牛津译林版（2019）必修 第三册Unit 1 Nature in the balance Reading 课件(共18张PPT)

(共18张PPT)
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Unit 1 Nature in the balance
Reading 1
The Amazon rainforest: a natural treasure
Listen and think : What does this video appeal to people
Learning aims
By the end of the class, we should be able to:
understand the main idea of this article;
get the basic information of the Amazon rainforest;
know the significance and importance of environment protection;
raise the strong awareness of environment protection and take actions
by starting small.




Self study
The Amazon rainforest:
a natural treasure
Judging from the title and the illustrations, What do you think this script is about
Read the passage and try to divide it into sections:
Amazon rainforest
Part 1:_________
Part 2:________
Part 3:_____
An overview of the _____________________________.
The species of _____, _____ and __________ in the rainforest.
The __________ and the _______ situation of the rainforest.
Para:1&2
Para:3&4
Para:5
Amazon
rainforest
plants
birds
mammals
significance
present
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Guidance & Exploration
Part 1: An overview of the Amazon rainforest
Para. 1: ______________ to the Amazon rainforest
Para. 2: Basic ______________ about the rainforest
Introduction
As the ________ rainforest in the world, it plays a significant role in _____________________ balance of the Earth’s ecosystem.
It crosses into _____ countries.
It has an area of around __ million square kilometers.
It is more than _____ size of China.
The Amazon river supports many different ______________.
largest
information
maintaining the fine
8
6
half
ecosystems
How did the Amazon rainforest get its name
Part 2: The species of plants, birds and mammals in the rainforest.
Para. 3: _______ in the Amazon rainforest
Read para. 3 try to understand the rainforest’s different levels.
a system of roots
The forest’s different levels support an unbelievable variety of wildlife.
the tops of the tallest trees
the mass of leaf litter
shorter plants with large leaves
towering ancient hardwoods
Plants
Part 2: The species of plants, birds and mammals in the rainforest.
Para. 4: __________ in the Amazon rainforest
Read and complete the chart about the food chain in the rainforest.
Mammals
nutrients in the earth
insects
frogs
jaguars
microorganisms
The forest’s food chain
leaves and fruits
Part 3: The significance and the present situation of the rainforest.
Read paragraph 5 and find the answer:
It is often known as the ______________________.
Significance:
Present situation:
___ per cent of the rainforest has disappeared ______human activities.
“lungs of the planet”
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due to
Read the passage quickly and distinguish the five sentences bellowing:
The Amazon rainforest is the largest rainforest in the world.
The Amazon rainforest with an area of about 6 million square kilometers is half the size of China.
Of the 390，000 species of plants in the world，over 40，000 can survive in the Amazon rainforest.
More than 1，700 species of animals hide among the Amazon rainforest's plant life.
The Amazon rainforest is a treasure place where wildlife can be used for industrial materials.
√
×
×
√
Not mentioned.
Right./Wrong./Not mentioned .
Summary
A. Plants in the Amazon rainforest.
B. The Amazon rainforest's importance and the danger to it.
C. The Amazon rainforest maintains the fine balance of the Earth's ecosystem.
D. An overview of the Amazon rainforest.
E. Animals in the Amazon rainforest.
Think and choose the correct letters to conclude each paragraph.
Para 1:____ Para 2:____ Para 3:____ Para 4:____ Para 5:____
C
D
B
E
A
Consolidation
1．What's the main idea of the passage
A．The Amazon rainforest is the largest rainforest in the world.
B．The Amazon rainforest gives the richest biodiversity on the earth.
C．The Amazon rainforest is a natural treasure house on the earth.
D．The Amazon rainforest is known as the “lungs of the planet”．
2．Which of the following statements about the Amazon rainforest is TRUE according to the passage
The Amazon rainforest plays an important part in keeping the balance of human and nature.
B．The Amazon rainforest crosses into seven countries，including
Brazil and Peru.
The area of the Amazon rainforest is around 6 million square metesr，more than half the size of China.
D．The Amazon rainforest is named after the Amazon River,which
is close to 6，400 kilometers in length.
Consolidation
3．What can be inferred from the third paragraph in the passage
A．There are only 390，000 species of plants on the earth.
B．Different species of plants in Amazon rainforest grow in different levels.
C．At the bottom of the Amazon rainforest grow some bushes.
D．The ancient Brazil nut tree and the water lilies are living in the same level.
Consolidation
4．The author uses the example of “jaguars” in Paragraph 4_____．
A．to prove that some rare animals are still found in the rainforest
to show that they are only one element of this rainforest's food chain
to explain how the food chain is formed
D．to warn readers to protect the animals from being damaged in the rainforest
Consolidation
5．What's the style of the passage
A．Advertisement.　
B．Travel journal.
C．Experiment report.
D．Documentary script.
Consolidation
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Thank you !