牛津译林版（2019）必修 第三册Unit 1 Nature in the balance Reading 课件(共23张PPT)

(共23张PPT)

Unit 1 Nature in the balance
Reading (Period I)
M o d u l e 3 U n i t 1 N a t u r e i n t h e b a l a n c e
R e a d i n g ( P e r i o d I )
Ye Wan Xiuning High School
a world full of natural wonders
The Amazon rainforest:
a natural treasure
a documentary script
The Amazon rainforest:a natural treasure
What do you think this
script is about judging from
the title and the picture
mamals
birds
plants
significance
Read the documentary script and write the main
idea of each paragraph.
Para.1 Introduction to the Amazon rainforest.
Para.2 Basic information about the rainforest.
Para.3
Plant biodiversity and levels of the rainforest.
Para.4
Animal biodiversity and the food chain.
Para.5

The rainforest’s value to the human race and
threats to the rainforest.

Detailed information
Brief introduction
Scan the script and fill in the blanks with the figures.
6400
6 million
8
40,000
1300
17%
20%
400
Why are so many figures listed in the script
*To provide specific and accurate information.
*To make people realize the significance of the
Amazon rainforest in a direct way.
Para.3 Plant biodiversity and levels of the rainforest
How many levels of the forest
are mentioned
At the bottom,...Above
that....,The next level is....Then
there are...and finally...
Para.3 Plant biodiversity and levels of the rainforest
the tops of the tallest trees
towering ancient hardwoods
the forest’s
different levels
shorter plants with large leaves
the mass of leaf litter

a system of roots beneath the ground
Rainforests are characterized by a
unique vegetative structure
consisting of several vertical layers.
What is the benefit
of this vertical
structure
Each level of the forest
forms its own little world,
home to different kinds of
living things.
make full use of resources(sunshine ,space...)
Special plants
Water lilies
Brazil nut tree
Pair work
leaves and fruit
jaguars
insects
frogs
Elements
of the
forest’s
microorganisms
food chain
nutrients in the earth
Para.5 The rainforest’s value to the human race and threats to
the rainforest
1.What’s the significance of the rainforest
2. What are the threats the rainforest is facing
Who is to blame for the damage
Para.5 The rainforest’s value to the human race and threats to
the rainforest
2. What are the threats the
rainforest is facing Who is
to blame for the damage
1.What’s the significance
of the rainforest
The Amazon rainforest
breathes life into the planet by
fixing carbon and producing
over 20 per cent of all the
Earth’s oxygen. , it is often
known as the “lungs of the
The rainforest is
disappearing at an
alarming speed, which
in turn puts an
increasing number of
planets”.
r, the Amazon species in danger of
rainforest is a treasure house of
species that can be used for food
or medicine.
extinction.
Discussion
Why is the Amazon
rainforest called “a
natural treasure
“according to the
script
Discussion
Boast the
richest
biodiversity
on the earth.
Discussion
Can we afford to
damage the
Of course ，the answer is no. The
Amazon rainforest is far too important
for us to allow it to be destroyed. It
helps maintain the balance of the
ecosystem .Each species in the forest
has its potential value that remains to
be found. So, biodiversity has great
scientific and educational values.
“lungs of the
planet Why
1.Why should we
preserve the
rainforest’s
biodiversity
2.What else can
biodiversity offer to us
Group work
What can we do to help maintain the ecological
balance of the Amazon rainforest Make a list.
Measures
1.
2.
3.
...
Group work
What can we do to help maintain the ecological
balance of the Amazon rainforest Make a list.
For the citizens: ...
For the government :
*Improve citizens’ awareness of environmental protection;
*Plan ways to use available technology to spur（Vt.促进，加速）
economic growth ;
*Strengthen the management and protection of rainforest and establish
nature reserves（生态保护区）;
...
1.Retell according to the structure of the documentary script.
2.Collect information online and make a list of ways to
maintain the balance of the Amazon rainforest. Please follow
the form below .
For the citizens
For the government
1.
2.
3.
1.
2.
3.