Question

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 (美國航空航天局) said it would use a high-tech machine (高科技機器) 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 (復雜的過程). For example, different chemicals will be put in the wastewater; the water will be heated to 130℃to get rid of bacteria (細菌). 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

 

Answer 1

1.D

2.C

3.B

4.C

5.A

【解析】

試題分析：這篇短文主要介紹了美國航天局將使用一種高科技機器回收在國際空間站的一切廢水，包括洗手的水,淋浴的水，汗水，甚至尿液。科學家說經(jīng)過機器回收的水，要比城市的自來水好幾千倍。

1.二段It will save NASA millions of dollars each year.描述可知那樣可以節(jié)約運輸費用，故選D。

2.計算歸納題。根據(jù)第二段At present, each ISS astronaut uses about 4.4 liters (升) of water every day. 和NASA says that a liter of water costs about $11,000.可知每個宇航員每天用水4.4升，每升水用$11,000，通過計算故選C

3.細節(jié)理解題。根據(jù)第三段the water will be heated to 130℃to get rid of bacteria (細菌)故選B

4.歸納理解題。根據(jù)短文的主要內容可知主要描述了高科技的機器回收水，故選C。

5.是非判斷題。根據(jù)第三段The recycled water is thousands of times better than the water from a city tap可知經(jīng)過機器回收的水，要比城市的自來水好幾千倍，故選A。

考點：科普類短文閱讀。