Over the years, the Great Barrier Reef, off Australia's east coast, has grown to be 1,240 miles long. 26 up of 2,900 connected reefs, the area is home to thousands of plant and animal species.
答案：(C) Made
【句型】be made up of 字詞搭配「由……組成」，Made up of 2,900 connected reefs 是過去分詞開頭的分詞構句，表示「（這個區域）由2,900個相連的珊瑚礁組成」；Making（現在分詞，主動語意方向不合，make up作「組成」解時主詞應該是「部分」而非「整體」）、To make、Make 都不合這個被動語態的字詞搭配。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個選項是 make 的四種形態，你會開始判斷主動被動，但空格在整句的最前面、後面又跟著逗號，一時看不出它在修飾誰。
先看結構：___ up of 2,900 connected reefs, the area is home to thousands of plant and animal species.逗號後面 the area is home to ... 是完整的主要子句，所以逗號前面那一串沒有主詞、也沒有連接詞，只能是分詞構句。接著問意義主詞是誰：分詞構句的意義主詞就是主要子句的主詞，也就是 the area（這片海域）。再問主動被動：這片海域是「被 2,900 座相連的珊瑚礁組成的」，是被動，所以用過去分詞 Made。整串還原成完整的說法是 The area is made up of 2,900 connected reefs, and it is home to ...。be made up of 是「由……組成」的固定說法，與第 16 題的 be made of（由……材料製成）是同一個動詞的不同組合，可以一起記。
Making：現在分詞表主動，會變成「這片海域組成了 2,900 座珊瑚礁」，方向反了。Make：原形動詞，句子已經有主要動詞 is，不能再放一個。To make：不定詞表目的，但這一串講的是這片海域的組成，不是它存在的目的。
be made up of（由……組成）、consist of（由……構成）、be composed of（由……組成）、be home to（是……的棲地）、connected reefs（相連的珊瑚礁）、plant and animal species（動植物物種）。
Over the years, the Great Barrier Reef, off Australia's east coast, has grown to be 1,240 miles long. 26 up of 2,900 connected reefs, the area is home to thousands of plant and animal species. Much of the reef system is protected, 27 conservationists have long worried that not enough was being done to safeguard the area.
On April 3, 2010, their concerns came true. A cargo ship, Shen Neng 1, left Australia for China, carrying 65,000 tons of coal. Five hours into its 28 , the vessel strayed from its shipping lane. It plowed through a protected reef, destroying everything in its path. The damage covered an area as large as five football fields.
With more and more ships 29 the Great Barrier Reef, experts fear an even bigger accident is bound to happen. Fortunately, tougher rules are expected to 30 effect in July 2011. There are high hopes that these rules will prevent similar accidents from happening.