当直接引语是祈使句时

直接引语为祈使句，变为间接引语可用如下的结构“主语+asked/advised sb. (not) to do sth.”。

1、需将原祈使句中谓语动词变成不定式。如果祈使句为否定句，则用不定式的否定形式，即在不定式前加not。

2、原主句谓语动词said须改为asked，told，ordered，warned或advised等含有祈使意义的能带宾补的及物动词。

3、原句有“please”时，主句谓语多用asked(请求)，并去掉please。例如：

He said to me, “Shut the window, please.”

→He asked me to shut the window.

He said, “Don’t make so much noise.”

→He told us not to make so much noise.

如果以let开头的祈使句表示劝告或建议，可用“suggest + that从句”或“suggest doing”来转述。例如：

“Let’s go to the cinema.” Tom said.

→Tom suggested that they (should) go to the cinema.

→Tom suggested going to the cinema.