have sb do
have sb doing
have sb done
三者有什么区别?
像have sb ……这类多种形式的对于have sth ……有么?如果有,有什么区分?

答:have sth. done,have sb. do sth 与 have sb./ sth. doing 三种结构,不少同学对这些结构区分不清,把握不准。现在我对这三种结构作一简单的分析和归纳,供你学习时参考。
  一、 have sth. done

  “have + sth. (宾语)+ 过去分词(宾语补足语)”意为“让 / 叫 / 使 / 请别人做某事”。宾语sth.后面用过去分词作宾语补足语,说明sth.与过去分词表示的动作之间是被动关系。例如:

  We had the machine mended just now.

  我们刚才请人把机器修好了。

  He has had his hair cut.

  他(请人给他)理发了。

  The patient is going to have his temperature taken.

  这个病人准备请 / 叫 / 让人量体温。

  二、 have sb. do sth.

  “have + sb.(宾语)+ do sth.(宾语补足语)”意为“让 / 叫 / 使某人做某事”。此结构中的 have 是使役动词,sb. 作宾语,其后的 do sth.是省去 to 的动词不定式作宾语补足语。例如:

  The boss often has them work for 14 hours a day.

  老板经常要他们一天工作14 个小时。

  I'll have someone repair the bike for you.

  我会让人为你修理自行车的。

  三、 have sb. / sth. doing

  “ have +sb. / sth. (宾语)+ 现在分词(宾语补足语)”意为“叫 / 让 / 使某人做某事或让某种情况发生”。宾语 sb./sth .后面用现在分词作宾语补足语,表示宾语与现在分词表示的动作之间为主动关系,且动作正在进行。例如:

  Don't have the baby crying! 不要让婴儿啼哭!

  Don't have the dog barking much,Lilin. 李林,别让狗狂吠不停。

  You'd better have your car running slowly. 你最好把车子开慢点。