovered Many believe that electricity was first discovered by the Ancient Greeks more than 2,500 years ago. They produced electricity by rubbing fur against smooth stone!
Next, do you know how fast electricity travels The answer is: the speed of light! That is, about 300 million metres per second!
Another interesting fact is about electric cars. They are very popular now, but the idea is not new. British inventor Rober Anderson invented the first electric car around 1832. However, this car was not very useful. It wasn't possible to drive electric cars until the second half of the 19th century.
Finally, we are always trying our best to make good use of this energy, but according to a report, billions of pounds of electricity is wasted every single year in the UK. And another report shows that in the USA, about 30% of the electricity used in offices each year is wasted. This just shows how important it is to save electricity in our daily lives.
That's all from me today. I hope you enjoyed learning a bit more about electricity.
4 What other interesting facts about electricity do you know
Share them with your classmates.
Human's first contact with electricity was electric fish.
Our brain transmits signals through electricity.
Brooklyn Bridge (in New York) was the first bridge powered by electricity.
Speaking
How can we use electricity safely and wisely
Think
Talk in pairs about safety rules for using different electrical appliances. Look at the example and use the tips below to help you.
Talking about using electricity safely
Electrical safety tips
Never touch electrical appliances with wet hands.
Make sure all cables are safe to use.
Do not use broken cables / electrical appliances.
Read the instructions carefully before you use a new electrical appliance.
S1: We use different electrical appliances in our homes every day.
How can we use them safely
S2: We need to make sure that the cables (n. 电缆) are connected
correctly before we turn on the device. And we mustn't touch
any electrical appliances with wet hands.
S1: That's right! Also, we cannot use any broken cables.
...
We can use electricity safely and wisely
Before you touch any electrical device, make sure your hands are dry. Wet hands can easily conduct electricity, putting you in danger.
Unplug chargers and other devices when they aren't in use. This not only saves electricity but also reduces the risk of overheating.
Never stick anything into electrical sockets. it can cause a short circuit or an electric shock.
Use electrical appliances only as they are designed to be used. Don’t try to modify them, or you may damage the appliance and even start a fire.
When you see a damaged power cord, don’t use the device. Instead, tell an adult so they can arrange for it to be fixed.
音节：有的单词只包括一个音节，有的单词包含两个、三个或更多的音节，分别称为单音节词、双音节词和多音节词。 单音节词一般都是重读的。双音节词一般只有一个音节是重读的。多音节词除了重读音节外，有时还有一个次重读音节。
音节的核心是元音。少数辅音字母，如l、m、n也可以构成非重读音节。一个音节里可以只有一个元音字母而没有其他字母，如i 、a。元音字母的前面或后面可以有一个或两个辅音字母。如we, she, at, ask, box, them, desk, middle, letter等。
音节
Read the following words aloud. Pay attention to the syllables in the words.
form
cooker
computer
supermarket
electricity
little
middle
pencil
people
table
uncle
3
1
2
3
2
3
3
4
5. candle
6. dangerous
7. battery
8. American
1. newspaper
2. hear
3. able
4. anyone
Say these words. Then write the number of syllables.
课堂小结
5
1.We have listened to some interesting facts about electricity
2. We have learned to identify the syllables in English words.
3. We have learned to talk about how to use electricity safely and wisely
一、找出每组单词中音节数目与其他三项不同的一项。
( )1. A. allow B. beautiful C. airport D. happy
( )2. A. bright B. clever C. wise D. good
( )3. A. careful B. helpful C. useful D. wonderful
( )4. A. crazy B. interesting C. excited D. important
( )5. A. battery B. example C. model D. possible
C
B
B
D
A
课堂训练
6
二、根据汉语或首字母写单词
1.We should stand a_______ bullying at school. It makes everyone feel safe.
2.Don‘t drive so fast on the road. S_______ always comes first.
3.The train is moving at a great s________. We can reach the city soon.
4.Listen carefully to the teacher’s i__________ before the game starts.
5. Let’s __________(连接)the speaker to the computer. Then we can enjoy music.
6. The ladder is leaning a_________ the wall. Make sure it’s stable before you climb up.
7. The surface of the glass table is ______(光滑的）, so I have to be careful not to let my phone slide off.
8. Electricity was not i__________. It was __________(发现).
9. They p___________ electricity by rubbing fur against smooth stone!
10. We can use electricity safely and ________(明智地).
against
Safety
speed
instructions
connect
against
smooth
invented discovered
produced
wisely
三、完成句子
1.我们总是尽最大努力充分利用这种能量
we are always ____ _____ _____to ____ ____ _____ _______this energy
2.他驾驶着电动汽车以每小时100公里的速度行驶。
He is driving an electric car __ ____ ___ _____100 kilometers per hour.
3.正如你可能所知，电不是发明出来的。它被发现了。
_____ ____ ____ ______, electricity was not invented. It was discovered.
4.他们用皮毛摩擦光滑的石头来发电！
They _________ _______by rubbing fur _________smooth stone!
5.直到19世纪下半叶，才有可能驾驶电动汽车。
It _____possible to drive electric cars _____the second half of the 19th century.
trying our best make good use of
at a speed of
As you may know
produced electricity against
wasn’t until
6.在你使用一个新的电器之前，请仔细阅读用法说明。
Read the _________ carefully before you use a new ________ ________.
7.我们需要确保电缆已连接到设备在我们打开它之前
We need to _____ _______that the cables _____ _____ _______the device
correctly before we turn on it
instructions electrical appliance
make sure are connected to
Good evening! I’m Rebecca, and welcome to this week’s The Natural World. Tonight, I’ll tell you some interesting things about electricity.
Electricity wasn’t invented; it was discovered. The a_________ Greeks discovered it over 2,500 years ago by rubbing fur a________ smooth stone.
Electricity travels at the s_____ of light, about 300 million metres per second.
The first electric car was invented by British inventor Rober Anderson around 1832. But it wasn’t really useful u________ the late 19th century.
Sadly, a lot of electricity is wasted. In the UK, billions of pounds of electricity is wasted every year. In the US, 30% of office electricity is wasted. So, it’s important to use electricity w_______ .
That’s all for today. I hope you learned something new about electricity.
四、语篇填词
wisely
ancient
against
until

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