3 提问—回答模式(Question—Answer Pattern)
高中英语第一册(上)Unit 3 Going Places 课文第一段和Unit 9“Life On the Go”第四段都属于这一模式。例如：
(1)Why are cellphones so popular, especially among teenagers? (2) The answer seems to be that we have a need to stay in touch with friends and family no matter where we are or what we are doing. (3) Having a celphone also makes us feel safer, since we can call for help in case of an emergency. (4) Of course, to many teenagers the cellphone is not only a useful tool but also a way to have fun and be cool.