牛津译林版（2020）必修第三册Unit 1 Nature in the balance Reading 课件（共23张PPT）

Unit 1
Nature in the balance
Have you ever watched a documentary before?
Step1:Lead in
What is a documentary ?
(of a film, television or radio programme, or photography) using pictures or interviews with people involved in real events to provide a factual record or report.
Step1:Lead in
Pre-reading
the Amazon rainforest

the genre（体裁） of the articl
Documentary script
The ____________ and the _______ of the Amazon rainforest.
importance
danger
Step2:Fast reading
1. What is the general idea of this passage?
2. Find the main idea of each paragraph.
Para 1
Para2
Para3
Para4
Para5
Read the documentary script and write the main idea of each paragraph.
Introduction to the Amazon rainforest
Basic information about the rainforest
Plant biodiversity：levels of the rainforest（plants）
Animal biodiversity：food chain （birds and animals）
The rainforest’s value to the human race;
threats to the rainforest
Analysing the structure
Plant biodiversity
Different levels
Animal biodiversity
Food chain
Importance
Danger
Step 3: Careful Reading
8
6 million
6,400
40,000
1,300
400
20%
17%
Please read Para2-5 carefully and fill in the blanks below. (P4)
Numbers/Statistics
What are they in the balnks?
What’s the function of statistics in documentary scripts?
Besides just listing the figures, how does the script make the figures, the large figures in particular, understandable?
Think about two questions:
By making comparisons with figures.
Statistics can make the facts more convincing, impressive and persuasive.
Read para. 2 carefully and fill in the blanks below.
It has the richest biodiversity on the Earth.
Careful-reading (Para. 2)
Horizontal /?h?r??z?nt(?)l/横向的
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8 countries and one overseas region
location
size
origin
the Amazon River, about 6, 400 km in
length
around 6 million square kilometres of forest
a system of roots
the tops of the
tallest trees
the mass of leaf litter
shorter plants with large leaves
towering ancient hardwoods
Read para. 3 and figure out different layers of the forest.
Home to different kinds of living things
Vertical/?v??t?k(?)l/
纵向的/垂直的
Jaguars
At least 87 species, including frogs
Leaves and fruit
Microorganisms
feed on
break down
feed on
feed on
nutrient
Para. 4 Animal biodiversity & food chain
Complete the following chart about the food chain in the rainforest.
Insects
Circular循环的
different plant levels
complicate food chains
offer places to live (habitat)
provide food and nutrients
the richest biodiversity
The reason why Amazon rainforest has the richest biodiversity in the world.
Horizontal 横向的
Vertical
纵向的
Circular循环的
How is it made clear?
lungs of the planet
Para. 5 Importance & Danger
1. What is the function of the rainforest to us?
fix
carbon
produce oxygen
a treasure house of species
2. What is the major danger to the rainforest?
using metaphors/?met?f?(r)/隐喻
us/human beings
Mind map
Basic information
location and size
Name: getting its name from (1) ____________
richest (2) ____________
Amazon rainforest
Animals
more than 1,300 species
of birds and over 400 species of (5) __________
elements of this forest’s
(6) _______________
Plants
more than 40,000 (3) ______________
different (4) _______ of the forest
Significance
fix carbon and producing (7) ________
having species used for (8)
______________________

Danger
the major danger: (9) ________________
disappearing due to human activities such as (10) ____________ and cattle farming
the Amazon river
biodiversity
plant species
levels
mammals
food chain
oxygen
food or medicine
us/human beings
agriculture
1. What makes the Amazon rainforest a natural treasure according to the script?
2. What is the purpose of this docmentary?
3. What skills does this docmentary use to make it clear?
To emphasis the importance of the Amazon rainforest and call for our joint efforts to protect it.
facts, metaphors/?met?f?(r)/隐喻, examples & comparisons.
for plants

a natural treasure
for human beings
for animals
Step 4: Post Reading
Applying(Group Work)
To raise the awareness of protecting the Amazon rainforest, you are invited to make a speech in the United Nations. Please work with your group members and write the speech together.
Useful expressions:
1. It is my great honor to have a chance to make a speech here.
2. It plays a significant in (doing) sth. ... .
3. ... be of significance to ...
3. ... be home to ...
4. It is time for sb. to do sth.
5. ... make efforts to do sth.


Show Time
Applying (Group Work)

Possible version
Ladies and gentlemen,
It is my great honor to have a chance to make a speech here. Today, I want to talk about our shared home — the Amazon rainforest. Recently, a raging fire broke out in the Amazon rainforest and lasted for 21 days, which leaves results that we can’t afford.
Actually, the Amazon rainforest has a crucial influence on the Earth’s eco-balance and people’s lives. First of all, it is home to a variety of wildlife. More than 40,000 plant species lived in this fantastic forest. More than 1,300 species of birds and over 400 species of mammals can be found here. What’s more, known as the “lungs of the planet”, it contributes almost 20 percent of the earth’s oxygen and has a significant effect on the world’s climate.
As a citizen in the earth, we couldn’t live a better life without the Amazon rainforest. It’s time for us to make joint efforts to protect it.
variety
B1 P5
agriculture
survive
impact
due to
break down
beneath
thus
B2 Complete partB2 on page 5
{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}Preflxes
Words
un-
unbelievable
dis-
disappear
in-/ im-/ il-/ ir-
irreplaceable
non-
non-smoking
{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}Negative prefixes
dislike; disabled; disagree;disappear
incorrect; inconvenient; impossible;
illegal; irregular
unimportant; unfit; unwell; unfriendly;unclear;uncomfortable
nonverbal; nonfat; non-profit
Save the earth, our only home.
Thank You