人教版必修三Unit 4 Astronomy: the science of the stars warming up and reading(44张PPT)

(共44张PPT)
Unit
4
Astronomy:
the
science
of
the
stars
Big
ban
Have
you
heard
of
these
terms?
Black
hole
Milky?Way?galaxy?
?Solar?system?
Quiz
1.Who
wrote
“The
Origin
of
Species
”
(物种起源)?
Newton
Einstein
Charles
Darwin
2.How
many
planets
are
there
in
the
Solar
System?
A
7
B
8
C
9
4.
Which
one
belongs
to
reptile?
A.
frog
B.
snake
C.
duck
D.
Fish
E.
bird
F.
dog
3.
Which
one
belongs
to
amphibian?
5.
Which
one
belongs
to
mammal?
A
B
F
6.
Which
gas
is
the
most
important
for
life?
carbon
dioxide
(CO2
)
B.
oxygen
(O2)
C.
nitrogen
(N2)
Chinese
legend:Pangu
separates
the
sky
from
the
earth
The
development
of
the
life
breath
winds
and
clouds
voice
thunder
left
eye
the
sun
right
eye
the
moon
blood
the
rivers
veins
the
roads
女
娲
补
天
Chinese
legend
:The
Goddess
Nuwa
mended
the
heaven
and
created
human
beings
from
the
clay(粘土).
Religious
Beliefs
According
to
Bible
,
God
created
the
world
in
seven
days.
Day
1:
God
created
Day
and
Night.
Day
2:
God
created
sky.
Day
3:
God
created
dry
land—the
earth,
and
seas.
Day
4:God
created
great
lights(the
sun,
the
moon)
and
stars.
Day
5:
God
created
living
things
in
the
air
and
sea.
Day
6:
God
created
the
land
animals
and
the
first
man.
Day
7:
God
rested
and
called
this
day
Holy.
Religious
Beliefs
first
man,
Adam
and
the
first
woman,
Eve
Reading
How
Life
Began
on
the
Earth
Reading
Reading
How
life
began
on
the
earth
Main
idea
of
each
paragraph
Paragraph
1:
Paragraph
2:
Paragraph
3:
Paragraph
4:
The
importance
of
water
for
life
The
development
of
plants
and
animals
on
the
earth
The
formation
of
the
earth
A
widely
accepted
theory
about
the
formation
of
the
universe
d
c
a
b
e.
The
arrival
of
humans
and
their
impact
on
the
earth
Paragraph
5:
e
1.
Big
Bang
2.
a
cloud
of
dust
3.
A
solid
globe
4.
exploded
with
fire
and
rock
5.
produce
the
water
vapour,
carbon
dioxide---atmosphere
How
did
the
earth
come
into
being?
Para2,3
6.
cooled
down
7.
water
appeared
8.
Dissolved
harmful
gases
and
acid
The
development
of
life
Para4,5
extremely
small
plants
First
early
shellfish
Stage
1:
The
development
of
life
in
water
all
sorts
of
fish
green
plants
on
land
insects
on
land
Stage
2:
The
development
of
life
on
land
Next
amphibians
on
land
and
in
the
water
Green
plants
grew
into
forests
Later
reptiles
on
land
dinosaurs
on
land
(1)
What
life
developed
after
forests
appeared?
After
that
mammals
on
land
(2)
What
life
developed
after
dinosaurs?
small
clever
animals
(3)
What
life
developed
after
mammals?
Finally
How
did
the
earth
come
into
being?
After
a
‘Big
Bang’
of
the
universe,
for
billions
of
years,
the
earth
was
just
a
cloud
of
____,
which
settled
into
a
solid
_____
later.
The
earth
________
loudly
with
fire
and
rock,
producing
water
_________
and
gases,
which
were
to
make
the
earth’s
__________.
As
the
earth
cooled
down,
_____
began
to
appeared
on
its
surface,
which
was
to
be
___________
to
the
development
of
life.
dust
globe
exploded
vapour
atmosphere
water
fundamental
How
did
life
come
into
being?
Millions
of
years
later,
an
extremely
small
________
appeared
on
the
surface
of
water,
followed
by
the
development
of
________
and
all
sorts
of
fish.
Next,
green
plants
began
to
grow
on
____
,
with
which
land
________such
as
insects,
amphibians
appeared.
When
plants
grew
into
______,
reptiles
and
dinosaurs
appeared.
With
the
sudden
_____________
of
dinosaurs,
mammals
began
their
life
on
the
earth.
It
was
about
2.6
million
years
ago
that
_______
________
came
into
existence.
plants
shellfish
land
animals
forests
disappearance
human
beings
Work
in
pairs.
Put
the
order
of
development
of
life
into
a
timeline.
Task
3:
comprehending
While-reading
10
7
3
8
4
9
6
1
5
2
12
11
1.
Insects
and
amphibians
appeared.
3.
The
earth
became
a
solid
ball.
5.
Reptiles
appeared.
7.
The
earth
was
a
cloud
of
dust.
9.
Shellfish
and
other
fish
appeared.
11.
Clever
animals
with
hands
and
feet
appeared.
2.
Dinosaurs
appeared.
4.
Small
plants
grew
on
the
water.
6.
Plants
began
to
grow
on
dry
land.
8.
Water
appeared
on
the
earth.
10.
The
universe
began
with
a
"Big
Bang".
12.
Mammals
appeared.
1.
Why
was
the
earth
different
from
the
other
planets?
Because
water
remained
on
the
earth.
2.
Why
did
the
plants
grow
before
the
animals
came?
Because
plants
provided
oxygen
for
animals
to
breathe.
3.
Why
is
it
wrong
to
show
films
with
dinosaurs
and
people
together?
Because
dinosaurs
died
out
long
before
human
beings
developed
on
the
earth.
4.
There
used
to
be
nine
planets
in
the
solar
system.
Recently
scientists
have
decided
that
one
of
them
can
no
longer
be
considered
a
planet.
Do
you
know
the
name
of
that
planet?
Do
you
know
why
they
removed
it?
The
name
is
Pluto.
Scientists
now
think
it
is
too
small
to
be
called
a
planet.
5.
What
problem
is
caused
by
human
beings?
Human
beings
cause
global
warming.
After
the
,
the
earth
was
just
.
Slowly,
it
began
to
combine
into
moving
around
the
sun.
After
it
exploded
loudly,
the
explosion
produced
,
_________________________________
and
other
gases.
“Big
Bang”
a
cloud
of
dust
carbon,
nitrogen
the
water
vapour
a
solid
globe
Retell
As
the
earth
cooled
down,
_____
began
to
appear
on
its
surface.
Because
of
water
and
other
useful
gases,
and
later
___________________________
appeared.Many
millions
of
years
later,
began
to
grow
,
which
led
to
the
appearance
of
.
water
small
plants
grew
shellfish
and
other
fish
insects
and
amphibians
the
first
plants
on
land
When
the
plants
grew
into
forests,
.
Later,
.
When
they
disappeared,
became
more
important.
At
last,
_________
_______
have
became
the
most
important
animals
on
the
planet.
reptiles
appeared
dinosaurs
developed
mammals
human
beings
(
)
1.
No
one
knows
how
the
earth
came
into
existence.
(
)
2.
Stars
and
other
bodies
were
created
after
a
‘Big
Bang’
of
the
universe.
(
)
3.
After
billions
of
years,
the
earth
exploded
and
produced
gases,
which
were
to
become
atmosphere
of
the
earth.
(
)
4.
There
is
water
on
earth
as
well
as
on
Mars.
Skimming
True
or
False
T
T
T
F
(
)
5.
Plants
appeared
later
than
fish.
(
)
6.
Land
animals
came
into
being
as
green
plants
began
to
grow
on
land.
(
)
7.
Scientists
have
found
out
why
dinosaur
suddenly
disappeared.
(
)
8.
It
was
2.6
million
years
ago
that
human
beings
appeared
on
the
earth.
F
T
T
F
Para.
1
How
the
earth
came
into
being.
Para.
2
The
importance
of
water
for
life.
Para.
3
A
theory
about
how
the
universe
came
into
being.
Para.
4
The
arrival
of
humans
and
their
impact
on
the
earth.
Para.
5
The
development
of
plants
and
animals
on
the
earth.
Put
the
correct
time
order
of
development
of
life
1
Insects
and
amphibians
appeared.
2
Dinosaurs
appeared.
3
The
earth
became
a
solid
ball.
4
Small
plants
grew
on
the
water.
5
Reptiles
appeared.
6
Plants
began
to
grow
on
dry
land.
scanning
7
The
earth
was
a
cloud
of
dust.
8
Water
appeared
on
the
earth.
9
Shellfish
and
other
fish
appeared.
10
The
universe
began
with
a
“Big
Bang”.
11
Clever
animals
with
hands
and
feet
appeared.
12
Mammals
appeared.
10
7
3
8
4
9
6
1
5
2
12
11
Time
order:
Group
Discussion
1.
What
problems
are
caused
by
human
beings?
2.
How
to
solve
these
problems?
Homework
1.
Find
out
language
points
and
noun
clauses
in
the
reading
passage.
Discuss
and
analyse
them.
2.
Writing:
Rewrite
the
passage
and
use
as
many
language
points
and
new
words
as
possible.
We
have
only
one
earth!
We
should
take
care
of
the
earth!