The study warned that Papua’s glaciers are only the “first to go” if greenhouse gases are 30 and temperatures continue rising.
答案：(D) left unchecked
leave sth unchecked 是「放任不管、不加抑制」，本句指「若溫室氣體未受抑制」；kept balanced（維持平衡）與後半句 temperatures continue rising 自相矛盾，made released、seen dismissed 兩組動詞搭配本身就不成立。
答對率 17%。
check 在你腦中就是「檢查」，所以 unchecked 被讀成「沒被檢查的」，語意一怪就跳過。其實 check 當動詞另有「抑制、阻止」的意思（check the spread of a disease 遏止疾病擴散），unchecked 就是「未受抑制、放任不管」。這種「認得的字、考的卻是它少見的那個意思」，是克漏字最愛設的陷阱。
四個選項都是「動詞＋過去分詞」，考的是 leave／keep + 受詞 + 補語 的句型：leave sth unchecked／unattended／unfinished，意思是「讓某物維持在某種狀態而不加處理」。
國中就學過 keep the door open、make yourself understood、find the box empty，都是「動詞＋受詞＋補語」，補語用來說明受詞的狀態；leave 走的是同一條路，只是補語換成過去分詞。
kept balanced（維持平衡）語意方向剛好相反——若溫室氣體維持平衡，後半句的 temperatures continue rising 就說不通；made released、seen dismissed 則是拼湊出來的組合，英文沒有這種說法。
leave sth unchecked（放任不管）、leave sth unattended（無人看管）、go unchecked（未受遏止地持續）、keep sth under control（控制住）、check the spread of（遏止…的擴散）。
Glaciers are usually associated with colder climates. But some mountain ranges of South America, Africa, and Indonesia are also 26 glaciers and ice sheets. These tropical glaciers serve as a major source of water supply to one-sixth of the world's population.
A newly published study, however, revealed that rising temperatures are posing an 27 threat to the last tropical glaciers in Indonesia's Papua region. The ice sheets, which once spanned 20 square kilometers, are thinning over five times as quickly compared to a few years ago. 28 already shrunk by 85 to a mere 0.5 square kilometers, Papua's glaciers will completely disappear within a decade, researchers have predicted.
The disappearance of the glaciers will also leave a significant 29 impact. For many indigenous Papuans, the ice sheets represent a sacred symbol. "The mountains and valleys are the arms and legs of their god and the glaciers are the head," explained the head researcher. The study warned that Papua's glaciers are only the "first to go" if greenhouse gases are 30 and temperatures continue rising. And this is certainly a serious warning about the depressing fate of other glaciers around the world.