D magine having an app(应用程序) that works like this: When you need help, just open the app, touch the"notoK "button and a text message will be sent to five pre-selected( (预先选定的) people, along with a location(ii)to show where you are the message reads, "Hey I'm not OK. Please call me text me or come to find me US teenagers Hannah Lucas, 15, and her brother Charlie 13, have created an app called"notOK" People just need to pay $1.99 each month to use it Hannah was inspired(R &)to create the app during a dark time in her life last year. She suffered from a disease that caused her to pass out(昏倒) at schoo0 ther kids sometimes bullied(欺凌) her about this. She felt sad and wanted to find an app that would allow her to get help when she wasn 't feeling OK She asked her brother Charlie, whose nickname is"Tech Support", to find such an app When they ouldn t find one they decided to create one themselves They came up with some designs for the app first. Charlie took a programming class last summer and built a website for the app Hannah also shared her idea in her summer business ciass. Some app developers showed interest and decided to help her. At last, the app came out in the US and Canada on January 31 Hannah is happy that her app is helping others. "It makes everything I went through last year worth(值得)i,” she said 52. Who will know you 're in trouble when you touch the "notoK "button? A Five pre-selected people. B Five family members C. Five app developers D. Five close friends 53.The main purpose of inventing the app is to allow people- A. to build a website B. to take classes C to eam money D to ask for help 54. Which of the following is NOT TRUE about the app"notoK"? A. Hannah Lucas and her brother created this app B. Users can call for help by using a button in the app C. It can only send a message to one person D. Users can send their location through this app 55. What can we learn from the last two paragraphs? A. Charlie and Hannah created this app on their own B. Charlie took programming classes for many years C. Charlie and hannah earned a lot of money from this app. D. Charlie and Hannah are happy to see their app help others 56. The best words to describe the app are A simple and helpful B pleasant and dangerous
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