Bike— Part 1 채점 보고서

제안: 回答时时态使用不正确，且句子结构过于简单。建议使用正确的过去时态并给出简短的补充细节（如谁给的、骑了多久或为什么没有），总句子数不超过5句，使用连接词使表达更自然。

예시: I didn’t have a bike when I was a child. My parents couldn’t afford one, so I usually walked to school. However, I remember occasionally borrowing a neighbor’s bike during summer holidays.

제안: 回答总体清晰但略显平铺直叙。建议加入具体细节或比较（如在城市与乡村的差别、原因或例子），并使用连接词丰富句子，使回答更自然、有说服力。

예시: Yes, bikes are very popular in my country because they are cheap and convenient. For example, many people cycle to work in big cities to avoid traffic, while in rural areas bikes are commonly used for short errands or going to the market.

× I don't have a bike when I was a child.

✓ I didn't have a bike when I was a child.

问题类型：现在时/过去时使用错误。句子中有时间状语“when I was a child”，表示过去时态，助动词和动词也应使用过去时。原句使用了现在时的否定形式“don't have”，与时间状语不一致。建议：把助动词改为过去式“didn't”，动词用动词原形，因此改为“I didn't have a bike when I was a child.”。

× Yes, bikes are very popular in my country, so many people ride a bike to work or school.

✓ Yes, bikes are very popular in my country, so many people ride bikes to work or school.

问题类型：单复数问题。前半句使用复数“bikes”，后半句却用不定冠词短语“ride a bike”，这会让句子在数的一致性上显得不自然。表达“许多人骑自行车”时更常用复数名词或不加冠词的泛指。建议：将“ride a bike”改为“ride bikes”或“ride a bicycle”以保持一致并更自然。