自行车— Part 1 評分報告

建議: 回答需要更自然和更有条理。首先用一到两句直接回答问题并说明时间（例如：I got one when I was six）。接着用连接词补充具体细节（例如：It was red and I loved it because...），并避免时态混用（把现在时改为过去时描述童年）。总体控制在最多五句话内，提供一到两条具体原因或回忆。

範例: I did — I got my first bike when I was six. It was bright red and I loved riding it around our neighborhood because it made me feel independent. I remember practicing until I could ride without training wheels, which gave me a big confidence boost.

建議: 回答要更准确、语法正确并提供具体理由。用一到两句直接回答（例如：Yes, they are quite popular），然后用连接词（for example, because, so）给出具体证据或原因（例如：many students use them on campus, affordable and convenient）。注意时态和主谓一致，避免模糊的表述。控制在不超过五句内。

範例: Yes, bikes are very popular in my country. For example, many students and commuters use bicycles on university campuses and in cities because they are cheap and convenient for short trips. As a result, you often see bike racks full near lecture halls and subway stations.

× Yes, I did when I was six years old. I have a red bike and I like it very much.

✓ Yes, I did when I was six years old. I had a red bike and I liked it very much.

问题类型：现在时态/时态一致性（ID 6）。解释：学生在回答过去拥有的物品时先用了过去时 did，但随后用现在时 have 和 like，造成时态不一致。应把描述童年时的拥有和喜好也用过去时，使整个句子时态一致。建议：当谈论过去的经历或状态（例如“when I was six”）时，主句和从句都用过去时：use 'had' 和 'liked'。

× Yes, I do. When we were working in the campus, there are many bikes.

✓ Yes, I do. When we were on campus, there were many bikes.

问题类型：There be 结构 / 介词用法（ID 3 与 11）。解释：原句有两处问题：1) 'When we were working in the campus' 中不自然且介词使用错误，常用搭配为 'on campus' 或者 'at the campus'，并且若要表达当时的情形可直接说 'when we were on campus'；2) 接着用现在时 'there are many bikes' 与前面过去时的时间状语不一致，应该用过去时 'there were many bikes'。建议：保持时态一致，使用正确介词搭配 'on campus'，并将 'are' 改为 'were' 来配合过去时间状语。