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 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.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 |
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 |
Scientists plan to get rid of bacteria in the wastewater by ______.
A.freezing | B.heating |
C.shaking | D.precipitating (沉淀) |
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 |
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 |
We live on the earth. We use the sea around us. What do we take from the ocean? And what do we give to it?
We take fishes from the ocean—millions of kilograms of fish, every year, to feed millions of people. We take minerals(矿物) from the ocean. We can get salt by evaporating(蒸发) seawater.
Many other minerals, such as gold, can be also got from the sea, but not by
simple evaporation.
Seaweed(海草) becomes food of many kinds— even candy, and ice cream—as well as medicine. Believe it or not, fresh water is another gift from the sea. We can’t drink ocean water.
But ocean water
becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and more on fresh water from the sea.
The sea gives us food, fertilizer, minerals, water and other gifts. What do we give the sea? We pollute the ocean all the time. Throwing waste into the ocean is killing off sea life. Yet as the world population grows, we may need the sea and its gifts more than ever.
We are finally learning that if we destroy our sea, we might also destroy ourselves. Hopefully, it is not too late.
根据以上内容,从下列五个选项中选择适当的句子还原到短文中,使短文完整与正确。将其标号在答题卡上涂黑。(每小题2分,共10分)
E. Some of its contents(所含物) may cause illness. |
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President Hu Jintao flew to the earthquake-hit region in Yushu, Qinghai on April 18, 2010. At a field hospital on the grounds of a sports stadium, Hu sat on the bed of Drolma, a middle school student, and held her in his arm as she wept(哭泣). “Rest assured(放心的), you will have a full recovery(康复). Be strong. You will have a bright future,” he told her. |
![]() The 2010 World Expo, Shanghai China |
The 2010 World Expo Shanghai China Duration(举办时间): May 1 to October 31, 2010 Expected visitors: 70 million Theme(主题) : “Better City, Better Life.” The theme represents the common wish of the people all over the world for a better living in future urban(城市的) environments. |
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The 19th FIFA World Cup(世界杯足球赛) Duration: June 11 to July 12, 2010 Host(主办) nation: South Africa Number of teams: Thirty-two Number of matches: Sixty-four It is the first time that the tournament(锦标赛) has been hosted by a nation in the Confederation(联盟) of African Football. |
请根据以上信息,选择正确答案,将其标号在答题卡上涂黑。(每小题2分,共10分) President Hu Jintao flew to Yushu, Qinghai _________, 2010.
A.on May 1 | B.on June 11 | C.on April 18 | D.on July 12 |
President Hu Jintao comforted(安慰) _________ at a field hospital.
A.a middle school student | B.a soldier |
C.a farmer of Yushu | D.a doctor |
The 2010 World Expo in Shanghai will end on _________.
A.September 30 | B.October 31 | C.November 30 | D.December 31 |
The theme of Expo 2010 is “_________”
A.Better City, Bright future. | B.Better City, Good Environment. |
C.Better City, Better Life. | D.Better City, Best Investment(投资). |
There will be _________ teams taking part in the 19th FIFA World Cup.
A.10 | B.12 | C.13 | D.32 |
Mr Brown saw a sweater in a shop window. It was very cheap, so he bought it. When he got home, he put it on. It was all right and he was pleased with it.
In the afternoon, he went to work in his garden. It soon began to rain and Mr Brown had to run into the house. He ran quickly, but he still got wet. Then his sweater started to shrink(收缩)! It got smaller and smaller. Mr Brown tried to take it off, but he couldn’t.
In the end, with the help of his wife, he got out of the sweater. Mrs Brown laughed, “You see, you bought a cheap thing, but…”
请根据短文内容,选择最佳答案, 将其标号在答题卡上涂黑。(每小题1分,共5分) Mr Brown saw a nice _________ in a shop window. And he bought it.
A.jacket | B.coat | C.sweater | D.shirt |
When he _________, he put it on.
A.got to the office | B.got home | C.went to work | D.went to the shop |
It soon began to_________ while he was working in the garden.
A.rain | B.snow | C.cloud | D.shine |
Mr Brown got wet and he tried to _________ the sweater.
A.take away | B.take off | C.put up | D.put on |
From the story, we know Mr Brown bought _________.
A.a good sweater | B.an expensive sweater |
C.a comfortable sweater | D.a cheap but not good sweater |
Watch for us on TV
THIS summer, many Beijing middle school students had a different kind of vacation. Instead of hanging out with friends or traveling, they were training hard for the National Day celebration.
To mark the special anniversary (周年纪念)of China this year, the students performed a group dance in a big parade(游行)on Tian’anmen Square on October 1.
Students were training from 7:30am to around 10:00am or from 4 pm to 6:30pm. It was to avoid the summer heat.
They wore white hats, T-shirts and dark-blue trousers. The hats and T-shirts were printed with a red logo, the number ‘60”.
The first week of training was PE. Students practiced standing and squatting(蹲)。 Then they moved on to practice the group display. The use colored sheets in the shape of flowers as a prop(道具). When we watch the parade on TV we will see them making colorful patterns(图案)with them.
What do the students think of their unusual summer?
“Sometimes we find it a bit tiring.” says Lu Wenqi,13.”But most of us think it’s a great honor to take part in such an important celebration.”
Li Hui, 15, thinks the same as Lu. She says her classmates are seldom late for training.
“It’s a wonderful chance for us,’ says Li. “When my parents were in college, they also took part in a national day celebration. Now it’s my turn!”
By Wang Min
21st Century Teens staffHow long were the students training every day?
A.two and a half hours | B.five hours | C.six hours | D.five and a half hours |
What did they practice doing at first?
A.running . | B.standing and squatting | C.squatting | D.standing |
What do most of the students think of their unusual summer?
A.A bit tiring | B.It’s a bit honor | C.It’s meaningful | D.It’s meaningless |
What is the main idea of the passage?
A.It’s a wonderful chance for the students to take part in such an important celebration.” |
B.The students are seldom late for training. |
C.Their parents also took part in a national day celebration. |
D.Now it’s my turn! |
Coffee has been a part of people’s lives for thousands of years, and today it is still one of the favorite drinks in the world. Many people in the world begin their busy day by drinking a cup of or several cups of coffee. They have always said that a cup of coffee in the morning helps them begin their day in the right way. So they say a cup of coffee is necessary for them in the morning.
Do you know what in the coffee makes our bodies and brains(大脑) active? It is caffeine(咖啡因). Caffeine may increase a person’s mental and physical abilities(精力和体能). For example, two cups of coffee will make you breathe faster and augmentbody heat. All this makes you heart beat faster, and doctors warn that this may be a little dangerous.
Caffeine is found in tea, coffee, chocolate and some other foods. A little caffeine is probably not harmful. But much caffeine can make people nervous and sleepless.A good title for this passage is .
A.Coffee Is Harmful | B.Coffee and Tea | C.Caffeine and Health | D.Caffeine Is Useful |
The word “augment “ means .
A.increase | B.drink | C.stop | D.drop |
From this passage, we may know that drinking a cup of coffee late at night might .
A.give you a headache | B.make you fall sleep | C.keep you awake | D.be dangerous |
Caffeine is found in .
A.tea and water | B.fish and meat | C.coffee and jam | D.coffee, tea and some other foods |