高中英语外研版（2019）选择性必修第一册Unit 5 Revealing nature Understanding ideas课件（15张PPT）

(共15张PPT)
Unit5 Revealin
Unders
Unit5 Revealing
Understan
Learning objec
1.Know Darwin
theory of Evolu
2.Have an inter
3.Sum up Darw
qualities.
A Journey of Discovery
Did his father allow him to take this journey
How long did the journey take
Read for time
time
In 1835, order
In
Fill in the time table
1831 ， __
h_e_ r_ e_a_c_h_e_d_ _
t _h_e_G_ _a_l a_p_a_g_o s
I_s l_a_n_d_s_. _ _ _ _
he left
_________
England.
填加
标题
_______
In 1859,
Today,
Before the
journey
During the
journey
_______
it is
_______
On the
Origin
of Species
was
published
regarded
_______
as a very
_______
important
______
work.
After the
journey
Before the journey Read for details
Do you think Darwin was the best
man to be chosen by the
captain of the ship Why
1. It was a young man who had left medical school without
completing his degree.
2. He had recently received a letter from his father predicting that
he would be “a disgrace to yourself and all your family”.
Read for details
During the journey
What did
Darwin
do on
What was
the question
How did
different
species
come to
exist
that he asked
himself
the ship
What was
other
people’s
opinion at
that time
generate an idea
But Darwin began to think differently. He noticed
that some species of animals were very similar to
each other. Maybe animals evolved as they
adapted to their changing environments It was
just an idea, but enough to inspire Darwin to look
for more evidence.
To look for more evidence
It was ___th__e_b_i_r_d_s___ that interested him
the most and he noticed that their beaks
are ___d_if_f_e_r_en__t___.
had evolved
It seemed their beaks ________ according
available
to what food was _____ on that particular
Darwin suspected that the finches had
evolved from _a_c_o_m__m__o_n_a_n_c_e_s_t_o_r.
Develop the idea
When did Darwin publish his book
What was the reaction of the other people
After the journey
It was a completely new idea- a
theory of evolution. Darwin
explained this theory in his
book, On the Origin of Species.
It was not published until 1859
and immediately caused a
storm. Many people refused to
believe that living things,
including humans, had evolved
from lower forms of life. They
were shocked.
propose a theory
On the
Galapagos
Island: He
notced that
the beaks
___
On the
Origin of
Species was
_________
On his
journey ,
he
studied___
develop
ideas
generate
Look for
propose a
theory
study
theory
ideas more evidence
Darwin
suspected
that the
It was just
an idea-
Maybe
________
nches___
Have an interview
with Darwin
Xiao Ming: Good morning, Professor Darwin.
Darwin: Good morning.
Xiao Ming: Can you tell me ……
Think and Share
There are other secrets in the nature, which are
waiting for more “Darwins” to discover. Actually,
you are the “Darwins”, so what preparations
should you make as a student
Homework
1. Introduce Darwin’s journey of
discovery to your classmates.
2. Do further research on Darwin
and his Theory of Evolution.