Unit 5 Revealing Nature Starting out & Understanding ideas 课件（共28张）

(共28张PPT)
Unit5 Revealing Nature
Starting out &Understanding ideas
In this class, you will
1. read about Charles Darwin’s journey around the world;
2. extract key information by using learning strategies;
3. explore the qualities and spirits needed for scientific exploration and knowledge pursuit.
Learning Objectives
Unusual Animals Today
Unusual
Today
Komodo dragon/k 'm ud u/
Platypus / pl t p s/
Nautilus/ n t l s/
the largest lizard on Earth
may encounter them in Australia and Indonesia
inspire the name of a submarine in a sci-fi classic
one of the world’s weirdest mammals
often considered a “living fossil”
date back to about 100,000 years ago
Starting out
What do they have in common
They are all living fossils.
They all have high research value.
They open a window for us to _________ .
They are the strong evidence to reveal nature.
see the past
Unusual Animals Today
Unusual
Today
A. Life came to exist(begins) from the deep sea.
B. The primitive(earliest) living things started with an electric spark.
C. All the creatures are regarded as creations of Nuwa, a goddess.
D. All species(living things)appeared on Earth at the same time suddenly.
E. Everything evolves(develop) from a common ancestor by natural selection.
Choose the most convincing theory of explaining the origin of life.
How did life begin
evolutionary tree, also tree of life
The species evolve from…to....
higher forms of life
single-cell creatures
multi-cell creatures
water plants
land plants
lower forms of life
Understanding Ideas
That’s the way Charles Darwin, a geologist and naturalist, sees the world.
Prediction
Observe the picture and the title.
Ask questions about what you want to know from the text before reading it.(using who,what, when, where, why, how)
Pre-reading:
A Journey of Discovery
Who: Charles Darwin
What: What was the name of the ship
When:
Where:
Why: Why was there a bird beside Darwin
How:
Who : Charles Darwin
What was the name of the ship
- (What did Darwin record in his notebook )
When did Charles Darwin start his journey and when did he come back
Possible questions:
Where did they arrive during the journey
Why was there a bird beside Darwin
- (Why were there so many species on the island )
How many species did Darwin find during the trip
Read the text and find the answers to the questions posed by yourself.
First reading: read for information
Who : Charles Darwin
What was the name of the ship
-(What did Darwin record in his notebook )
√
√
Charles Darwin
the Beagle

When did Charles Darwin start his journey and when did he come back
-(When did Darwin publish his famous book “On the Origin of Species” )
Charles Darwin
the Beagle
In 1831,(reached the island in 1835)
In 1859
√

√
Where did they arrive during the journey
Why was there a bird beside Darwin
-- (Why were there so many species on the island )
How many species did Darwin find during the trip
Charles Darwin
the Beagle
In 1831, (in 1835)，in 1859
England, South America, the Galapagos Islands
finch (inspiration)
√
√


Some of the predicting questions were well answered, while some were not.
Second Reading: read for inspiration
Read the text again.
Design questions for the text, based on the color hints.
Please design your own question based on the color hint (Para.1).
…not the captain’s first choice…
…degree…
…disgrace…
You may design a question within the text or beyond the text.
Why was Charles Darwin not the first choice
What was his father’s attitude towards him
What qualities did Darwin show to prove himself despite being questioned
Because he had left medical school without completing his degree.
His father predicted he would be a disgrace to…
Despite all the difficulties, he showed strong will and spirits of fearlessness, etc.
(within the text)
(within the text)
(beyond the text)
Possible self-designed questions:
Please design your own question based on the color hint (Para.2-4).
As he studied these, he asked himself the question: how did different species come to exist
What was the question that inspired Darwin to develop his research
How did Darwin come to the question that he asked himself
Darwin asked himself “how did different species come to exist ”
He came to the question after he studied abundant samples of the plants and animals he had collected.
(within the text)
(within the text)
Please design your own question based on the color hint(Para.2-4).
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since.
What are the conflicting beliefs between most people and Darwin at that time
What qualities pushed Darwin to think differently from other people at that time
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since.
Darwin thought differently from others with curiosity, critical thinking, independent thinking, questioning spirits, doubting, suspicion, etc.
(within the text)
(beyond the text)
Please design your own question based on the color hint(Para.2-4).
…saw…
…noticed…
…suspected…
…the answer…
How did Darwin find the answer to his own question
What spirits did Darwin show during his exploration
When he reached the Galapagos Islands in 1835, Darwin saw…and noticed… Then, he suspected…, which lead him to find the answer to his own question: species evolved from earlier ancestors.
During the process of truth-seeking, Darwin was rational, careful, analytical, observant, fond of reasoning.
(within the text)
(beyond the text)
Please design your own question based on the color hint(Para.6-7).
…refused to believe…
…so convincing…
…started to believe
persistence, perseverance
What were many people’s attitudes to Darwin’s theory when he first published his book And then
What efforts had Darwin made to make people accept his idea
What qualities did Darwin have when trying to convince people of his new theory
…refused to believe ...so convincing …started to believe ....
He may have delivered many speeches, explained it to others many times.
Darwin finally made it with determination, persistence, perseverance…
(within the text)
(beyond the text)
(beyond the text)
Third Reading: read for thoughts
Browse the text again and choose the main idea of the passage and give your reasons.
1. Darwin’s interest in various living things made him a great naturalist.
2. Darwin’s journey on the Beagle inspired his Theory of Evolution.
3. Darwin went on a journey to confirm his theory that humans had evolved over time.
√
What is the process of Darwin forming his theory
Third Reading: read for thoughts
A Journey of Discovery
Darwin’s journey on the Beagle
Charles Darwin
the Beagle
Timeline:1831, 1835,1859
Route: English, South America, the Galapagos Islands
ON THE JOURNEY
GENERATE IDEAS
FORM OWN UNDERSTANDING
LOOK FOR MORE
EVIDENCE
DEVELOP IDEAS
Who:
What:
When:
Where:
Why :
How:
A journey of our own
Qualities and Spirits:
doubting, critical thinking, perseverance…
Darwin’s journey of scientific exploration
No matter where our knowledge comes from, we should
always reveal the nature of everything by ourselves,
never abandon the spirits of doubting,
step on our own journey of discovery,
to see our own “evolutionary tree”, even an “evolutionary forest”.
Theory: a convincing way of explaining the world.
Post-reading：
Homework:
Compulsory: Retell the story of “ The Journey of Discovery”.
Optional: Ask 1 question beyond the text about what you what to
know after the class, and find the answer to it by yourself.
Sample: How do you think the human species will evolve in the future
read for development