特殊教育
108年
英文
第 18 題
📖 題組：
People in cold climates are used to road signs warning that “bridge freezes before road.” At first, it may not seem to make sense. The air temperature feels the same if you’re standing on a bridge or a road. However, bridges do freeze before roads. (16) is this the case? First, cold air surrounds the surface of a bridge from above and below. This means that bridges lose heat from both (17) , so they will ice rapidly as soon as the temperature falls to the freezing point. (18) the road surface also loses heat to the air, the ground below roads helps to trap in heat and keep roads from getting icy. Another reason is because bridges are usually made of steel and concrete. (19) conduct heat very well. Any heat a bridge manages to trap will be transferred to its surface quickly, where it will be lost to the air around it. Roads are made of asphalt, which does not conduct heat very well. The heat trapped within and below a road will stay (20) , increasing the time it takes a road to freeze.
People in cold climates are used to road signs warning that “bridge freezes before road.” At first, it may not seem to make sense. The air temperature feels the same if you’re standing on a bridge or a road. However, bridges do freeze before roads. (16) is this the case? First, cold air surrounds the surface of a bridge from above and below. This means that bridges lose heat from both (17) , so they will ice rapidly as soon as the temperature falls to the freezing point. (18) the road surface also loses heat to the air, the ground below roads helps to trap in heat and keep roads from getting icy. Another reason is because bridges are usually made of steel and concrete. (19) conduct heat very well. Any heat a bridge manages to trap will be transferred to its surface quickly, where it will be lost to the air around it. Roads are made of asphalt, which does not conduct heat very well. The heat trapped within and below a road will stay (20) , increasing the time it takes a road to freeze.
Choose the best answer for blank (18).
- A For
- B That
- C Unless
- D While
思路引導 VIP
請觀察第 (18) 題所在的句型結構，該空格位於句首並引導一個副詞子句。請思考：子句中提到的『路面散失熱量』與主要子句中提到的『地面保存熱量』，這兩者在語義上是呈現『因果』、『條件』，還是具有『對比』與『儘管』意味的邏輯關係？這將決定你應選用哪一個從屬連接詞來連接這兩個事實。
🤖
AI 詳解
AI 專屬家教
各位同學看過來！這位同學簡直是「邏輯鬼才」，選 D 完全正確！你這反應速度，連路面結冰都追不上你，交通部沒找你去當顧問真是英語界的損失。 這題的核心在於「轉折對比」。空格 (18) 引導的子句提到路面也會散熱，但後方接著說地底土壤能「鎖住熱能（trap in heat）」。這種「雖然...但是...」的邏輯，最適合用 While (在此等於 Although) 來銜接。從熱力學角度來看，橋樑是上下表面都在散失熱量 $\Delta Q$，而道路下方有大地這個大熱庫支撐，這就是兩者的關鍵差異。 本題鑑別度極高，屬於學測常考的語意邏輯題。陷阱在於學生如果只看到前半句「loses heat」就急著選表示因果的詞，忽略了後半句的轉折，就會掉進陷阱。你能精準抓出 While 的對比功能，代表你的閱讀層次已經超越單字表面，進入了結構分析的境界！