17.A credit card that won't work unless its owner's voice is heard may become an important weapon in the fight against economic fraud(欺诈).
The card using a built-in voice-recognition chip requires users to give a spoken password that it recognizes.The idea is to prevent thieves from using a stolen card to buy goods online.
A model built by engineers in California packs a microphone,a loudspeaker,a battery and a voice-recognition chip into a standard-sized credit card.The card is the length and width of an ordinary credit card but about three times as thick.The company now plans to make it thinner.
The voice card is based on an earlier Beep card technology designed to prevent fraud in online deals.The Beep card has no microphone,but has a built-in loudspeaker to utter an audible (听得见的) ID signal by a computer's microphone to an online server(服务器).By confirming that signal matches the information in the card,the server can make sure that the user is not simply keying in a credit card number but actually has the card in his hand.The ID code,which only the server knows,changes each time the card is used.
This prevents fraudsters recording the beeps,noting the card details and then playing back the audible ID when they key in the details later.But this earlier Beep card technology cannot prevent illegal use of stolen cards.The new voice card can.The new voice card doesn't identify itself by its ID until it has confirmed the real user's spoken password.Thieves will be unable to use the card because even if they knew the password they would have to be able to copy the owner's voice with a high degree of accuracy.The challenge for Beep card has been to develop voice-recognition and audio circuitry(声音电路).
The voice-recognition credit is powered by a mini battery.To extend batter life,the electronics have only to be switched on when the card is being used.Pressing a button on the card's surface allows one to hear a female voice saying,"Say your password."If the voice-recognition software proves that the password is real,it sends its ID,which the server then identifies,allowing the deal to continue.
59.Why is the voice credit an important innovation?D
A.It is cheap to make and buy.B.It can leave voice messages.
C.It makes online shopping easy.D.It makes fraud more difficult.
60.What is the problem with the model card?B
A.It is too large.B.It is too thick.
C.It can't be used online.D.It has no loudspeaker.
61.Which of the following about the earlier card is TRUE?D
A.Its owner can change the ID code at will.
B.Its user needn't key in the credit card number.
C.It can record its user's spoken password.
D.It can be used by someone who has stolen it.
62.What can we infer from the last paragraph?A
A.Further improvement should be made to extend battery life.
B.Only female voice passwords can be recognized by the card.
C.There are no limits to the use of the card.
D.Female customers will like using it.
分析 本文主要介绍了一种新型的信用卡,可以利用声音来进行消费使用,比传统的信用卡更安全方便,但也有自己的缺点.
解答 59-62DB DA
59.D 根据A credit card that won't work unless its owner's voice is heard may become an important weapon in the fight against economic fraud(欺诈).可知利用声音识别的信用卡可以使欺诈变得更难,故答案为D
60.B 根据The card is the length and width of an ordinary credit card but about three times as thick.可知,model card更厚一些,故答案为B
61.D 根据But this earlier Beep card technology cannot prevent illegal use of stolen cards.可知以前的信用卡会被盗刷,故答案为D
62.A 根据To extend batter life,the electronics have only to be switched on when the card is being used.可知,延迟电池的寿命是下一步需要提高的地方,故答案为A
点评 做阅读时经常犯错的主要原因是,仅凭读过文章后残留在脑海中的一丝印象来勾选答案,这样便很容易掉入出题人故意设布下的题目陷阱.所谓阅读理解,对于题目的理解一定要忠实于原文,因此,每一道题都应该与原文作全面的对比与核查,再得出答案.也就是说,阅读理解的每一道题目,在原文都应该有明确的出处,我们把这一出处叫做原文相关句,(1)排除与原文相关句主题不一致的选项(2)排除与原文相关句态度相反的选项 (3)排除用于过于极端或负面的选项(4)注意结合文章主旨和主题去排除.