Question

have sb do sth的用法是什么呢

Answer 1

1. 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。
2. 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。