Bike— Part 1 채점 보고서

제안: 句子时态使用不一致，句子结构重复且有语法错误。回答应该直接开门见山，用过去时描述过去的事情，然后用1–2个具体细节支持答案，避免冗长或重复。可以使用连接词（例如because, so, which）使表达更连贯。

예시: Yes, I did. I had a small blue bicycle when I was a child because it was the easiest way for me to get to school. I used it every day, and it usually took me about ten minutes to ride there.

제안: 回答总体清楚但有小错误和表达不够具体。注意主谓一致（bicycles ... are popular because they are easy to use），并提供更具体的支持细节（比如使用场景、年龄段或数据）。可以用连词（for example, because, so）连接观点与细节。

예시: Yes, I think bicycles are very popular in my country because they are cheap and convenient. For example, many students and office workers use bikes to travel short distances, especially in big cities where traffic and parking are difficult.

× Yes, definitely. I do have a bike when I was a child.

✓ Yes, definitely. I had a bike when I was a child.

原句混用了现在时“do have”和过去时间状语“when I was a child”，时态不一致。应使用过去时“had”。建议：提到过去发生的事情时，用过去时态（had / was / went 等）。

× It helps me to commute to school.

✓ It helped me commute to school.

句子描述的是过去拥有自行车时的情况，应把动词时态改为过去时“helped”。此外，可以省略不定式中的“to”来使表达更自然（helped me commute）。建议：叙述过去事实时，句子中所有动词保持过去时一致。

× Bicycles are popular transportation in my country as it is easy to carry and it doesn't cost too much.

✓ Bicycles are a popular means of transportation in my country because they are easy to carry and don't cost much.

问题点：1) 用法错误——“popular transportation”不自然，需用“a popular means of transportation”或“popular”; 2) 主语与代词不一致——Bicycles（复数）应对应复数代词“they”，而不是“it”；3) “doesn't cost too much”普通用法可简化为“don't cost much”。建议：注意主语单复数一致，用适当词组表达“交通工具”(means of transportation)，并用复数代词与复数主语一致。