Bike— Part 1 採点レポート

提案: 用时态和语法更准确地表达同时提供更自然、简洁的细节。建议： 1) 使用正确的过去时（例如：I didn't have... / I didn't get... until I was four.）。 2) 用更自然的短句并限制在最多5句内，例如先给主题句，再给1~2个具体细节（什么时候练习、频率、结果）。 3) 避免夸张且不自然的表述（如“I became a master of bicycle”），可以用更真实的描述如“I became very confident”或“good at riding”。 具体可练习点：纠正动词和冠词（a bike），使用连接词（Since then, After that）使语句连贯，提供具体时间/频率并用更贴切的结果词汇。

例: I didn't get a bike until I was four. After that, I practised riding it after school about four times a week. Because of that regular practice, I became very confident and could ride without training wheels within a few months.

提案: 提高准确性与表达自然度，并提供更具体的支持细节。建议： 1) 使用正确的时态和语法（例如：Bikes didn't become popular until... / because the government launched...）。 2) 避免口头语“uh”并用连词使结构更清晰（e.g. Because..., As a result...）。 3) 给出具体影响或例子（如共享单车如何改变通勤方式、使用人数增加或节省费用）。 4) 注意词汇准确性（比如不要说 “They don't need to earn on their own bike”，应为 “people don't need to own their own bikes”）。

例: Bikes didn't become very popular until 2020, when the government launched a bike-sharing scheme. Because of that, many people can now scan a code to unlock a rented bike, so they don't need to own one. As a result, more people use bikes for short trips and commuting, especially in busy city areas.

× I haven't got bike until I was four years old.

✓ I didn't have a bike until I was four years old.

句中描述过去某一时间之前没有自行车，属于过去时的陈述，不能用现在完成时（have/has + past participle）与具体过去时间点（until I was four years old）连用。应使用一般过去时 did not have。另有冠词缺失，bike 前需加不定冠词 a。建议：遇到明确过去时间（如具体年龄或年份）时，用一般过去时，并注意名词前冠词的使用。

× Since then I usually practiced my bicycle skills after school, probably like 4 times a week, and then I became a master of bicycle.

✓ Since then I usually practiced my bicycle skills after school, probably about four times a week, and then I became a master of the bicycle.

句子中有几个问题：1) 用词“probably like 4 times a week”口语可懂，但书面或正式表达应使用 about/four 而不是 like/数字符号；2) 'master of bicycle' 缺少冠词且搭配不自然，改为 'a master of the bicycle' 或更自然 'very good at cycling'；3) 时态上 'Since then' 通常与现在完成时连用（表示从那时起一直到现在），但后文使用过去时 'practiced' 和 'became' 强调过去的习惯和结果，这里如果强调过去习惯可保留过去时，但若想表示持续到现在应用现在完成时。建议：如果指过去习惯，保持一般过去时并改正冠词与用词；若指持续到现在，改为 'Since then I have usually practiced...'。此外数字用词建议写出并使用 about 表示频率。

× Uh, I guess bike didn't become popular until 2020 when the government established the sharing bike scheme.

✓ Uh, I guess bikes didn't become popular until 2020 when the government established the bike-sharing scheme.

问题包括：1) 单复数错误，泛指自行车作为类别应使用复数 'bikes'；2) 'sharing bike scheme' 词序和搭配不自然，应为 'bike-sharing scheme' 或 'bike sharing scheme'；3) 时态 'didn't become' 与具体过去时间 2020 一致，使用一般过去时是正确的。建议：表示某事在过去某时间才普及，用一般过去时；注意名词复数和固定搭配的词序。

× So, uh, which means right now everybody can share a code and ride a bike.

✓ So, uh, that means right now everybody can scan a code and ride a bike.

原句中的 which 用法不当，非限定性关系代词不能单独引导句子解释前句意义，应使用 that 或者 so that / this means。另：share a code 含义模糊，实际应为 'scan a code'（扫码）或 'use a code'（使用验证码）。建议：改用 that/this means 来引出解释性句子，并根据具体动作选择合适动词（scan/use）。

× They don't need to earn on their own bike.

✓ They don't need to own their own bike.

原句 use of 'earn on' 完全不合适，可能想表达 '拥有'（own）而误用 earn。正确表达是 'own their own bike' 或为避免重复可说 'their own bikes'。另外主语为复数时名词也应用复数形式。建议：使用 own 表示拥有，注意名词复数和所有格搭配。