Bike— Part 1 Report

Suggestion: 回答比较自然且信息完整，但有语法时态和连贯性小问题，句子略长且重复“usually”。可以把时态统一，使用连词使表达更紧凑，并补充一两个具体细节以丰富内容。建议把句子分为两部分：先直接回答，然后用一到两句简短细节说明原因和场景。

Example: Yes, I did. My mother bought me a small yellow bike when I was little. However, I couldn't ride it outside because I wasn't tall enough to reach the pedals, so I usually practised riding it in our backyard until I grew taller.

Suggestion: 回答清晰且信息具体，但可改进的地方是使用更自然的时态和连接词，加入具体原因或简单对比以增强说服力。可补充一两个具体原因（如城市化、交通便利）或个人观察以提供更具体的支持细节。

Example: Yes, they used to be very popular in the twentieth century. Nowadays, however, most people commute by car or electric scooter because cities have expanded and public transport and roads have improved, making motorised travel more convenient.

× Yes, I did have a small yellow bike my mother bought me but I didn't usually use that bike as I was not tall enough to reach the pedal, so I usually ride it at home.

✓ Yes, I did have a small yellow bike my mother bought me, but I didn't usually use that bike as I was not tall enough to reach the pedals, so I usually rode it at home.

问题类型：过去时使用错误。解释（简体中文）：句子中关于过去习惯的部分时态不一致。开头用了过去时“did have / didn't usually use / was not tall”，但结尾却用现在时“usually ride”，应全部用过去时以保持时态一致。另外，“pedal”在此表示自行车的踏板，应使用复数“pedals”。改进建议：谈论过去的情况或习惯时，整个句子应统一使用过去时，例如把“usually ride”改为“usually rode”，并把“pedal”改为复数“pedals”。

× Yes, bikes were popular in my country in the twentieth century, but now people seldom use bikes to go for work because they tend to use cars or electric bikes.

✓ Yes, bikes were popular in my country in the twentieth century, but now people seldom use bikes to go to work because they tend to use cars or electric bikes.

问题类型：现在时使用/介词使用错误。解释（简体中文）：句子中“go for work”是不自然的搭配，应该说“go to work”。总体时态表达正确（比较过去与现在），但介词用法错误导致表达不地道。改进建议：把“go for work”改为固定搭配“go to work”。