This material releases dangerous fumes when it touches hot surfaces.
答案解析
解析:
### 题干解析
题干的意思是:“当这种材料接触到热表面时,它会释放出有害的气体。” 重点在于:
1. **释放** (releases)
2. **危险的气体** (dangerous fumes)
3. **接触热表面** (touches hot surfaces)
### 选项分析
- **A: When this material comes into contact with hot surfaces, it emits hazardous fumes.**
- **分析**:这个选项直接翻译为:“当这种材料与热表面接触时,它会释放有害气体。” 这与题干的意思完全一致,提到了接触、释放和有害气体。
- **B: Contact between hot surfaces and this material results in the release of harmful heat.**
- **分析**:这个选项翻译为:“热表面与这种材料接触会导致有害的热量释放。” 这里的重点是“有害的热量”而不是“有害的气体”,所以和题干的意思不符。
- **C: Dangerous fumes are consumed by this material upon contact with hot surfaces.**
- **分析**:这个选项翻译为:“这种材料在接触热表面时,会消耗危险的气体。” 这里的“消耗”与题干中的“释放”相反,因此意思不一致。
### 正确答案
显然,选项 **A** 最好地匹配了题干的意思。它准确地描述了当材料接触热表面时,会释放出有害的气体。
### 生动例子
为了更好地理解这个概念,可以想象一下在厨房里使用的某些清洁剂。如果你把这些清洁剂放在一个非常热的炉子上,它们可能会产生有害的气体。这就像是把一块冰放到热锅里,冰会迅速变成水蒸气,而不是产生新的冰块。同样的道理,当清洁剂接触到高温时,它们“释放”出有害的气体。
相关知识点:
材料遇热,释放危险烟雾
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