资源简介

(共25张PPT)
Unit 6 When disaster strikes
(Developing ideas)
课前读词
跟读
组内读
个人读
学习目标
通过本节课的学习，学生能：
1.获取并梳理 Tilly Smith 利用知识预警海啸拯救生命和灾难预警技术应用的细节性信息(学习理解)
2.通过小组合作，讨论并介绍救生技术(应用实践)
3.学生能够正确认识自然灾害，探讨如何在灾害中积极挽救自己和他人的生命。(迁移创新)
Lead-in
Do you remember Zhang Heng's invention in Unit 3
the first earthquake detector
It is a disaster warning machine.
What do you know about disaster warnings
Disaster warnings are early alerts(警报) about possible disasters.
Disaster warnings are to let people get ready and act, so they can cut down on injuries and damage.
Lead-in
Pre-listening
China is one of many countries with disaster warning systems. The government can warn people with text messgaes, TV programmes and online notices. In communities, loud alarms go off. Warning time for storms in China have been increased
to 42 minutes, with more than
90% being correct.
Pre-listening
some natural phenomena(现象) can give us hints(提示).
While-listening
Tilly Smith learnt some disaster warnings and she even saved lives.
Do you know how Tilly Smith saved people's lives
a She ran to the hotel and stayed under the table.
b She sensed the danger and warned others.
c She helped a 10-year-old girl at school
d She helped her classmates leave the coast.
Listen to the radio again and know more about the story.
About the tsunami
1.Where did it happen
It happened along a busy beach in (Thailand/Italy).
2.How long has it been since a tsunami happened here
It's been since a tsunami happened here.
Thailand
many years
Listen to the radio again and know more about the story.
About Tilly Smith
1.How old was she She was years old.
2.What did she see before the tsunami
She saw the water going up the beach.
3.How did she know it was a tsunami
She learnt about tsunamis at school earlier.
4.What did she do then
She warned people on the .They all ran to a .
5.How many lives did she save
She saved about lives with the school lesson she remembered.
10/ten
farther
two weeks
beach
hotel
100
Correct the mistakes.
Thailand
10
going farther up
two weeks
hotel
100
While-listening
Read the words correctly.
bravely / bre vli/
friend /frend/
发音规律：两个字母依次发音并平滑过渡。
bread brown
bridge brother
fresh fridge
fruit friday
While-listening
With the development of technology, some moblie apps can also alert us when disasters happen.
While-listening
Listen to the conversation and know more about the app.
1. What is the name of the app
(Safe World./ Safety Net./ Safe Life.)
2. How many types of disaster can the app warn about
(8./ 18./ 28. )
While-listening
Listen again and fill in the blanks.
1. world map
2. choose
3. serious
4. safe
5. save
6. floods
7. earthquakes
Post-listening
Read aloud the text.
A: Tilly Smith is amazing! I wouldn't know what to do during a natural disaster.
B: Knowledge is very important, but nowadays we can depend on technology, too. For example, a new app, Safety Net, can warn you about natural disasters.
A: How does it work
B: It shows you a world map with all the active disasters flagged. You can choose your area and it will warn you about the upcoming disasters. It can also tell you how serious it might be.
A: That's good. What's more about it
B: Well, the app also gives you advice on staying safe. It tells you the safe place to go and ways to save yourself from danger.
A: Very useful! How many disasters can it warn you of
B: It can give warnings about 18 disasters, like floods, wildfires tsunamis and earthquakes. However, the warning time for earthquakes is very short-just seconds.
A: That could still save lives!
How to introduce an app
name
main function
how it operates
other details
drawbacks(弊端)
The app names... ...
It shows... ...you... ...and you can choose... ...
It can warn people... ....It tells...and ways to... ...
It gives warnings about... ...That could save lives.
Retell
Post-listening
Do you know other life-saving technology
name
main function
how it operates
other details
drawbacks(弊端)
Drones
take photos and videos to show the effects of disasters
provide useful information to emergency services
find survivors and quickly send medicine and food
Post-listening
Do you know other life-saving technology
What are these
They are drones. They're made of plastic and metal.
What do they look like
Most drones are small and white with propellers(螺旋桨) to fly.
How do they help in disasters
They can take photos and videos to show the effects of disasters. Also, they provide useful information to emergency services. like where fires or floods are worst.
What else can they do
They can even find survivors and quickly send medicine and food to people in danger.
How do they work
They fly in the sky and use cameras or sensors to collect information. Then they send the data back to people on the ground.
Do they have any drawbacks
Yes. For examlpe, strong wind or heavy rain can stop them from
flying. Also, their batteries don't last long-so they can't work for hours.
Post-listening
Do you know other life-saving technology
name
main function
how it operates
other details
drawbacks(弊端)
Thermal Imaging Cameras(热成像搜救系统)
detect the heat from human bodies to find survivors during disaster
the system catches this heat from humans and turns it into a visible image.
they are expensive; they might work less well in extremely hot places; their batteries don't last long
Check list
Evaluation Stars
The content is complete. (name, main function, how it operates, other details,drawbacks)
Be confident and say it aloud.
Speak it correctly.
Wonderful body language.
Good cooperation.
自我评价
1.获取并梳理 Tilly Smith 利用知识预警海啸拯救生命和灾难预警技术应用的细节性信息(学习理解)
2.通过小组合作，讨论并介绍救生技术(应用实践)
3.学生能够正确认识自然灾害，探讨如何在灾害中积极挽救自己和他人的生命。(迁移创新)
Knowledge is very important, but nowadays we can depend on technology,
达标检测
复述下面的句子。
1.I wouldn't know what to do during a natural disaster.
2. Knowledge is very important, but nowadays we can depend on technology, too.
3. It shows you a world map with all the active disasters flagged.
4. Well, the app also gives you advice on staying safe.
5.However, the warning time for earthquakes is very short-just seconds.
See you next time~
(Developing ideas)

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