Unit 5 Revealing nature Understanding ideas 课件-外研版高中英语（2019）选择性必修一

(共22张PPT)
（外研版选择性必修一）高中英语
Understanding ideas
Revealing nature
Unit5
Learning Aims:
After the class, students can
collect useful expressions about scientific discoveries；
deeply understand the journey of Darwin's significant discovery;
better understand the scientific spirit of overcoming difficulties and bold exploration as well as the spirit of innovation.
Look at the evolutionary tree and answer the questions.
An evolutionary tree
Lead-in
1 What species do you recognize in the picture
2 What factors can cause
the process of evolution
What species do you
recognise in the picture
An evolutionary tree
algae(藻类）
moss (苔藓）
fern(蕨类）
gymnosperms(裸子植物）
angiosperm(被子植物）
paramecium
(草履虫-单细胞生物）
jellyfish
水母腔肠动物
flatworm
(扁形动物）
earthworm
(蚯蚓-环节动物）
snail蜗牛
(软体动物）
starfish
(棘皮动物）
crab螃蟹
(节肢动物）
fish
turtle海龟
(爬行动物）
frog青蛙
(两栖动物)
bird
zebra斑马(哺乳动物）
human(哺乳动物）
Plants
Animals
Look at the evolutionary tree and answer the questions.
Evolve
lower forms of life
higher forms of life
Lead-in
An evolutionary tree
2 What factors can cause the process of evolution
water
land
For living places
For life levels
3. When talking about evolution, which scientist can come to your mind
proposed the theory of evolution
Published on the Origin of Species
...
Charles Robert Darwin
Feb 12th, 1809—Apr 19th, 1882
Quiz
A Journey of Discovery
Can you guess the genre of the passage
Narration
Darwin’s interest in various living things made him a great naturalist.
Darwin’s journey on the Beagle inspired his Theory of Evolution.
Darwin went on a journey to confirm his theory that humans had evolved over time.
Choose the main idea of the passage and give your reasons.
Pre-reading
Read for the main idea
1835
1859
Today
1831
After
in order of______
time
Para 1
Para 2-5
Para6-7
Charles Darwin
a geologist and naturalist.
fascinated by rocks, plants and animals.
How did different species come to exist
collecting things
asking himself a question:
Para 2：
During his
journey
Read for the detailed information
study various living things
in their natural environments
VS
people
Darwin
All species had appeared on earth at the same time, and had not changed since
Animals evolved as they adapted to
their changing environments
Noticed
Para 3：
Generate ideas
1. In which aspect were these finches different？
2. What caused their differences
Their beaks
Food available on that particular island
Noticed
Para 4 Look for more evidence
A common ancestor
Para5 Develop ideas
Initially:
Gradually:
Today:
Para 6-7 Propose a theory
A
theory
of
evolution
On the Origin of Species was published in 1859.
shocking , refuse to believe
convencing, start to believe
groundbreaking,transformative
In 1831
In 1835
In 1859
The publish of the book.
last for 28 YEARS
Think and Share
What kind of person was Darwin according to the passage
Plymouth, England
Curiosity
Perseverance
Observation
Analytical thinking
Darwin's ability to analyze the data he collected and
formulate new ideas about evolution demonstrated
his strong analytical thinking.
Open-mindedness
Darwin was willing to consider new ideas and
challenge established beliefs about the origins and
development of species.
Dedication
innovation
Think and Share
Before the journey
He was not the captain’s _____ ______
He was a ____ __ to himself and all his family
He was a young man who had left ____ __ without___________.
choice
completing his degree
medical school
disgrace
on a young man
In common people’eyes
In captain’eyes
In families’eyes
first
Q: What are the people’s comments to him
Labels
A Journey of Discovery
Darwin's actual
journey on the Beagle
Darwin's journey to discover
the theory of evolution
Pun
Generate ideas
studied.../noticed...
asked the questions
look for more evidence&developed ideas: noticed.../seemed...suspected...
proposed a theory:
a theory/the book
started his journey
the chance to ...
In 1831
In 1835
In 1859
Retell the passage according to the clues
Plymouth, England
Read for retelling
Discussion
How do you think the human species will evolve in the future ( changes in the environment, technology, social structures, and so on.)
One possibility is that humans may continue to evolve physically to better adapt to our changing environment and lifestyles.
Another possibility is that humans may evolve culturally and socially, rather than physically. As we continue to develop new forms of communication and interaction, our social structures and cultural practices may change in ways that shape our evolution.
Ultimately, the future of human evolution is uncertain, and it is impossible to predict exactly how our species will evolve in the coming years and centuries. However, it is clear that our evolution will continue to be shaped by the choices we make and the world we create around us.
The spirit
of science
Scientificity
Persistence
Inspiration
Research
Intelligence
Tolerance
I can succeed in science, the most important thing is the love of science and insisting on long-term exploration.
---Charles Robert Darwin
Homework
Write a short passage according to these questions.
What have you learnt about the spirit of scientific exploration
How can this spirit help you in your life and studies