英语四级

单项选择题
1、听录音，
回答题

A． The woman is fussy about the cleanness of the apartment.
B． He has not cleaned the apartment since his mother's visit.
C． He does not remember when his mother canoe over.
D． His mother often helps him to clean the apartment.


2、Questions are based on the following passage.
More and more, the operations of our businesses, governments, and financial institutions are con- trolled 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's 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's 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 (诈骗)the most confidential (保密)records right under the noses of the company's executives, accountants, and security staff. And so another computer criminal departs with just the recommendations he needs to continue his crimes elsewhere.
It can be concluded from the passage that
A．it is still impossible to detect computer crimes today
B．people commit computer crimes at the request of their company
C．computer criminals escape punishment because they can't be detected
D．computer crimes are the most serious problem in the operation of financial institutions


3、Questions  are based on the following passage．
At the beginning of the last century，the railroads were used to transport everythin9．Powerful businessmen made36 __ without having to be responsible for the public or  37 __ of the customers．But cars and trucks changed all of that．And by l970．from all directions the rail industry was troubled with problems．Trucks were taking all the new business．And even so．the rail industry remained 38 __ to customers．Also many regulations kept the rail industry from adjusting to shifting markets．But in l980，the rail industry entered the modern era when a deregulation was passed that allowed railroad companies to makequick39 __ to the old practices．Companies reduced their lines by l／3 and used fewer employees．They also took steps to 40 __  damage to products to smallest possible degree and to increase their shipping 41 __  by piling freight containers on railroad cars．To accommodate these taller loads．underpasses and tunnels were 42 __．The image of the rail industry has changed  43 __．Today，companies are very sensitive to customers and are gaining increasing market shares in shipping industry．The railroad safety record is also stron9．Freight trains have an44 __ rate that is only l／30f that of the truck industry．Trains are also known as ahead of the trucks on environmental grounds．Because they give off only l／10 t01／3 the pollution that is 45  __  by trucks．And railroading does not wear out highways as trucks do．