Bike— Part 1 채점 보고서

제안: 句子结构和语法需要改进，回答过长且有语法错误。可以先简短直接地回答，然后用一到两句具体理由支持，使用连接词使表达更自然。例如注意过去时态和主谓一致（parents were afraid），以及把原因分成两句或使用连词避免冗长。

예시: No, I didn't have a bike when I was a child. My parents were afraid I might get injured, so they didn't buy one for me. Besides, I usually went to school by bus or subway, so I had few chances to ride.

제안: 回答总体清楚但表达可以更地道并提供更具体细节。注意使用更自然的词汇（e.g., "bike traffic" 或 "a lot of bicycles on the road"），并用连接词拓展原因或结果，避免模糊的句子结尾。可以补充时间、地点或比较来使内容更具体。

예시: Yes, bikes are quite popular in my country. For example, every morning I see many students and office workers cycling to school or work, especially in the city center, which often causes heavy bicycle traffic on the streets.

× I didn't have a bike when I was a child because first my parents afraid that I would get injured and second I did not have much opportunity to ride bikes because I often go to school by bus or by subway.

✓ I didn't have a bike when I was a child because, first, my parents were afraid that I would get injured, and second, I did not have many opportunities to ride bikes because I often went to school by bus or by subway.

问题类型：第三人称单数/动词时态与主谓一致混合错误。说明：句中“my parents afraid”缺少系动词，应为“were afraid”；另外讲述过去的经历应保持过去时，句末“I often go to school”应改为过去时“I often went to school”；“much opportunity”用于可数名词应使用复数形式“many opportunities”。建议：在描述过去的情况时，句中所有动词要保持过去时；对状态描述使用适当的系动词（例如“be”在过去时为“was/were”）；可数名词用复数并搭配“many”。

× Yes, I think bikes are popular in my country because I can see many people or students riding bicycles to go to school or go to work and this also caused the bicycle traffic.

✓ Yes, I think bikes are popular in my country because I can see many people and students riding bicycles to go to school or go to work, and this also causes bicycle traffic.

问题类型：现在时使用不当 / 时态一致问题。说明：句中主句使用一般现在时“I think / I can see”，因果结果也应使用一般现在时，不能用过去式“caused”，应改为“causes”。另外“many people or students”表达不自然，改为“many people and students”更合适；“the bicycle traffic”中的定冠词不必要，改为“bicycle traffic”。建议：描述常态或普遍事实时使用一般现在时，保持整句时态一致；简化并并列类似名词短语，去掉不必要的定冠词。