8.(2011·湖北卷)E

Which are you more likely to have wath you at sny given mement-your cell phone or your wallet? Soon you may be able to throw your wallet away and pay for things with a quick wave of your smart phone over an electroue scannet.

In January, Starbucks announced that customers could start using their phones to buy coffee in 6,800 of its states. This is the first pay by phone practice in the U.S., but we’re likely to see more witeless payment alternatives as something called ucar field communcation(NFC)GETS IN TO America’s consumet electanies. Last Deccmbet some new smart phanes which cantain an NFC chip were introduced to the midlit.

Already in use in part of Asia and Europe, NFCtheir plan a few incees live a payment tetminal a one a few ptaht need to be worked out, like who will get to collect the profitable trunsacian(交易)fees. Although some credit card providers have been experimenting with wave and pay systems that use NFC enabled credit cards, cellphone service providers truay try to mused their way into the point of sale (POS)market. Three big gellphone service providers have formed a joinf tenture(合资企业)that will go into opention over the next i15 months. Its goal is“to lead the U.S. payments industry from cards to mobile phone.”

The other big NFC sue, apart from how paymeats will be processed, is security, For instance, what’s to stop a thief from digitally pickpocketing you? “We’re still not at the point where an attacker can just brush against yee in a crowd and steal all the money out of your phone,”says Jimmy Shah. A mobile security rescarcher, “Usera may also be able to set transaction timeits,requiring a password to be enteced for larger putchases.

Bus siness? Keep in mund you lost your smart phone, it can be located on a located on a map and remotely ned Plus, your phone can be password protected, Your wallet isn’t.

7.(2011·湖北卷)B

   Howling is a behavior commonly observed among a wolf nark. An animals, wolves work together to hunt and rely on howling was an important means of communication each other. There are different explants of a wolf’s howl and it appears that there may be more to discover.

   One theory is that wolves howl to bend better together. It’s almost as if howling together helps the pack stay together. Perhaps something similar to people feeling a sense of involvement with each other when singing a song together . But this theory may be wrong, explains Fred H. Harington, a professor who studies wolf behavior.

   Indeed, there have been tines when wolves have been seen one moment howling in a exhorts, and the next, quarreling anions each other. It appears that usually the lowest-tanking menthes of the pack may actually be “punished” for Joining in the churs at times. So is howling a way to strcagthen a social boad or just a way to reconfirm status among its members? --Why do welves howl for sure?

What is cleat, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that woloves may separate from one another at times. When this happens, howling appcars to be an ercellent means of gathering.

 Howling, interestingly, is a contagious behaviour. When one wolf starts to howl, very likely others will follow. This is often seen to occat in the morning, as if wolves were doing some sotr of “roll rall”where wolves all howl togeter to howl, very likely others will follow. This is often seen to occar in the morning, as if wolves were doing w some sotr of “roll call”where wolves all howl together to repotr their pteence.

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