🌋 Unit 7: Volcanoes 互動式科學與英文學習寶盒
精心對照四年級 Unit 7 課本內容 | 英文發音 • 互動挑戰 • 即時對答案
| 核心單字 (Word) | 中文意思與解釋 | 課本精選例句 (Sentence) |
|---|---|---|
| crust | 地殼 地球的最外層。 | The earth has a crust, mantle, outer core, and inner core. |
| magma | 岩漿 地底下的熔融岩石。 | Deep down, it is so hot that rock is melted. This is called magma. |
| lava | 火山熔岩 流出地表的岩漿。 | The flow of melted rock on the surface is called lava. |
| erupt | 噴發 火山爆發。 | A volcano erupts when magma explodes onto the surface. |
| steam & ash | 水蒸氣與火山灰 | The blast throws steam and ash into the air. |
💡 點擊下方各狀態的卡片，看看課本（image_29.png）中是怎麼定義它們的喔！
🌋 Active (活火山)
👇 點擊看課本定義
課本定義： If a volcano is erupting, then it is active. (目前正在噴發或活躍中)
💤 Dormant (休火山)
👇 點擊看課本定義
課本定義： If a volcano is not erupting, but may erupt in the future, it is dormant. (目前在睡覺，但以後可能會醒來)
🪨 Extinct (死火山)
👇 點擊看課本定義
課本定義： If a volcano has not erupted in thousands of years and will not erupt in the future, it is extinct. (已經幾千年沒噴發，以後也不會再噴發)
💡 語法加油站：First Conditional (第一條件句)
課本句型公式：If + 現在簡單式動詞(V/Vs) , 主詞 + will + 原型動詞(V)
※ 請參閱課本 image_26.png 的連連看與造句，在空格中輸入正確格式並檢查答案吧！
1. If I go to Hawaii, I (see) volcanoes.
2. If ash (cover) the grass, the grass dies.
3. If rain hits the lava, it (turn) to steam.
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