四、完形填空
Space suits don't just make astronauts look cool. Without these
1 suits, astronauts wouldn't be able to leave their spaceship. That is to say, they wouldn't be able to
2 on the moon or work outside the Space Station.
Space is a
3 place for human beings. First, there is no air to breathe. Second, space also has high levels of radiation(辐射)—energy that can pass through our bodies and make us
4. Third, some parts of space are really cold
5 other parts are very hot. So astronauts could die in just a few seconds if they
6 outside their spaceship without their suits. With a space suit, though, astronauts can move around in space for several hours.
Space suits keep astronauts
7 sealed(密封的)inside. A backpack sends O₂ in to let astronauts breathe normally. At the same time, the CO₂
8 astronauts breathe out is sucked away(吸走). The suit also protects them from harmful radiation and fast - moving space dust.
9 the space suit is another suit that looks like a pair of tight pajamas(睡衣)with little pipes running through them. Water runs through these pipes to
10 astronauts because wearing a space suit can make astronauts very hot!
(
B
) 1. A. private
B. special
C. plastic
D. cheap
(
B
) 2. A. run
B. walk
C. live
D. surf
(
D
) 3. A. funny
B. natural
C. beautiful
D. dangerous
(
A
) 4. A. sick
B. bored
C. strong
D. relaxed
(
D
) 5. A. after
B. since
C. before
D. while
(
A
) 6. A. rushed
B. looked
C. left
D. laid
(
A
) 7. A. safely
B. quickly
C. quietly
D. terribly
(
C
) 8. A. who
B. this
C. that
D. whether
(
B
) 9. A. Above
B. Under
C. Behind
D. Between
(
C
)10. A. wash away
B. warm up
C. cool off
D. clean out
解析：
翻译:
### 四、完形填空
航天服可不只是让宇航员看起来很酷。没有这些特殊的航天服，宇航员就无法离开他们的宇宙飞船。也就是说，他们就无法在月球上行走，也无法在空间站外工作。
太空对人类来说是一个危险的地方。首先，太空中没有可供呼吸的空气。其次，太空还有高强度的辐射——这种能量可以穿过我们的身体并使我们生病。第三，太空的一些区域非常寒冷，而另一些区域则非常炎热。所以，如果宇航员不穿航天服就离开宇宙飞船到外面去，他们可能在几秒钟内就会死亡。不过，穿上航天服后，宇航员就可以在太空中活动几个小时。
航天服将宇航员安全地密封在里面。一个背包会输送氧气，让宇航员能够正常呼吸。与此同时，宇航员呼出的二氧化碳会被吸走。航天服还能保护他们免受有害辐射和快速移动的太空尘埃的伤害。在航天服下面还有一套看起来像紧身睡衣的服装，里面有小管子。水会通过这些管子流动，为宇航员降温，因为穿上航天服会让宇航员变得非常热！
