1 . 听下面一段独白，完成以下小题，每小题仅填写一个词。
Smartphones | ||
| Functions | * Make calls and send messages * Play games， take pictures and | |
| History | in 1992 | The first smartphone could be bought. |
| in 1997 | * Ericsson made a new phone， called the “smartphone”. * Nokia made the first phone with a color screen. * Sony made the first phone with a | |
| in 2007 | Apple started | |
| Features | * * Packed with applications and | |
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