Bike— Part 1 Informe

Sugerencia: 回答总体信息明确，但有重复和语法错误，表达不够简洁自然。建议：1) 避免重复（不要说两次“when”或两次相同意思的句子）；2) 用一两句包含时间和背景的简洁句子（主题句+细节）；3) 注意时态和冠词，如“My parents bought it for me as a birthday gift when I was 12.”；4) 可加少量具体细节（比如自行车的颜色或你是否常骑），但不超过五句。

Ejemplo: Yes, I did. My parents bought me a red bike as a birthday present when I turned 12, and I spent most afternoons riding it around the neighborhood.

Sugerencia: 回答直接但过于笼统、时态混用且缺少连接词与具体细节。建议：1) 使用一致的时态（现在讨论普遍情况用现在时）；2) 添加具体原因或例子来支持观点（交通方便、价格低、短途出行等）；3) 用连接词使表达更连贯（例如“because”, “for example”）；4) 保持简短，有力，不超过三到四句。

Ejemplo: Yes, bikes are very popular in China because they are cheap and convenient for short trips. For example, many people use shared bikes in cities for commuting and students often ride to school.

× It's my birthday gift when when I was 12 years old.

✓ It was my birthday gift when I was 12 years old.

句子中涉及过去时间点（“when I was 12 years old”），应使用过去时态。原句使用“It’s”（现在时），时态不一致。改为“It was...”与从句的过去时间一致。建议注意主句和时间状语在时态上一致，描述过去事件时使用过去时。

× Almost every child had a bike.

✓ Almost every child has a bike.

句子讨论的是一般事实或现在的普遍现象（“bikes are really popular”），应使用一般现在时。原句使用过去时“had”，与上下文（现在普遍现象）不一致。改为“has”表明现在大多数孩子拥有自行车。建议在描述习惯性或普遍事实时使用一般现在时。

× It's my birthday gift when when I was 12 years old.

✓ It was my birthday gift when I was 12 years old.

原句有重复单词“when when”，属于句子结构/输入错误，需删除多余的“when”。同时结合时态问题（见上），需改为过去时。建议写句子后检查是否有重复或多余词语，保证句子通顺。