have 使人做,还有使被做 等关于have用法的结构什么 have sth done have sth do

have 使人做,还有使被做 等关于have用法的结构什么 have sth done have sth do
have 使人做,还有使被做 等关于have用法的结构
什么 have sth done have sth do

have 使人做,还有使被做 等关于have用法的结构什么 have sth done have sth do
1.have sb/sth do sth 使得某人/物做某事
要求：宾语sb/sth和宾语补足语动词do之间是主动的关系,且do sth所表示动作一般未发生,或只强调动作本身.
如果句子变成被动语态时,to必须要补上.
如：I'll have Tom undertake this task.
Don't have the machine run when you leave.
2.have sb/sth doing sth 使得某人/物一直/总是做某事
要求：宾语sb/sth和宾语补足语动词do之间是主动的关系,且do sth所表示动作一直在发生,后面一般会加上表示时间段的短语.
如：The teacher has his students doing homework the whole afternoon.
Don't have the machine running all the time.
3.have sb/sth done 使得某人/物被...
要求：宾语sb/sth和宾语补足语动词do之间是被动关系.
如：I'll have my hair cut tomorrow.
You can't have your son beaten by others children.

前者指的是使某物处于某种被处理过的状态如have your face washed.后者指的是使某人做某事如have you wash your face另外还有have sth. doing是指使某人或者物处于某种动态的状态如have the water running