BEING an astronaut sounds cool, doesn't it? In space, they get to do some pretty amazing things, like floating 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. 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 kind of 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 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."
1.From Paragraphs 2 and 3 , we can know that_______.
A.astronauts are unable to feel sad in space
B.astronauts produce fewer tears in space
C.tears produced in space flow down more slowly
D.tears produced in space don't flow downward
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.
3.The underlined phrase "take them for granted" in paragraph 7 means _______.
A.find them important
B.consider them useless
C.need them during an emergency
D.fail to notice their presence(存在)
4.The second-to-last paragraph (paragraph 7) is mainly about_______.
A.suggestions of how astronauts can stay comfortable in space
B.other basic things that are difficult to do in space
C.why burping is impossible in space
D.things human can't do without gravity
九年级英语阅读理解中等难度题
BEING an astronaut sounds cool, doesn't it? In space, they get to do some pretty amazing things, like floating 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. 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 kind of 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 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."
1.From Paragraphs 2 and 3 , we can know that_______.
A.astronauts are unable to feel sad in space
B.astronauts produce fewer tears in space
C.tears produced in space flow down more slowly
D.tears produced in space don't flow downward
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.
3.The underlined phrase "take them for granted" in paragraph 7 means _______.
A.find them important
B.consider them useless
C.need them during an emergency
D.fail to notice their presence(存在)
4.The second-to-last paragraph (paragraph 7) is mainly about_______.
A.suggestions of how astronauts can stay comfortable in space
B.other basic things that are difficult to do in space
C.why burping is impossible in space
D.things human can't do without gravity
九年级英语阅读理解中等难度题查看答案及解析
BEING an astronaut sounds cool, doesn't it? In space, they get to do some pretty amazing things, like floating 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. 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 kind of 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 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."
1.From Paragraphs 2 and 3 , we can know that_______.
A.astronauts are unable to feel sad in space
B.astronauts produce fewer tears in space
C.tears produced in space flow down more slowly
D.tears produced in space don't flow downward
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.
3.The underlined phrase "take them for granted" in paragraph 7 means _______.
A.find them important
B.consider them useless
C.need them during an emergency
D.fail to notice their presence(存在)
4.The second-to-last paragraph (paragraph 7) is mainly about_______.
A.suggestions of how astronauts can stay comfortable in space
B.other basic things that are difficult to do in space
C.why burping is impossible in space
D.things human can't do without gravity
九年级英语阅读理解中等难度题查看答案及解析
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.”
1. From Paragraphs 2 and 3, we can know that __________.
A. astronauts are unable to feel sad in space
B. astronauts produce fewer tears in space
C. tears produced in space flow down more slowly
D. tears produced in space don’t flow downward
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.
3. The underlined phrase “take them for granted” in paragraph 7 means __________.
A. find them important B. consider them useless
C. need them during an emergency D. fail to notice their presence
4.Paragraph 7 is mainly about __________.
A. suggestions of how astronauts can stay comfortable in space
B. other basic things that are difficult to do in space
C. why burping is impossible in space
D. things human can’t do without gravity
九年级英语阅读理解困难题查看答案及解析
An astronaut’s work may sound exciting, but living in space isn’t as fun as you think. The website www.space.com lists the disadvantages of living in space. Here are some of them.
When astronauts work outside the station during spacewalks, they have to wear special gloves. The gloves are very tight. They can hurt the astronauts’ fingernails(手指甲) and even make them fall off.
In space, you don’t have many choices in what you eat. It’s hard to get fresh fruits and vegetables. It is not OK to eat bread because it leaves crumbs(碎屑). Crumbs could fly around everywhere.
In space, it is impossible to have a good shower because water can fly all over the ship and break the machines. Astronauts have to use a special water-shooting(喷水) gun and a washcloth.
Astronauts lose their bone strength quickly during their stay in space. So far, there is no way to solve this problem. They do exercise while they’re in space to try to keep their bones strong as long as possible.
Perhaps the hardest part of life in space is the feeling of loneliness. Astronauts sometimes have to spend weeks and even months away from Earth. They miss their friends and families.
1.People often think the life in space is ________ .
A. terrible B. lonely C. hard D. fun
2.What may hurt astronauts fingernails while working in space?
A. Washcloth. B. The special gloves.
C. The water-shooting gun. D. Crumbs.
3.. How do the astronauts have a good shower in space?
A. By eating bread.
B. By breaking the machines.
C. By using a special water-shooting gun and a washcloth.
D. By wearing gloves.
4. How do the astronauts keep their bones strong in space?
A. By taking medicine. B. By doing exercise.
C. By taking a good rest. D. By walking in space.
5. What’s the hardest part of life for astronauts in space?
A. They feel very lonely. B. They have to stay alone in space.
C. They have no friends. D. They have no families.
九年级英语阅读理解中等难度题查看答案及解析
—How do astronauts eat in space?
—They have special plates ___________their food doesn't float away.
A.so that B.since C.so…that D.because
九年级英语单选题中等难度题查看答案及解析
根据句意及汉语提示,填写句中所缺的单词。
1.The astronauts (描述) what they had seen in space.
2.It’s hard to (想象) how they can improve English so quickly.
3.Don’t ask that. It’s ___________ (私人的) secret.
4.September is the _________(第九) month of the year.
5.His parents were born in Germany. They are _________(德国人).
九年级英语单词拼写中等难度题查看答案及解析
However exciting space travel sounds, astronauts must still suffer with bad food. Now, food in space has to be dehydrated(使脱水)or pre-cooked and stored. This means astronauts aren't really eating fresh food.
New technology may change this. Scientific American reports that a specially-designed oven will be sent into space this autumn with NASA's NG-12 cargo(货物).Far from the common vacuum-packed(真空包装的)meals, astronauts may get to enjoy freshly baked cookies before the end of 2019.
Why aren't they baking cookies in space already?
For one thing, there's the risk of a fire. Engineers also have to overcome the challenge of microgravity, which prevents heat from circling inside ovens the same way it does on Earth.
Astronauts will still have to wait a while before they can have their cookies, though. After baking, the results will be sent back to Earth for safety testing. If successful, this will be the first oven to bake food in space.
“I believe…that will be game-changing for both science and astronauts, ”food technology researcher Maeena Naman Shafiee told Scientific American.
One of the main driving forces behind this project has been NASA's 2018 research into the effects of " confinement(封闭)and isolation(隔离)”. Unlike on the International Space Station(ISS), astronauts traveling out of Earth's orbit may not be able to speak to their loved ones on future missions, which could lead to negative feelings.
It's hoped that the chance to bake and sense familiar smells can bring joy to crews(宇航人员).
“Is the ISS going to smell like fresh-baked cookies? We don't know, ”said NanoRacks' communications manager Abby Dickes. “But that's a feeling we all know and love…that will make someone feel at home.”
Baking cookies in space would mark an important step, offering a small comfort in the difficult and unfamiliar environment of space travel. Astronauts have already grown plants aboard the ISS.
With commercial(商业的)space travel now being planned, who knows what other developments may surprise us in the future
1.What can the new technology help astronauts to do in space?
A.Store more food. B.Enjoy fresh cookies.
C.Quickly prepare food. D.Cook many different kinds of home-made meals.
2.Why is it difficult to bake cookies in space?
A.Because it's difficult and costly to send food into space.
B.Because microgravity stops food from staying in one place.
C.Because baking cookies in space would pollute the spaceships.
D.Because it is hard to heat food properly because of microgravity.
3.What was the main purpose of the cookie project?
A.To improve astronauts' health. B.To make improvements in space travel.
C.To encourage more people to travel to space. D.To make space travel more comfortable for astronauts.
九年级英语阅读单选中等难度题查看答案及解析
综合填空。
根据短文内容填上合适的单词。
Do you like the space? Do you know how astronauts work in space? They work in space and u__1._ robots’ arms and hands to do their work. But why do they _2._ heavy spacesuits?
When they stay __3.__(在…内) the space station, astronauts are comfortable. The _4.__ there stays at about 21C. But outside the station ,the temperature can be too hot or too __5._ for people. In the sunlight , it’s about 120C, w__6._ in the shadow of the station, it’s about -85C.So when astronauts walk in space, they have to wear spacesuits.
Spacesuits can also keep astronauts ___7.__(安全) from flying rubbish in space. Every time people go into space, they ___8.__(留下) a lot of rubbish there and some rubbish moves as ___9.__ as a plane!
It takes a lot of time to get ready for space walking. So space walking is not e__10._, and it can be dangerous.
九年级英语单词拼写中等难度题查看答案及解析
Astronauts sometimes feel ________ in space because they can't see other people there.
九年级英语根据句意填空中等难度题查看答案及解析
—Chinese astronauts can also walk in space now.
—Yes, they’re our nation.
A. proud of B. pleased with
C. the pride of D. known for
九年级英语单项填空中等难度题查看答案及解析