extinct volcano的音標為[?k?st??kt ?vɑ?lke?no?]，基本翻譯為“熄滅的火山”，速記技巧為：extinct（已滅絕）+ volcano（火山）→ 已滅絕的火山。

Extinct volcano的詞源：

詞根：extinct，表示“熄滅的”

詞源：來自古英語中的extincian，意為“熄滅，滅絕”。

變化形式：無特殊變化形式。

相關單詞：

火山灰 ash：由火山噴發的火山灰組成。

火山口 crater：火山噴發時形成的圓形凹陷區域。

火山巖 volcanic rock：由火山噴發的熔巖或其他火山物質形成的巖石。

噴發 erupt：指火山突然釋放大量氣體和物質的過程。

休眠 volcano：指處于休眠狀態的火山，暫時沒有噴發的跡象。

復燃 reignite：重新點燃或引發火山的活動。

活火山 active volcano：指經常噴發的火山。

熔巖 lava：指從火山口流出或噴射的熔巖。

火山泥流 lahar：指由火山灰和熔巖混合而成的泥石流。

火山碎屑流 pyroclastic flow：指由大量熾熱的火山灰和巖石組成的快速流動。

以上這些單詞都與extinct volcano有著密切的聯系，描述了火山的各種現象和狀態。這些單詞不僅在描述火山方面非常有用，而且在語言學習中也有著很高的趣味性。

常用短語：

1. extinct volcanoes - 已經滅絕的火山

2. volcanic eruptions - 火山爆發

3. volcanic ash - 火山灰

4. volcanic activity - 火山活動

5. volcanic mountains - 火山山脈

6. volcanic cones - 火山錐

7. volcanic hot springs - 火山熱泉

雙語例句：

1. The extinct volcano is now a popular tourist destination. (已滅絕的火山現在是一個受歡迎的旅游勝地。)

2. Volcanic eruptions are a natural hazard that can affect communities. (火山爆發是一種自然災害，可能會影響社區。)

3. The volcanic ash from the eruption caused widespread damage to crops and livestock. (火山灰從爆發中造成農作物和牲畜的廣泛損害。)

4. Volcanic activity is a dynamic process that can occur anywhere on Earth. (火山活動是一種動態的過程，可以在地球上的任何地方發生。)

5. The volcanic mountains in this region are a beautiful sight to behold. (這個地區的火山山脈是一處值得一看的美景。)

6. Volcanic hot springs are a unique natural resource that should be protected. (火山熱泉是一種獨特的自然資源，應該受到保護。)

7. The extinct volcano is now a protected area and is home to many endangered species. (已滅絕的火山現在是保護區，是許多瀕危物種的家園。)

英文小作文：

Volcanoes are a fascinating part of the Earth"s natural environment, whether they are active or extinct. From their towering peaks to their steaming hot springs, volcanoes are a testament to the power of nature.

Extinct volcanoes, however, hold a special place in our hearts. These once-active mountains have now settled down, leaving behind unique landscapes and rich history. Today, many extinct volcanoes have become popular tourist attractions, drawing visitors from around the world to witness their beauty and learn about their past.

Volcanoes have had a profound impact on human history, from the devastating eruptions that caused widespread damage to the formation of new land masses. Even today, volcanoes continue to shape our planet, providing unique natural resources such as hot springs and precious minerals. Understanding volcanoes, both active and extinct, is essential for understanding our planet and preserving our natural resources.