Every phone in your drawer holds a few grams of 11, the reddish metal that carries electricity through its thin 12. Cans are made of something lighter: 13, which can be melted and reused forever without losing quality. Sorting these metals used to be slow work. Now a strong 14 passes above the moving belt and lifts out everything made of steel, while machines blow the lighter pieces aside. One old factory near the port sorts eight hundred tons a week. The metal that comes out is cheaper than metal dug from the ground, and it does far less 15 to the land.
Questions 11–15
11
Acopper
Bplastic
Cdetergent
Dpetal
✔ 正確答案：(A) copper
解析同位語 the reddish metal（紅褐色的金屬）直接點出是「銅 copper」。plastic 塑膠不是金屬，detergent 清潔劑與 petal 花瓣更不可能導電。
12
Adeeds
Bpetals
Cwires
Dtubes
✔ 正確答案：(C) wires
解析carries electricity through its thin ____ 指細細的「電線 wires」。電流是由細「電線 wires」傳導；tube 管子不用於此搭配；deed 行為、petal 花瓣皆不合。
The wind farm off our coast looks simple from the beach, but each tower is a 16 of steel as tall as a church. Salt water attacks metal quickly, so every joint is painted and 17 before it leaves the factory; even so, engineers check for 18 twice a year. The farm now supplies a fifth of the island's electricity. It has not replaced the old power station in the south, which still burns fossil 19, nor the 20 plant that has been running since 1985. Together, though, the three keep the lights on.
Questions 16–20
16
Amagnet
Bwire
Ctube
Dpetal
✔ 正確答案：(C) tube
解析a ____ of steel as tall as a church 指一根高聳的鋼「管 tube」。wire 是細金屬絲，不可能像教堂一樣高；magnet 磁鐵、petal 花瓣皆不合。
17
Atolerated
Bpunched
Cwaterproofed
Dweeded
✔ 正確答案：(C) waterproofed
解析前句說 salt water attacks metal quickly，所以接合處要上漆並「做防水 waterproof」。tolerate 忍耐、punch 用拳猛擊、weed 除草皆不合。