(共47张PPT)
Unit
4
Space
Exploration
Period
3
Discovering
Useful
Structures
人教版本
必修三
Lead-in
What
Powers
a
Spacecraft
Spacecraft
have
instruments
to
help
them
take
pictures
and
collect
information
in
space.
But
they
need
electricity
to
power
those
instruments
and
send
the
information
back
to
Earth.
Where
does
the
power
come
from
Lead-in
What
Powers
a
Spacecraft
A
spacecraft
generally
gets
its
energy
from
at
least
one
of
three
power
sources:
the
Sun,
batteries
or
unstable
atoms.
To
choose
the
best
type
of
power
for
a
spacecraft,
engineers
consider
where
it
is
traveling,
what
it
plans
to
do
there
and
how
long
it
will
need
to
work.
Lead-in
New
words
They
charged
the
accident
to
the
lack
of
experience.
Please
call
before
you
come,
otherwise
we
might
not
be
home.
or
else
differently
in
other
ways
not
have
sth.
not
have
enough
of
sth.
New
words
It
goes
beyond
our
research.
These
materials
can
be
recycled
into
other
packaging
products.
Current
success
does
not
mean
success
in
the
future.
save
for
reuse
use
again
differently
reuse
sth.
past
except
impossible
for
existing
now
valid
flow
of
water
or
air
New
words
We
have
provided
sufficient
information
to
you
on
this
issue.
Let
them
figure
out
the
answer
without
you.
enough
work
sth.
out
decide
Let’s
play
Let’s
play
1.
Be
modest,
_________
you
will
lag
behind.
2.
_______
of
food
and
supplies
caused
disaffection
among
the
soldiers.
3.
They
_________
empty
tins
so
as
to
use
the
metal.
4.
The
contents
go
far
_______
the
title.
5.
Even
though
they
are
a
step
in
the
right
direction,
our_______
processes
are
not
enough.
6.
They
had
no
evidence
_________
to
hold
him.
7.
Father
is
trying
to
figure
______
his
tax.
otherwise
Lack
recycle
beyond
current
sufficient
out
Let’s
learn
Look
at
the
following
sentences
and
focus
on
the
italicized
infinitives.
In
pairs,
discuss
their
functions
and
meanings.
I
trained
for
a
long
time
to
fly
airplanes
as
a
fighter
pilot.
As
we
all
know,
an
astronaut
needs
to
be
healthy
and
calm
in
order
to
work
in
space.
First
of
all,
you
must
be
intelligent
enough
to
get
a
related
college
degree.
Some
scientists
were
determined
to
help
humans
realize
their
dream
to
explore
space.
On
12
April
1961,
Yuri
Gagarin
became
the
first
person
in
the
world
to
go
into
space.
Rewrite
the
sentences
using
infinitives
or
“in
order
to/so
as
to
+
do”.
Change
the
italicized
parts
accordingly.
In
2003
Yuri
Malenchenko
became
the
first
person
who
got
married
in
space.
In
2003
Yuri
Malenchenko
became
the
first
person
to
get
married
in
space.
2.
In
space,
astronauts
collect
all
dirty
water
so
that
it
can
be
recycled
for
later
use.
In
space,
astronauts
collect
all
dirty
water
so
as
to
recycle
for
later
use.
E.g.
3.
Mankind
has
always
been
curious
about
the
universe
and
many
people,
have
dreamt
that
one
day
they
would
fly
into
space.
Mankind
has
always
been
curious
about
the
universe
and
many
people
to
dream
that
one
day
they
would
fly
into
space.
4.
Astronauts’
bones
and
muscles
can
get
very
weak
in
space
due
to
the
lack
of
gravity,
so
they
need
to
exercise
every
day,
which
will
help
them
stay
healthy.
Astronauts’
bones
and
muscles
can
get
very
weak
in
space
due
to
the
lack
of
gravity,
so
they
need
to
exercise
every
day
in
order
to
help
them
stay
healthy.
5.
Astronauts
have
to
use
tape
to
stick
everything
down
while
working
in
space
because
everything
would
float
off
otherwise.
Astronauts
have
to
use
tape
to
stick
everything
down
to
work
in
space
because
everything
would
float
off
otherwise.
6.
During
a
spacewalk,
astronauts
have
to
move
slowly
so
that
they
can
keep
their
bodies
under
control.
During
a
spacewalk,
astronauts
have
to
move
slowly
so
as
to
keep
their
bodies
under
control.
Complete
the
passage
with
the
correct
forms
of
the
verbs
in
brackets.
Sending
people
to
other
planets
or
even
beyond
the
solar
system
is
not
an
easy
goal
_________(achieve).
One
of
the
problems
is
that
the
trip
would
take
over
two
years
_________(get)
to
the
closest
planet,
Mars,
and
back.
Although
light
is
the
fastest
thing
_________(know)
in
the
universe,
it
could
take
more
than
four
years
to
reach
the
nearest
star
system.
Will
scientists
figure
out
a
way
_________(store)
sufficient
food
and
water
for
the
long
journey
to
achieve
to
get
to
know
to
store
Complete
the
passage
with
the
correct
forms
of
the
verbs
in
brackets.
Is
it
possible
to
travel
faster
than
light
No
one
knows
the
answers
yet.
However,
space
scientists
never
give
up.
They
are
experimenting
with
growing
crops
in
space
so
as
_______(help)
astronauts
get
enough
food
on
longer
journeys
through
space.
to
help
Infinitives
做主语
不定式置于句首
To
get
there
by
bike
will
take
us
half
an
hour.
To
make
up
for
lost
time
is
not
possible.
To
lean
out
of
the
window
is
dangerous.
To
save
money
now
seems
impossible.
用it作形式主语，把真正的主语不定式置于句后
It's
our
duty
to
take
good
care
of
the
old.
How
long
did
it
take
you
to
finish
the
work
It
seemed
impossible
to
save
money.
作宾语
I
happen
to
know
the
answer
to
your
question.
The
question
is
how
to
put
it
into
practice.
I
find
it
difficult
to
learn
English
well.
作补语
Father
will
not
allow
us
to
play
on
the
street.
We
believe
him
to
be
guilty.
The
book
is
believed
to
be
uninteresting.
to
see
The
driver
failed
________(see)
the
other
car
in
time.
He
feels
it
his
duty
_________(help)
the
poor.
It
is
difficult
for
us
_________(finish)
writing
the
composition
in
a
quarter
of
an
hour.
It's
a
great
honor
___________(invite)
to
Mary's
birthday
party.
There
is
nothing
_______(do)
now.
Practice
to
help
to
finish
to
be
invited
to
do
作定语
一般置于被修饰词之后用作后置定语
Scientists
were
determined
to
help
humans
realize
their
dream
to
explore
space.
On
12
April
1961,
Yuri
Gagarin
became
the
first
person
in
the
world
to
go
into
space.
Sending
people
to
other
planets
or
even
beyond
the
solar
system
is
not
an
easy
goal
to
achieve.
Jessie
got
a
new
toy
to
play
with.
She
has
no
friend
to
depend
on.
作状语
可以表示目的、结果或原因等
Scientists
work
hard
to
find
out
the
secrets
of
the
universe.
As
we
all
know,
an
astronaut
needs
to
be
healthy
and
calm
in
order
to
work
in
space.
You
must
be
intelligent
enough
to
get
a
related
college
degree.
I’m
afraid
the
whole
process
is
too
complicate
to
explain
in
a
few
words.
We
were
surprised
to
find
that
he
had
already
left.
the
first
Chinese
astronaut
to
go
into
space.
1.
Q:
Why
is
Yang
Liwei
famous
in
China
A:
Because
he
is
__________________________________________________（第一个进入太空的中国宇航员）
Let’s
play
too
long
and
too
boring
to
finish.
2.
Q:
How
do
you
feel
about
the
film
2001:
A
Space
Odssey
A:
I’m
afraid
the
film
is
__________________________________________________（太长太乏味而无法看完）
no
longer
to
be
safe
to
live.
3.
Q:
Why
was
the
Russian
space
station
Mir(和平空间号)
brought
down
out
of
orbit
A:
One
of
the
reasons
is
that
Mir
was
too
old
and
__________________________________________________（不再是安全的居所）
Let’s
play
the
first
Chinese
to
step
onto
Mars.
4.
Q:
Would
you
like
to
travel
into
space
one
day
A:
Yes,
and
I
want
to
become
__________________________________________________（登录火星的第一个中国人）
too
complex
to
explain
in
a
few
words.
5.
Q:
Could
you
provide
a
simple
introduction
to
how
space
rockets
work
A:
I’m
afraid
the
whole
process
is
__________________________________________________（太复杂了，无法用几句话解释清楚）
Let’s
play
Discussion
Share
your
ideas
and
your
life
with
your
patterner!
Discussion
EXAMPLE:
I
think
_____________
is
too
difficult/easy/complex/interesting
to
__________.
I
think
_____________
enough
to
___________________.
I
hope
scientists
will
invent
a
_________________
to
________________.
I
think
we
need
to
find
a
____________
to
_________________.
I
________________________so
as
to
________________.
1.
recycle
vt.回收利用；再利用
recycle
bin
回收站
internal
recycle
内部循环
Language
points
塑料袋每年会导致100,000海洋动物死亡，因为这些动物常常把塑料袋误当食物吞下去，因此，如果你一定要用塑料袋，一定要在超市垃圾箱回收塑料袋。
Plastic
bags
cause
the
deaths
of
100,
000
Marine
animals
each
year
when
the
animals
mistake
them
for
food,
so
if
you
must
use
them,
always
recycle
them
in
the
bin
at
your
supermarket.
2.
lack
n.缺乏；短缺
vt.没有；缺乏
for
lack
of
have
no
lack
of
lack
sth.
lack
of
faith
Language
points
因缺乏…;因缺少…
不缺乏；不缺少
缺乏某物
不信教，不信神
of
The
flowers
failed
for
lack
_______
rain.
Lack
_______
sleep
blunted
her
thinking.
They
_______
the
force
of
conviction.
Language
points
of
lack
3.
otherwise
adv.否则；要不然
or
otherwise
otherwise
than
and
otherwise
Language
points
或相反；或其反面
不像；除…外
等等
or
Only
by
saving
will
you
have
money
in
the
bank
_____
otherwise
invested.
I
know
him
otherwise
_____
in
business.
In
the
kindergarten,
the
children
learn
singing,
dancing,
drawing
_____
otherwise.
Language
points
than
and
不合理的；不理智的
无法控制
无容置疑
无法达到；超出…的能力之外
4.
beyond
prep.在更远处；超出
Language
points
无与伦比
出乎意料
超出…范围
beyond
all
reason
beyond
control
beyond
doubt
beyond
the
reach
of
beyond
words
beyond
challenge
beyond
expectation
beyond
the
scope
of
beyond
难以言表
老师教我们超越我们原以为只能够到达的地方。
The
teacher
teaches
us
to
push
beyond
where
we
thought
we
could
go.
You
cannot
judge
any
man
beyond
your
knowledge
of
him,
and
how
small
is
your
knowledge.
Language
points
你判断一个人不可能超过你对他的了解，而你的了解又是多么肤浅。
气流
上升气流
电池电流
流动资产
current
adj.当前的；现在的
n.水流；电流；思潮
Language
points
air
current
ascending
air
current
battery
current
current
asset
current
在这个系统中，当前不存在任何瓶颈。
There
are
no
current
bottlenecks
at
all
on
this
system.
Language
points
对…足够
绰绰有余
睡眠充足
充要条件
6.
sufficient
adj.足够的，充足的
Language
points
be
sufficient
for
more
than
sufficient
sufficient
sleeping
necessary
and
sufficient
condition
sufficient
一般说来，5天的课堂培训对于一个已熟悉企业开发环境的应用程序开发者来讲是足够的。
Typically,
five
days
of
classroom
training
is
sufficient
for
application
developers
who
are
already
familiar
with
enterprise
application
development.
Language
points
你们将不得不和越来越多的精神疾病以及其他各种各样的问题作斗争。
You
will
have
to
deal
with
higher
rates
of
mental
illness
and
every
other
kind
of
problem.
He
isn’t
a
mental
patient
but
he
is
always
mental
hospital,
because
he
is
a
doctor.
Language
points
他不是一名精神病人但他经常在精神病医院，因为他是一名医生。
7.
figure
out
弄懂；弄清楚；弄明白
Language
points
Maybe
we'll
figure
_______
how
to
do
something
different.
out
计划
谋取，企图获得
算进；包括进
figure
on
figure
for
figure
in
Exercise
1.The
space
shuttle(航天飞机)
was
created
as
a
reusable
launch
vehicle
_________astronauts
and
other
equipment
into
space
and
back
again.
The
shuttle
looks
like
an
ordinary
plane
but
it
has
a
cargo
bay(货仓)
that
is
large
enough
_________
a
satellite.
2.Space
probes(航天探测器)
are
often
sent
to
places
that
are
too
far
away
or
too
dangerous
for
a
human
________
foot
in.
For
example,
in
1977,
the
Voyager
I
space
probe
was
sent
_______
pictures
of
the
planets
Saturn
and
Jupiter.
to
carry
to
hold
to
set
to
take
hold
build
provide
set
carry
select
fall
take
launch
live
Exercise
3.The
International
Space
Station
was
too
big
_________
on
Earth
and
_________
into
space,
so
different
countries
worked
together
and
built
about
100
modules(分离舱).
Afterwards,
these
modules
were
joined
together
in
space
_________
living
quarters,
laboratories,
and
other
equipment
for
astronauts
_________
for
months.
to
build
to
launch
to
provide
to
live
hold
build
provide
set
carry
select
fall
take
launch
live
Exercise
4.As
the
first
woman
_____________
to
make
a
trip
into
space,
Tereshkova
felt
lucky
and
proud.
When
the
great
day
finally
came,
she
was
almost
too
excited
_________
asleep!
to
be
selected
to
fall
hold
build
provide
set
carry
select
fall
take
launch
live
Summary
summary
Knowledge
points:
recycle,
lack,
otherwise,
beyond,
current,
sufficient,
figure
out
Others:
What
powers
a
spacecraft
Infinitives
Homework
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新人教版（2019）英语必修三
Unit
4
Period
3
Discovering
Useful
Structures教学设计
课题
Period
3
Discovering
Useful
Structures
单元
Unit
4
Space
Exploration
学科
English
教材分析
During
this
period,
the
class
will
focus
on
discovering
useful
structures.Students
are
expected
to
get
insight
into
knowledge
about
infinitives.The
teachers
would
inspire
students
to
practice
the
functions
of
infinitives.
教学目标与核心素养
Learn
and
master
the
key
words
and
phrases.Train
the
students’
ability
to
use
infinitives.Enable
the
students
know
about
the
meaning
and
functions
of
infinitives.Encourage
students
to
learn
more
about
space
exploration.
重点
Master
the
usage
of
key
words
and
phrases.Improve
the
students’
ability
to
use
infinitives.
难点
Let
students
master
how
to
use
infinitives.
教学过程
教学环节
教师活动
学生活动
设计意图
Daily
routine
Step
1
Warm
upT
greets
the
whole
class
as
usual.
Activate
Ss
and
remind
them
to
concentrate.
Step
2
Preview
checkT
asks
Ss
the
meaning
of
words,
phrases
and
knowledge
points
learnt
last
lesson.
Students
answer
the
questions
loudly
together.
Check
the
teaching
situation
of
last
lesson
quickly.Help
Ss
consolidate
the
knowledge
points.
Lead-in
Step
3
What
powers
a
spacecraft Spacecraft
have
instruments
to
help
them
take
pictures
and
collect
information
in
space.
But
they
need
electricity
to
power
those
instruments
and
send
the
information
back
to
Earth.
Where
does
the
power
come
from A
spacecraft
generally
gets
its
energy
from
at
least
one
of
three
power
sources:
The
Sun,
batteries
or
unstable
atoms.
To
choose
the
best
type
of
power
for
a
spacecraft,
engineers
consider
where
it
is
traveling,
what
it
plans
to
do
there
and
how
long
it
will
need
to
work.How
many
“to”
in
the
text Do
you
know
their
meanings
and
functions
After
getting
the
information
and
the
meaning
of
the
new
words,
answer
the
questions.
Use
pictures
to
catch
Ss’
attention.Expand
their
horizons
and
spark
their
interest.
Step
4
New
wordsT
explain
the
meaning
of
the
new
words,
and
ask
Ss
to
translate
the
meaning
of
the
whole
sentence.Please
call
before
you
come,
otherwise
we
might
not
be
home.
They
charged
the
accident
to
the
lack
of
experience
These
materials
can
be
recycled
into
other
packaging
products.
It
goes
beyond
our
research.
Current
success
does
not
mean
success
in
the
future.
We
have
provided
sufficient
information
to
you
on
this
issue.
Let
them
figure
out
the
answer
without
you.
Teach
the
meaning
of
new
words.
Step
5
Let’s
playT
choses
Ss
to
answer
the
questions.Be
modest,
_________
you
will
lag
behind.
_______
of
food
and
supplies
caused
disaffection
among
the
soldiers.They
_________
empty
tins
so
as
to
use
the
metal.
The
contents
go
far
_______
the
title.
Even
though
they
are
a
step
in
the
right
direction,
our_______
processes
are
not
enough.
They
had
no
evidence
_______
to
hold
him.Father
is
trying
to
figure
______
his
tax.keys:1.
otherwise
2.
lack
3.
recycle
4.
beyond
5.
current
6.
sufficient
7.
out
Familiarize
the
new
wordsClear
the
tackle
of
next
step.
Useful
Structures
Step
6
Let’s
learnTeacher
shows
the
questions
and
asks
students
to
answer.Look
at
the
following
sentences
and
focus
on
the
italicized
infinitives.
In
pairs,
discuss
their
functions
and
meanings.I
trained
for
a
long
time
to
fly
airplanes
as
a
fighter
pilot.As
we
all
know,
an
astronaut
needs
to
be
healthy
and
calm
in
order
to
work
in
space.First
of
all,
you
must
be
intelligent
enough
to
get
a
related
college
degree.Some
scientists
were
determined
to
help
humans
realize
their
dream
to
explore
space.On
12
April
1961,
Yuri
Gagarin
became
the
first
person
in
the
world
to
go
into
space.
Rewrite
the
sentences
using
infinitives
or
“in
order
to/so
as
to
+
do”.
Change
the
italicized
parts
accordinglyIn
2003
Yuri
Malenchenko
became
the
first
person
who
got
married
in
space..
In
space,
astronauts
collect
all
dirty
water
so
that
it
can
be
recycled
for
later
use.Mankind
has
always
been
curious
about
the
universe
and
many
people,
have
dreamt
that
one
day
they
would
fly
into
space.Astronauts’
bones
and
muscles
can
get
very
weak
in
space
due
to
the
lack
of
gravity,
so
they
need
to
exercise
every
day,
which
will
help
them
stay
healthy.Astronauts
have
to
use
tape
to
stick
everything
down
while
working
in
space
because
everything
would
float
off
otherwise.During
a
spacewalk,
astronauts
have
to
move
slowly
so
that
they
can
keep
their
bodies
under
control.Keys:1.
In
2003
Yuri
Malenchenko
became
the
first
person
to
get
married
in
space.
2.
In
space,
astronauts
collect
all
dirty
water
so
as
to
recycle
for
later
use.3.
Mankind
has
always
been
curious
about
the
universe
and
many
people
to
dream
that
one
day
they
would
fly
into
space.
4.
Astronauts’
bones
and
muscles
can
get
very
weak
in
space
due
to
the
lack
of
gravity,
so
they
need
to
exercise
every
day
in
order
to
help
them
stay
healthy.
5.
Astronauts
have
to
use
tape
to
stick
everything
down
to
work
in
space
because
everything
would
float
off
otherwise.6.
During
a
spacewalk,
astronauts
have
to
move
slowly
so
as
to
keep
their
bodies
under
plete
the
passage
with
the
correct
forms
of
the
verbs
in
brackets.Sending
people
to
other
planets
or
even
beyond
the
solar
system
is
not
an
easy
goal
_________(achieve).
One
of
the
problems
is
that
the
trip
would
take
over
two
years
_________(get)
to
the
closest
planet,
Mars,
and
back.
Although
light
is
the
fastest
thing
_________(know)
in
the
universe,
it
could
take
more
than
four
years
to
reach
the
nearest
star
system.
Will
scientists
figure
out
a
way
_________(store)
sufficient
food
and
water
for
the
long
journey
Is
it
possible
to
travel
faster
than
light
No
one
knows
the
answers
yet.
However,
space
scientists
never
give
up.
They
are
experimenting
with
growing
crops
in
space
so
as
_______(help)
astronauts
get
enough
food
on
longer
journeys
through
space.Keys:1.
to
achieve2.
to
get3.
to
know4.
to
store5.
to
help
Do
the
practice
and
express
the
reasons.
Familiarize
students
with
key
structures.Exercise
students’
structures
using
skills.
Step
7
Infinitives1.做主语-不定式置于句首To
get
there
by
bike
will
take
us
half
an
hour.To
make
up
for
lost
time
is
not
possible.To
lean
out
of
the
window
is
dangerous.To
save
money
now
seems
impossible.2.
做主语-用it作形式主语，把真正的主语不定式置于句后It's
our
duty
to
take
good
care
of
the
old.
How
long
did
it
take
you
to
finish
the
work
It
seemed
impossible
to
save
money.3.
作宾语I
happen
to
know
the
answer
to
your
question.The
question
is
how
to
put
it
into
practice.I
find
it
difficult
to
learn
English
well.4.
作补语Father
will
not
allow
us
to
play
on
the
street.We
believe
him
to
be
guilty.The
book
is
believed
to
be
uninteresting.5.
作定语Scientists
were
determined
to
help
humans
realize
their
dream
to
explore
space.On
12
April
1961,
Yuri
Gagarin
became
the
first
person
in
the
world
to
go
into
space.Sending
people
to
other
planets
or
even
beyond
the
solar
system
is
not
an
easy
goal
to
achieve.Jessie
got
a
new
toy
to
play
with.She
has
no
friend
to
depend
on.6.
作状语Scientists
work
hard
to
find
out
the
secrets
of
the
universe.As
we
all
know,
an
astronaut
needs
to
be
healthy
and
calm
in
order
to
work
in
space.You
must
be
intelligent
enough
to
get
a
related
college
degree.I’m
afraid
the
whole
process
is
too
complicate
to
explain
in
a
few
words.We
were
surprised
to
find
that
he
had
already
left.PracticeThe
driver
failed
________(see)
the
other
car
in
time.He
feels
it
his
duty
_________(help)
the
poor.It
is
difficult
for
us
_________(finish)
writing
the
composition
in
a
quarter
of
an
hour.It's
a
great
honor
___________(invite)
to
Mary's
birthday
party.There
is
nothing
_______(do)
now.keys:
to
seeto
helpto
finishto
be
invitedto
doLet’s
play1.
Q:
Why
is
Yang
Liwei
famous
in
China A:
Because
he
is
__________________________________________________（第一个进入太空的中国宇航员）2.
Q:
How
do
you
feel
about
the
film
2001:
A
Space
Odssey A:
I’m
afraid
the
film
is
__________________________________________________（太长太乏味而无法看完）3.
Q:
Why
was
the
Russian
space
station
Mir(和平空间号)
brought
down
out
of
orbit A:
One
of
the
reasons
is
that
Mir
was
too
old
and
__________________________________________________（不再是安全的居所）4.
Q:
Would
you
like
to
travel
into
space
one
day A:
Yes,
and
I
want
to
become
__________________________________________________（登录火星的第一个中国人）5.
Q:
Could
you
provide
a
simple
introduction
to
how
space
rockets
work A:
I’m
afraid
the
whole
process
is
__________________________________________________（太复杂了，无法用几句话解释清楚）keys:
the
first
Chinese
astronaut
to
go
into
space.t
too
long
and
too
boring
to
finish.no
longer
to
be
safe
to
live.the
first
Chinese
to
step
onto
Mars.too
complex
to
explain
in
a
few
words.
Students
learn
the
functions
of
infinitives
and
read
sentences.
Get
the
useful
structures.
Step
8
DiscussionTeacher
shows
the
topic
and
gives
students
examples
to
discuss.Share
your
ideas
and
your
life
with
your
patterner!EXAMPLE:I
think
_____________
is
too
difficult/easy/complex/interesting
to
__________.I
think
_____________
enough
to
___________________.I
hope
scientists
will
invent
a
_________________
to
________________.I
think
we
need
to
find
a
____________
to
_________________.I
________________________so
as
to
________________.
Use
what
they
have
learnt
to
discuss
in
groups.
Voice
their
opinions.Practice
their
team
spirit.Practice
their
thinking
skill
and
imagination.Practice
their
speaking
and
listening.
Step
9
Language
pointsT
explains
the
language
points
and
makes
some
exercise.recycle
vt.回收利用；再利用recycle
bin
回收站internal
recycle
内部循环Plastic
bags
cause
the
deaths
of
100,
000
Marine
animals
each
year
when
the
animals
mistake
them
for
food,
so
if
you
must
use
them,
always
recycle
them
in
the
bin
at
your
supermarket.塑料袋每年会导致100,000海洋动物死亡，因为这些动物常常把塑料袋误当食物吞下去，因此，如果你一定要用塑料袋，一定要在超市垃圾箱回收塑料袋。lack
n.缺乏；短缺
vt.没有；缺乏for
lack
of
因缺乏…;因缺少…have
no
lack
of
不缺乏；不缺少lack
sth.
缺乏某物lack
of
faith
不信教，不信神The
flowers
failed
for
lack
of
rain.
由于缺少雨水，花凋谢了。Lack
of
sleep
blunted
her
thinking.
缺少睡眠使她的思想变得迟钝。They
lack
the
force
of
conviction.他们缺乏信念的力量。otherwise
adv.否则；要不然or
otherwise
或相反；或其反面otherwise
than
不像；除…外and
otherwise
等等Only
by
saving
will
you
have
money
in
the
bank
_____
otherwise
invested.只有存钱你才能够在银行有存款或在其他方面进行投资。I
know
him
otherwise
_____
in
business.
在生意以外我也认识他的。In
the
kindergarten,
the
children
learn
singing,
dancing,
drawing
_____
otherwise.
孩子们在幼儿园里学唱歌、跳舞、画画等等。keys:
or;
than;
and
beyond
prep.在更远处；超出beyond
all
reason
不合理的；不理智的beyond
control
无法控制beyond
doubt
无容置疑beyond
the
reach
of
无法达到；超出…的能力之外beyond
words
难以言表beyond
challenge
无与伦比beyond
expectation
出乎意料beyond
the
scope
of
超出…范围The
teacher
teaches
us
to
push
beyond
where
we
thought
we
could
go.老师教我们超越我们原以为只能够到达的地方。You
cannot
judge
any
man
beyond
your
knowledge
of
him,
and
how
small
is
your
knowledge.你判断一个人不可能超过你对他的了解，而你的了解又是多么肤浅。current
adj.当前的；现在的
n.水流；电流；思潮air
current
气流ascending
air
current
上升气流battery
current
电池电流current
asset
流动资产There
are
no
current
bottlenecks
at
all
on
this
system.在这个系统中，当前不存在任何瓶颈。sufficient
adj.足够的，充足的be
sufficient
for
对…足够more
than
sufficient
绰绰有余sufficient
sleeping
睡眠充足necessary
and
sufficient
condition
充要条件Typically,
five
days
of
classroom
training
is
sufficient
for
application
developers
who
are
already
familiar
with
enterprise
application
development.一般说来，5天的课堂培训对于一个已熟悉企业开发环境的应用程序开发者来讲是足够的。figure
out
弄懂；弄清楚；弄明白figure
on
计划figure
for
谋取，企图获得figure
in
算进；包括进Maybe
we'll
figure
out
how
to
do
something
different.也许我们会想出如何做些不同的事。
Help
students
know
about
the
knowledge
points
deeper.Let
students
know
how
to
use
these
words
and
phrases.
Step
10
ExerciseT
asks
Ss
to
fill
the
gap
together.1.The
space
shuttle(航天飞机)
was
created
as
a
reusable
launch
vehicle
_________astronauts
and
other
equipment
into
space
and
back
again.
The
shuttle
looks
like
an
ordinary
plane
but
it
has
a
cargo
bay(货仓)
that
is
large
enough
_________
a
satellite.2.Space
probes(航天探测器)
are
often
sent
to
places
that
are
too
far
away
or
too
dangerous
for
a
human
________
foot
in.
For
example,
in
1977,
the
Voyager
I
space
probe
was
sent
_______
pictures
of
the
planets
Saturn
and
Jupiter.3.The
International
Space
Station
was
too
big
_________
on
Earth
and
_________
into
space,
so
different
countries
worked
together
and
built
about
100
modules(分离舱).
Afterwards,
these
modules
were
joined
together
in
space
_________
living
quarters,
laboratories,
and
other
equipment
for
astronauts
_________
for
months.4.As
the
first
woman
_____________
to
make
a
trip
into
space,
Tereshkova
felt
lucky
and
proud.
When
the
great
day
finally
came,
she
was
almost
too
excited
_________
asleep!keys:1.
to
carry
2.
to
hold3.
to
set
4.
to
take
5.
to
build6.
to
launch7.
to
provide
8.
to
live9.
to
be
selected10.
to
fall
Summary
and
Homework
Step
11
SummaryT
leads
Ss
to
have
a
summary
of
this
lesson.Language
pointsrecycle,
lack,
otherwise,
beyond,
current,
sufficient,
figure
outOthers:What
powers
a
spacecraftInfinitives
Follow
the
teacher’s
thinking
flow
and
read
the
words
and
phrases
loudly.
Consolidate
Ss’
knowledge.Form
knowledge
system.
Step
12
HomeworkFinish
the
exercises
on
your
exercise
book.
Take
notes.
Consolidate
Ss’
knowledge
and
prepare
for
the
following
lesson.
板书
Unit
4
Space
ExplorationPeriod
3
Discover
useful
structuresLanguage
pointsrecycle,
lack,
otherwise,
beyond,
current,
sufficient,
figure
outOthers:What
powers
a
spacecraftThe
Sun,
batteries,
unstable
atoms.Infinitives:As
we
all
know,
an
astronaut
needs
to
be
healthy
and
calm
in
order
to
work
in
space.On
12
April
1961,
Yuri
Gagarin
became
the
first
person
in
the
world
to
go
into
space.Father
will
not
allow
us
to
play
on
the
street.It
seemed
impossible
to
save
money.
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