With advances in contemporary design and technology, the phones may 14 remote controls, house keys, Game Boys, maps, flashlights, health monitors, recorders, handguns, and so on. __15__ , they will be “the remote-control for life.”
答案：(D) serve as
【句型】serve as + 角色/功能，固定搭配，表示「充當、扮演……的角色」，符合未來手機可以「充當」遙控器、鑰匙等多種裝置的語意。call for（需要）、get over（克服）、relate to（與……有關）都不符合這種「身兼多種功能」的語意。
四個選項都是兩個字組成的片語動詞，你會憑哪個中文順就選了它。
鑑別度高達 63。先看空格後面接的是什麼：一長串東西——遙控器、家門鑰匙、掌上遊戲機、地圖、手電筒——全都是別的裝置。所以這一句在說「一支手機同時兼任這些東西的角色」，四個選項裡只有 serve as 是「充當、兼作」，後面接的正是它扮演的那個角色。填進去讀成 the phones may serve as house keys, maps, flashlights（手機可以兼作家門鑰匙、地圖、手電筒）。serve 的兩種常見用法可以擺在一起記：serve as ＋ 角色是「充當」，serve ＋ 人或食物是「服務、供餐」。
call for（需要、要求）後面接的是所需要的東西，手機不是「需要」那些裝置；get over（克服、痊癒）後面接的是困難或疾病；relate to（與……有關）鬆散地讀起來也通、形態也吻合，容易被順手選走，但它只說得出「有關聯」，講不出「取代並兼任」這一層，與下一句「人生的萬能遙控器」那個口氣對不上。
serve as（充當、兼作）、act as（扮演……的角色）、call for（需要、要求）、get over（克服、痊癒）、relate to（與……有關）、house keys（家門鑰匙）。
The telephone is widely considered as the most rapidly evolving technological device today. Many experts in the field believe that future phones will not only look very different—they may not even be 11. They may be hidden in jewelry or accessories, or even embedded in the body. They will undoubtedly have a lot of additional features and 12 functions, and users may interact with them in new ways, too.
13 they are still called "phones"—a word meaning "voice" in Greek—making voice calls may no longer be their primary function. With advances in contemporary design and technology, the phones may 14 remote controls, house keys, Game Boys, maps, flashlights, health monitors, recorders, handguns, and so on.
15, they will be "the remote-control for life."