Bike— Part 1 채점 보고서

제안: 总体不错，内容相关且有细节，但存在语句连贯性和语言准确性问题。改进建议： 1) 注意句子边界与标点，避免句子过长或连在一起； 2) 在开头用一句主题句直接回答问题，然后用1–2个简短句子补充具体细节（时间、原因、感受）； 3) 使用连接词如“and”“so”“because”使叙述更自然； 4) 注意小语法错误（如复数、时态一致）并丰富词汇如“primary mode of transportation”可以替换或补充为“main way to get to school”。

예시: Yes, I did. I had a small bicycle that my father bought when I was about twelve. It was my main way to get to school, so I rode it every day. I loved cycling because it made me feel free and saved money on transport.

제안: 回答内容覆盖了观点与背景信息，但存在不完整句子和连贯性问题。改进建议： 1) 用一两个完整句子先给出直接回答（Yes/No + 简短理由）； 2) 将支持细节用连接词连接，并补充具体例子或对比（如“bike-sharing”在城市使用率高，农村较少）； 3) 避免句子中断或未完成的想法，若要表达转折要完成句子； 4) 使用更准确的词汇与复数形式（people of all ages, cycling）并注意标点。

예시: Yes, I think bikes are still very popular in my country. Bicycles have been common for decades, and recently bike‑sharing schemes have made cycling even more visible in major cities. You can see people of all ages cycling for commuting or leisure, although cars are becoming more common in some areas.

× My father bought me a small bike when I was about twelve years old and I rode it every single day I loved it

✓ My father bought me a small bike when I was about twelve years old, and I rode it every single day. I loved it.

原句缺少必要的标点连接，属于句子结构和主谓一致相关的问题（被归类为主谓一致/句子结构错误）。应在并列分句之间加逗号并将最后的独立感情句分开为单独句子，使句子更清晰，避免 run-on sentence。建议在口语或写作中使用标点或短停顿将独立分句分开。

× Extremely popular.

✓ They are extremely popular.

原句为不完整句子，缺少主语和谓语，故属于时态/句子结构问题（归入“现在时相关”类别）。在回答“Do you think bikes are popular in your country?”时，应使用完整的陈述句并使用一般现在时描述普遍事实。建议说完整句子如 “They are extremely popular.” 或 “Bikes are extremely popular in my country.”

× These days bike sharing schemes are available in major cities you will see people of all age cycling whether for commuting or leisure.

✓ These days, bike-sharing schemes are available in major cities. You will see people of all ages cycling, whether for commuting or leisure.

原句缺少必要的标点分隔和单复数、词形错误，主要问题包括：1) run-on sentence（句子结构问题）需要分成两句；2) “bike sharing” 应用连字符或连写以作形容词；3) “all age” 应为复数 “all ages”。这些均属于介词/结构与单复数使用（11 与 1/27 相关），但按要求仅修正列出的问题，故主要归为介词/结构错误。建议在类似句子中使用逗号或句号分隔独立分句，并注意名词复数形式。

× However, with increasing cost

✓ However, with increasing costs, ...

原句不完整，缺少谓语或后续内容，且“cost”在此应为复数“costs”以表示费用总体上升。属于过去时/句子不完整以及单复数问题（归类为过去时错误在于句子不完整，此处以“过去时问题ID5”为近似处理）。请补全句子并使用复数形式，例如 “However, with increasing costs, fewer people choose to buy bicycles.” 以使句子完整且语义明确。