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          Typing your password or credit card number into a computer is a moment’s   work. But if you think your personal details disappear as soon as you hit the   Return key, think again: they can sit on the computer’s hard disk for years   waiting for a hacker to rip them off.
             
          　  As people   spend more time on the web and hackers become more sophisticated, the dangers   of storing personal information on computers are growing by the day, security   experts say. There are some safeguards, such as never allowing your computer   to store your passwords. But even that is no guarantee of security.
             
          　  When you type   in a password, it is stored in random access memory (RAM), where it is held   temporarily until other data overwrites it or the computer is switched off.
             
          　  But every so   often, the computer copies the contents of its RAM onto hard disk, where it   is easy prey for a hacker, who can read it directly or design a worm to   e-mail it back. The longer sensitive data stays in RAM, the more likely it is   to be copied onto the disk, where it stays until it is overwritten—which   might not happen for years.
             
          　  Tal Garfinkel   and colleagues from Stanford    University have created   a software tool which simulates the workings of a complete computer system.   Within the simulation, sensitive data can be tagged and then tracked as it   passes through the system. Next, Garfinkel and his team simulated computers   running common software that regularly handles passwords or confidential   personal information, such as Internet Explorer, the Windows login script and   Apache server software.
             
          　  In a paper to   be presented, they conclude that the programs took virtually no measures to   limit the length of time the information is retained. Some of the tested   software even copied the sensitive information, apparently without restraint.
             
          　  This is the   first time anyone has tried to measure the extent of this problem, says   Rebecca Wright, a security expert at Stevens Institute of Technology.   Garfinkel hopes the results will arouse software developers to take action.
             
          1．Which of the following statements is   true according to the passage?
             
          　  A．It is secure to use your password as long as you hit the Return   key.
             
          　  B．Your personal details is likely to be in danger if you spend more   time on the web.
             
          　  C．Your password will be safe if you have some safeguards.
             
          　  D．Never allowing your computer to store your passwords will be safe.
             
          2．Which of the following is NOT the   reason for the unsafety of a password?
             
          　  A．It will be stored in RAM.
             
          　  B．It will be copied onto hard disk.
             
          　  C．It might not be overwritten.
             
          　  D．It will disappear as soon as you hit the return key.
             
          3．Tal Garfinkel and his team measured   the extent of security of　　　  .
             
          　  A．simulating the working of a complete computer system
             
          　  B．tagging sensitive data
             
          　  C．passing through the system
             
          　  D．running common software
             
          4．What can be inferred from the   passage?
             
          　  A．The length of the time the information is stored is not limited.
             
          　  B．The programs can not retain the information.
             
          　  C．The security problem should be paid more attention to.
             
          　  D．Some sensitive information has been copied.
                       		  
           
            
           
          			
          


			
		
          
		
				
          
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				科目：高中英語(yǔ)
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          Call 264  8833
          Use form given
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          Course Charge: $125
          Materials Charge: $25
          Two hours each evening for two weeks. 
          This course is taught by a number of business education teachers who have successfully taught typing courses before. 
          55. The word “professional” in this advertisement most probably means “_____”. 
           A. spiritual       B. journalist    C. professor         D. experienced 
          56. The shortest course is _____. 
           A. Basic Photography                B. Understanding Computers
           C. Stop Smoking                    D. Typing
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           A. on Saturdays and Sundays  B. from Monday to Friday
           C. from Monday to Saturday   D. on each day in the week
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          A. Basic Photography                B. Understanding Computers
           C. Stop Smoking                    D. Typing
          

			
          

			
          
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				科目：高中英語(yǔ)
				來(lái)源：20102011山西晉中高三第三次全真模擬試題
				題型：閱讀理解
			
          

						
          Register （注冊(cè)） in person, by phone 264-8833,or by mail. Use form
given.
          


            178 IN Winchester St., Chicago
          


            Basic
Photography This is an eight-hour course for beginners who want to learn how
to use a 35mm camera. The teacher will cover such areas as kinds of film, light and lenses （鏡頭）. Bring your own 35mm camera to class. Course charge: $ 50. Jan. 10, 12, 17, 19, Tues. &Thurs. 6:00-8:00 pm. Marianne Adams is a professional photographer whose photographs appear in many
magazines.
          


            Understanding
Computers  This twelve-hour course is for people who do not know much
about computers, but need to learn about them. You will learn what computers
are, what they can and can’t do, and how to use them. Course charge: $ 75.
Equipment charge: $10. Jan. 14, 21, 28, Sats. 7:00-9:50 pm. Joseph Saimders is
Professor of Computer Science at New Urban University.
          


          He has over twelve
years of experience in the computer field.
          


          Stop Smoking  Do you want to stop smoking? Have you already
tried to stop and failed? Now it’s the time to stop smoking using the latest
methods. You can stop smoking, and this twelve-hour course will help you do it.
Course charge: $ 30. Jan. 4, 11, 18, 25, Wends. 4:00-7:00 pm. Dr. John Goode is
a practicing psychologist （心理學(xué)家） who has helped
hundreds of people stop smoking.
          


          Typing  This course on week-days is for those who want to learn to type,
as well as those who want to improve their typing. You are tested in the first
class and practice at one of eight different skill levels. This allows you to
learn at your own speed. Each program lasts 20 hours. Bring your own paper.
Course charge: $125. Materials charge: $ 25. Two hours each evening for two
weeks. New classes begin every two weeks. This course is taught by a number of
business education teachers who have successfully taught typing courses before.

          


          1.
          


          All the courses
listed above are offered to the people         .
          


               A．who live in the city of Chicago                B．who are free in the evening
          


               C．who want to take some special courses  D．who like to learn something new
          


          2.
          


          Of all the courses
mentioned in the passage, the shortest one is           .
          


                 A．Understanding Computers           B．Basic Photography
          


                 C．Stop
Smoking                        D．Typing
          


          3.
          


          There are typing
courses           .
          


                 A．on Saturdays and
Sundays        B．from Monday to Friday
          


                 C．from Monday to Saturday        D．on each day in the week
          


           
          

			
          

			
          
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