例句1:One way to test this would be for a person to journey from coast to coast without any money.
例句2:What they need above all is for someone to spend more.
例句3:The last thing you want is for someone to turn up the heat.
例句中for是什么用法?尤其是这种句型:be for someone to do sth
 《高考英语备考1号·速效编》
						《高考英语备考1号·速效编》
					 《高考英语备考1号·写作编》
						《高考英语备考1号·写作编》
					 《高中英语晨读晚记》
						《高中英语晨读晚记》
					 《高中英语错题笔记》
						《高中英语错题笔记》
					 《零起点考大学英语》
						《零起点考大学英语》
					