分科測驗
109年
英文
第 40 題
📖 題組：
The planet’s deepest point is in the Pacific Ocean’s Mariana Trench, which lies miles below the sea surface. According to a new study published in Nature Ecology & Evolution, even in this remote locale, creatures cannot escape pollution. A team of researchers recently sent a remotely operated vehicle into the depths of the Mariana Trench. They found that extraordinarily high levels of forbidden industrial chemicals are contaminating marine life more than 7 miles deep in the trench. The small hard-shelled marine life that the robotic submarine brought to the surface was polluted with toxic chemicals, with toxin levels 50 times greater than those of the most heavily polluted rivers in the world. These pollution levels were not the only alarming aspect of the discovery. The types of compounds found were all considered “persistent organic pollutants” (POPs), meaning they stick around in the environment for a very long time. Two of the most prevalent types are PCBs and PBDEs. PCBs were once used in many industrial applications, but were outlawed in the United States in the 1970s after being linked to cancer. Similarly, PBDEs were used in a wide range of products—from electronics to couch cushions. Neither chemical breaks down in the environment. These compounds stick to the surface of materials like plastic. Many creatures mistakenly eat this colorful but toxic material, causing the POPs to build up in their bodies, lurking in their fat tissues. When these sea creatures die, their POP-riddled bodies sink to the ocean floor, where deep-sea marine life eat their remains. POPs are therefore transferred to other creatures along the food chain. The Mariana Trench is many miles away from any industrial source. This suggests that these pollutants travel over long distances despite having been prohibited worldwide decades ago.
The planet’s deepest point is in the Pacific Ocean’s Mariana Trench, which lies miles below the sea surface. According to a new study published in Nature Ecology & Evolution, even in this remote locale, creatures cannot escape pollution. A team of researchers recently sent a remotely operated vehicle into the depths of the Mariana Trench. They found that extraordinarily high levels of forbidden industrial chemicals are contaminating marine life more than 7 miles deep in the trench. The small hard-shelled marine life that the robotic submarine brought to the surface was polluted with toxic chemicals, with toxin levels 50 times greater than those of the most heavily polluted rivers in the world. These pollution levels were not the only alarming aspect of the discovery. The types of compounds found were all considered “persistent organic pollutants” (POPs), meaning they stick around in the environment for a very long time. Two of the most prevalent types are PCBs and PBDEs. PCBs were once used in many industrial applications, but were outlawed in the United States in the 1970s after being linked to cancer. Similarly, PBDEs were used in a wide range of products—from electronics to couch cushions. Neither chemical breaks down in the environment. These compounds stick to the surface of materials like plastic. Many creatures mistakenly eat this colorful but toxic material, causing the POPs to build up in their bodies, lurking in their fat tissues. When these sea creatures die, their POP-riddled bodies sink to the ocean floor, where deep-sea marine life eat their remains. POPs are therefore transferred to other creatures along the food chain. The Mariana Trench is many miles away from any industrial source. This suggests that these pollutants travel over long distances despite having been prohibited worldwide decades ago.
What is the passage mainly about?
- A The decrease of polluted creatures in the food chain.
- B Using remote control in research on marine pollution.
- C Pollution of the deep sea by persistent toxic chemicals.
- D Types of chemical pollution caused by industrial applications.
思路引導 VIP
在解構主旨題時，必須找出能同時涵蓋『地理範圍』與『核心議題』的關鍵詞。請思考：文章從深海海溝的極端環境出發，隨後詳細論證了持久性有機污染物 (POPs) 的特性與生物累積過程。哪一個選項能完整串聯『深海環境』與『化學污染』這兩個核心概念，而非僅僅描述研究工具或單一產業來源？
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AI 詳解
AI 專屬家教
喂，沒被淘汰掉的凡才。推了推眼鏡... 看來你這球剛好踢在了『運氣』與『實力』的交界點上。這題的本質是找出那唯一且致命的進球點：文章從馬里亞納海溝的深度切入，核心在於那些即便在 7 英里深處也無法逃脫的 $POPs$（持久性有機污染物）。 (A) 減少？你在做夢嗎？污染只會隨食物鏈累積。(B) 遙控潛水器只是工具，不是目的。(D) 只談種類太過膚淺。唯有 (C) 抓住了「深海」與「持久性化學污染」這兩個決定性的變量。能從瑣碎的數據中提取出這種核心邏輯，才算拿到了通往世界第一的入場券。如果你連這都看不透，乾脆現在就滾出這座監獄，把機會讓給真正的『自私鬼』吧。