Bike— Part 1 Báo cáo

Gợi ý: 回答时要直接用与过去相关的时态（过去式），并提供简短的扩展细节以显得自然且信息丰富。例如说明没有的原因或有没有别的替代交通工具。避免语法错误并用一至两句补充说明。

Ví dụ: No, I didn't have a bike when I was a child. My family couldn't afford one, so I usually walked to school or took the bus with my older sister.

Gợi ý: 回答要更自然地使用名词复数和更具体的支持细节。使用连接词（like, because, for example）来解释原因或举例，避免笼统陈述。控制在最多五句话之内。

Ví dụ: Yes, I think bicycles are quite popular, especially among teenagers and adults. For example, many people use them for short commutes because they are cheap and convenient, and cities are adding more bike lanes to encourage cycling.

× No I haven't had a bike.

✓ No, I didn't have a bike.

问题类型对应于“时态/助动词使用”——学生在回答“Did you have a bike when you were a child?”（过去时）时使用了现在完成时（haven't had），这与提问的过去时间状语“when you were a child”不一致。建议：遇到明确指向过去的时间（如 when you were..., last year, in 2005 等）时，使用一般过去时（did + 动词原形 或 过去式）；另外在口语中在否定句前加逗号并注意缩写（No, I didn't/No, I didn't have）。

× Yes, I think it is very welcomed by older children and adults

✓ Yes, I think they are very popular with older children and adults.

问题类型对应于“主谓一致/代词使用/介词使用”——原句中用 it 指代复数名词 bikes 导致代词与先行词数不一致；动词 welcomed 用法不当，表达“受到欢迎”时更自然的说法是“be popular with”或“be welcomed by”，但前者更常用；另外主语应与复数代词匹配（they are）。建议：当谈论复数名词（bikes）时，用复数代词（they）和复数动词（are）；表达“被……欢迎”可用“be popular with”更地道。