Federal regulators Wednesday approved a plan to create a nationwide emergency alert (警报) system using text messages delivered to cell phones.
Text messages have exploded in popularity in recent years, particularly among young people. The wireless industry's trade association, CTIA, estimates (估计) more than 48 billions text messages are sent each month.
The plan comes from the Warning Alter and Response Network Act, a 2006 federal law that requires improvement to the nation's emergency alter system. The act tasked the Federal Communications Commission (FCC) with coming up with new ways to alter the public about emergencies.
"The ability to deliver accurate and timely warning and alters through cell phone and other mobile services is an important next step in our efforts to help ensure that the American public has the information they need to take action to protect themselves and their families before, and during, disasters and other emergencies," FCC Chairman Kevin Martin said following approval of the plan.
Participation in the alter system by carriers - telecommunication companies - is voluntary, but it has received solid support from the wireless industry.
The program would be optional for cell phone users. They also may not be charged for receiving alters.
There would be three types of messages, according to the rules.
The first would be a national alter from the president, likely involving a terrorists attack or natural disaster. The second would involve "approaching threats," which could include natural disasters like hurricanes or storms or even university shootings. The third would be reserved for child abduction (绑架)emergencies, or so-called Amber Alerts.
The service could be in place by 2010.
| 1． |
What is the purpose of the approval plan?
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| 2． |
The improvement to the present system is in the charge of.
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| 3． |
The carriers' participation in the system is determined by.
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| 4． |
Which of the following is true of cell phone users?
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| 5． |
An alert message will NOT be sent if.
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| 6． |
Which of the following would be the best title for the test?
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About ten men in every hundred suffer from color blindness in some way. Women are luckier; only about one in two hundred is affected in this matter. Perhaps, after all, it is safer to be driven by a woman!
There are different forms of color blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shadows of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green － a strange world indeed.
Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called “cones”. These help us to see in a bright light and to tell difference between colors. There are also millions of “rods”, but these are used for seeing when it is near dark. They show us shape but no color.
Some insects have favorite colors. Mosquitoes prefer blue to yellow. A red light will not attract insects, but a blue lamp will. In a similar way human beings also have favorite colors. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colors by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible colors around us.The passage is mainly about _____________.
| A．color and its surprising effects. |
| B．women being luckier than men |
| C．danger caused by color blindness |
| D．color blindness |
According to the passage, with the help of the “cones”, we can_______________.
| A．tell different shapes | B．see in a weak light |
| C．kill mosquitoes | D．tell orange from yellow |
Why do some people say it is safer to be driven by women?
| A．Women are more careful. |
| B．There are fewer color-blind women |
| C．Women are fonder of driving than men. |
| D．Women are weaker but quicker in thinking. |
Which of the statements about the color- blind is true?
| A．Not all of them have the same problem in recognizing color. |
| B．None of them can see deep red. |
| C．None of them can tell the difference between blue and green. |
| D．All of them see everything in shades of green. |
We can attract and kill mosquitoes by using a _____________.
| A．red light | B．yellow light |
| C．blue light | D．green light |
l like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don't always want people around. But we would feel lonely if we never had a friend.
No two people are the same. Sometimes friends don't get along well, which doesn't mean that they no longer like each other. Most of the time they will go on being friends. Sometimes friends move away, then we feel very sad. We miss them much, but we can call them and write to them. Maybe we would never see them again, and we can make new friends. It is surprising to find out how much we like new people when we get to know them. Families sometimes name their children after a close friend. Many places are named after men and women, if they are friendly to people in a town. So are some schools. We think of these people when we go to these places.
There's more good news for people, if they have friends. These people live longer than those people if those don't have friends. Why? It could be that they are happier. Being happy helps you stay well. Or it could be just knowing that someone cares, if someone cares about you, you take better care of yourself.The first paragraph tells us __________.
| A．none needs friends | B．we always need friends around us |
| C．making friends is the need in people's life | D．we need to be alone |
Which of the following is NOT mentioned in the passage?
| A．People are happy when their friends leave them. |
| B．People may never see their friends after their friends move away. |
| C．People can know their friends in different ways. |
| D．People like their friends very much if they get to know them. |
Which of the following is the most probable place people name after friendly people?
| A．A house. | B．A room. | C．A library. | D．A village. |
If people have friends, they would live longer, because __________.
| A．they feel happier and healthier | B．they get a lot of help from their friends |
| C．they take better care of themselves | D．both A and C |
This passage tells us __________.
| A．that people are all friends | B．that people need friends |
| C．how to get to know friends | D．how to name a place |
A student is learning to speak British English. He wonders: Can I communicate with Americans? Can they understand me? Learners of English often ask: What are the differences between British and American English? How important are these differences?
Certainly, there are some differences between British and American English. There are a few differences in grammar. For example, speakers of British English say “in hospital” and "Have you a pen?” , Americans say “in the hospital” and ‘Do you have a pen?’.Pronunciation is sometimes different. Americans usually sound theirs in words like “bird” and “hurt”. Speakers of British English do not sound theirs in these words. There are differences between British and American English in spelling and vocabulary. For example, “colour” and “honour” are British, “color” and “honor” are American.
These differences in grammar, pronunciation, spelling and vocabulary are not important, however. For the most part, British and American English are the same language.According to this passage, a student who is learning to speak American English might be afraid that __________.
| A．British people cannot understand him | B．American people cannot understand him |
| C．the grammar is too hard for him | D．the spelling is too hard for him |
American English and British English are different in __________.
| A．spelling | B．pronunciation | C．grammar | D．all of the above |
What is NOT mentioned(提及) in the passage?
| A．Whether there are differences between British English and American English. |
| B．Whether British English and American English are one language or two. |
| C．How the differences between British English and American English came about. |
| D．How important the differences are. |
Most __________ say “Do you have a watch?”
| A．British people | B．Americans | C．children | D．teachers |
According to this passage, British people and Americans have __________ difficulty in understanding each other.
| A．little | B．much | C．some | D．great |
While success is surely sweeter than failure, it seems failure is a far better teacher, and organizations that fail spectacularly often flourish more in the long run, according to a new study by Vinit Desai, assistant professor of management at the University of Colorado Denver Business School. Researchers have found that people missing their goals perform much better in the long run. That is because they gain more knowledge from their failures than their successes and the lessons are more likely to stay longer in their minds.
“We found that the knowledge gained from success was often fleeting while knowledge from failure stuck around for years,” said professor Desai, who led the study. “But companies often ignore failure. Managers may fire people or turn over the whole workforce while they should treat the failure as a learning opportunity.”
Prof Desai compared the flights of the space shuttle Atlantis and the Challenger. During the 2002 Atlantis flight, a piece of insulation (绝缘体) broke off and damaged the left solid rocket booster (助推火箭) but didn’t influence the program. There was little investigation. The Challenger was launched next and another piece of insulation broke off. This time the shuttle and its seven–person crew were destroyed. The disaster led to a major investigation resulting in 29 changes to prevent future disasters.
The difference in response in the two cases came down to this: Atlantis was considered a success and the Challenger a failure.
“Despite crowded skies, airlines are extremely reliable,” he said. “The number of failures is extremely small. And past researches have shown that older airlines, those with more experience in failure, have a lower number of accidents.”
Prof Desai doesn’t recommend finding out failure in order to learn. Instead, he advises organizations to analyze small failures to collect useful information rather than wait for major failures.Why did experts pay little attention to the problem of Atlantis?
| A．Because it worked perfectly. |
| B．Because the right booster was still OK. |
| C．Because nothing serious happened then. |
| D．Because fewer people died in the flight. |
Fewer accidents happen to older airlines in that _____.
| A．their planes couldn’t fly high in the sky |
| B．they gained much from experience in failure |
| C．their planes were often checked by the experts |
| D．they were unpopular among passengers |
The passage is written mainly to _____.
| A．show failure is a better teacher than success |
| B．explain why Challenger failed |
| C．introduce something about Prof Desai |
| D．tell managers how to achieve success |
Which writing strategy is NOT used in developing the passage?
| A．Giving definitions. | B．Making comparisons. |
| C．Analyzing causes. | D．Providing different examples. |
When many people see birds cleaning their feathers, they attribute it to vanity on the part of the bird. But, in reality, what they are doing is maintaining their wings, the instruments that they depend on for safe flight. If a bird’s wings are not in perfect condition, the bird either won’t be able to fly or won’t be able to control its flight. That is why after a long flight and even throughout the day, you will see them cleaning their feathers.
Most birds, if they get a chance, will take a bath at least once a day. They do this to get rid of the dust that has accumulated in their feathers throughout their flight s during the day. In dry or desert areas, birds will not always be able to find water in which to bath, but they still need to clean their feathers. What many birds will do is to take dust baths. They will roll around in dust until it covers their feathers. They will stand up, shaking the dust out, and then clean their feathers with their beaks (鸟嘴) as usual.
Baths are important for another reason. During the course of the day and night, many parasites (寄生虫) are attracted to birds. Bugs, mites, fleas and so on will try to reach birds and suck from their blood. Daily baths help to keep the parasites to a minimum.
Some birds, especially those that spend a lot of time in or around water, have skin glands (皮肤腺) that produce oil. After bathing, these birds will squeeze the glands to spread the oil over their wings to keep them free of water.
If you are a bird lover and have bird houses in your yard, it can be good to go to the extra step, providing a bird bath. Once the birds in your neighborhood discover it, you will be surprised at how popular it becomes as they periodically stop by to take their daily bath.What’s the passage mainly about?
| A．How birds clean themselves. | B．What birds enjoy doing. |
| C．Why baths matter so much to birds. | D．What bird lovers should do. |
What does the underlined part in Para 1 probably mean?
| A．Most people think it good for birds to clean their feathers. |
| B．Most people show much interest in how birds clean themselves. |
| C．Most people believe that birds’ keeping themselves clean is necessary. |
| D．Most people think birds’ cleaning their feathers of no practical significance. |
According to Para 3, birds’ feather cleaning _____.
| A．helps keep them healthy | B．keeps them free of any parasite |
| C．makes them more attractive | D．helps them relax enough |
In the last paragraph, the author further reminds us that _____ .
| A．we should love birds as much as possible |
| B．birds enjoy cleaning themselves by bathing |
| C．we can be good bird lovers by bathing birds |
| D．birds like to come close to the people in a yard |
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