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  3. Given the advantages of electronic money, you might think that we would move quickly to the cashless society in which all paymen

Given the advantages of electronic money, you might think that we would move quickly to the cashless society in which all paymen

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问题     Given the advantages of electronic money, you might think that we would move quickly to the cashless society in which all payments are made electronically.【C1】________, a true cashless society is probably not around the corner. Indeed, predictions of such a society have been【C2】________for two decades but have not yet come to fruition. For example, Business Week predicted in 1975 that electronic means of payment "would soon revolutionize the very【C3】________of money itself," only to【C4】________itself several years later. Why has the movement to a cashless society been so【C5】________in coming?
    Although electronic might be more convenient and may be more efficient than a payments system based on paper, several factors work【C6】________the disappearance of the paper system. First, it is very【C7】________to set up the computer, card reader, and telecommunications networks necessary to make electronic money the【C8】________form of payment. Second, paper checks have the advantage that they【C9】________receipts, something that many consumers are unwilling to【C10】________. Third, the use of paper checks gives consumers several days of "float"—it takes several days【C11】________a check is cashed and funds are【C12】________from the issuer’s account, which means that the writer of the check can earn interest on the funds in the meantime.
    【C13】________electronic payments are immediate, they eliminate the float for the consumer.
    Fourth, electronic means of payment【C14】________security and privacy concerns. We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information【C15】________there. The fact this is not an【C16】________occurrence means that dishonest persons might be able to access bank accounts in electronic payments systems and【C17】________from someone else’s accounts. The【C18】________of this type of fraud is no easy task, and a new field of computer science is developing to【C19】________ security issues. A further concern is that the use of electronic means of payment leaves an electronic【C20】________that contains a large amount of personal data on buying habits. There are concerns that government, employers, and marketers might be able to access these data, thereby violating on our privacy.
【C11】
选项 A、before
B、after
C、since
D、when
答案A
解析 从四个选项也可以看出本填空的前后信息是时间逻辑关系。本填空所在的句子位于破折号之后，即作为同位语对破折号之前的float(缓冲期，时间差)进行说明和解释。又根据本句子之后which引导的定语从句，即the writer of the check can earn interest on the funds in the meantime (开出支票的人可以同时赚取此资金的利息)，综合判断答案应该为A项before(之前)，代入文中本句子的意思是：支票被兑换和资金从支付人账户转出之前需要几天时间。也只有这样，which引导的定语从句所说的“开出支票的人可以同时赚取此资金的利息”才能成立。选项B项after(之后)、C项since(自从)和D项when(当……时候)在逻辑上都讲不通，因为按照这三者的时间关系，开票人都不可能再赚取此资金的利息。
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