文都：2008年12月英語四級全真預(yù)測試卷(五)

　　Section C

　　Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard. For blanks numbered from 44 to 46 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the main points in you own words. Finally, when the passage is read for the third time, you should check what you have written.

　　In police work, you can never (36) the next crime or problem. No working day is identical to any other, so there is no “(37)” day for a police officer. Some days are (38) slow, and the job is (39) ; other days are so busy that there is no time to eat. I think I can (40) police work in one word: (41) . Sometimes it�餾 dangerous. One day, for example, I was working undercover; that is, I was on the job, but I was wearing (42) clothes, not my police (43) . I was trying to catch some robbers who were stealing money from people as they walked down the street. Suddenly, (44) . Another policeman arrived, and together, we arrested three of the men; but the other four ran away. Another day, I helped a woman who was going to have a baby. (45) . I put her in my police car to get her there faster. I thought she was going to have the baby right there in my car. But fortunately, (46).

　　Part ⅣReading Comprehension(Reading in Depth)(25 minutes)

　　Section A

　　Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.

　　Questions 47 to 56 are based on the following passage.

　　The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the 47computer in business class. In the last 15 years, pilots have reported well over 100 48that could have been caused by electromagnetic interference. The source of this interference 49unconfirmed, but increasingly, experts are pointing the blame at portable electronic device such as portable computers, radio and cassette players and mobile telephones.

　　RTCA, an organization which advises the aviation(航空)industry, has recommended that all airlines ban(禁止)such devices from being used during “ 50” stages of flight, 51take�瞣ff and landing. Some experts have gone further, calling for a total ban during all flights. Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take�瞣ff and landing, most are 52to enforce a total ban, given that many passengers want to work during flights.

　　The difficulty is 53how electromagnetic fields might affect an aircraft�餾 computers. Experts know that portable device emit radiation which54those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not.

　　The fact that aircraft may be vulnerable(易受損的)to interference raises the risk that terrorists may use radio systems in order to damage navigation 55. As worrying, though, is the passenger who can�餿 hear the instructions to turn off his radio because the music�餾 too 56.

　　[A]definite[B] incidents[C] effects[D] remains

　　[E] critical[F] particularly[G] reluctant[H] refreshing

　　[I] portable[J] enormous[K] predicting[L] liberal

　　[M] affects[N] equipment[O] loud

　　Section B

　　Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked [A], [B], [C] and [D].You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.

　　Passage One

　　Questions 57 to 61 are based on the following passage.

　　More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap big reward. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment.

　　It�餾 easy for computer crimes to go undetected if no one checks up on what the computer is doing. But even if the crime is detected, the criminal may walk away not only unpunished but with a glowing recommendation from his former employers.

　　Of course, we have no statistics on crimes that go undetected. But it�餾 disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommonly bad luck.

　　Unlike other lawbreakers, who must leave the country, commit suicide, or go to jail, computer criminals sometimes escape punishment, demanding not only that they not be charged but that they be given good recommendations and perhaps other benefits. All too often, their demands have been met.

　　Why? Because company executives are afraid of the bad publicity that would result if the public found out that their computer had been misused. They hesitate at the thought of a criminal boasting in open court of how he juggled (詐騙) the most confidential (保密)records right under the noses of the company�餾 executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.