人教新课标高中英语必修三Unit 4 Astronomy the Science of the Stars Using language (共28张PPT)

(共28张PPT)
What
is
the
earth’s
natural
satellite?
The
moon.
（天然卫星）
Unit
4
Using
Language:
A
visit
to
the
moon
Who
is
the
first
Chinese
astronaut
to
go
into
space?
So
far,
how
many
countries
have
succeeded
in
sending
people
up
to
space?
Which
country
first
sent
people
up
to
space?
1
Yang
Liwei
Three
A.
USA
B.the
Soviet
Union
C.
China
2
3
Armstrong
(America,
1969)
Who
is
the
first
man
landing
on
the
moon?
What
was
the
date
when
China
launched
Chang’e
I
successfully?
October
24th,2007
November
5th,
2007
C.
November
22nd,2007
4
5
The
gravity
on
the
moon
is
1/6
as
strong
as
it
is
on
earth.
This
means
that
someone
who
weighs
150
lbs(磅)
on
Earth
would
weigh
only
25
lbs
on
the
moon!
You
might
think
that
this
would
make
walking
much
easier,
but
it
is
actually
quite
difficult
Later
in
the
Apollo(阿波罗)
(Moon
landing)
mission,
astronauts
discovered
that
it
was
easier
to
hop(跳)
than
it
was
to
walk
.
spacewalk
Look
at
the
pictures!
float
zero
gravity/
weightless
skim
passage
quickly,
and
find
out
the
main
idea
of
each
paragraph:
Para
1
(
):
Para
2
(
):
Para
3
(
):
Para
4
(
):
A.The
things
I
did
on
the
moon.
B.We
turned
back
to
the
earth.
C.Last
month,
we
visited
the
moon.
D.
How
the
force
of
gravity
changed
when
we
traveled
from
the
earth
to
the
moon.
Step
1:
Fast
Reading
(3mins)
A
B
C
D
1.
How
many
times
would
the
gravity
change
during
their
journey?
A.
Twice
B.
Three
times
C.
Four
times
D.
Once
2.
Why
was
the
spaceship
not
falling
back
to
the
earth?
A.
Because
it
was
too
far
from
the
earth
to
feel
its
pull.
B.
Because
it
was
too
big
C.
Because
it
was
far
from
the
moon.
D.
Not
mentioned
in
the
text.
Read
the
text
again
and
choose
the
best
answer.
(4mins)
3.Which
one
is
NOT
true
according
to
the
passage?
A.
The
moon’s
gravity
is
not
as
strong
as
the
earth’s
B.
We
enjoyed
ourselves
on
the
moon.
C.
Walking
on
the
moon
was
not
very
easy
D.
Leaving
the
moon’s
gravity
was
more
painful
than
leaving
the
earth’s
4.Which
of
the
following
can
replace
the
phrase
“now
that”?
A.“since”
B.
“when”
C.
“while”
D.
“where”
5.Returning
to
the
earth
was
very_____.
A.interesting
B.
exciting
C.
Frightening
D.
amazing
The
force
of
gravity
would
change
four
times
on
their
journey
.
(
)
2.
When
they
were
on
the
moon,
they
would
not
feel
the
gravity
because
there
was
no
gravity
on
the
moon.
(
)
3.
Since
the
gravity
has
changed,
their
walk
didn’t
need
a
lot
of
practice.
(
)
4.
“A
visit
to
the
moon”
was
not
a
real
story
but
science
fiction
.(
)
5.
Their
returning
to
the
earth
was
frightening.
(
)
F
F
F
T
T
three
would
as
if
did
(
Para3,
L8
)
(
Para2,
L7
)
(
Para2,
Line1
)
(
Para4,
L2
)
Detailed
reading:
True
or
false
questions
3
times
The
force
of
gravity
change
1
change
______________
as
he
left
2
change
___________
when
he
was
in
space
3
change
___________
when
he
was
on
the
moon
the
most
powerful
disappeared
very
light
Read
Para
2
carefully
and
underline
3
sentences
that
are
about
the
changes
of
the
force
of
the
gravity.
(as
he
left,
in
space,
on
the
moon)
Careful
reading
On
the
moon
The
change
of
gravity
In
space
Very
strong
Very
heavy
Disappeared
Floated
weightlessly
Very
light
Leave
the
earth
Scanning
Translate
the
words
or
phrases
below
1.
the
force
of
gravity
_________
2.
spaceship
____________
3.
rocket
__________
4.
pull
_____________
5.
float
_________
spaceship
cabin
____________
7.
weightlessly
_____________
8.
exhausting
______________
9.
escape
the
pull
of
the
earth’s
gravity_______________
10.
lessen
the
weight_______________
11.
in
space
______________
重力
n.宇宙飞船
n.火箭
拉力；牵引力
v.漂浮
太空舱
失重地
adj.筋疲力尽的
逃离地球的引力
减少重量
在宇宙空间
exhausted
1.有机会去做某事
2.
做一次太空旅行
3.向某人解释某事
4.离开，出发
5.接近...
6.高兴，振奋
7.既然
8.掌握，了解
9.(不好之事)突发；爆发
1.
have
a
chance
to
do
sth.
2.
make
a
trip
into
space
3.
explain
to
sb.
sth.
4.
be
off
5.get
closer
to
6.
cheer
up
7.
now
that
8.
get
the
hang
of
9.
break
out
(break-broke-broken)
=set
off
(since)
Find
out
the
useful
phrases
(1
min)
Summary:
Last
month
I
visited
the
moon
with
my
friend.
Before
we
left,
I
was
told
the
force
of
g_____
would
change
three
times
on
our
journey.
Then
we
took
off.
As
we
left
the
earth,
I
became
very
h_______.
gradually
the
weight
l_______.
When
I
was
in
space,
it
d__________.
we
f_______
weightlessly
in
the
cabin
and
I
c_____
___.
when
I
was
on
the
moon,
I
was
surprised
to
find
out
even
walking
needs
lots
of
practice
n__
____
gravity
changed.
The
returning
of
the
earth
was
very
f_________.
we
were
amazed
to
watch
fire
b____
____
on
the
outside
of
the
ship.
gravity
heavy
lessened
disappeared
floated
cheered
up
now
that
frightening
break
out
1.
Last
month
I
was
lucky
enough
to
have
a
chance
to
make
a
trip
into
space
with
my
friend
Li
Yanping,
an
astronomer.
上个月我有幸得到一个机会同我的朋友，一位宇航员李彦平一道去太空旅行。
Language
points
句型
be＋adj.＋enough＋to
do足够……能干……
拓展
enough作副词时可以修饰形容词、副词或动词，放在被修饰的形容词、副词或动词之后，再加动词不定式或介词for短语构成句型：be＋adj.＋enough＋to
do
sth./for
sth.意思为
“足够……可以……”。
enough修饰名词，足够的....
(1)她已到自己作决定的年龄了。
She
is
____________________
decide
for
herself.
(2)屋子不够大容不下做礼拜的人们。
The
room
isn’t
____________________
hold
the
people
who
attend
church.
(3)这篇课文太耐读了。
This
text
is
.
(4)我有足够的钱来买门票。
I
have
.
old
enough
to
big
enough
to
long
enough
for
reading
enough
money
for
the
ticket
①
当看到Beckham，球迷们(the
fans)欢呼起来。
____
_____
________
___
when
they
saw
Beckham.
②
他带她去听音乐会(concert)来使她高兴。
He
took
her
to
the
concert
to
_____
____
____.
The
fans
cheered
up
cheer
her
up
④–
Cheers!
③
Our
football
team
will
compete
against
the
Japanese
team
this
evening.
Let’s
go
and
cheer
them
up！
为某人加油
2.
I
cheered
up
immediately
and
floated
weightlessly
around
in
our
spaceship
cabin
watching
the
earth
become
smaller
and
the
moon
larger.
–干杯!
完成句子
(1)你需要点东西让自己振奋一下。
You
need
something
to
____________________.
(2)我要带安吉到外面转转，让她振奋起来。
I’m
taking
Angie
out
to
____________________.
(3)打起精神来，曼迪！
____________________，Mandy!
cheer
yourself
up
cheer
her
up
Cheer
up
1)
.
A
+
be
+
倍数n+
as
+形容词原级
+
as
+B
3.
But
when
I
tried
to
step
forward,
I
found
I
was
carried
twice
as
far
as
on
the
earth
and
fell
over.
3).
A
+
be
+
倍数n
+形容词比较级
+
than
+
B
A比B大(长、高、宽等)n倍
2).
A
+
be
+
倍数n
+
the
+名词
(size,
length,
width,
height,
depth,
weight,
amount)
+
of
+
B
A是B的n倍
倍数表达法：
这根绳子(rope)是那根绳子的六倍长。
A=nB
A=(n+1)B
这条河是那条河的五倍宽。
1._________________________________
2._________________________________
3._________________________________
这块石头的重量是那块石头的三倍。
1._________________________________
2._________________________________
3._________________________________
这颗树是那颗树的四倍高。
1._________________________________
2._________________________________
3._________________________________
This
river
is
five
times
as
wide
as
that
one.
This
river
is
four
times
wider
than
that
one.
This
river
is
five
times
the
width
of
that
one.
This
stone
is
three
times
as
heavy
as
that
one.
This
stone
is
twice
heavier
than
that
one.
This
stone
is
three
times
the
weight
of
that
one.
This
tree
is
four
times
as
high
as
that
one.
This
tree
is
three
times
higher
than
that
one.
This
tree
is
four
times
the
height
of
that
one.
考例：
Our
new
library
is
________
the
old
one.
A.
four
times
as
large
as
B.
four
times
the
size
C.
four
times
larger
D.
four
times
larger
than
that
The
new
library
is
four
times
the
size
of
that
old
one.
The
new
library
is
three
times
larger
than
that
old
one.
4.We
watched,
amazed
as
fire
broke
out
on
the
outside
of
the
spaceship
as
the
earth’s
gravity
increased.
amazed
是过去分词，此处做状语用
他进来的时候没有人注意到.
He
came
in
_________
.
break
out
(战争,争吵,疾病等)爆发
unnoticed
它与happen,
take
place,
come
out等词的用法一样，
是不及物动词，不能带宾语，不能用于被动语态。
①
My
car
__________
(抛锚)
so
I
had
to
walk
there.
②
The
famous
band
________
(解散)
in
the
end.
③
Thieves
__________
(闯入)
his
house
last
night.
④
The
war
_________
(爆发)
ten
years
ago.
⑤The
enemy’s
defenses
were
strong
but
our
soldiers
_______________(突破；突围).
broke
down
broke
up
broke
into
broke
out
broke
through
与break相关的短语:
The
writer
was
1___(luck)
enough
to
have
a
chance
to
travel
into
space
2__his
friend,
Li
Yanping,
3__astronomer.
They
4
__(pay)
a
visit
to
the
moon
in
their
space
ship.
5___they
left
the
earth,
the
writer's
friend
explained
6___him
that
the
force
of
gravity
would
change
three
times
on
their
journey
and
the
first
change
would
be
the
7___(powerful).Then
they
were
off.
The
writer
floated
weighlessly
around
in
their
spaceship,
8_____was
an
unforgettable
experience
to
him.
When
they
got
to
the
moon,
the
writer
wanted
9___(explore)
immediately.
A
short
time
later,
he
climbed
down
the
steps
from
the
spaceship.
10_____,when
he
tried
to
step
forward,he
found
he
was
carried
out
twice
as
far
as
on
the
earth
and
fell
over.
After
a
while,
11____(get)
the
hang
of
it
,
he
began
to
have
a
good
time
there.
Step
3:
Grammar
filling
(5
mins)
选用方框内合适的词或短语，并用其适当形式填空。(其中有一个多余选项)
Be
careful
of
your
_______,
Tom.
Don’t
eat
too
much.
2.
You
ought
to
have
a
good
rest
_____
you’ve
finished
the
work.
weight
now
that
当堂演练
float;
now
that;
weight;
get
the
hang
of;
watch
out;
pull
3.
She
spent
the
afternoon
______
on
her
back
in
the
pool.
4.
It
seems
difficult
at
first,
but
you’ll
soon
_______________
it.
5.
You
have
to
_________
because
there
are
land-mines
all
over
the
place.
watch
out
floating
get
the
hang
of
float;
now
that;
weight;
get
the
hang
of;
watch
out;
pull