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BEING an astronaut sounds cool, doesn’t it? In space, they g

2021-04-20 

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BEING an astronaut sounds cool, doesn’t it? In space, they get to do some pretty amazing things, like floating(漂浮) in zero gravity(重力).
However, there are also plenty of things that astronauts can’t do because of their weightless environment, and that’s very sad. What’s worse, they can’t even let their sadness show, because it’s impossible to cry in zero gravity.
Of course, astronauts can still produce tears(眼泪). But crying is much more difficult in space, according to The Atlantic(大西洋月刊) in January. Without gravity, tears don’t flow(流动) down out of the eyes like they do here on Earth. This means that when you cry in space, your tears have nowhere to go — they just stick(粘) to your eyes.
In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. “Tears,” he said, “don’t fall off of your eyes. They just stay there.”
Besides making your vision(视线) unclear, this can also cause physical pain. Back on Earth, tears are supposed to bring comfort to the eyes. But that’s not the case(情况) in space. The space environment dries out astronauts’ eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. “My right eye is stinging(刺痛) like crazy,” Feustel told his teammate during the walk.
Since gravity doesn’t work in space, astronauts need some extra help to get rid of(除去) the tears. Feustel chose to rub his eyes against his helmet to wipe(擦) the tears away. Another choice is to just wait — “When the tears get big enough, they simply break free of the eyes and float around,” astronaut Ron Parise told The Atlantic.
There are lots of small things — things like crying — that we are so used to on Earth. We usually take them for granted until they become a problem in a totally different environment, like space. There, astronauts can’t talk to each other directly. They also can’t eat or drink in normal ways. They can’t even burp(打嗝), because there is no gravity to hold the food down in their stomach. If they do burp, they just end up throwing up(呕吐) everything in their stomach, according to the UK National Space Center.
Therefore, perhaps it’s only space explorers who can honestly say, “Gravity, you’re the best.”
小题1: From Paragraphs 2 and 3, we can know that __________.A．astronauts are unable to feel sad in spaceB．astronauts produce fewer tears in spaceC．tears produced in space flow down more slowlyD．tears produced in space don’t flow downward小题2: What effect do tears have on astronauts?A．They cause physical pain.B．They bring comfort to them.C．They make their vision clearer.D．They float around and cause trouble.小题3: The underlined phrase “take them for granted” in paragraph 7 means __________.A．find them importantB．consider them uselessC．need them during an emergencyD．fail to notice their presence小题4:Paragraph 7 is mainly about __________.A．suggestions of how astronauts can stay comfortable in spaceB．other basic things that are difficult to do in spaceC．why burping is impossible in spaceD．things human can’t do without gravity 参考答案：
小题1:D
小题2:A
小题3:D
小题4:B
试题分析：这篇文章讲述了在太空失重的情况下，很多在地球上很平常的事情，像流眼泪，吃饭，在太空中是很难做的。
小题1:细节理解题。根据文章第二段，第三段Without gravity, tears don"t flow(流动) down out of the eyes like they do here on Earth.可知，在太空中没有重力，眼泪是不能从眼睛中流下来。故选D。
小题2:细节理解题。根据文章Besides making your vision(视线)unclear, this can also cause physical pain.可知，在太空中，眼泪不仅使视线模糊，也可以引起身体的疼痛。故选A。
小题3:推理判断题。根据文章We usually take them for granted until they become a problem in a totally different environment, like space.可知，人们通常把眼泪视为理所当然的，直到它在完全的不同的环境中成为了一种问题，比如在太空中。所以，take them for granted的意思是没有注意到它的存在，故选D。
小题4:细节理解题。这篇文章第七段讲述了其他一些在地球上很平常的一些事情，在太空中却很难做的。故选B。

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