ELEMENT2 lesson5,6

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ページ1:

lesson5 2
On a clear night, you can look at
the stars in the sky. Even though
you cannot see it, you are also looking
at the largest junkyard in the solar
system. Placed higher than the
highest clouds but much closer than
the moon, the junkyard stretches to
20,000 miles overhead. There are
tens of millions of pieces of junk
there. Some are rocks and dust
from passing comets, but most are
manmade and are called "orbital
debris."
~ The Largest Junkyard in the
n
Solar System~
最高より高い
と
近くに位置し、今のゴミ捨て場は
頭上2万マイルに広がっている。
③晴れた夜には Onacleor
Most of the junk comes from
largy satellites and rockets that fell
apart after they stopped working.
Together, all the space junk would
weigh about 11 million pounds
on the Earth, or more than 3,000
cars. The largest picce is a part of
a rocket about the size of a family
car. The smallest piece is smaller
than your fingernail. Most pieces
fly through space at more than 20
times the speed that sound travels
on the Earth. A small stone in orbit
around the Earth can have as much
energy as a bowling ball going 500_
miles per hour, or a car going 30
miles per hour.
How the Junkyand Fermedi
①ほとんどのかけらは地球上で音が
伝わる速さの20倍以上の速度で
宇宙空間を飛行している。
地球の周回軌道上の小さな石は
時速500マイルで進むボーリングの
ポール、つまり時速30マイルで進む
自動車と同じくらいのエネルギーを
持つ。
回合わせると Together
☆
lesson5 ③
The junkyard is a serious problem
for the future of space travel. You
have thousands of satellites in orbit
all the time. Without tracking
debris, you cannot avoid collisions.
In_1983, small crack appeared
in one window of the space shuttle
Challenger while it was in space.
That was caused by a small, orbiting
piece of paint. If the shuttle had
been struck by a larger piece of junk,
the astronauts might have been in
danger. When the space shuttle
Endeavour returned to the Earth,
its body had small holes from space
garbage hitting it. Two satellites
also have had to change direction
to avoid collisions with big pieces of
junk.
a-void
chal-leng-er
en-deav-our
col-li-sion
~A Serious Problem in Spacem
◎ディリを追跡することなく、あなたが
衝突を避けることはできません。
③もレシャトルは大きなゴミくずにぶつかって
いたら、宇宙飛行士が危険にさらされて
いた可能性があります。
2
にも大きな衝
するために方向を変更しなければならない
ことがあった。
②常に all the time
①危険な状態
© orbit
@
have been in danger
→ planet, sun,or moon
return toaplace or situation
small hales hitting
→
=宇宙ゴミがぶつかったこと
②の説明
宇宙ごみ
(宇宙にいるあいだに小さな塗料のかけら)
が原因となって窓の1つに
(小さなひび)が現れた。
☆sat-el-lite
*en-er-gy

ページ2:

lesson 545
The US Space Surveillance
Network and NASA work together.
to keep track of the largest pieces of
space junk. When the shuttle is in
orbit, for example, their attention is
on nearby junk that might get in the
way. If there is even a small chance
of a collision, then the shuttle speeds
up while changing direction. There
are about 18,000 pieces of garbage
larger than four inches. The Space
Surveillance Network keeps a list
of all these pieces, with dozens of
toloscopos and antonnas on the
Earth and in space to watch them.
Because all tho pieces are in motion
all the time, keeping track of them
is difficult.
keeping Track of Space Janky
The scientists have to know two
things: where the garbage is now,
and where it is going to be in the
future. The prediction of direction
is not simple because the junk can
move north or south, east or west,
and up or down. They are always
looking about four days into the
future, tracking objects which might
come close. Scientists cannot keep
track of them all, however. Instead
of watching each piece one by one,
scientists watch one area of sky
and count the number of pieces
that pass overhead. With that
small measurement, they can use a
computer program to get a good idea
of what the whole sky looks like.
n
The Methods of Tracking Space
Debris n
①衝突の可能性が少しでもある場合
シャトルは方向を変えながらスピードを上げる。しかしながら、科学者たちにそれらを
すべて追跡できるわけではない。
⑤協力する work together
⑥地球上や中間にある何十もの監視用
望遠鏡やアンテナを使って作られる
a person, place, or activity
lines or connections
used to make faraway objects
@
ごみが将来どこにあるかということ
①=近づいてくるかもしれない物体
lesson 5⑥⑦
Like other environmental problems,
space junk will get worse without
careful attention. In the future,
pieces of junk will probably hit each
other, making even more trash. A
team of engineers has been at work
for years to develop a space cleanup
satellite. The technology for this,
however, is very expensive. Instead,
we should try to stop adding new
garbage. For example, engineers
are changing the way they build
spacecraft to minimize debris.
~ Measures to Deal With
Space Debris
環境問題と同様、宇宙のゴミ
は細心の注意を払わなければ
悪化することになる
②将、ゴミの
おきめくお互いに
衝突しってかに多くのゴミを作るだろう。
@と同じ意味
(Unlesy, we (pay/cartul
n
Oudd + adding
②えらぶ
A solution will require international
cooperation. Guidelines for how to
reduce the risk of space junk have
already been approved. Countries
have come together to address
environmental problems, and if
countries work together to control
the amount of trash sent into space,
we can probably keep the problem
under control.
International Cooperationn
四ゴミのリスクを減らす方法のための
福術ガイドラインはすでに承認されている。
ならび変ん
@2413 have (come together)
send sent
する
(esp) the problem(derson)
approve
woo
x
⭑[quideline
Bisle
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