Bike— Part 1 Report

Suggestion: 回答直接回应了问题，也提到了自行车的颜色和辅助轮，但有几处明显的语法和搭配错误。应将“which brought by my father”改为“which was bought by my father”或“which my father bought for me”；“This bike is red”应使用过去时“This bike was red”；“two support wheel”应改为“two training wheels”。另外，可以补充一个具体细节，例如你在哪里骑车或学骑车时的感受，使答案更完整、更自然。

Example: Yes, I had a bike when I was a child. It was red and had two training wheels, which my father bought for me. I often rode it around our neighborhood, and it helped me learn how to balance on two wheels.

Suggestion: 答案观点明确，并且进行了城市之间的对比，内容方向很好。不过，“Some cities flat”缺少系动词，应改为“Some cities are flat”；“some city”应改为“some cities”；“the bike is actually popular”更自然的表达是“bikes are quite popular”；“a mountain”应为复数或更准确地说“are mountainous”。建议使用更清晰的连接词，如“whereas”或“by contrast”，并补充一个具体例子，例如平坦城市中的通勤或共享单车。

Example: I think it depends on the city. In flat cities, bikes are quite popular because people can use them for commuting and short trips. By contrast, cycling is less common in mountainous cities, where the steep roads make it tiring and inconvenient.

× Yes, I had a bike when I was a child, which brought by my father. This bike is red with two support wheel.

✓ Yes, I had a bike when I was a child, which was brought by my father. This bike is red with two support wheel.

“which brought by my father”表示“被我父亲带来”，需要使用被动语态。一般过去时的被动结构是“was/were + 过去分词”，所以应改为“was brought”。

× Yes, I had a bike when I was a child, which brought by my father. This bike is red with two support wheel.

✓ Yes, I had a bike when I was a child, which was brought by my father. This bike is red with two support wheels.

“two”后面必须接可数名词复数，因此“wheel”应改为“wheels”。另外，“support wheel”虽然可以理解，但更自然的表达是“training wheels”（辅助轮）。

× I think it depends because my country has different cities. Some cities flat, the bike is actually popular, but some city is built on a mountain which is not very convenient for using bikes.

✓ I think it depends because my country has different cities. Some cities are flat, and bikes are actually popular there, but some city is built on a mountain, which is not very convenient for using bikes.

“Some cities flat”缺少系动词。描述城市的状态时，需要使用“be动词 + 形容词”，所以应改为“Some cities are flat”。

× I think it depends because my country has different cities. Some cities flat, the bike is actually popular, but some city is built on a mountain which is not very convenient for using bikes.

✓ I think it depends because my country has different cities. Some cities are flat, and bikes are actually popular there, but some city is built on a mountain, which is not very convenient for using bikes.

“Some cities are flat, the bike is actually popular”用逗号连接两个完整句子，句子结构不完整。可以添加并列连词“and”，并使用“there”明确指代这些平坦的城市。

× I think it depends because my country has different cities. Some cities flat, the bike is actually popular, but some city is built on a mountain which is not very convenient for using bikes.

✓ I think it depends because my country has different cities. Some cities are flat, and bikes are actually popular there, but some cities are built on mountains, which are not very convenient for using bikes.

前面使用了“Some cities”，后面进行对比时也应使用复数“some cities”。同时，“mountains”与多个城市对应，使用复数会使表达更自然。

× I think it depends because my country has different cities. Some cities flat, the bike is actually popular, but some city is built on a mountain which is not very convenient for using bikes.

✓ I think it depends because my country has different cities. Some cities are flat, and bikes are actually popular there, but some cities are built on mountains, which are not very convenient for using bikes.

主语“some cities”是复数，因此谓语不能使用单数形式“is”，应改为复数形式“are”，即“some cities are built”。