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2024年3月30日发(作者：log4j2级别)
热点阅读30篇
1.
（
2020·
湖北
·
老河口市教学研究室三模）
As the coronavirus continues to spread
around the world, have you ever thought about what would happen if a virus spread in space?
In fact, spaceflight affects the human body in a number of ways, making viral infections
more likely. Once in space, for example, stress hormone (
荷尔蒙
) levels change. This will
cause your immune system to change as well. While astronauts might be used to having a
good immune system on Earth, they will get sick more easily in space.
At the same time, viruses like the flu or even coronavirus spread more easily in
microgravity (
微重力
) , such as on the International Space Station. The microgravity causes
particles (
微粒
) to stay in the air for a longer time and spread more easily. To prevent this,
spaceship need to be well-ventilated (
通风良好的
). Air filters (
空气过滤器
) are used to
remove particles.
In addition, scientists have found that some “sleeping” viruses will “wake up” because
of the stress of spaceflight. Studies have shown that viruses are more virulent (
有毒性的
) in
space, which could make treatment less effective.
Can astronauts do anything if they are infected with a virus? First, they should be
isolated (
隔离
) in their sleeping quarters (
睡眠舱
), Clark suggested. They also need to wear a
mask to stop the virus from spreading. Meanwhile, other astronauts can make cultures (
微生
物培养物
) of the virus to know which virus has infected their coworker and look for the right
treatment.
1
．
It’s easier for people to get sick in space because ________.
A
．
viruses get weaker in space
B
．
their hormone levels are low
C
．
their immune systems weaken
D
．
their immune systems stop working completely
2
．
The International Space Station can remove viruses by ________.
试卷第1页，共81页
A
．
changing its gravity
B
．
using air filters to remove particles
C
．
being regularly disinfected
D
．
carrying more oxygen
3
．
Which of the following is the true according to the passage?
A
．
Viruses can live longer in space than on Earth.
B
．
Viruses will “sleep” under zero stress.
C
．
More viruses will become active.
D
．
It takes less time to kill the viruses.
4
．
After being infected with a virus, astronauts need to ________.
a. sleep less often
b. be isolated
c. wear masks
d. wait for the body to repair itself
A
．
ab B
．
bc C
．
cd
5
．
The story mainly tells us about ________.
A
．
how astronauts stay healthy
B
．
how scientists study viruses in space
C
．
treatments for viruses in space
D
．
the increased danger of viruses in space
【答案】
1
．
C
2
．
B
试卷第2页，共81页
D
．
bd
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