下列各句中,划线词的活用现象与例句相同的一项(     )
例句：后秦击赵者再，李牧连却之。

There is a new movie Invisible guest(看不见的客人) on show. Li Hua and her parents will watch it. They can go there airy day. Please help her work out which is the lowest price for them.

Invisible guest Tuesday evening￥60                 Sunday￥80 If you have a student card, you can have a discount of 40% off If there are three persons, you can have a family price 132 for three(except weekends)

读下图，结合所学知识，完成下列各题。

近代中国面临着严重的民族危机，无数仁人志士都在探索救国救民的出路，下列有关中国人“向西方学习”历程表述正确的是（    ）

曲线y=1+ $\sqrt{4-x^2}$ 与直线y=k（x﹣2）+4有两个交点，则实数k的取值范围是____．