【知识点详解】
在高中英语学习中，Unit 2 "English around the world" 的第三部分 Grammar & Writing 主要探讨了如何将直接引语转化为间接引语，特别是当直接引语是祈使句时的转换规则。祈使句在日常交流和写作中非常常见，因此掌握这种转换技巧对于理解和表达复杂语境至关重要。
1. **肯定祈使句的间接引语**：
当直接引语是肯定祈使句时，转换为间接引语通常会使用 "ask/advise/tell/order sb. to do sth." 结构。例如："Follow his instructions," she said to me. 转换为间接引语是：She told me to follow his instructions. 这里 "told" 是根据原句的语气和上下文选择的动词。
2. **否定祈使句的间接引语**：
如果直接引语是否定祈使句，如 "Don’t make a noise," 则使用 "ask/advise/tell/order sb. not to do sth."。例如："Don’t make a noise," he said to the children. 转换为间接引语是：He told the children not to make a noise. 动词的选择取决于原句的语气，可以是 "ask"、"advise"、"tell" 或 "order"。
3. **补充宾语**：
祈使句中通常没有明确的呼语（即动作的对象），在转换为间接引语时，需要根据语境补充适当的宾语。例如："Come here," 会变成 "He asked me to come here."
4. **时间、地点和指示代词的变化**：
直接引语中的时间、地点和指示代词在转换为间接引语时可能会发生变化，以保持时态的一致性和逻辑的准确性。例如，"this/these" 可能变为 "that/those"，"here" 可能变为 "there"，"now" 可能变为 "then"，"today" 可能变为 "that day" 等。
题目示例的转换：
1. "He said to the girl, ＂Do it at once.＂" -> "He ordered the girl to do it at once."
2. "Be quiet!" -> "I told the children to be quiet."
3. "He said to farmers, ＂Do things at the right time of the year.＂" -> "He told farmers to do things at the right time of the year."
4. "Don’t grow plants in the same place year after year." -> "The farmer told me not to grow plants in the same place year after year."
5. "Could you lend me a bike?" -> "He asked me to lend him my bike."
完成句子练习：
1. "Don’t forget to give the message to my wife," he said to Li Ping. -> He reminded Li Ping not to forget to give the message to his wife.
2. "Mum, please help me find my shirt," he said. -> He asked his mother to help him find his shirt.
3. The soldier ordered, "Be quiet." -> The soldier ordered us to be quiet.
4. "Don’t spend too much time on football!" Mother said to me. -> Mother advised me not to spend too much time on football.
5. "Will you sleep and get up early,"
请注意，英语祈使句转间接引语时，时态、人称和语序都会根据上下文有所调整，确保间接引语保持与原文一致的意思。在实际应用中，学生需要灵活运用这些规则，以准确地传达对话或指令的内容。
