Replace the underlined expressions with proper nouns in the box, and change the forms if necessarylure conventions scenario nuances enthusiast partisan1. There was a friend of mine in high school who was a music fan and played the piano quite well.2. These people don't understand some of the basic social behaviors that the locals take for granted.3. He turned away from the attraction of big city life and went back to contribute to the development of his hometown.4. Experienced actors can use their eyes and facial expressions to communicate slight differences of emotions.5. One who is a strong supporter of a particular person or team can not be qualified to be a referee.6. We could foresee a situation, more likely within 10 years, where the majority of appliances can be connected.

我们来逐题分析并替换句子中划线的部分，使用题目提供的名词短语，并根据语境进行必要的形式变化。提供的可选名词有：

• lure（吸引力，诱惑）
• conventions（惯例，习俗）
• scenario（情景，局面）
• nuances（细微差别）
• enthusiast（爱好者，热衷者）
• partisan（党派支持者，偏袒者）

第1句：
There was a friend of mine in high school who was a music fan and played the piano quite well.

• 划线词是 fan（粉丝，爱好者），我们需要用提供的词中意思相近的词替换。
• “enthusiast” 意为“爱好者”，符合“music fan”的意思。
• 需要替换为名词，且前面有“a”，所以用单数形式 enthusiast。

✅ 改写后：
There was a friend of mine in high school who was a music enthusiast and played the piano quite well.

第2句：
These people don't understand some of the basic social behaviors that the locals take for granted.

• 划线部分是“basic social behaviors”（基本的社会行为），指的是社会中约定俗成的行为方式。
• “conventions” 意为“惯例，习俗”，正好对应“social behaviors”中的文化习俗含义。
• “some of the” 后面需要复数名词，conventions 本身就是复数形式。

✅ 改写后：
These people don't understand some of the conventions that the locals take for granted.

第3句：
He turned away from the attraction of big city life and went back to contribute to the development of his hometown.

• 划线词是“attraction”（吸引力），指大城市生活的诱惑。
• “lure” 表示“诱惑，吸引力”，尤其用于情感或欲望上的吸引，非常贴切。
• “the” 后面需要名词，lure 是可数名词，这里指一种抽象吸引力，可用单数。

✅ 改写后：
He turned away from the lure of big city life and went back to contribute to the development of his hometown.

第4句：
Experienced actors can use their eyes and facial expressions to communicate slight differences of emotions.

• 划线部分是“slight differences”（细微差别），特指情感表达上的微妙差异。
• “nuances” 意为“细微差别”，尤其用于情感、语气、意义等方面的微妙变化，完全匹配。
• “nuances of emotions” 是常见搭配。

✅ 改写后：
Experienced actors can use their eyes and facial expressions to communicate nuances of emotions.

第5句：
One who is a strong supporter of a particular person or team can not be qualified to be a referee.

• 划线部分是“strong supporter”（坚定支持者），带有偏向性。
• “partisan” 意为“党派支持者”或“偏袒某方的人”，常用于政治或竞技中立场不中立的人，符合语境。
• 前面有“a”，所以用单数名词形式 partisan。

✅ 改写后：
One who is a partisan of a particular person or team cannot be qualified to be a referee.

第6句：
We could foresee a situation, more likely within 10 years, where the majority of appliances can be connected.

• 划线词是“situation”（情况，局面），表示未来可能发生的一种状态。
• “scenario” 意为“情景，设想的局面”，常用于预测未来可能发生的情况，比“situation”更正式且适合此语境。
• 前面有“a”，所以用单数 scenario。

✅ 改写后：
We could foresee a scenario, more likely within 10 years, where the majority of appliances can be connected.

最终答案：

1. enthusiast
2. conventions
3. lure
4. nuances
5. partisan
6. scenario

\boxed{
\begin{aligned}&1.\ \text{enthusiast} \\&2.\ \text{conventions} \\&3.\ \text{lure} \\&4.\ \text{nuances} \\&5.\ \text{partisan} \\&6.\ \text{scenario}\end{aligned}
}