Question

7．What is big data exactly？Good question．After all，we've always had large amounts of data．As Laurie Miles，head，of analytics for big data specialist SAS，says，"The term big data has been around for decades and we've been，doing analytics all the time．It's not big； it's just bigger．"Most traditional data was structured，or neatly organized in databases．Then the world went digital and the Internet came along．Most of what we1 do could be translated into data capable of being recorded，stored，searched，and analyzed．There was also so-called unstructured data generated by all our digital interactions （互动），from emails to online'shopping，text messages to tweets，and Facebook updates to YouTube video's．
Some say that about 90% of all the data in the world today has been created in the past few years．"About 75% of data is unstructured，coming from sources such as text voice and video，"says Mr Miles．
"Big data is not just historic business intelligence，''says Mr，Miles．"It's the addition of real-time data and the ability to combine together several data sets that makes it so valuable．"Practically，anyone who makes，grows and sells anything Can use big data analytics to make their manufacturing and production processes more efficient arid their marketing more targeted and cost-effective．
And many businesses are only just beginning to realize that data is something that they need to protect and use．"Banks only use a third of their available data because it often sits in databases that are hard to access，"says Mr Miles，"We need to find ways to make this data more easily accessible．"
Who owns it all？Social media platforms will often，say that their users own their own content，but then lay claim to how that content is used，reserving the right to share it with third parties!So when you tweet you effectively give up any control over how that tweet is used in future，even though Twitter terms and conditions say，"What's yours is yours．"Privacy （隐私） and intellectual property1 laws have not kept up with the pace of technological change．

32．According to the first paragraph，big dataD．
A．is also called modern data                         
B．means we don't have enough data
C．gets its name from a research institute        
D．has been researched for many years
33．What contributes greatly to the development of unstructured data？B
A．The increasing number of databases．
B．Our increasing exposure to digital activities．
C．A great decrease in structured data．
D．The lack of people who can translate data．
34．What is the third paragraph mainly about？B
A．The future of big data．
B．The value of big data．
C．The protection of big data．
D．The problems of big data．
35．Why do banks only use a small part of their data？D
A．Because it has different resources．
B．Because the speed is too slow．
C．Because the cost is very high．
D．Because it is difficult to obtain．

Answer 1

分析 本文讲述了大数据时代的到来得益于数字科技的发展，但是由此而来的隐私问题也受到人们的关注．

解答 DBBD
32．D 考查细节理解．根据"The term big data has been around for decades and we've been，doing analytics all the time"可知，大数据是指已经研究了很多年的数据．故选D．
33．B 考查细节理解．根据"Most of what we1 do could be translated into data capable of being recorded，stored，searched，and analyzed．There was also so-called unstructured data generated by all our digital interactions"可知，我们对数字科技活动有越来越多的接触，这对非结构化数据的开发有很大的帮助．故选B．
34．B 考查段落大意．根据"It's the addition of real-time data and the ability to combine together several data sets that makes it so valuable"可知，第三段讲述了大数据的价值．故选B．
35．D 考查细节理解．根据"Banks only use a third of their available data because it often sits in databases that are hard to access"可知，因为很难访问消费者的信息，所以银行只使用他们数据的一小部分．故选D．

点评 阅读理解考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．