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When was Michael’s last space mission? Which parts of the body weaken after a long time in space?
When was Michael’s last space mission? Which parts of the body weaken after a long time in space?
admin
2011-01-14
29
问题
When was Michael’s last space mission?
Which parts of the body weaken after a long time in space?
Interviewer: Good morning. Today, I’m going to be asking some questions to our guest, Michael Todd, an astronaut.
Michael: Good morning.
Interviewer: How long have you been an astronaut and how many missions have you flown?
Michael: I’ve been an astronaut since 2002 and I’ve flown on 3 missions.
The last one was
in January
and lasted for 9 days. Q11
Interviewer: What do you need to do to become an astronaut?
Michael: Well, you know I asked that very same question when I was a
kid and I actually went to an astronaut and asked that question
and I got an answer that I think was a very good one, which is
basically stay in school. You study hard. You study
mathematics Q12
or science
so much that you really become a real expert in
that field and then you are valuable as someone who has a real
talent that can be used in a space program.
Interviewer: How much training do you have to go through?
Michael: Every two years or so there’s class of astronaut candidates
that come down to the Johnson Space Center. You go through
about
one year
of basic training courses. It’s actually a pretty Q13
exciting year, because it is an opportunity to learn all that you
can imagine about the space shuttle. You study every single
switch. You study what it does and what it means to flip that
switch, when are the right times to push it and when are the
wrong times to push it. After that, we get an assignment to fly
in space, and we spend another year just studying about that
particular space flight.
Interviewer: There’s been a lot of talk about sending people to Mars. What are the challenges of a manned mission to Mars?
Michael: The first challenge is constructing a spacecraft to get there.
The trip to Mars could take as long as a year. When you are in
space that long,
your muscles get kind of weak
because you Q14
haven’t been using them to walk around. You also need to find
ways to pack enough food, water and air. Those kind of challenges
are the sort of things that we are going to be studying
at the
International Space Station
in the near future to develop Q15
the things that we need to have in order to safely send people
to Mars and to bring them back.
Interviewer: How does it feel to wear a spacesuit?
Michael: I did my first space walk on my third flight. We were outside
for 6 hours, a little over 6 hours. The spacesuit is very big and
very awkward and in fact because you are outside where there
is no air and your spacesuit is providing you air, your spacesuit
is pressurised.
So it makes you sort of feel like a balloon.
Your Q16
arms end up way out to your side if you don’t do anything
about it. So you have to use some force to pull your arms in.
When you try to work with the
gloves
that we have, in order to Q17
keep your hands warm and safe from outside, the gloves have
to be thick—which means that there is no way that you could,
say, button your shirt, put on a belt, or come close to putting
on a wrist watch without dropping them. So they are big and
awkward to work in and we have to use special tools to make
it possible to get the job done. You can imagine that it can be
difficult to do and we train for a long time to get good at working
inside that suit. The suit is an incredible piece of equipment.
It keeps us safe at temperatures from minus 200 degrees
to plus 200 degrees. It keeps you safe from a place where there
is no air and where there is the possibility of
small particles
Q18
hitting you at very high speed like little bullets. Yet, it gives
you a good view outside and can provide life support for over
6 hours.
Interviewer: What’s the most fun part of being in space?
Michael: That’s an easy one. The best part for me was looking back at
the Earth. The colours of the Earth don’t quite come across in
a photograph. The depth of the colours are like gem stones.
There are ruby reds, and emerald greens, and sapphire blues.
The atmosphere is just a thin blue line. It cuts across the very
top of the planet, and in that line you can see all different
shades of blue, layers that go from midnight blue to turquoise
blue to almost white, it’s such a light blue. The
clouds
are so Q19
white that it is hard to look at them. They’re so bright that you
have to wear sunglasses to look at them or your eyes will just
close all on their own. Sunrises and sunsets are particularly
spectacular, because if you remember we are going around the
earth every
90 minutes
, which means we see a sunrise and 45 Q20
minutes later we see a sunset and 45 minutes later we see another sunrise.
Interviewer: Now, our next question comes from one of our listeners ...
选项
答案
(your/the) muscles
解析
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