线索1 代词指代线索
典例片段1 (2019·河南名校模考，片段)语篇类型：议论文 主题语境：学校生活
If you were to drop in on any American high school these days, what would you see? Cell phones. Lots of them. __1__ And it's typical to see them tapping away or listening to music through their earphones.
Most schools allow students to have cell phones for safety ...
...
However, none of these supposed advantages can overcome one very basic disadvantage ...
So what's the solution? ... The effective teacher must connect with his or her students in order to hold their attention ...
A．Everyone likes using phones.
B．Virtually all students have one.
C．The teacher's goal must be to attract their desire to learn.
D．Using phones to take notes in the classroom becomes popular.
E．They can serve as notepads or as an alarm for setting study reminders.
F．Eventually, the teacher warns them that their phones will be taken away.
G．Cell phones make students fail to focus on schoolwork and class activities.
