(1)“Bob, be sure to lock the door before you go to bed, ”Mother said to Bob.
→Mother asked Bob to be sure to lock the door before he goes to bed.
(2)The teacher told his students, “Watch me carefully when I do this experiment. ”
→The teacher told his students to watch him carefully when he does that experiment.
2. 表示建议等的祈使句
当直接引语为表示建议、提议、请求、劝告的祈使句(或表示请求、提议、劝告、建议的疑问句)时, 多用suggest+doing/that从句(suggest后接that从句时, 从句使用虚拟语气should+动词原形, should也可省略), 及ask/advise/want/beg+sb. +to do等结构。
*“Shall we listen to the music? ” he asked.
→He suggested listening to the music.
→He suggested that we should listen to the music.
→He advised us to listen to the music.
