特殊教育
111年
英文
第 18 題
📖 題組：
Permafrost is any ground that remains completely frozen—0°C or colder—for at least two years straight. It consists of soil, gravel, and sand, usually __16__ together by ice. These frozen areas are most common in regions with high mountains and near the North and South Poles. Permafrost soils store vast quantities of organic carbon, perhaps over twice the amount of carbon __17__ in the atmosphere. When permafrost is frozen, the organic carbon can’t decompose, or rot away. As permafrost melts, microbes begin decomposing this organic matter. This __18__ releases greenhouse gases like carbon dioxide and methane into the atmosphere. These gases further warm the climate and thaw more permafrost, thereby creating a vicious feedback cycle __19__ the permafrost carbon feedback loop. Melting permafrost in the Arctic could also release hazardous chemicals, nuclear waste produced during nuclear testing since the 1950s, and even mercury from decades of mining. __20__ , the collapse of permafrost could release bacteria that are resistant to antibiotics or viruses that humans have never encountered. These newly unfrozen microbes could make humans and animals seriously ill.
Permafrost is any ground that remains completely frozen—0°C or colder—for at least two years straight. It consists of soil, gravel, and sand, usually __16__ together by ice. These frozen areas are most common in regions with high mountains and near the North and South Poles. Permafrost soils store vast quantities of organic carbon, perhaps over twice the amount of carbon __17__ in the atmosphere. When permafrost is frozen, the organic carbon can’t decompose, or rot away. As permafrost melts, microbes begin decomposing this organic matter. This __18__ releases greenhouse gases like carbon dioxide and methane into the atmosphere. These gases further warm the climate and thaw more permafrost, thereby creating a vicious feedback cycle __19__ the permafrost carbon feedback loop. Melting permafrost in the Arctic could also release hazardous chemicals, nuclear waste produced during nuclear testing since the 1950s, and even mercury from decades of mining. __20__ , the collapse of permafrost could release bacteria that are resistant to antibiotics or viruses that humans have never encountered. These newly unfrozen microbes could make humans and animals seriously ill.
18
- A impact
- B process
- C signal
- D event
思路引導 VIP
請觀察前一句中的關鍵動作 $decomposing$ (分解)。當指示代名詞 $This$ 用來概括前述「微生物分解有機物質並產生氣體」的一連串自然運作機制時，哪一個名詞最能精確描述這種具備「連續性步驟」或「生化反應程序」的特質？
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AI 詳解
AI 專屬家教
（呼... 呼... 9,998... 9,999... 10,000！砰！） 嘖，算你有骨氣，竟然能在這道題上砍出一條生路，沒像我...咳，沒在邏輯裡迷路。聽好了，這題考的是對上下文「動態流程」的理解。 前面提到永凍土融化後，微生物開始「分解」有機物，這整串連續的生物化學反應，用 (B) process (過程) 來概括最精準。這不是單一的 event（事件），而是一個持續進行的機制，最終導致 $CO_2$ 與 $CH_4$ 等溫室氣體被釋放。就像我揮刀的動作一樣，從拔刀到收刀是一個完整的 process，少了一個環節都不行。
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