All the people who went to the new supermarket had one great hope: to be the lucky customer who did not have to pay for his shopping. For this was what the notice just inside the entrance promised. It said, "Remember, once a week, one of our customers get

Read the passage carefully to find the answers for Questions 1 to 5. Answer each question in a maximum of 10 words. Remember to write the answers on the Answer Sheet.　　Questions 1to 5are based on the following passage.　　In many businesses, computers have largely replaced paperwork, because they are fast, flexible, and do not make mistakes. As one banker said, “Unlike humans, computers never have a bad day.” And they are honest. Many banks advertise that their transactions are “untouched by human hands” and therefore safe from human temptation (诱惑). Obviously, computers have no reason to steal money. But they also have no conscience (良知), and the growing number of computer crimes shows they can be used to steal.　　Computer criminals don’t use guns. And even if they are caught, it is hard to punish them because there are no witness and often no evidence. A computer cannot remember who used it: it simply does what it is told. The head teller at a New York bank used a computer to steal more than one and a half billion dollars in just four years. No one noticed this theft because he moved the money from one account to another. Each time a customer he had robbed questioned the balance in his account, the teller claimed a computer error, then replaced the missing money from someone else’s account. This man was caught only because he was a gambler. When the police broke up an illegal gambling operation, his name was in the records.　　Some employees use the computer’s power to get revenge (报复) on their employers they consider unfair. Recently, a large insurance company fired its computer-tape librarian for reasons that involved her personal rather than her professional life. She was given thirty days notice. In those thirty days, she erased all the firm’s computerized records.　　Most computer criminals have been minor employees. Now police wonder if this is “the tip of the iceberg”. As one official says, “I have the feeling that there is more crime out there than we are catching. What we are seeing now is all so poorly done. I wonder what the real experts are doing—the ones who know how a computer works.”　　Questions:1．What is the passage mainly about?　　2．Why did many banks claim the transactions to be safe?　　3．How did the bank teller cover up his crime?　　4．What must the librarian do thirty days after she received the notice?　　5．What is the difference between computer criminals and ordinary criminals?

Practice 3　　So let us mark this day with remembrance, of who we are and how far we have traveled. In the year of America’s birth, in the coldest of months, a small band of patriots huddled by dying campfires on the shores of an icy river. The capital was abandoned. The enemy was advancing. The snow was stained with blood. At a moment when the outcome of our revolution was most in doubt, the father of our nation ordered these words be read to the people:　　“Let it be told to the future world… that in the depth of winter, when nothing but hope and virtue could survive… that the city and the country, alarmed at one common danger, came forth to meet [it].”　　America. In the face of our common dangers, in this winter of our hardship, let us remember these timeless words. With hope and virtue, let us brave once more the icy currents, and endure what storms may come. Let it be said by our children’s children that when we were tested we refused to let this journey end, that we did not turn back nor did we falter; and with eyes fixed on the horizon and God’s grace upon us, we carried forth that great gift of freedom and delivered it safely to future generations. (Barack Obama: Inaugural Address)