Bike— Part 1 채점 보고서

제안: 句子多处时态和词汇错误，信息不直接且混淆了“自行车”和“包”。回答缺乏主题句和具体细节。改进建议： 1) 直接回答问题并用过去时（I had / My grandparents bought me）。 2) 用一到两句话补充细节（比如何时得到、谁给、你是否喜欢以及为什么）。 3) 使用连接词使语句流畅，如“when”, “because”, “so”。 示例练习句型："I had a bike when I was a child. My grandparents bought it for me when I was eight, and I loved riding it around the neighborhood because it gave me freedom."

예시: I had a bike when I was a child. My grandparents bought it for me when I was eight, and I used to ride it to the park every afternoon because it made me feel free.

제안: 回答总体能表达观点但存在语法和用词问题（主谓一致、时态及冗词），且语言不够具体。改进建议： 1) 注意主谓一致：use 'they are' 或 'bicycles are'而不是 'it's'. 2) 用更具体的例子或原因支持观点，如上班族骑车、城市自行车道增多或环保原因。 3) 避免填充词（uh），并用连接词（for example, because, so）组织句子。最多保持3-4句以保持自然。

예시: Yes, bicycles are very popular in my country. For example, many commuters ride bikes to work because they are cheap and convenient, and several cities have built dedicated bike lanes to encourage cycling.

× Yes, I have a bag. When I was a child my grandparents buy a bag for me.

✓ Yes, I had a bike. When I was a child my grandparents bought a bike for me.

错误类型：代词/词汇和时态混用（应归类为“Incorrect use of pronouns”和“Past tense issue”）。说明：原句中学生回答“Yes, I have a bag.”与问题（过去是否有自行车）不一致，且使用了“bag”而非“bike”。另外从句“When I was a child”是过去时，主句应使用过去时“bought”而不是现在时“buy”。建议：根据问题使用与过去时间一致的过去时态，把单词改为与问题一致的“bike”。简明改正建议：把“Yes, I have a bag.”改为“Yes, I had a bike.”，把“buy”改为过去式“bought”，并把“bag”改为“bike”。

× Yes, it's very popular. When you walk on the streets you can see a lot of people, uh, ride bike.

✓ Yes, they're very popular. When you walk on the streets you can see a lot of people riding bikes.

错误类型：现在时/主谓一致与动词形式问题。说明："Yes, it's very popular."中的主语应指“bikes”（复数），因此应使用复数代词或说法"They're very popular."。后半句中"ride bike"缺乏动名词或第三人称单数形式并且缺少复数名词，正确表达是使用动名词短语"riding bikes"或动词加复数名词。建议：把单数代词改为复数，使用动名词形式描述正在发生的动作，并把名词改为复数以匹配“a lot of people”。