Bike— Part 1 채점 보고서

제안: 语法错误与时态使用不当。应该用过去式描述过去的状态或经历；回答应更自然且稍微扩展，提供一两句具体细节以显得更完整。例如说明谁送的、常常去哪儿骑或印象最深的一次。回答句子不宜过长，最多5句。

예시: Yes, I had a bike when I was a child. My parents bought it for my seventh birthday, and I used to ride it to school every day. I especially remember racing with my friends in the park on weekends.

제안: 回答过于简短，缺乏支持性细节。需要用一到两句说明原因或举例，使用连接词使回答连贯（例如 because, for example, especially）。这能展示观点并提高表达分数。

예시: Yes, bikes are quite popular in my country because many people use them for short trips and commuting. For example, in my city you can see many people cycling to work or school, especially during the summer.

× When I was a child, I have a bike.

✓ When I was a child, I had a bike.

问题类型：现在时态使用错误（应使用过去时）。 解释：句子开头用了表示过去的时间状语“When I was a child”，因此谓语动词必须用过去时。原句中使用了现在时“have”，与时间状语不一致，语法上不正确。 改进建议：当句子中出现明确的过去时间标志（如 when I was a child, yesterday, last year 等）时，把动词改为过去式（这里将 have 改为 had）。此外，可以多做过去时态的练习，注意时间状语与动词时态的一致性。