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19.A San Diego boy Kristoffer Von Hassel has the gaming world's attention after he exposed a security weakness that let him log into his dad's Xbox Live account,without permission.
     Kristoffer's father,Robert,noticed soon after Christmas that his son was logging into his account and playing games that weren't appropriate for his age.When he asked how,Kristoffer showed him a hack that seems simple but is fairly impressive considering a 5-year-old found it.
      Kristoffer would go to his dad's account and type in an incorrect password.That would take him to a password verifications (确认) screen,where he would simply tap the space bar repeatedly and then press"enter."
"How awesome is that?"asked Davies,who works in online security himself."just being 5 years old and being able to find a vulnerability I ty and getting attached to that I thought that was pretty cool."He told KGTV that Kristoffer has figured out three or four other"hacks",including getting past the lock on a smartphone by holding down the"home"key for long enough.
     Davies reported the vulnerability to Microsoft.And Microsoft acted,issuing a fix for it."We're always listening to our customers and thank them for bringing issues to our attention,"the company said in a written statement."We take security seriously at Xbox and fixed the issue as soon as we learned about it."
The company has even included Kristoffer's name on a list of security researchers who have helped make online Microsoft products safer.For his discovery,or more accurately,for reporting it with his father's help,Kristoffer will receive four games.$50 and a year's subseription to Xbox Live from Microsoft.
46.Why did a San Diego boy attract the gaming world's attention?D
A.He is a security researcher.
B.He designed a new software.
C.He is addicted to playing games.
D.He got past the lock of a game.
47.The main idea of Paragraph 3 is how KristofferA
 A.logged into his dad's Xbox account
 B.managed to set his own password
C.learned to gain access to the game
D.played computer games on his own
48.The underlined word"vulnerability"in Paragraph 4 is closest in meaning to"A"
A.security failing                      
B.system protection
C.system accident                     
D.data fault
49.What is Microsoft's attitude to the problem reported by Davies?C
A.Critical and negative
B.Friendly and sympathetic.
C.Serious and responsible
D.Cold and casual.
50.What is the best title of the text?B
A.Challenging your father,even at an early age
B.Hacking Xbox,even a 5-year-old could do it
C.Microsoft,faced with security charges again
D.A 5-year-old boy subscribing to Xbox Live.

分析 文章大意:本文主要讲述了一个五岁的男孩竟在不知道密码的情况下,用父亲的账号成功地登录了Xbox Live游戏平台,从而暴露了微软公司的一个安全漏洞.

解答 46.D 细节理解题.根据第一、二段的内容可知,一个五岁的圣地亚哥男孩引起了游戏界的关注,因为他在不知道密码的情况下成功地登录了父亲的游戏账号,从而暴露了微软公司的一个安全漏洞,因此选择D.
47.A 推理判断.根据段落中的描述"type in an incorrect password"、"take him to a password verifications (确认) screen"、"tap the space bar repeatedly and then press"enter."可知第三段主要讲的是 Kristoffer如何登陆到他父亲的账户.故选择A.
48.A 词义猜测题.根据第一段中的"after he exposed a security weakness"并结合画线词所在的句子可知,vulnerability应指"安全漏洞",因此选择A.
49.C 观点态度题.根据倒数第二段中的"And Microsoft acted,issuing a fix for it."及"We took security seriously at Xbox and fixed the issue as soon as we learned about it."可知,微软公司对Davies报告的问题采取了认真负责的态度,对漏洞进行了及时的修复.因此选择C.
50.B 标题归纳题.一个五岁的男孩竟在不知道密码的情况下用父亲的账号成功地登录了Xbox Live游戏平台,从而暴露了微软公司的一个安全漏洞,因此B项最适合做文章的标题.

点评 了解文章大意.阅读理解中主旨题一般会放在第一个或最后一个考.如果放在第一个,则看完全文再做.主旨题一般会涉及文章最中心的东西.应注意看文章的第一段和每段首句进行总结

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