Unit 4 Topic 2 I'm excited about the things that will be discovered in the future.教材全解

中小学教育资源及组卷应用平台
Unit
4
Topic
2
I’m
excited
about
the
things
that
will
be
discovered
in
the
future.
一、重点词汇
display显示，显露；展示
screen屏幕；银幕
alien外星人；陌生的；外国的
outer
space外层空间
describe描述；形容；把……称为
astronaut宇航员
admire钦佩，羡慕
master掌握，精通；主人
dancer跳舞者，舞蹈演员
realize意识到，领会；实现
universe宇宙
solar
system太阳系
Roman古罗马的，古罗马帝国的
god上帝；神
diameter直径
storm风暴，暴（风）雨
gravity重力；引力
weigh重，有……重
generally一般地，通常
journey（尤指长途）旅行
limit限度，限定
excitement激动；令人激动的事
launch发射；发起；发行
beyond超过；除……之外
二、重点词组：
1.?be?used?for?+ving??????????????被用做……
2.?come?true??????????????????????实现
3.?It’s?said?that??????????????????据说
4.?during/in?one’s?life?某人一生
5.?be?known?as?以……（身份）而著名
6.?know/say?for?certain?确切知道/肯定地说
7.?all?the?time?一直、总是
8.?no?longer=not…any?longer?不再?(no?more,?not…any?more)
9.?as?long?as?只要
10.?as?far?as?就……，尽……
11.?make?a?great?contribution?对…作出巨大贡献
12.?the?rest?of?the?time?在其余地时间里
13.?at?any?time?在任何时候
三、重点句型：
1.Because?I’m?not?allowed?to?play?computer?games.
因为我不可以玩电脑游戏。
allow?“允许、准许”的意思。常用于以下几种形式：
(1)allow?+n./prep?如：?We?can’t?allow?such?a?thing.
我们不容许这种事情发生。
(2)?allow?sb.?to?do?sth?允许某人做某事。如：?She?allowed?me?to?go?fishing.她允许我去钓鱼。
(3)?allow?+doing?sth??允许做某事如：?We?don’t?allow?smoking?in?the?reading-room.我们不允许在阅览室吸烟。
(4)?be?allowed?to?do?sth???如：被允许做某事
The
students?are?allowed?to?play?games?on?the?play?ground?after?school.放学后学生们被准许在操场上做游戏。
2.?How?do?you?say?this?in?English???这用英语怎么说？
其意思与What’s?this?in?English相同。
3.?It’s?made?from?wood.??它用木材做的。
(1)?be?made?in????在……地方制造，后接表示地点的名词。
(2)?be?made?of????用……制造的，表示原材料未经化学变化，仍可看得出原材料。
(3)?be?made?from??用……制造的，表示原材料经过化学变化，已看不出其原样。
(4)?be?made?by????由（被）……（人）制作，后接表示人的名词或代词。
(5)?be?made?into??（某物）被制成……
(6)?be?made?up?of??由……组成??如：
The?TV?set?is?made?in?Japan.???这台电视机是日本生产的。
These?houses?are?made?of?stones.??这些房子是由石头建造的。
?Paper?is?made?from?wood.??????
纸是木头造的。
Was?this?cake?made?by?your?mother????
这蛋糕是你妈妈做的吗？
Metal?can?be?made?into?all?kinds?of?things.?金属可以制成各种各样的物品。
The?medical?team?is?made?up?of?ten?doctors.?这支医疗队由10位大夫组成。
4.?It’s?used?for?helping?us?to?improve?our?English.??
它用来帮助我们提高英语水平。
(1)?be?used?for+ving???be?used?to?do??（被）用来做……?
强调用途或作用
(2)be?used?as???????（被）作为……而用，强调被当作工具或手段来用。
(3)be?used?by????????被……使用，by后跟人/物，强调使用者。如:
Pens?are?used?for?writing.????
钢笔被用来写字。
Wood?is?used?to?make?paper.????
木材被用来造纸。
English?is?used?as?a?foreign?language?in?China.英语在中国被当作外语使用。
Recorders?are?often?used?by?English?teachers.?英语老师经常使用录音机。
5.?People?are?surprised?at?the?rapid?development?of?robots.人们为机器人的飞速发展感到惊讶。句子中be?surprised?at…是一个系表结构，表示“对……感到惊讶”。而be?surprised?by…是一个被动语态形式，表示“被……所惊讶”。如：I?am?surprised?at?you.??
我对你的举动感到诧异。
The?manager?was?surprised?by?what?he?saw?on?the?computer.那位经理被眼前出现在电脑屏幕上的东西所惊讶。
6.?They?will?no?longer?want?to?be?our?servants,?but?our?masters.它们将不再愿意做我们的人，而要做我们的主人。
no?longer（通常在动词前），not…any?longer;?not…any?more（用于非正式文体中）都可表示“（过去曾……）现在不再……”?如：
She?no?longer?lives?here.
She?doesn’t?live?here?any?longer(或?any?more).她不在这儿住了。（过去她曾住这儿）
7.?This?method?worked?well?at?night?as?long?as?the?weather?was?good?and?the?stars?could?be?seen.
在夜间只要天气晴朗，能看见星星，这种方法就能很好地发挥作用。
work?well??有效??????????as?long?as??只要
日常交际用语：
What’s?it?made?of?from????????
When/where?was?it?made?
It?was?invented?in?1879.???????
What?will?our?future?be?like?
I?hope?your?dream?will?come?true.
四、重点语法：
1、?一般过去时的被动语态
谓语部分的基本形式是be的过去式was/were+及物动词的过去分词。如：
When?was?it?made???它是什么时候制造的？
It?was?made?in?1980.它是1980年制造的。
When?was?the?digital?camera?invented??数码像机是什么时候发明的？
It?was?invented?in?1975.???
它是1975年发明的。
2、时间前所用介词的速记歌
年月周前要用in，日子前面却不行。?
遇到几号要用on，上午下午又是in。
要说某日上下午，用on换in才能行。?
午夜黄昏须用at，黎明用它也不错。
at也用在时分前，说“差”可要用上to。
说“过”只可使用past，多说多练牢牢记，莫让岁月成蹉跎。
五、知识点解析
Section
A
一、主题课文翻译
SectionA-1a
Kangkang:
Hi,
Maria!
A
wonderful
movie
will
be
shown
tonight.
Shall
we
go
to
watch
it?
康康：嗨，马丽亚！今晚有一部很棒的电影要上映。我们一起去看怎么样？
Maria:
Great!
What's
it
about?
马丽亚：好呀！是关于什么的？
Kangkang:
It's
about
life
in
space.
康康：关于太空生活的。
Maria:
That
sounds
exciting.
马丽亚：听起来很不错。
Kangkang:
Yes.
All
the
people
travel
by
spaceship
in
the
movie,
and
they
can
visit
planets
like
Mars.
康康：是的。电影里的人们都坐着太空飞船移动，他们还可以到火星这样的的星球上去。
Maria:
Really?
Kangkang,
do
you
think
people
will
live
on
Mars
in
the
future?
马丽亚：是吗？康康，你觉得以后人们会住在火星上吗？
Kangkang:
Yes,
I
think
we
will
live
in
space
one
day.
康康：嗯，我觉得有一天我们都会在太空生活。
Houses,
schools
and
hospitals
will
be
built
on
Mars.
房子、学校和医院都会建在火星上。
We
will
be
able
to
do
anything
that
can
be
done
on
the
earth.
在地球上能做的事也能在火星上做。
Maria:
What
fun!
I
can't
wait.
马丽亚：太有趣了！我等不及了。
二、知识精解
1.
Do
you
think
people
will
live
on
Mars
in
the
future?
on
Mars在火星上，不加冠词the.
2.
We
will
be
able
to
do
anything
that
can
be
done
on
the
earth.
be
able
to
do
能够做某事
be
able
to与can
意思相当，can没有将来时和完成时，因此在shall,
will,
have等后面，要用be
able
to.
3.
What
fun!
多么有趣啊。
fun
此为不可数n.，“有趣的事”，adj.
有趣的
What
a
pity!
多遗憾啊！
What
a
shame!
多遗憾(可惜)啊！
4.
What
will
be
built
on
Mars
according
to
Kangkang?
according
to
根据
5.
I
won’t
believe
there
are
aliens
until
I
see
them
myself.
(1)
think、believe、suppose(认为)、imagine、expect(期望)等词后接的宾语从句含有not等否定词，且主语为第一人称时，
该否定应移至主句，即否定主句的谓语动词。
Eg:
I
don’t
think
it
will
rain
tomorrow.我认为明天不会下雨。
当主句的主语是第二、三人称时，否定式一般不转移。
Eg:
He
supposes
they
won’t
win
the
game.
注意：改写反意疑问句时，当主句的主语为第一人称时，反意疑问句的主、谓要与从句一致。如果主句的主语是第二、第三人称时，反意疑问句的主谓与主句一致。
Eg:
He
thinks
he
can
make
it,
doesn’t
he?
他认为他能办到，是吗？
I
don’t
think
it
will
rain
tomorrow,
will
it?
我认为明天不会下雨，是吗？
not
until直到...才，时态上主将从现，主过从过
Section
B
一、主题课文翻译
SectionB-1a
Kangkang:Maria,
have
you
heard
the
news
on
TV
about
the
space
flight
to
Mars?
康康：马丽亚，你有没有听电视上关于飞往火星的新闻呀？
Maria:No,
I
haven't.
Who
will
take
part
in
the
space
flight?
马丽亚：还没有。谁会参与太空飞行？
Kangkang:Astronauts
from
China,
the
United
States
and
Russia.
They
will
travel
into
space
and
discover
something
new
about
Mars.
I
really
admire
them.
I'd
like
to
be
an
astronaut
when
I
grow
up.
康康：中国、美国和俄罗斯的宇航员。他们将飞往太空，探索火星。我真羡慕他们。我长大以后相当宇航员。
Maria:It's
really
cool.
However,
I
think
you
should
first
master
some
basic
computer
skills.
马丽亚：很好。不过我觉得你应该先掌握一些基础的电脑知识。
Kangkang:Sure.
Maria,
what
are
you
going
to
be?
康康：当然。马丽亚，你以后想做什么？
Maria:Mm,
I
am
not
sure.
Sometimes
I
want
to
be
a
dancer,
but
I
think
I'm
going
to
be
a
scientist
in
the
future.
马丽亚：嗯，不太确定。有时候我想当个舞蹈家，但我觉得我以后会是科学家。
Kangkang:Why?
I
think
you
dance
very
well.
康康：为什么？我觉得你舞跳的很好。
Maria:Yes,
I'm
sure
I
can
perform
ballet
on
the
stage
in
the
future.
But
I
prefer
science
to
dance.
It
is
my
favorite
subject
in
school.
I'm
excited
about
the
things
that
will
be
discovered
in
the
future.
马丽亚：嗯，我相信将来能在舞台上表演芭蕾。但跟芭蕾相比，我更喜欢科学。这是我在学校最喜欢的一科。我很期待以后会有什么新发现。
Kangkang:That's
wonderful!
Let's
work
hard.
Then
our
dreams
will
be
realized.
康康：太好了！我们一起努力实现梦想。
二、知识精解
Maria,
have
you
heard
the
news
on
TV
about
the
space
flight
to
Mars?
on
TV
在电视上
on
the
Internet
on
the
radio
在收音机上
2.
But
I
prefer
science
to
dance.
prefer
A
to
B
prefer
doing
A
to
doing
B
prefer
to
do
A/doing
A
3.
A
UFO
is
only
met
by
chance
and
disappears
rapidly.
by
chance=by
accident
偶然
Section
C
一、主题课文翻译
SectionC-1a
What
do
you
know
about
Mars?
What
does
it
look
like?
Mars
is
the
fourth
planet
from
the
sun
in
our
solar
system
and
is
named
after
Mars,
the
Roman
god
of
war.
Its
diameter
is
53%
as
wide
as
that
of
the
earth.
Mars
goes
around
the
sun
at
a
distance
of
about
228
million
kilometers.关于火星你了解多少？火星是什么样的？火星是太阳系中距离太阳第四的星球，以罗马战神的名字“Mars”命名。火星的直径是地球的53%。火星在距离太阳2.28亿千米的轨道上绕行。
You
can
tell
which
planet
is
Mars
because
it
is
bright
red
in
the
night
sky.
It
looks
like
a
red
and
orange
ball.
It's
very
beautiful.
But
during
spring
and
summer,
the
surface
of
Mars
is
covered
by
strong
storms.火星在夜空中是明亮的红色，很好识别。它看起来像一个橘红色的大球。很漂亮。但是春夏季时，火星表面覆盖有厚厚的云层。
The
gravity
on
the
surface
of
Mars
is
about
two-fifths
as
strong
as
it
is
on
the
earth.
So
a
person
who
weight
90
kilos
on
the
earth
weights
only
36
kilos
on
Mars.
The
temperature
on
Mars
is
between
-138℃
and
28℃.
The
air
has
only
0.13%
oxygen.火星表面的重力大概是地球的1/5。所以在地球上有90公斤重的人在火星上只有36公斤。火星上的温度大约在-138℃
到
28℃之间。空气中含氧量只有0.13%。
It
takes
a
spaceship
about
eight
months
to
reach
Mars
from
the
earth
when
the
two
planets
are
closest
to
each
other.
Scientists
are
still
searching
for
more
information
about
Mars.火星与地球相距最近时，宇宙飞船需要八个月才能从地球抵达火星。科学家们还在探索更多关于火星的信息。
二、知识精解
1.
Mars
is
the
fourth
planet
from
the
sun
in
our
solar
system
and
is
named
after
Mars,
the
Roman
god
of
war.
name
A
after
B
A以B命名
A
be
named
after
B
A以B命名（被动形式）
2.
Its
diameter
is
53％
as
wide
as
that
of
the
earth.
A
be
twice/
three
times/
half
/
％…
as
…
as
B.
A是B的…倍/百分比
as
well
as
和
as
long
as
只要
as
soon
as
一…
就…
as
…
as
possible
越…
越好
3.
Mars
goes
around
the
sun
at
a
distance
of
about
228
million
kilometers.
at
a
distance
of
＋具体距离
离……远的地方
in
the
distance
“在远处”
4.
…it
is
bright
red
in
the
night
sky.
bright
red
鲜红色
light
red
淡红色
dark
red
深红色
5.
…
the
surface
of
Mars
is
covered
by
strong
storms.
be
covered
by/with
被……覆盖
cover
with
用……覆盖
6.
So
a
person
who
weighs
90
kilos
one
earth
weights
only
36
kilos
on
Mars.
weigh
v.
重达……
weight
n.
重量
拓展
height
n.
高度
7.
It
takes
a
spaceship
about
eight
months
to
reach
Mars
from
the
earth
when
the
two
planets
are
closest
to
each
other.
(1)
It
takes
sb.…
to
do
sth.
sb.
spend…
in
doing
sth.
/
on
sth.
sb.
pay
…for
sth
sth.
cost
sb.
…
to
do
sth.
(2)
be
close
to
靠近
8.
Scientists
are
still
searching
for
more
information
about
Mars.
search
for
寻找
9.
It
has
been
two
days
since
we
landed
on
Mars.
主句（现在完成时）＋since
＋从句（一般过去时）
It’s
...
＋since
＋从句（一般过去时）
10.
Generally,
……
Generally
＝
in
general＝
generally
speaking
大体来说
11.
So
we
had
a
shower
every
six
weeks.
have/take
a
shower
淋浴
have/take
a
bath
泡澡
12.
We
had
to
limit
the
use
of
water
during
these
days.
limit
v.
限制
n.
界限，限制
limited
adj.
有限的
limited
space/time
有限的空间/时间
There
is
no
limit
to
do
sth.
13.
We
will
spend
another
seven
hundred
and
sixty-three
days
on
Mars.
another
＋数词＋名词＝数词＋more
＋名词。如:
Take
me
another
3
books＝Take
me
3
more
books
Section
D
一、主题课文翻译
SectionD-1a
Scientists
think
that
there
has
been
life
on
the
earth
for
millions
of
years.
However,
we
haven't
found
life
on
other
planets
yet.
The
earth
is
a
planet
and
it
goes
around
the
sun.
And
there
are
seven
other
planet
that
also
go
around
the
sun.科学家认为生命已经在地球上存在了数百万年。但是，人类还没有在其他星球上发现生命。地球是行星，围绕太阳运行。还有另外七个行星也绕着太阳运行。
The
sun
and
its
planets
are
called
the
solar
system.
The
solar
system
is
a
small
part
of
the
universe.太阳以及围绕它运行的行星被称为太阳系。太阳系只是宇宙的一小部分。
Scientists
have
launched
many
spaceships
to
explore
other
planets
in
the
solar
system.
Some
spaceships
have
gone
beyond
the
solar
system.
However,
no
one
has
discovered
any
life
in
space
yet.科学家们发射了很多宇宙飞船，去探索太阳系中的其他星球。有些宇宙飞船已经飞出了太阳系。但是，还没有人在太空中发现任何生命。
Why
has
no
one
from
other
planets
sent
us
a
message?
Have
they
tried
to
send
information
to
us?
With
so
many
stars
in
space,
are
we
alone,
or
is
there
life
on
other
planets
in
space?为什么其他星球上没有任何人给我们发信息呢？他们有试过给我们发信息吗？太空中有这么多行星，我们是唯一的生命吗？还是其他星球上也有生命？
二、知识精解
1.
Scientists
think
that
there
has
been
life
on
earth
for
millions
of
years.
on
earth
在地球上，究竟
on
the
earth
在地球上
eg:
Why
on
earth
didn’t
you
tell
me
the
truth?
你到底为什么不跟我说实话？
What
on
earth
do
you
mean?
你到底是什么意思？
There
are
millions
of
living
things
on
the
earth.
世界上有数以百万计的生物。
2.
However,
we
haven’t
found
life
on
other
planets
yet.
on
other
planets在其他的星球
3.
Scientists
have
launched
many
spaceships
to
explore
other
planets
in
the
solar
system.
launch
v.
发射(卫星，导弹，火箭等)
=
send
up
n.
发射，下水（船），游艇，摩托艇
4.
Some
spaceships
have
gone
beyond
the
solar
system.
beyond
超出，越过
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