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(共35张PPT)
Unit 6 When disaster strikes
Developing ideas
学习目标通过本节课的学习，同学们将能:
重点:1.掌握 disaster warning、tsunami、loud alarms 等与灾害预警相关的词汇及短语。
2.理解并能运用描述灾害预警、救援行动的语句，如“warn...of...…save lives”等。
3.听懂不同听力材料(故事、对话)，提取关键信息。难点:1.准确捕捉听力中复杂细节(如 Tilly Smith 故事里的时间、地点)
2.用清晰、连贯的英语，完整介绍救生技术涵盖功能、作用等内容。
Learning Objectives
n.服务
n.祖国
v(使)发展
adj. 非常严重的
n.警告，警示
n. 短信，短消息
n.(电视或广播的)节目
n.危险
n.海啸
n.铁
New Words
service
motherland
develop
terrible
warning
text
programme
danger
tsunami
iron
FREE TALK
Have you ever received an emergency alert Can you describe the situation and your reaction
What do you know about disaster warning
你对灾害预警了解多少
Disaster warning systems use technology to detect dangers early and tell people to leave in time or protect themselves.(答案不唯一)
灾害预警系统利用科技提前探测危险并告诉人们及时撤离或保护自己。
DID YOU KNOW
China is one of many countries with disaster warning systems. The government can warn people with text messages, TV programmes and online notices. In communities, loud alarms go off. Warning times for storms in China have been increased to 42 minutes, with more than 90% being correct.
1.Listen to the radio and choose how Tilly Smith saved 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.
√
Tips :1.看选项:快速扫a-d，知道是选Tilly救人的做法。2.听关键:听广播时，抓Tilly的行动，比如有没有感知危险、警告别人这类信息。3.对选项:听到的内容和选项对上，选相符的。
Pronunciation:
/br/ bravely
/fr/ briend
Phonetics in use
What else do you know
1.Listen to the radio and choose how Tilly Smith saved lives.
2.Listen again and correct the mistakes in the host's notes. Cross out the mistakes and write the correct words.
1 A natural disaster happened in Italy.
2 No one died thanks to a 12-year-old girl, Tily Smith.
3 Tilly saw the water going away from the beach.
Thailand
10
farther up
4 She learnt about tsunamis at school two months earlier.
5 She warned people on the beach and they all ran to a park.
6 That school lesson saved about 1,000 lives.
2.Listen again and correct the mistakes in the host's notes. Cross out the mistakes and write the correct words.
weeks
hotel
100
It shows you a 1 .
You can 2 your area.
It will warn you about the upcoming disasters.
It can also tell you how it might be.
It tells you:
the place to go.
ways to yourself from danger.
3.Listen to the conversation and fill in the chart about the app.
choose
world map
serious
safe
save
It can give warnings about 18 disasters, like 6 ,wildfires, tsunamis and 7 .
The warning time for earthquakes is very short.
3.Listen to the conversation and fill in the chart about the app.
earthquakes
floods
3
Listen again. Then talk about how the app is introduced.
Introducing a product
To introduce a product, state its name and main function, eg giving disaster warnings. Say how it operates, using an example if possible. Finally, give other details, such as its cost, look and drawbacks.
Learning to learn
4
Work in groups. Choose a piece of life-saving technology and introduce it. Do more research if necessary.
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
4
It’s... It’s made of...
What’s this
How does it help in
disasters
It can...
Work in groups. Choose a piece of life-saving technology and introduce it. Do more research if necessary.
4
Useful expressions
· One new product is called...
· The purpose of... is to...
· It works by...
· As an example, imagine that..
· It saves lives by...
· One drawback is that...
Work in groups. Choose a piece of life-saving technology and introduce it. Do more research if necessary.
Grammar
过去进行时
一般来说，要表示过去某个时刻或某一时段正在进行的动作，我们常使用过去进行时。常和过去进行时连用的时间状语有：then, at this/that time, yesterday, at... last night等。
- What were you doing at 7 am yesterday
昨天早上7点你在做什么？
- I was having breakfast. 我在吃早餐。
过去进行时
过去进行时除了表示"过去某时刻/时段在做某事"之外，还常常出现在讲故事的语境中，请看下面的句子：
Alice was sitting with her sister by the river.
艾丽斯正和姐姐坐在河边。
They were having a tea party in the garden.
他们正在花园里举行茶会。
过去进行时
过去进行时句子中的谓语部分由"was/were+动词现在分词"构成，与现在进行时结构相似，只是现在进行时中的am/is/are变成了was/were。由此可以推断，过去进行时的句式变化也与现在进行时的一样。过去进行时的结构分为：肯定句、否定句、一般疑问句和特殊疑问句。
过去进行时
过去进行时的结构
肯定句：主语 + was/were + 现在分词（-ing）+ 其他.
She was singing when I entered the room.
我进房间时，她正在唱歌。
They were arguing about the movie last night.
昨晚他们一直在争论那部电影。
过去进行时
过去进行时的结构
否定句：主语 + was/were + not + 现在分词（-ing）+ 其他.
He wasn't paying attention during the meeting.
开会时他根本没在听。
We weren't joking—this is serious!
我们没开玩笑，这是认真的！
过去进行时
过去进行时的结构
一般疑问句：Was/Were + 主语 + 现在分词（-ing）+ 其他
Were you still doing your homework when I called you last night
昨晚我给你打电话时，你还在写作业吗？
Was the baby crying loudly when the earthquake started
地震开始时，婴儿正在大哭吗？
过去进行时
过去进行时的结构
特殊疑问句：疑问词（What/Where/Why等） + was/were + 主语 + 现在分词（-ing）
What were you doing at 10 AM yesterday
昨天上午10点你在干什么？
Why was she crying in the hallway 她为什么在走廊里哭？
过去进行时
过去进行时和一般过去时虽然都表示过去发生的事情，但是过去进行时强调过去某一时刻或时段正在进行或持续的动作；一般过去时表示过去的时间里所发生的动作，所表示的动作往往已经完成。
Laura was reading a novel at eight o'clock last night.
昨晚8点Laura在看小说。
Laura read a novel last night. 昨晚Laura看了一本小说。
过去进行时
过去进行时常和at, yesterday morning, at that time, at... last night等时间状语连用。其实，过去进行时还可以和when, while, as引导的表示过去的时间状语从句连用，形成复合句。
One day, when Henry was working in a restaurant, a snake suddenly appeared.
一天，当Henry正在餐馆里工作时，一条蛇突然钻了出来。
过去进行时
过去进行时还可以和when, while, as引导的表示过去的时间状语从句连用，形成复合句。
While people were waiting for the traffic lights, a car suddenly appeared round the corner.
就在人们等待红绿灯的时候，一辆汽车突然从拐角处驶出。
As the doctors were checking him, the pain got worse.
医生给他做检查时，疼痛加剧了。
过去进行时
when和while引导的从句与过去进行时连用的几种情况：
when引导的时间状语既可以指时间点，也可以指时间段，动词可以是终止性动词，也可以是延续性动词；while引导的时间状语只指时间段，动词必须是延续性动词。
They arrived while we were having dinner. 我们吃饭时他们到了。
= They arrived when we were having dinner.
过去进行时
when和while引导的从句与过去进行时连用的几种情况：
由when引导的时间状语从句，如果主句用过去进行时、从句用一般过去时，则表示一个动作正在进行的时候另一个动作(突然)发生了，强调后一动作发生的突然性。
We were talking when the teacher came in.
我们正在讲话，老师(突然)进来了。
过去进行时
when和while引导的从句与过去进行时连用的几种情况：
该句也可以用while表达，但与用when表达有细微的区别，请注意体会：
While we were talking, the teacher came in.
我们正在讲话的时候，老师进来了。
(只表明老师进来的事实，不强调突然性)
过去进行时
当主句和从句的动作都是延续的或同时发生的，两句都用过去进行时的时候多用while引导。
They were singing while we were dancing.
他们在唱歌，我们在跳舞。
While I was cooking, my brother was setting the table.
我在做饭时，我弟弟在摆餐具。
Homework
Review the key words, expressions and sentence patterns in today's lesson.
Talk about what you have learnt about disaster warnings in this section.
Thank you！

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