题目

香菇是人们喜爱的一种食用真菌。下列描述不符合其特征的是（） A . 无成形的细胞核 B . 自身不能制造有机物 C . 可利用孢子繁殖 D . 生态系统中的分解者 答案：AWhen you’re surfing the Internet on your laptop from your dorm or home, do you know your personal details are being gathered secretly? And would you be surprised to know the information may be sold cheaply to advertisers and marketers?According to an investigation by The Wall Street Journal, all it takes is a tiny file in a computer-a single code consisting of a long series of numbers and letters- to record the computer user’s age, gender, location, favorite movies and hobbies.The newspaper reports that Lotame Solutions Inc., a New York company, uses sophisticated(高科技) software called a "beacon" to capture what people are typing on a website.Lotame packages that data into profiles（个人资料）about individuals, only without their names, and sells the profiles to companies seeking customers.Batches of such data may be sold for a few dollars.The Wall Street Journal survey discovered that spying on Internet users is one of the fastest-growing businesses on the World Wide Web.The "cookie"- a tiny text file put on your PC by websites or marketing firms which might be used to remember your preferences for one site, or to track you across many sites is already old news.There are new and more complex tools such as "beacons" which scan in real time what people are doing on a webpage.These beacons instantly assess the Internet user’s location, income, shopping interests and even medical conditions.Millions of Internet users around the world also face unprecedented（空前的）threats.Private, sensitive, personal and business information is being gathered and sold without their knowledge.Companies insist the information they gather is anonymous and the data is used harmlessly. But the technology has grown so powerful that even some of the biggest websites in the US don’t know that they were installing intrusive files on visitors’ computers.These include MSN.com and Yahoo.com.Next time you visit a webpage and find an ad banner advertising something you’ve been planning to buy, don’t be amazed that your computer can read your mind.1.The purpose of the passage is to          .A.introduce a tiny file in a computer-a single codeB.show how your individual information was let out when you surf the InternetC.show how to protect your privacyD.introduce a sophisticated software called a "beacon"2..All of the following statements are Wrong except          .A.Lotame sells the profiles about individuals to companies seeking customers with their age, gender, location, hobbies and namesB.spying on Internet users is the fastest-growing businesses on the World Wide WebC.some of the biggest websites in the US know they were installing intrusive files on visitors’ computersD.a tiny file in a computer-a single code consisting of a long series of numbers and letters can record users’ information3.It can be inferred that          .A.because the data is used harmlessly.Internet users around the world will not face threatsB.when a person surf the Internet, his personal details may be let out without his knowledgeC.your computer can really read your mindD.MSN.com and Yahoo.com.use software to capture what people are typing on a website4.According to the passage, “beacon”          .A.is a tiny text file put on your PC by websitesB.is a soft ware that can package that data into profiles about individualsC.can assess the Internet user’s location, income, shopping interests and even medical conditionsD.is not more complex than the "cookie"5.What’s the writer’s attitude to this problem?A.NeutralB.WorriedC.OptimisticD.Indifferent