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Thanks to the GPS, the apps on your phone have long been able to determine your general location. But what if they could do so with enough precision that a supermarket, say, could tempt you with digital coupons depending on whether you were hovering near the white bread or the bagels It may sound far-fetched, but there’s a good chance the technology is already built into your iPhone or Android device. All it takes for retailers to tap into it are small, inexpensive transmitters called beacons. Here’s how it works: using Bluetooth technology, handsets can pinpoint their position to within as little as 2cm by receiving signals from the beacons stores install. Apple’s version of the concept is called iBeacon; it’s in use at its own stores and is being tested by Macy’s, American Eagle, Safeway, the National Football League and Major League Baseball. Companies can then use your location to pelt (连续攻击) you with special offers or simply monitor your movements. But just as with GPS, they won’t see you unless you’ve installed their apps and granted them access. By melding your physical position with facts they’ve already collected about you from rewards programs, brick-and-mortar businesses can finally get the potentially profitable insight into your shopping habits that online merchants now take for granted. The possibilities go beyond coupons. PayPal is readying a beacon that will let consumers pay for goods without swiping a card or removing a phone from their pocket. Doug Thompson of industry site Beekn.net predicts the technology will become an everyday reality by year’s end. But don’t look for stores or venues to call attention to the devices. "People won’t know these beacons are there," he says. "They’ll just know their app has suddenly become smarter." iBeacon is being tested by the following except ______.
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It’s a safe bet that David Joyce knows more than you did when you were his birth age. That’s not hard, since what you knew back then was pretty much nothing at all. You knew warmth, you knew darkness, you knew a sublime, drifting peace. You had been conceived 29 weeks earlier, and if you were like most people, you had 11 weeks to go before you reached your fully formed 40. It was only then that you’d emerge into the storm of stimuli that is the world. No such luck for David. He was born Jan. 28—well shy of his April 16 due date—in an emergency cesarean (剖腹产的) section after his mother had begun bleeding heavily. He weighed 2 lb. 11 oz., or 1,200g, and was just 15 in. (38cm) tall. An American Girl doll is 3 in. (8cm) taller. Immediately, he began learning a lot of things—about bright lights and cold hands, needle sticks and loud noises. He learned what it feels like to be hungry, to be frightened, to be unable to breathe. What all this meant was that if David wanted to stay alive, he’d have to work hard at it, and he was. Take drinking from a bottle—which he had never tried until a morning in late March, at the neonatal intensive care unit (NICU) of the Children’s Hospital of Wisconsin in Milwaukee. David had spent every day of his then seven-week life there, in the company of 58 other very fragile babies being looked after by a round-the-clock SWAT team of nearly 300 nutritionists, pharmacologists, pulmonary specialists, surgeons, nurses and dietitians and, for when the need arises, a pair of chaplains. Under their care, he had grown to 18.1 in (46cm) and weighed 5lb. 11.5 oz. (2594g), nourished by breast milk from his mother, which was fed to him through a nasogastric tube (鼻胃管) threaded through his nose to his stomach. David’s father and mother live 90 minutes away in Randolph, Wis. They had been at the hospital every day after work for 51 days straight at that point—a three-hour round-trip—to spend a few more hours with David. David was born ______.
Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. It sounds like a real-life version of Lost: a 272-ton Boeing 777 1 from Kuala Lumpur International Airport and 2 less than an hour into a flight to Beijing, disappearing from air-craft radar screens and triggering a massive search 3 high-tech warships, nimble supersonic jets, all-seeing satellites—the combined technological resources of 26 countries. Days 4 without a trace of the airliner. Big Brother looks high and low—and finds 5 . The world lost 6 with Malaysia Airlines Flight 370 in the early hours of March 8, somewhere in no-man’s-sky 7 Malaysia and Vietnam. Every day that followed brought new theories of what might have happened as dark turned to dawn. Was the plane hijacked to some remote landing strip and, if so, where are the passengers 8 had the jet malfunctioned and 9 into the ocean-and if so, where was the debris As search team looked for answers to these questions, the millions of people worldwide who were 10 for updates about MH370 were left wondering how, in 2014, technology could come up so short, 11 a 209-ft. (64m) airliner carrying 239 people to 12 for the longest period of time in modern commercial aviation history. The 13 story of MH370 doesn’t fit into the narrative of our omniscient (无所不知的) era. The world’s intelligence agencies can watch and 14 to millions of us as we go about our lives. 15 we nonspies have plenty of tracking technology at our disposal. Pull up a web browser and with a few keystrokes we can 16 our lost iPhones, track satellites as they circle the earth, use Google Maps to explore far-off lands. How, then, with our 17 infrastructure of bits and bytes, did we fail to 18 a jumbo jet The answers are disturbing. For all the post-9/11 security protocols we submit to every time we get on a plane, much of the basic 19 that is meant to track our progress through the sky is full of holes. And even our most modern 20 can be rendered invisible by the human hand.
如何对社会认知的印象进行整合与整理
简述研究晕轮效应的现实意义。
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