Russia has announced that it is developing a specialized washing machine for astronauts to use in space. The announcement came from a missile, spaceship and space station manufacturer RKK.
Normal washing machines require gravity to function, not to mention significant amounts of water that has to be stored somewhere and increases weight — they are not suitable for space missions (任务). This means that astronauts cannot wash their clothes and either have to pack enough for their whole trip or rely on costly resupply missions and throw used items into space.
Crewmembers taking part in long-term missions on the International Space Station (ISS) often end up wearing the same garments for several continuous days and just change into new ones when they get dirty. Aside from this issue, wearing dirty clothes can be uncomfortable for the astronauts and could also provide perfect conditions for dangerous bacteria to grow and spread.
RKK has previously outlined plans for a space washing machine in a Russian space industry journal paper published in 2017. In the paper, the authors estimated (估计) that 1,450 pounds of clothes are surprisingly transported to the ISS every year to cover the requirements of just three astronauts. And this quantity could increase to three tons for a two-year voyage to Mars involving six crewmembers and could increase the costs and complexity of a mission.
The Russian scientists said that, instead of water, the washing machine would use the carbon dioxide produced by the astronauts’ breathing in the spaceship. Special technology would then turn the gas into a liquid under high pressure in order to clean the clothes.
The Russian designs are not the first proposals for a space washing machine. NASA has previously made a model of a low-power, low-water washing device (设备) which was designed to work in the microgravity of low-Earth orbit or that of the moon or Mars.
1.Normal washing machines are not suitable in the spaceship mainly because __________.
A.they lead to serious space pollution
B.they make some bacteria spread
C.they require gravity to function
D.they increase the weight of the spaceship
2.What might be the biggest advantage of the specialized washing machine?
A.Helping astronauts dry their clothes.
B.Having a competition against NASA.
C.Making the missions cheaper and easier.
D.Getting astronauts to adapt to the environment.
3.Where can astronauts get the liquid for washing clothes in the spaceship?
A.From the water tank in the spaceship. B.From the outer space.
C.From the recycling water in the spaceship. D.From the gas carbon dioxide.
4.What does the text mainly talk about?
A.Russia is developing a space washing machine.
B.A space washing machine has been used in Russia.
C.NASA’s made a model of a space washing machine.
D.RKK transports tons of clothes to astronauts in space.
高三英语阅读理解中等难度题
Russia has announced that it is developing a specialized washing machine for astronauts to use in space. The announcement came from a missile, spaceship and space station manufacturer RKK.
Normal washing machines require gravity to function, not to mention significant amounts of water that has to be stored somewhere and increases weight — they are not suitable for space missions (任务). This means that astronauts cannot wash their clothes and either have to pack enough for their whole trip or rely on costly resupply missions and throw used items into space.
Crewmembers taking part in long-term missions on the International Space Station (ISS) often end up wearing the same garments for several continuous days and just change into new ones when they get dirty. Aside from this issue, wearing dirty clothes can be uncomfortable for the astronauts and could also provide perfect conditions for dangerous bacteria to grow and spread.
RKK has previously outlined plans for a space washing machine in a Russian space industry journal paper published in 2017. In the paper, the authors estimated (估计) that 1,450 pounds of clothes are surprisingly transported to the ISS every year to cover the requirements of just three astronauts. And this quantity could increase to three tons for a two-year voyage to Mars involving six crewmembers and could increase the costs and complexity of a mission.
The Russian scientists said that, instead of water, the washing machine would use the carbon dioxide produced by the astronauts’ breathing in the spaceship. Special technology would then turn the gas into a liquid under high pressure in order to clean the clothes.
The Russian designs are not the first proposals for a space washing machine. NASA has previously made a model of a low-power, low-water washing device (设备) which was designed to work in the microgravity of low-Earth orbit or that of the moon or Mars.
1.Normal washing machines are not suitable in the spaceship mainly because __________.
A.they lead to serious space pollution
B.they make some bacteria spread
C.they require gravity to function
D.they increase the weight of the spaceship
2.What might be the biggest advantage of the specialized washing machine?
A.Helping astronauts dry their clothes.
B.Having a competition against NASA.
C.Making the missions cheaper and easier.
D.Getting astronauts to adapt to the environment.
3.Where can astronauts get the liquid for washing clothes in the spaceship?
A.From the water tank in the spaceship. B.From the outer space.
C.From the recycling water in the spaceship. D.From the gas carbon dioxide.
4.What does the text mainly talk about?
A.Russia is developing a space washing machine.
B.A space washing machine has been used in Russia.
C.NASA’s made a model of a space washing machine.
D.RKK transports tons of clothes to astronauts in space.
高三英语阅读理解中等难度题查看答案及解析
The year is 2094. It has been announced that a comet (彗星) is heading towards the Earth . Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July , a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion . About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes are set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the earth are already dead, but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. The sun won’t be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million people remain alive.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out. Will we meet the same end?
1．What is mainly described in the passage?
A．A historic discovery . B．An event of imagination
C．A research on space . D．A scientific adventure.
2．When the first piece hits the South Atlantic, it causes ________ .
A．an earthquake B．damages to cities C．an Earth explosion D．huge waves
3．Why can’t the northern half of the earth escape for long ?
A．Because the land is covered with water
B．Because the light and heat from the sun can not reach the earth .
C．Because people there can not live at the temperature of zero .
D．Because wars break out among countries .
4．By giving the example of dinosaurs , the author tries to prove ________ .
A．animals could not live in the cold climate
B．what happened 65 million years ago was an invented story
C．the human beings will die out in 2094
D．the Earth could be hit by other objects in space
高三英语阅读理解简单题查看答案及解析
At the end of the sports meeting,it was announced that class 7 the relay race.
A.has won B.win C.had won D.was winning
高三英语单项填空中等难度题查看答案及解析
At the end of the meeting, it was announced that an agreement _______.
A. has been reached B. had been reached
C. has reached D. had reached
高三英语单项填空中等难度题查看答案及解析
．________ relation between China and Russia has developed steadily since Vladimir Putin was reelected ________ president last May.
A．The; the B．A; the
C．The; / D．A; /
高三英语单项填空中等难度题查看答案及解析
The year is 2094. It has been announced that a comet (彗星) is heading towards the Earth. Most of it will miss our plant, but two pieces will probably hit the southern half of the Earth.
On 17 July, a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion. About half of the piece is destroyed, but the remaining part hits the South Atlantic at 200 times the speed of sound. The sea boils and a huge hole is made in the sea bed. Huge waves are created and spread outwards from the hole. The wall of water, a kilometer high, rushes towards southern Africa at 800 kilometers an hour. Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America, the second piece of the comet lands in Argentina. Earthquakes and volcanoes are set off in the Andes Mountains. The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles, San Francisco and Tokyo are completely destroyed by earthquakes. Millions of people in the southern half of the earth are already dead, but the north won’t escape for long. Because of the explosions, the sun is hidden by clouds of dust, and temperatures around the world fall to almost zero. Crops are ruined. The sun won’t be seen again for many years. Wars break out as countries fight for food. A year later, no more than 10 million remain alive.
Could it really happen? In fact, it has already happened more than once in the history of the Earth. The dinosaurs were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out. Will we meet the same end?
1.What is mainly described in the passage?
A. A historic discovery. B. An event of imagination.
C. A research on space. D. A scientific adventure.
2.A. an earthquake B. damages to cities
C. an Earth explosion D. huge waves
3.Why can’t the northern half of the earth escape for long?
A. Because the land is covered with water
B. Because the light and heat from the sun can not reach the earth.
C. Because people there can not live at the temperature of zero.
D. Because wars break out among countries.
4. By giving the example of dinosaurs, the author tries to prove_____________.
A. animals could not live in the cold climate
B. what happened 65 million years ago was an invented story
C. the human beings will die out in 2094
D. the Earth could be hit by other objects in space
5.We may guess that the writer is ______________.
A. worried B. practical C. a scientist D. full of imagination
高三英语阅读理解中等难度题查看答案及解析
______ relation between China and Russia has developed steadily since Vladimir Putin was re-elected______ president.
A. The; the B. The; / C. A; the D. The; a
高三英语单项填空中等难度题查看答案及解析
The year is 2094,It has been announced that a comet is heading towards the Earth.Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July, a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion.About half of the piece is destoryed but the remaining part hits the South Atlantic at 200times the speed of sound.The sea boils and a huge gole is made in the sea bed.Huge waves are created and spread outwards form the hole.The eall of water,a kilometer high,rushes towards southern Africa at 800 kilometers an hour.Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America.the second piece of the comet lands in Argentina.Earthquakes and volcanoes are set off in the Andes Moutains.The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles,San Francisco and Tokyo are completely destroyed by earthquakes,Millions of people in the southern half of the earth are already dead,but the north won’t eacape for long.Because of the explosions the sun is hidden by clouds of dust,and temperatures around the world fall to almost zero.Crops are ruined.The sun won’t be seen again for many years.Wars break out as countries fight for food.A year later,no more than 10 million remain laive.
Could it really happen?In fact,it has already happened more than once in the history of the Earth.The dinesaurs were on the Earth for over 160 million years,Then 65 million years ago they suddenly disappeared.Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out .Will we meet the same end ?
1.What is mainly described in the passage ?
A.A historic discovery B.A research on space
C.A scientific adventure D.An imaginary event
2.When the first piece hits the South Atlantic,it causes_______.
A.an earthquake B.huge waves
C.damages to cities D.an Earth explosion
3.Why can’t the northern half of the earth escape ofr long?
A.Because the land is covered with water.
B.because people there can not live at the temperature of zero.
C.Because wars break out among countries.
D.Because the light and heat from the sun can not reach the earth.
4.By giving the example if dinosaurs,the author tries to prove________.
A.animals could not live in the cold climate.
B.what happened 65 mollion years ago was an invented story.
C.the human beings will die out in 2094
D.the Earth could be hit by other objects in space
5.We may guess that the writer is_________.
A.worried B.full of imagination C.practical D.a scientist
高三英语阅读理解困难题查看答案及解析
At the end of the meeting,it was announced that an agreement_______.
A.has been reached B.had been reached
C.has reached D.had reached
高三英语单项填空中等难度题查看答案及解析
At the end of the meeting,it was announced that an agreement_______.
| A．has been reached | B．had been reached |
| C．has reached | D．had reached |
高三英语单项填空简单题查看答案及解析