科普说明(二)
Ⅰ.完形填空。
Apple's iPhones may be the most popular mobile phones in the world now.Not only do adults like to use them，__1__ little children also like them.
Natasha Sykes is a mother of two children in America.When her daughter，Kelsey，was only two years old，she became __2__ in her father's iPhone.
“She pressed the button(按钮) and the phone lit up.It seemed to be __3__ for her，” said Natasha.“Then she got serious about the phone.She always __4__ for it.It seemed that she also wanted an iPhone.”
