资源简介

(共23张PPT)
Listening and speaking
Unit 5
Looking into nature
01
02
03
听懂关于亚马逊沸腾河的听力材料，获取并梳理沸腾河的特征、当地人的用途及说话者观点等细节信息。
掌握could, may, might, maybe, perhaps 等词及相关句型，能够谈论自然奥秘的可能性。
了解单词重音变化对词性和词义的影响，提升语音意识。
学习目标
1. What secrets of nature do these pictures show
2. Which of the secrets interests you most
the black hole
黑洞
the Bigfoot
大脚野人
the Loch Ness Monster
尼斯湖水怪
the beginning of
the universe
宇宙起源
新课讲授
Pre-listening
Did you know
Nature is full of secrets. They are waiting to be explained. These include black holes, the beginning of the universe, the Loch Ness Monster and Bigfoot. These secrets awaken our curiosity and drive scientists to better understand the wonders around us.
大自然充满了秘密
唤起我们的好奇心
drive sb. to do sth. 驱使某人做某事
the black hole
黑洞
the Bigfoot
大脚野人
the Loch Ness Monster
尼斯湖水怪
the beginning of
the universe
宇宙起源
Then have a check.
Which of the secrets interests you most
... interests me most. Because it is... (unknown / alive / ...)
the black hole
黑洞
the Bigfoot
大脚野人
the Loch Ness Monster
尼斯湖水怪
the beginning of
the universe
宇宙起源
Listen to the talk and choose the correct topic.
a A disappearing river in South America.
b The life of the people in the Amazon rainforest.
c A boiling river in the Amazonrain forest.
While-listening
1
Then answer the question:
boiling
hot
make tea
in the Amazon rainforest
...
What’s special about the river
What information should you listen for
facts about the river
people’s activities
the speaker’s opinion
Listen again and complete the profile.
2
What is it
It is a boiling river as hot as 1____________ ℃.
What do the local people do with it
· They 2____________with it.
· They clean with it.
· They make 3____________ with it.
· They sometimes go swimming in it, but only after 4__________.
What's the speaker's opinion
It's one of the most 5_______________ of the rainforest.
Listen again and complete the profile.
86
cook
tea
heavy rain
amazing wonders
2
What’s the speaker’s opinion
Read and learn
Work in pairs. Introduce the river to your partner.
facts about the river
people’s activities
the speaker’s opinion
boiling
as hot as 86℃
cook
clean
make tea
go swimming after heavy rain
one of... amazing...
Listen and read. Then retell.
What is it
It is a boiling river as hot as 1_________ ℃.
What do the local people do with it
· They 2____________with it.
· They clean with it.
· They make 3____________ with it.
· They sometimes go swimming in it, but only after 4__________.
What's the speaker's opinion
It's one of the most 5_______________ of the rainforest.
86
cook
tea
heavy rain
amazing wonders
What is the conversation mainly about
How the boiling river came into being.
Listen to the conversation and complete the table.
3
3
Listen to the conversation and complete the table.
Tourists' ideas
The guide's opinions
The ancient people's idea is possible. There's much 1________.
It's unlikely for the sun to
2____________ that much.
Perhaps the river passes a volcano and 3____________
That's not the reason. The nearest volcano is about 4_________ away.
Maybe there are some chemicals 5__________. They can 6________ heat.
That's 7________, but scientists haven't found any yet. More 8________ is needed.
sunshine
heat the river
becomes hot
700 km
in the water
produce
possible
research
Whose opinion do you agree with Why
Listen again. Then talk about how the speakers discuss possibilities.
It’s possible, right
Actually, it’s unlikely for the sun to heat the river that much.
Perhaps the river passes a volcano and becomes hot
Maybe there are some chemicals in the water.
That’s possible.
Listen and read. Then act it out in groups.
Guide: Ancient people here thought that the sun makes the river hot.
Boy: It's possible, right There's a lot of sunshine here.
Guide: Actually, it's unlikely for the sun to heat the river that much. Just think of
outdoor swimming pools. Would the water get to 86°C in summer
Girl: You're right. But how about volcanoes Perhaps the river passes a volcano and
becomes hot
Guide: Good guess! But I'm afraid that's not the reason. The nearest volcano is
about 700 kilometres away.
Girl: I have another idea! Maybe there are some chemicals in the water. They can
produce heat. I've studied them at school.
Guide: That's possible. But scientists haven’t found such chemicals in the river yet.
They need to do more research...
record a world record / record the temperature
produce fresh produce / produce oxygen
perfect a perfect gift / perfect her skills
desert the biggest desert on earth / desert his duty
/ rek d/
/r k d/
/ pr dju s/
/pr dju s/
/ p f kt/
/p fekt/
/ dez t/
/d z t/
Listen and repeat.
Phonetics is use
What unsolved secrets of nature do these pictures show
Crop circles
Atlantis
Post-listening
Work in pairs. Choose one unsolved secret of nature and talk about possible explanations.
4
Useful expressions
The truth may be...
It's likely that ...
Perhaps it's because ...
It's probably a result of ...
There's a (strong) possibility that ...
It's possible that ...
There's a chance that ...
Sample
Work in pairs. Choose one unsolved secret of nature and talk about possible explanations.
Pair work
Write about one unsolved secret of
nature and possible explanations.
Talk about what you have learnt about
the secrets of nature in this section.
Homework

展开更多......

收起↑