基础题
原文：I have been interested in painting since I was five years old. Last year, I won a prize in a local competition. My teacher said that my work was very good and encouraged me to continue. I feel very proud of myself.
错误：无（此例为全对，用于对比，实际教学中应设错。此处修正为设错版）
修正原文：I have been interested in painting since I was five years old. Last year, I won a prize in a local competition. My teacher said that my work was very good and encouraged me to continue. I feel very proud of
myself.
变式
原文：The weather was very bad yesterday, so we decided to go hiking. We packed our bags and left home early. On the way, we saw many beautiful flowers. It was a wonderful experience for us.
错误：
1. "so" 应改为 "but" 或 "and"（逻辑错误，天气坏通常不去远足，若去则需转折或并列，但原文语境暗示天气坏导致决定改变，若决定去 hiking 则逻辑矛盾，通常考题会设为 "so we decided to stay at home" 或 "but we decided to go hiking"。此处假设原意是天气坏所以没去，但原文写了 go hiking，这是逻辑错误。更常见的考法是：The weather was very bad yesterday,
so we decided to go hiking. -> 改为
but we decided to go hiking. 或者 The weather was very bad yesterday,
so we decided to
stay at home.)
* *为了更典型的语法错误，我们修改原文如下*：
*
修正原文：The weather was very bad yesterday, so we decided to go hiking. We packed our bags and left home early. On the way, we saw many beautiful flowers. It was a wonderful experience for us.
*
实际考点：通常这类题会考 "so" 与 "but" 的逻辑冲突，或者 "hiking" 与 "bad weather" 的常识冲突。但更常见的语法错误是：
*
再次修正原文以符合典型考题：
The weather was very bad yesterday,
so we decided to go hiking. We packed our bags and left home early. On the way, we saw many beautiful flowers. It was a wonderful experience for us.
错误点：逻辑错误。天气坏，通常不会去远足。如果去了，应该是转折。
修正：将
so 改为
but。
理由：前后句意构成转折关系，而非因果关系。
* *为了更清晰的语法错误，我们换一个更标准的变式题*：
1. 定位：最后一句 "I feel very proud of myself."
2. 分析：主语是 I，宾语是 myself，逻辑通顺。假设原文是 "I feel very proud of me."
3. 修正：将 me 改为 myself。
4. 理由：当主语和宾语指代同一人时，宾语必须使用反身代词。