资源简介

(共26张PPT)
Listening and speaking
Unit 5
Looking into nature
01
02
运用 could, may, might, maybe, perhaps 等词及相关句型谈论可能性, 听懂有关亚马逊沸腾河的听力材料。
两两合作选择自然未解之谜，运用所学表达讨论并给出可能的解释。
学习目标
How do you feel after watching this video
新课讲授
How do you feel after watching this video
I feel amazed.
I feel a little scared.
I feel interested in nature.
I feel curious.
1. What secrets of nature do these pictures show
the beginning of
the universe
宇宙起源
the black hole
黑洞
the Loch Ness Monster
尼斯湖水怪
the Bigfoot
大脚野人
Pre-listening
2. Which of the secrets interests you most
The black hole interests me most.
I think it's very mysterious. I want to know what is inside a black hole. It drives scientists to explore space and awakens my curiosity.
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
While-listening
1
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.
Tips: Before listening, please read the questions and circle the key words.
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.
2
Listen again and complete the profile.
Tips: Before completing, please guess the part of speech first.
num.
v.
n.
n.
n.
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.
2
Listen again and complete the profile.
86
cook
tea
heavy rain
amazing wonders
Guide: Welcome to the Amazon rainforest! Now, I'd like to present a special river to you. Since ancient times, people have talked about a boiling river in the rainforest. Many people laugh at this story, but in fact, it’s true! The water can be as hot as 86°C. People here cook with it, clean with it and make tea with it! There's no need to make a fire! The water only cools down after heavy rain. Then people go swimming in it. I think it's one of the most amazing wonders of the rain forest.
Tapescripts听力文本
What’s the speaker’s opinion
Listening for opinions Expressions such as I think, I believe and
I guess show people's opinions. Remember: people are sharing their ideas, so you don't have to agree. But you should listen to the other person's opinions and be polite.
Learning to learn
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
Listen and repeat.
/ rek d/
/r k d/
/ pr dju s/
/pr dju s/
/ p f kt/
/p fekt/
/ dez t/
/d z t/
Phonetics is use
The tourists and the guide are having a heated discussion. Let’s listen carefully.
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.
v.
不n.
v.
距离
地点
v.
n.
adj.
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
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...
Tapescripts听力文本
Listen again. Then talk about how the speakers discuss possibilities.
Talking about possibilities Could, may and might are used to talk about possibilities. Words such as maybe and perhaps are used, too. We can also use the structure It'scertain /likely /possible that ...
Learning to learn
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...
Tapescripts听力文本
What can you see in the pictures
Crop circles
Atlantis
麦田怪圈，它是田野里出现的巨大圆形图案。
Post-listening
4
Work in pairs. Choose one unsolved secret of nature and talk about possible explanations.
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 ...
A: Have you heard of __________
B: Yes, it's very mysterious. I'm curious about the possible reasons.
A: Perhaps there was an ________. Something made the island sink
into the sea.
B: That's possible. An earthquake might have caused it.
A: Yes, maybe. It's also possible that the city disappeared because
of _________________.
B: Or maybe Atlantis never existed and it’s just a story.
A: Yes, that could be true!
rising sea levels
Atlantis
island
Example
What have you learnt about the secrets of nature
Nature is amazing and full of mysteries.
They awaken our curiosity and make us want to
learn more!
Nature is full of secrets!
Think and share
1.充满奥秘
2.唤起我们的好奇心
3.驱使科学家去……
4.宇宙的起源
5.和…… 一样热
6. 用它清洁
7.去游泳
8. 最近的火山
9. ……之一
be full of secrets
awaken our curiosity
drive scientists to…
the beginning of the universe
as hot as…
clean with it
go swimming
the nearest volcano
one of…
Language points
Expressions
volcano, unlikely, local, rainforest, boiling, universe, awaken…
Listening
掌握了不同的听力技巧获取关键信息，听主旨大意，听细节等。
We have listened to a talk and a conversation to get information and answer questions.
We have learnt about learnt about the secrets of nature.
课堂总结
Must do:
1.Memorize the new words, phrases and
key sentence patterns of this lesson.
2.Finish the relevant after-class exercises.
Choose to do:
1.Write about one unsolved secret of nature
and possible explanations.
2.Talk about what you have learnt about the
secrets of nature in this section.
Homework

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