Bike— Part 1 채점 보고서

제안: 句子时态和词汇使用不准确，表述不清晰。回答应直接回应“有没有自行车”，使用正确时态和单词（bike 而不是 bag），并简短说明原因或补充细节（1-3 句）。注意句子不要太长或重复。建议练习使用过去时(simple past)和常见连词（because, so, but）。

예시: No, I didn't have a bike when I was a child because my parents thought it was unsafe. However, I sometimes rode scooters with my friends in the neighborhood.

제안: 表达有想法但语法和词汇错误较多，逻辑连接不够流畅。应使用现在时描述普及程度，替换错误词汇（bike / bike-sharing 而不是 back），并用连接词（however, whereas）使对比更清晰。补充具体例子或原因以增加内容深度。

예시: It depends on the city. In large cities, bike-sharing schemes are very popular and many people use them for short trips. In contrast, in my small town there are few shared bikes because the demand is low and distances are short.

× No, when I'm a child I don't have a bag because I don't know how to use my bag.

✓ No. When I was a child I didn't have a bike because I didn't know how to use a bike.

此句涉及時態與用詞錯誤。說話描述過去經歷，應使用過去時（was / didn't have / didn't know），而不是現在時（I'm / don't have / don't know）。另外原句用了“bag”（包）而上下文在問自行車（bike），應改為bike；第二個“my bag”重複，可改為a bike或my bike以避免冗餘。建議：陳述過去事情時一律使用過去式，名詞要與上下文一致。

× I think it was different in different cities.

✓ I think it is different in different cities.

此句為一般陳述對現在情況的看法，應使用現在時（is），而非過去時（was）。建議：表達現時普遍看法用現在時。

× In some big city they have shared back can use by everyone.

✓ In some big cities they have shared bikes that can be used by everyone.

原句存在多個錯誤：單複數不一致（city→cities）；back為拼寫錯誤，應為bike；從句結構錯誤，應改為關係從句或被動結構（that can be used / that everyone can use）。另外加入正確冠詞或複數形式。建議：注意名詞複數、拼寫及從句結構。

× But in my city we don't have shared back because our city is small.

✓ But in my city we don't have shared bikes because our city is small.

時態使用正確（現在時）但名詞拼寫與單複數錯誤：back→bike，shared bike通常以複數形式表達（shared bikes）。建議：核對拼寫並根據語境使用複數。

× It's not enough for shared back to use.

✓ There are not enough shared bikes to use.

原句語序與結構不正確。正確表達應使用There are not enough + 名詞結構，或用enough + 名詞。back拼寫錯誤且需複數（shared bikes）。建議：使用標準存在句（There is/are）表達數量不足，並注意名詞複數與拼寫。