prevent sb.doing sth.\stop sb.from doing sth\keep\protect有什么区别?

prevent sb.doing sth.\stop sb.from doing sth\keep\protect有什么区别?
prevent sb.doing sth.\stop sb.from doing sth\keep\protect有什么区别?

prevent sb.doing sth.\stop sb.from doing sth\keep\protect有什么区别?
prevent sb from doing sth与stop sb from doing sth用法相同,在主动语态中from可以省略,被动语态中不行.
keep sb from doing sth中的from无论在主动语态中还是在被动语态中都不能省略.
protect...from...表示“保护……不受……侵袭,挡住,防御”.from后接能带来伤害或损害之物.

prevent sb from doing sth与stop sb from doing sth用法相同，"阻止...做...” 在主动语态中from可以省略，被动语态中不行。
keep sb from doing sth中的from无论在主动语态中还是在被动语态中都不能省略。“ 阻止...做...”
protect...from...表示“保护……不受……侵袭”...

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prevent sb from doing sth与stop sb from doing sth用法相同，"阻止...做...” 在主动语态中from可以省略，被动语态中不行。
keep sb from doing sth中的from无论在主动语态中还是在被动语态中都不能省略。“ 阻止...做...”
protect...from...表示“保护……不受……侵袭”

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