If you have a bottle of water recycled(再利用) from urine(尿), would you drink it? A
题型：不详难度：来源：
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 thousand | B．11 thousand | | C．48.4 thousand | D．24 million |
小题3:Scientists plan to get rid of bacteria in the wastewater by ______.| A．freezing | B．heating | | C．shaking | D．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. |
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答案
小题1:Ｄ
小题2:Ｃ
小题3:Ｂ
小题4:Ａ
小题5:Ａ |
解析
试题分析：这篇短文主要描述了在空间站上水的回收利用问题。科学家们用一种高科技机器把人员在空间站上产生的废水，回收利用，从而减少往空间站运水的费用。
小题1:根据短文第一二段描述，可知选Ｄ，用高科技机器来节约送水去空间站的花费。
小题2:根据第三段描述，计算可知11,000*4.4=" 48.4" thousand，故选Ｃ。
小题3:根据最后一段The water will be heated to 130℃ to kill bacteria(细菌).描述，可知选Ｂ。
小题4:这篇短文主要描述了在空间站上水的回收利用问题。故选Ａ。
小题5:根据最后一段Scientists say that the recycled water is thousands of times better than the water from a city tap.描述，可知选Ａ。
点评：本文信息量较大，出现数字较多。阅读中注意把握短文的重点内容。然后带着问题,再读短文,找出答题依据.对于有关数字的问题,要认真分析,并进行必要的计算. |
举一反三
A Brown University sleep researcher has some advice for people who run high schools: Don’t start classes so early in the morning. It may not be that the students who nod off at their desks are lazy. And it may not be that their parents have failed to enforce(确保) bedtime. Instead, it may be that biologically(生物学上)these sleepyhead(贪睡者)students aren’t used to the early hour.
“Maybe these kids are being asked to rise at the wrong time for their bodies,” says Mary Carskadon, a professor looking at problem of adolescent (青春期的)sleep at Brown’s School of Medicine.
Carskadon is trying to understand more about the effects of early school time in adolescents. And, at a more basic level, she and her team are trying to learn more about how the biological changes of adolescence affect sleep needs and patterns(方式).
Carskadon says her work suggests that adolescents may need more sleep than they did at childhood, no less, as commonly thought.
Sleep patterns change during adolescence, as any parent of an adolescent can prove. Most adolescents prefer to stay up later at night and sleep later in the morning. But it’s not just a matter of choice---their bodies are going through a change of sleep patterns.
All of this makes the transfer(迁移)from middle school to high school---which may start one hour earlier in the morning----all the more difficult, Carskadon says. With their increased need for sleep and their biological clocks set on the “sleep late, rise late” pattern, adolescents are up against difficulties when they try to be up by 5 or 6 a.m. for a 7:30 a.m. first bell. A short sleep on a desktop may be their body’s way of saying. “I need a timeout.”
小题1:Carskadon suggests that high schools should not start classes so early in the morning because _______.| A．it is really tough for parents to enforce bedtime | | B．it is biologically difficult for students to rise early | | C．students work so late at night that they can’t get up early | | D．students are so lazy that they don’t like to go to school early |
小题2:The underlined phrase nod off most probably means _______.| A．turn around | B．agree with others | C．fall asleep | D．refuse to work |
小题3:What might be a reason for the hard transfer from middle school to high school?| A．Adolescents depend more on their parents. | | B．Adolescents have to choose their sleep patterns. | | C．Adolescents sleep better than they did at childhood. | | D．Adolescents need more sleep than they used to. |
小题4:What is the test mainly about?| A．Adolescent health care. | | B．Problems in adolescent learning. | | C．Adolescent sleep difficulties. | | D．Changes in adolescent sleep needs and patterns. |
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March 5 is Lei Feng Day. Lei Feng is one of the most famous role models（榜样） in China. He is known for his warm heart and kind deeds（行为）. We should learn from him. In honor of this great person, we did lots of kind deeds on March 4. Take a look!
Xu Hanchi, 13:
I went to a square（广场）in a local university with my classmates to do cleaning. We swept off the fallen leaves and picked up rubbish. When we finished, the ground was very clean. Though no one came up to praise us, we still felt very happy. We learned that doing good things itself could make us happy.
Zhu Lingyue, 14:
My group cleaned the teachers’ office that day. When we got there, we were surprised that the office was not as clean as we expected. How could teachers work in such an untidy（不整洁的） place? We started cleaning quickly. Teachers work really hard and may not have the time to clean their offices. It’s great that we can do something to help make them less tired.
Tom Rui, 14:
We helped clean the yard in the front of a hospital, but some patients（病人） there left us a very bad impression（印象）. They were very impolite and shouted at nurses and doctors. I think nurses and doctors’ work is hard. They try their best to help us. We should give them more respect and understanding.
小题1:The three children did lots of kind deeds _________| A．on March 5 | B．on March 8 | C．on March 4 | D．on March 3 |
小题2:Zhu Lingyue _______ on that day. | A．cleaned the yard | B．cleaned the teachers’s office | | C．cleaned a square | D．cleaned a hospital. |
小题3:Tom Rui thinks the patients in the hospital are ________| A．kind | B．polit | C．happy | D．rude |
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Just as in face-to-face communication, there are some basic rules of behavior(行为) that should be followed on the Internet. The basic rule is simple: treat others in the same way you would want to be treated. Imagine how you’d feel if you were in the other person’s shoes.
For anything you’re about to send: ask yourself, “ Would I say that to the person’s face?” If the answer is no, rewrite and reread. If someone in the chat room is rude to you, you needn’t to fire back. You should either ignore(不理睬) the person, or use your chat software to block their messages. Remember to respect the beliefs and opinions of others in the chat room.
Everyone was new to the network once. Offer advice when asked by newcomers, as they may not be sure what to do or how to communicate. When someone makes a mistake, be kind about it. If you do decide to tell someone about the mistake, point it out politely. At the same time, if you find you are wrong, be sure to correct yourself and apologize to those that you have offended(冒犯). You’d better not ask others questions about their age, sex and families. Unless you know the person very well, and you are both comfortable with sharing personal information, or don’t ask such questions.
小题1:The Chinese meaning of the sentence “ treat others in the same way you would want to be treated”小题2:You should point out someone’s mistake __________.| A．politely | B．rudely | C．patiently | D．seriously |
小题3:If you don’t know the person very well, you’d better not to ask_______.| A．their age | B．their sex | C．their weight | D．both A and B |
小题4:This passage is mainly about ____| A．how to communicate | | B．sharing personal information | | C．basic rules of behavior on the Internet. | | D．respecting others in the chat room. |
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In America, parents want their children to do something they can.小题1:, they want them to use小题2:wisely（精明地）. When the children are still very young, parents will begin telling them different kinds of money. Parents also tell them what money can小题3:.When the children become a little小题4:, parents teach them to save money. If the children want to buy something, they can use小题5:money. Parents will tell them what they should buy and what they shouldn’t .
When children use their money, parents often tell them to share（分享）with小题6:Parents are glad小题7:their children share their money and help others.小题8:the children can learn to be helpful. Parents also teach their children to make a plan for小题9:money. It is good for them.
In America, people often sell some of their old things . If people buy them, they can get some money. Some children help others wash cars小题10:sell newspapers to get money . But in China, parents have different opinions. Maybe there is something good for us to learn. Do you think so ?
| 小题11: | | A．For example | B．However | C．Such as | D．Because |
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| 小题12: | | A．things | B．computers | C．money | D．time |
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| 小题13: | | A．be used to | B．is used for | C．use for | D．be used for |
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| 小题14: | | A．big | B．younger | C．older | D．old |
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| 小题15: | | A．their own | B．of their own | C．his own | D．themselves |
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| 小题16: | | A．the others | B．others | C．other | D．the other |
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| 小题17: | | A．seeing | B．to see | C．looking | D．to look |
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| 小题18: | | A．On the way | B．In this way | C．In the way | D．By the way |
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| 小题19: | | A．spending | B．costing | C．taking | D．paying |
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What can you do on the Internet? Many of us like to read the news, buy things and play games. Some students now have a new use for the Internet – helping them with their homework.
Tina, 14, from Shenzhen, Guangdong, often searches online for the answers to her math problems. She said sometimes she and even her parents don’t know the answers to the problems, so she has to turn to the Internet.
“I can see how other people work out these problems and learn from them,” Tina said. “It’s easy and saves time.”
But not all the students welcome this. Leo, 15, from Hangzhou, Zhejiang, thinks it may make students stop thinking.
“We should think over the problems first. Simply copying the answers won’t improve our abilities. ” he said.
In the eyes of Wang Zhaoming, a Shanghai teacher, the success of all this is down to the students. If they use the Internet properly (适当地), it could be a good tool for study, Wang said.
“Students should first think about the problems by themselves. As for the online answers, they should choose the best among different ones. The most important thing is to know the logic (逻辑) behind the answers,” he said. “Don’t be shy to ask teachers and classmates the next day if you don’t understand the answer.”
小题1:According to the passage, it’s a new use for students to ___________ on the Internet. | A．buy things | B．play games | C．help with homework | D．read news |
小题2:The right order to use the Internet to help with our homework is ____________.
① Choose the best answers among different answers online;
② Search the answers on the Internet;
③ Think about the problems by ourselves;
④ Try to understand the logic behind the answer you’ve chosen.小题3:In Leo’s opinion, searching online for the answers may _______________. | A．make students simply copy the answers instead of thinking | | B．help solve the problems between students and their parents | | C．be a good tool of study if students use the Internet properly | | D．improve the students’ different abilities |
小题4:The best title of this passage is_____________. | A．How to use the Internet | B．Think before you search online | | C．Is Internet bad or good for students | D．Computers or teachers |
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