【答案】　1－4　BDBD

　　【语篇解读】　作者认为父母没必要通过社交工具实时掌握他们的孩子在大学的情况。

　　1．That friend scrolled through photos on her phone most probably because ________.

　　A．she was bored and wanted to kill the time

　　B．she wanted to make sure her daughter was alright

　　C．she wanted to help her daughter through the difficulty

　　D．she was sure something was wrong with her daughter

　　【解析】　推理判断题。根据第一段的Her daughter had recently had a difficult time，which was now over，but her mother—like all mothers would—still worried，sometimes，that something might be wrong.可知，作者的那位朋友是想确认她的女儿是否一切安好。

　　【答案】　B

　　2．What does Paragraph 2 tell us about parents of college students in the past?

　　A．They were often worried about their children.

　　B．They usually let their children do whatever they liked.

　　C．They were usually too busy to care about their children.

　　D．They lacked means of knowing about their children's situation.

　　【解析】　细节理解题。根据第二段的For generations of parents，sending children off to college meant knowing little to nothing about how their children were doing.以及．..their parents would know nothing about it until Christmas vacation or summer break.可知，过去的父母缺少了解他们的小孩在大学里情况的途径。

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