高中英语人教版新课标必修3 Unit 4 Astronomy: the science of the stars Warming up and reading (共40张PPT)

(共40张PPT)
HOW
LIFE
BEGAN
ON
THE
EARTH
Warming
up&Reading
Unit
4
the
science
of
the
stars
A
Quiz
Game
1.
How
old
is
the
earth?
A.
About
3.5
billion
years
B.
About
4.5
billion
years
C.
About
5.5
billion
years
D.
About
6.5
billion
years
2.
______
of
the
earth
surface
is
covered
by
water.
A.
20%
B.
30%
C.
50%
D.
70%
3.
How
many
planets
are
there
in
the
Solar
System?
A.
6
B.
7
C.
8
D.
9
4.
What
is
the
total
population
of
humans
on
the
earth?
A.
About
3.5
billion
B.
About
4.5
billion
C.
About
5.5
billion
D.
About
6.5
billion
5.
How
long
does
the
rotation
(自转)
of
the
earth
take?
A.
12
hours
B.
24
hours
C.
a
month
D.
365
days
6.
On
what
day
is
the
Earth
day
celebrated?
A.
April
22
B.
May
4
C.
August
21
D.
November
11
What
are
the
names
of
the
eight
planets
that
circle
the
sun?
海王星
Neptune
水星
Mercury
金星
Venus
地球
Earth
火星
Mars
木星
Jupiter
土星
Saturn
天王星
Uranus
Pluto
Scientists
now
think
Pluto
is
too
small
to
be
called
a
planet.
In
this
unit,
we’ll
learn
something
more
scientific.
1.What’s
the
title
of
the
text?
2.
From
the
title,
we
can
predict
that
the
text
may
tell
us
the
origin
of
life
on
the
earth.
Do
you
know
some
stories
about
it?
How
life
began
on
the
earth
In
China:
____________
separates(分)
the
sky
　　　　　　　　　
from
the
earth.
Pangu
盘古
sky
earth
_____________
made
human
beings.
Nuwa
(女娲)
Other
legends
about
the
beginning
of
universe.
God
created
the
world
in
seven
days
The
Biblical
Account
Day
1:
God
spoke
and
separated
light
from
darkness
creating
Day
and
Night.
Day
2:
God
spoke
and
separated
the
water
creating
sky
and
ocean.
Day
3:
God
spoke
and
created
dry
land.
Day
4:
God
spoke
and
created
the
sun,
moon
and
stars.
Day
5:
God
spoke
and
created
living
creatures
in
the
air
and
sea.
Day
6:
God
spoke
and
created
the
land
animals
and
man.
Day
7:
God
rested
and
blessed
this
day
calling
it
Holy.
How
life
began
on
the
earth
Fast
reading
Read
the
passage
on
P25
quickly,
answer
the
following
questions
and
get
the
main
ideas.
Para.1
Para.2
Para.3
Para.4
Para.5
A
theory
about
how
the
universe
was
formed
The
formation(形成）
of
the
earth
The
importance
of
water
for
life
The
development
of
plants
and
animals
The
arrival
of
humans
and
their
effects
on
the
earth
Part1:
The
development
of
the
earth
Part2:The
development
of
life.
1.
When
did
the
“Big
Bang”
happen?
It
happened
several
billion
years
ago.
Scanning
Read
the
passage
quickly
and
answer
the
questions.
2.
What
form
was
the
earth
after
the
“Big
Bang”?
The
earth
was
still
just
a
cloud
of
dust.
3.
What
made
up
the
earth’s
atmosphere
after
the
earth
exploded?
Carbon,
nitrogen,
water
vapour
and
other
gases.
Detailed
Reading
Part
1(1~3):
The
development
of
the
earth
Part1
(para1~3)
The
development
of
the
earth
1.
After
the
Big
Bang,
what
happened?
2.
What
happened
to
the
solid
globe
next?
3.
What
did
the
water
vapour
and
gases
form?
4.
What
appeared
after
the
earth
cooled
down?
5.
What
did
the
water
do?
1.
After
the
Big
Bang,
what
happened?
a
cloud
of
dust
a
violent
solid
ball
Settled
into
exploded
with
fire
and
rock
produced
water
vapour
and
gases
2.
What
happened
to
the
solid
globe
next?
In
time
3.
What
did
the
water
vapour
and
gases
form?
the
earth’s
atmosphere
Water
appeared
on
its
surface
which
is
important
for
the
beginning
of
life
on
the
earth.
4.What
appeared
after
the
earth
cooled
down?
5.What
did
the
water
do?
It
allowed
the
earth
to
dissolve
harmful
gases
and
acids
into
the
oceans
and
seas.
a
cloud
of
_____
Big
Bang
a
solid
_______
slowly
combine
the
earth
______
down
it
exploded
loudly
with
_____
and
_____
water
the
earth’s
___________
dust
ball/globe
fire
rock
atmosphere
cooled
How
did
the
earth
come
into
being(产生）?
Part
2
(4~5)
The
development
of
life
1.What
life
developed
after
water
appeared?
2.
What
life
developed
after
forests
appeared?
3.
What
life
developed
after
dinosaurs?
4.
What
life
developed
after
mammals?
Part
2
(para4~5)
The
development
of
life
arrival
of
small
plants
in
water
1.What
life
developed
after
water
appeared?
early
shellfish
and
all
sorts
of
fish
Part
2
(para4~5)
The
development
of
life
reptiles
on
land
dinosaurs
on
land
2.
What
life
developed
after
forests
appeared?
How
do
reptiles
produce
young?
by
laying
eggs
mammals
on
land
3.
What
life
developed
after
dinosaurs?
How
do
mammals
produce
young?
by
giving
birth
to
baby
animals
and
producing
milk
to
feed
them.
small
clever
animals
4.
What
life
developed
after
mammals?
1.Who
are
the
small
clever
animals
with
hands
and
feet?
2.
Are
they
taking
care
of
the
earth
well?
Why?
?
Human
being
No.
Because
they
are
putting
too
much
carbon
dioxide
into
the
atmosphere,
which
prevents
heat
from
escaping
from
the
earth
into
space.
The
earth
may
become
too
hot
to
live
on
.
We
have
only
one
earth!!!
How
life
began
on
the
earth.
“Big
Bang”
other
bodies
_______
stars
Earth:
a
cloud
of
_____
atoms
dust
Summary
a
solid
______
the
earth’s
___________
other
_____
Water:
___________
to
the
development
of
life
water
vapour
nitrogen
carbon
extremely
small
_______
on
the
surface
of
the
water
globe
gases
atmosphere
fundamental
plants
early
_________
and
all
sorts
of
fish
green
plants
on
land
land
animals
insects
amphibians
________
huge
animals
(dinosaurs)
the
rise
of
__________
human
beings
shellfish
reptiles
mammals
Homework
1.
Read
the
passage
more
after
class.
2.
Each
group
translate
one
paragraph.
Thank
You
以下为补充内容：
True
(T)
or
False
(F).
1.
The
earth
appeared
before
the
Big
Bang
happened.
2.
The
original
atmosphere
consisted
of
nitrogen
and
oxygen.
3.
The
main
difference
between
the
earth
and
other
planets
is
that
there
is
water
on
the
earth.
4.
Life
began
in
water
and
then
on
land.
F
F
T
T
5.
Mammals
appeared
before
the
development
of
dinosaurs.
6.
Dinosaurs
could
give
birth
to
young
baby
animals
and
produced
milk
to
feed
them.
7.
Human
beings
produce
too
much
carbon
dioxide
which
causes
the
global
warming
on
the
earth.
8.
According
to
the
text,
human
beings
would
disappear
in
the
end.
F
F
T
F