使役动词
1、Have, make, let做使役动词
构成形式为：
Have/make/let + 宾语+ 动词
He made me laugh
I let him go
Please have him come here (让他来这)
2、get 和 help都是使役动词
Get 格式： get + 宾语+to+v
Help的格式：help+宾语+（to）+v
I can’t get anyone to do the work properly.
I helped him(to) repair the car.
3、所有的使役动词+宾语+过去分词“表示”让某人/某物被别人……
I must get my hair cut
He couldn’t make himself heard.
Can you get the work finished in time？
