Bike— Part 1 Report

Suggestion: 回答直接，包含了年龄、颜色和用途，结构基本清晰。但有明显的重复和口误：“it was, it was”应删去；“by bike”应改为“bright red bike”；“I wrote it”应改为“I rode it”。此外，可以使用“also”连接第二个用途，并补充一个具体感受，使答案更自然、更完整。

Example: Yes, I had a bike when I was about ten years old. It was a bright red bike, and I rode it to school every day. I also used it to visit my friends and play with them after school. I was really proud of it because it was my first bike.

Suggestion: 回答表达了明确观点，也尝试用历史背景和“so”解释原因，但语法和句子完整性问题较多。“I am born in China”应改为“I was born in China”；“in 1990s”应改为“in the 1990s”；“China’s economy ... are”应改为“China’s economy ... was”；最后的“and”造成句子未完成。建议同时说明现在的情况，并用“Although”或“However”进行今昔对比，内容会更具体、更有逻辑。

Example: Yes, bikes are still quite popular in China, although their role has changed over time. In the 1990s, many people rode bicycles to work or school because the economy was less developed and cars were less affordable. Nowadays, people also use shared bikes for short trips, especially in large cities.

× It was a bright red by bike.

✓ It was a bright red bike.

“by”在这里是多余的。描述自行车的颜色和名词时，应该直接说“a bright red bike”。“by bike”通常表示“骑自行车这种交通方式”，例如“I went to school by bike.”

× I am born in China.

✓ I was born in China.

“出生”是已经发生的过去事件，因此应使用一般过去时。这里的正确表达是被动结构“was born”，而不是现在时“am born”。

× China's economy in 1990s was underdeveloped.

✓ China's economy in the 1990s was underdeveloped.

表示某个特定的十年时，年代前通常要加定冠词“the”，所以应说“the 1990s”，不能说“in 1990s”。

× China's economy in the 1990s are underdeveloped.

✓ China's economy in the 1990s was underdeveloped.

主语是单数名词“China's economy”，所以谓语不能用“are”。此外，这里描述的是20世纪90年代的情况，应使用过去式“was”。

× China's economy in the 1990s are underdeveloped.

✓ China's economy in the 1990s was underdeveloped.

“the 1990s”指过去的时间，因此应使用一般过去时。将“are”改为“was”可以表达当时中国经济不发达的情况。

× At that time many people rode bikes to go to work, go to school and.

✓ At that time, many people rode bikes to work and school.

句子以“and”结尾，后面没有完整的并列成分，因此结构不完整。可以删除多余的“go to”，直接使用平行结构“to work and school”。同时，在时间状语“At that time”后加逗号，句子会更清晰。