11．If you get your news from social media，you are faced with a daily number of hoaxes（恶搞），rumors，and misleading news．When it's all mixed in with reliable information from honest sources，the truth can be very hard to judge．In face，my research team's analysis of data from Columbia University's Emergent rumor tracker suggests this false information is just as likely as to spread crazily as reliable information．
Our research shows that in view of the structure of our social networks and our limited attention，it is unavoidable that some popular unconfirmed information will spread quickly，regardless of their quality．Even if individuals tend to share information of higher quality，the networks as a whole is not effective at telling the difference between reliable and fake information．This helps explain all the hoaxes we observe in the wild．Besides，our attention is limited．If we pay attention to a certain topic，more information on the topic will be produced．It's cheaper to fake information and pass it off as fact than it is to report actual truth．
We can make our fight against false news more efficiently if we better understand how false information spreads．If，for example，robots are responsible for many pieces of the false news，we can focus attention on detecting them．
To that end，our lab is building a platform called Hoaxy to track and monitor the spread of unreliable information on social media．That will give us real-world data，with which we can inform our imitated social networks．Then we can test possible approaches to fight false news．Hoaxy may also be able to show people how easy it is their opinion to be misrepresent by online information and how likely some of us are to share false news online．Hoaxy will join a set of tools in our Observatory on Social Media，which allows anyone to see how false information spread on the Internet…
It is necessary that we spend resources on the study of this phenomenon．We need all hands on decks：Computer scientists，social scientists，economists，journalists and industry partners must work together to flight against the spread of false information．
32．What does the author say about the news from social media？B
A．It's missed and hard to tell its truth．
B．It's neither true nor worth believing．
C．It's all false and misleads us．
D．It's reliable and worth believing．
33．Some popular unconfirmed information will spread quickly because ofA．
A．its higher quality and spreading speed
B．its structure of social networks and our limited attention
C．its lower cost of fabrication and passing it of
D．the networks'not being able to tell the truth effectively．
34．Which of the following is NOT the functions of the platform called Hoaxy？B
A．tracking and monitoring the spread of unreliable news on social media．
B．testing possible approaches to flight false news．
C．helping people to see how true information spread on the internet．
D．showing people how easy it is their opinion controlled by online news．
35．What is the author's purpose in writing the text？D
A．To call on people to study and fight against false news together．
B．To let all people buy a platform called Hoaxy．
C．To warn people how seriously false news spread online．
D．To tell people how to prevent false news from spreading．
分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了为了防止虚假新闻传播建立了hoaxy平台帮助人们分辨网络信息．
解答 32．B．推理判断题．根据第一段In face，my research team's analysis of data from Columbia University's Emergent rumor tracker suggests this false information is just as likely as to spread crazily as reliable information可知作者认为社会媒体的新闻既不真实也不值得相信；故选B．
33．A．细节理解题．根据第二段Even if individuals tend to share information of higher quality，the networks as a whole is not effective at telling the difference between reliable and fake information可知一些流行的未经证实的信息将迅速传播，因为它的高质量和传播速度；故选A．
34．B．细节理解题．根据倒数第二段Then we can test possible approaches to fight false news．Hoaxy may also be able to show people how easy it is their opinion to be misrepresent by online information and how likely some of us are to share false news online可知hoaxy功能有测试航班虚假新闻的可能途径，告诉人怎么看互联网上的真实信息传播，向人们展示如何容易被歪曲的在线信息；故选B．
35．D．推理判断题．根据最后一段Computer scientists，social scientists，economists，journalists and industry partners must work together to flight against the spread of false information可知作者的写作目的是告诉人们如何防止虚假新闻传播；故选D．
点评 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．
