11.The water behind the Three Gorges Dams should be higher than downstream. A. sixty-five meter B. sixty-fifth meter C. sixty-five meters D. sixty-fifth meters 查看更多

 

题目列表(包括答案和解析)

If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? Astronauts at the ISS may soon do so.
NASA(美国航空航天局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.
At present, each ISS astronaut uses about 4.4 liters(升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11,000.
The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.
Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria(细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.
【小题1】NASA will use a high-tech machine to recycle wastewater at the ISS to ______.

A.protect the ISS
B.make the astronauts work harder
C.provide better water and food for the astronauts
D.save the cost of sending water up to the ISS
【小题2】At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.
A.4.4 thousandB.11 thousand
C.48.4 thousandD.24 million
【小题3】Scientists plan to get rid of bacteria in the wastewater by ______.
A.freezingB.heating
C.shakingD.precipitating(沉淀)
【小题4】The passage mainly tells us something about ______.
A.water recycling at the ISS
B.the International Space Station
C.a high-tech machine
D.the cost of NASA
【小题5】Which of the following sentences is TURE?
A.The recycled water is much better than that from a city tap.
B.The high-tech machine will recycle all the water used on the station.
C.The ISS astronauts use more water than us.
D.The high-tech machine can only recycle urine to make water.

查看答案和解析>>

If you knew a bottle of water had been recycled from urine (尿), would you drink it? Astronauts at the International Space Station (ISS) may soon do so. NASA (美国航空航天局) said it would use a high-tech machine (高科技机器) to recycle wastewater at the ISS. The machine will recycle everything from sweat (汗), the water for washing hands, shower water, water used for brushing teeth, and even urine, to make drinking water.

It will save NASA millions of dollars each year. At present, each ISS astronaut uses about 4.4 liters (升) of water every day. It costs about $24 million a year to transport water up to ISS. NASA says that a liter of water costs about $11,000.

The machine will be sent to the ISS in October 2008. NASA hopes it will recycle about 93% of all water used on the station. Will the water be clean? Scientists say the wastewater will go through a very complicated process (复杂的过程). For example, different chemicals will be put in the wastewater; the water will be heated to 130to get rid of bacteria (细菌). The recycled water is thousands of times better than the water from a city tap, scientists say.

1.NASA will use a high-tech machine to recycle wastewater at the ISS to __________.

A. protect the ISS

B. make astronauts at ISS work harder

C. provide better water and food for ISS astronauts

D. save the cost of transporting water up to the ISS

2.At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.

A. 4.4 thousand B. 11 thousand

C. 48.4 thousand D. 24 million

3.Scientists plan to get rid of bacteria in the wastewater by ______.

A. freezing B. heating

C. shaking D. precipitating (沉淀)

4.The reading mainly tells us something about ______.

A. water recycling B. the International Space Station

C. a high-tech machine D. the cost of NASA

5. Which of the following sentences is true, according to the passage?

A. The recycled water is much better than that from a city tap.

B. The high-tech machine will recycle all the water used on the station.

C. At present, each ISS astronaut uses more water than the people living on the earth.

D. The high-tech machine can only recycle urine to make water at present

 

查看答案和解析>>

If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? Astronauts at the ISS may soon do so.

NASA(美国航空航天局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.

At present, each ISS astronaut uses about 4.4 liters(升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11,000.

The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.

Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria(细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.

1.NASA will use a high-tech machine to recycle wastewater at the ISS to ______.

A.protect the ISS

B.make the astronauts work harder

C.provide better water and food for the astronauts

D.save the cost of sending water up to the ISS

2.At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.

A.4.4 thousand                           B.11 thousand

C.48.4 thousand                          D.24 million

3.Scientists plan to get rid of bacteria in the wastewater by ______.

A.freezing                              B.heating

C.shaking                               D.precipitating(沉淀)

4.The passage mainly tells us something about ______.

A.water recycling at the ISS

B.the International Space Station

C.a high-tech machine

D.the cost of NASA

5.Which of the following sentences is TURE?

A.The recycled water is much better than that from a city tap.

B.The high-tech machine will recycle all the water used on the station.

C.The ISS astronauts use more water than us.

D.The high-tech machine can only recycle urine to make water.

 

查看答案和解析>>

If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? Astronauts at the ISS may soon do so.
NASA(美国航空航天局) said it would use a high-tech machine to recycle wastewater at the ISS. The machine will recycle water for washing hands, shower water, water for brushing teeth and even urine to make drinking water. It will save millions of dollars each year.
At present, each ISS astronaut uses about 4.4 liters(升) of water every day. It costs about 24 million dollars a year to send water up to the ISS. A liter of water costs about $ 11,000.
The machine will be sent to the ISS later. NASA hopes it will recycle about 93% of all the water used on the station.
Will the water be clean? Different chemicals will be put in the wastewater. The water will be heated to 130℃ to kill bacteria(细菌). Scientists say that the recycled water is thousands of times better than the water from a city tap.
小题1:NASA will use a high-tech machine to recycle wastewater at the ISS to ______.
A.protect the ISS
B.make the astronauts work harder
C.provide better water and food for the astronauts
D.save the cost of sending water up to the ISS
小题2:At present it costs NASA about ______ dollars to transport water up to an astronaut at the ISS a day.
A.4.4 thousandB.11 thousand
C.48.4 thousandD.24 million
小题3:Scientists plan to get rid of bacteria in the wastewater by ______.
A.freezingB.heating
C.shakingD.precipitating(沉淀)
小题4:The passage mainly tells us something about ______.
A.water recycling at the ISS
B.the International Space Station
C.a high-tech machine
D.the cost of NASA
小题5:Which of the following sentences is TURE?
A.The recycled water is much better than that from a city tap.
B.The high-tech machine will recycle all the water used on the station.
C.The ISS astronauts use more water than us.
D.The high-tech machine can only recycle urine to make water.

查看答案和解析>>

If you knew a bottle of water had been recycled from urine(尿),would you drink it? Astronauts at the International Space Station(ISS)may soon do so.

    NASA(美国航空航大局)said it would use a high-tech machine(高科技机器)to recycle wastewater at the ISS.The machine will recycle everything from sweat(汗),the water for washing hands,shower water,water used for brushing teeth,and even urine,to make drinking water.

    It will save NASA millions of dollars each year.At present,each ISS astronaut uses about4.4 liters(升)of water every day.It costs about$24 million a year to transport(输送)water up to ISS.NASA says that a liter of water costs about$11,000.

    The machine will be sent to the ISS in October 2008.NASA hopes it will recycle about 93%of all water used on the station.

    Will the water be clean? Scientists say the wastewater will go through a very complicated process(复筠导的过程).For example,different chemicals will be put in the wastewater;the water will be heated to 130℃ to get rid of bacteria(细菌).The recycled water is thousands of times better than the water from a city tap,scientists say.

1.NASA will use a high-tech machine to recycle wastewater at the ISS to_________

    A.protect the ISS

    B.make astronauts at ISS work harder

    C.provide better water and food for ISS astronauts

    D.save the cost of transporting water up to the ISS

2.At present it costs NASA about _______ dollars to transport water up to an astronaut at the ISS a day.

    A.4.4 thousand       B.11 thousand          C.48.4 thousand       D.24 million

3.Scientists plan to get rid of bacteria in the wastewater by_______.

    A.freezing            B.heating              C.shaking             D.washing

4.The reading mainly tells us something about_______.

    A.water recycling                                  B.the International Space Station

    C.a high-tech machine                         D.the cost of NASA

5.Which of the following sentences is true, according to the passage?

A.The recycled water is much better than that from a city tap.

B.The high-tech machine will recycle all the water used on the station.

C.At present, each ISS astronaut uses more water than the people living on the earth.

D.The high-tech machine can only recycle urine to make water at present.

查看答案和解析>>


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