Bike— Part 1 채점 보고서

제안: 句子時態和語法需要修正，回應應更自然且具體。開頭可用過去式表明曾擁有，自我介紹句（topic sentence）後補充一兩個具體細節（例如騎車的頻率、喜歡的活動或記憶），並注意連接詞使用。避免重複單詞與錯誤詞序。

예시: Yes, I had a bike when I was a child. My parents bought it for me when I was seven, and I used it almost every day to ride around the neighborhood for exercise and fun.

제안: 回答應更直接並給出具體原因或例子來支持觀點。先明確表態（例如：Not very popular），然後用連接詞（because, although, however）展開原因（城市基礎設施、通勤方式、氣候等），避免重複與猶豫語（umm）過多。

예시: Not really. Cars and subways are much more common now because cities are busy and public transport is fast, so people rarely use bikes for commuting.

× Yes, I have a bike.

✓ Yes, I had a bike.

此处是在回答过去是否有自行车的问题（When you were a child?），时态应为过去时。原句用现在时 have 表示现在拥有，与问题的时间背景不一致。建议将动词改为过去式 had，以保持时态一致。

× When I seven years old my parents bought it for me for exercising and I think it it is helpful.

✓ When I was seven years old, my parents bought it for me for exercise, and I think it was helpful.

句子缺少系动词“was”，导致结构不完整；另外存在多余和错误的重复单词“it it”；短语“for exercising”用于此处不自然，通常用名词“for exercise”或形容词“for exercise purposes”；因主句叙述过去的动作和感受，应使用过去时“was helpful”。建议：在表示年龄时使用“was seven years old”，将“for exercising”改为“for exercise”，删除重复词，并保持过去时。

× Umm maybe. I think cars and subways are popular in my country now.

✓ Umm, maybe. I think cars and subways are popular in my country now.

原句问题主要是标点和连贯性而非时态错误；不过句子本身时态为现在时，与“now”匹配正确。建议加逗号以提高口语书面化的清晰度。此条属于时态检查（现在时使用正确），因此无需改动动词形式。

× Umm and bikes are not popular in my country.

✓ Umm, bikes are not popular in my country.

句子使用现在时描述当前情况，时态正确。主要是口语连接词“Umm and”不够自然，建议去掉“and”或换为逗号以更符合书面表达。时态无需更改。