专练10-河北省涞水波峰中学高三英语复习专项

波峰中学高三英语专练 姓名_____班级______编制 成春月 时间 编号 10 审核 _____ Ⅰ.七选五 Smartphones store a lot of personal data. These devices know our names,the names of our friends，our addresses and where we are right now. 1 A weather app needs to know where a person is to report the local forecast，for example. Many smartphone apps don't cost anything to download and use.But don't be fooled. There's still a price. 2 Those same apps may often send data on to advertisers as well.Those advertisers will pay well to know how people behave and live.Once your data leave a device，you can't get them back. And that data theft may not be harmless. Moreover，those data may tell when someone leaves home and when he gets back. 3 Social media sites often have access to a user's images and posts. Recently a new online tool has been developed to track the misuse of private data. 4 It tells people when their apps are sending data，which can help spot the misuse. SPEProxy identifies the misuse of data using an ap