Bike— Part 1 채점 보고서

제안: 句子時態和語法需修正，避免重複並使表達更自然。回答要直接開始（主題句），然後可用一兩句補充細節。例如說明為何沒有腳踏車或有沒有騎過其他代步工具。注意不要超過五句。

예시: No, I didn't have a bike when I was a child. My family lived in a small apartment and we couldn't afford one, so I usually walked or took the bus to school. Occasionally I borrowed a friend's bike to ride in the park.

제안: 回答內容清楚且具體，但語句有些重複，詞彙可更自然。可在陳述後加入一個具體例子或比較，並使用連接詞使語意流暢（例如 'because', 'for example'）。保持句子簡潔，最多五句。

예시: Yes, bikes are very popular in my country because they are cheap and convenient. For example, many people use shared bikes to commute short distances in cities, which helps avoid traffic and saves time. In smaller towns, people often ride bikes for errands and shopping.

× Unfortunately, this is not the case. I didn't have a bike when I am when I was a child.

✓ Unfortunately, this was not the case. I didn't have a bike when I was a child.

问题类型：过去时错误（Past tense issue）。 说明：句中时态混用导致错误。“This is not the case.”用现在时与接下来描述的过去事实不一致；“I didn't have a bike when I am when I was a child.”中出现了多余且错误的片段“when I am”，且主句应使用过去时态。建议改为：“This was not the case.” 与“I didn't have a bike when I was a child.”以一致的过去时态表达过去的事实。提示：描述过去发生的事情，全句保持过去时，不要夹杂现在时或多余的短语。

× Absolutely. It is really a popular tool among Chinese citizens.

✓ Absolutely. It is a very popular means of transport among Chinese people.

问题类型：现在时使用问题（Present tense issue）和用词微调。说明：句子本身现在时可以，但用词不当：把“bike”称为“tool”不太自然，且“Chinese citizens”可简化为“Chinese people”。建议使用“is a very popular means of transport”或“are very popular”来更自然表达“自行车很受欢迎”。提示：保持现在时描述普遍事实，选择更地道的词汇。

× Many of us commute by bike.

✓ Many of us commute by bicycle.

问题类型：冠词/用词错误（Incorrect use of the definite article）。说明：原句语法上并非严重错误，但“commute by bike”可以接受；更正式地可改为“commute by bicycle”。建议在正式场合使用“bicycle”一词，使表达更自然、书面。

× It is really convenient for us to go to work on the bike.

✓ It is really convenient for us to go to work by bike.

问题类型：介词使用错误（Incorrect use of prepositions）。说明：英语中常用短语是“go to work by bike”或“go to work by bicycle”，而不是“on the bike”（除非特指某一辆车）。因此应使用介词“by”来表示交通方式。提示：谈论交通工具通常用“by + 交通工具（名词）”。