自行车— Part 1 評分報告

建議: 回答清晰但有语法和表达问题，需改进时态一致性、删去多余短句并使句子更自然流畅。具体建议：1) 使用一致的过去时（因为在讲过去的事情），例如把“It is. It was my birthday present”改为“it was a birthday present”。2) 合并短句避免断裂，保持句子在不超过5句内。3) 增加一两个具体细节（比如自行车的颜色或学会骑车的年龄）以丰富内容并展示词汇。

範例: Yes, I did. When I was very young my grandpa bought me a small blue bicycle as a birthday present, and I loved it. I learned to ride it when I was five, and I remember feeling very proud when I could cycle without training wheels.

建議: 表达含混且存在语法错误和词汇使用不当。需要：1) 使用恰当的时态和语态（例如“haven't outcome”应改为“hadn't appeared”或“weren't common”），2) 使用连接词使逻辑更清晰（e.g. "however", "now"），3) 给出具体对比细节（比如电动自行车的普及原因、目前人们的出行偏好）以增强内容。保持回答简洁，不超过5句。

範例: I think bicycles used to be very popular about ten years ago, because most people cycled for short trips. However, since electric bikes became common, many people prefer them for convenience and speed. As a result, traditional cycling has declined in cities, although some people still ride bikes for exercise or leisure.

× It is. It was my birthday present and I liked it very much.

✓ It was my birthday present and I liked it very much.

句子中出现了“It is.”，但句子语境是在回忆过去（When I was very young），应使用过去时。多余的“It is.”既不符合时态也无意义，需删除以保持时态一致性并使句子通顺。建议在叙述过去经历时统一使用过去时。

× when the E bike haven't outcome and most people choose to ride a bike to go outside.

✓ when e-bikes hadn't emerged and most people chose to ride a bike to go out.

原句中使用了“haven't outcome”，这是错误的搭配和时态。正确表达“出现/出现了”可用“emerge”或“come out”的过去完成或过去时形式；因为句子在描述大约十年前的情况，用过去时或过去完成时皆可，此处用过去时“hadn't emerged”或“hadn't come out”更自然。另外“choose”应与过去时间一致改为“chose”，“go outside”更常用“go out”。建议学习常见动词短语（emerge, come out, go out）及其过去式形式，并保持全句时态一致。

× But now it changes.

✓ But now it has changed.

“But now it changes.”语法上虽然可用一般现在时表示习惯性动作，但此处想表达的是与过去相比现在发生了变化，应该用现在完成时“has changed”来表示从过去到现在的变化结果。建议区分一般现在时（习惯、事实）与现在完成时（动作对现在的影响或变化）。

× MMM in my opinion bikes were popular in my country before about 10 years ago when the E bike haven't outcome and most people choose to ride a bike to go outside.

✓ In my opinion, bikes were popular in my country until about ten years ago when e-bikes hadn't emerged and most people chose to ride a bike to go out.

原句中“E bike”写法和冠词、大小写不规范，应写为“e-bikes”或“the e-bike industry”视上下文而定。另外“before about 10 years ago”结构重复（before + ago同时使用不合适），应选择“until about ten years ago”或“about ten years ago”。建议注意时间短语的正确搭配，并使用统一、规范的名词形式（复数、连字符、大小写）。

× when the E bike haven't outcome and most people choose to ride a bike to go outside.

✓ when e-bikes hadn't emerged and most people chose to ride a bike to go out.

原句中“the E bike haven't outcome”存在主谓不一致：主语应为复数或不可数名词时，谓语助动词应相应变化；此外“haven't”是第一/第二人称或复数现在时的否定，不适用于过去语境。改为“hadn't emerged”使主语和时态一致。建议学习主谓一致规则以及助动词在不同时态下的用法。