allow的用法 DOING 和 TO DOING 的区别

Question

如题所述

Answer 1

allow既可作及物动词又可作不及物动词(多用于及物动词)，
1）allow sb. to do sb.允许某人去做某事，
The doctor allowed him to smoke. 医生允许他吸烟.

2）allow sb doing sth.允许某人做某事,可以表示当前可允许做的事或习惯性动作。根据上下文有时sb可以省略。如：

Is not allow (anyone)smoking in this meeting room. 这间会议室里是不允许吸烟的.

类似的词还有:advise,forbid, permit, encourage等,如:
3) We advised him to have a good rest. 我们劝他好好休息.
4) He advised going to Beijing for the holiday. 他建议到北京去度假.

Answer 2

allow做及物动词，后面跟doing 是动名词做宾语：allow smoking
allow somebody to do something中to do sth作宾语补足语: Please allow me to introduce myself.