Bike— Part 1 채점 보고서

제안: 句子有语法错误、用词不准确和重复。应注意时态和主谓一致（I were → I was），使用简洁清晰的表达，并补充具体细节以丰富内容。例如说明谁送的、什么时候学会骑、是否经常骑等。此外控制在最多五句内并使用连接词使表达更连贯。

예시: Yes. I had a small pink bike when I was a child. It was given to me by my father on my seventh birthday, and it had training wheels so I could learn safely. I rode it almost every day around my neighborhood, which helped me become more confident and independent.

제안: 表达基本清楚但有语法和用词问题（there is many → there are many；the leader → the government/authorities），语句略冗长且口语填充词较多。应使用更准确的词汇、加入具体例子或数据，并用连接词组织观点（例如: firstly, secondly, for example）。控制在五句内并避免重复。

예시: Yes, I think bikes are very popular in my country. There are many shared bikes available that people can unlock using smartphone apps. For example, in my city dozens of bike stations were installed last year, which makes cycling convenient for short trips. As a result, more people are choosing bikes instead of cars for commuting.

× When I were a child I had a bike that's a pink bike with free wheels that's make my my dad.

✓ When I was a child, I had a bike. It was a pink bike with training wheels that my dad made for me.

问题类别：主谓一致（Subject-verb agreement）和句子结构问题的混合。错误说明：1) “When I were a child” 中的主语“I”应与单数动词“was”搭配，而不是“were”；2) 原句结构混乱且包含重复（“that's a pink bike” 与“that's make my my dad”），需要拆分为更清晰的句子；3) “free wheels” 应为 “training wheels”（学步轮）或“spare wheels” 取决于意思，且“that's make my my dad” 语法错误，应改为“that my dad made for me”。改进建议：使用正确的主谓一致（I → was），把长句拆成短句以增强可理解性，避免重复，注意使用正确的名词短语（training wheels），并用被动或定语从句正确表达“由谁做的”。

× I think the answer is yes because uh there is many free bike for the citizens to use and they just download apps to use those bike and the leader is encourage people to use them.

✓ I think the answer is yes because there are many free bikes for citizens to use, and they just download apps to use those bikes. The leaders encourage people to use them.

问题类别：单复数问题（Singular and plural issue）及主谓一致。错误说明：1) “there is many free bike” 中，many 后面应接复数名词且与 there be 结构一致，应为 “there are many free bikes”；2) “those bike” 应为复数 “those bikes”；3) “the leader is encourage people” 中主语与动词形式不一致，应为复数或三单形式并用正确动词形式，“leaders encourage” 更自然。改进建议：注意 many 后用复数名词并与 there be 的形式（is/are）一致；复数名词前的指示代词也应为复数（those bikes）；主语与谓语动词在人称和数上保持一致，使用简洁的主动语态。