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(共15张PPT)
Unit 5 Looking into nature
Developing ideas
Learning Objectives
In this lesson, you will:
1.understand the listening material and grasp the key information.
2.learn that some words have different stress positions when used as different parts of speech.
3.talk about what you have learnt about the secrets of nature.
Look and Say
What secrets do the four pictures show
Which of the secrets interests you most
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.
a A disappearing river in South America
b The life of the people in the Amazon Rainforest
c A boiling river in the Amazon Rainforest
Listen to the talk and choose the correct topic.
Listen again and complete the profile.
What is it
It’s 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
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
Listen to the conversation and complete the table.
sunshine
heat the river
becomes hot
700 kilometres
in the water
produce
possible
research
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's certain / (un)likely / possible that...
Learning to learn
Work in pairs. Choose one unsolved secret of nature and talk about possible explanations.
Atlantis
(亚特兰蒂斯)
Crop Circle
(麦田怪圈)
The truth may be...
It is likely that...
Perhaps it's because...
It's probably a result of...
Useful expressions
There is a (strong) possibility that...
It's possible that...
There's a chance that...
Have you heard of...
Yes, it's very strange. I'm curious about the possible reasons.
Perhaps it's because...
Talk about what you have learnt about the secrets of nature in this section.
Phonetics in use
Stress in words (1)
A word can be stressed on different syllables. If we stress the second syllable, the word is usually a verb. For example, present describes the time, while present describes an action.
Listen and mark the stress.
record a world record / record the temperature
research scientific research / research the nature
perfect a perfect gift / perfect her skills
desert the biggest desert on earth / a deserted house

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