高中英语语法,老师们帮帮忙

问题描述:

高中英语语法,老师们帮帮忙
1provided引导条件状语从句,可以放在句首吗?我只知道providing可以,怎么用法?
2There was an oil painting____in the corner,It____for several days
第一空填的是lying第二空填的是had lain
但我不知道为什么要这么填,请详细正确解析下

答:第一个问题,查词典就可以圆满解决:
provided
/prE5vaIdId; prE`vaIdId/ (also provided that, providing / prE5vaIdIN; prE`vaIdIN/, providing that) conj on the condition or understanding that 在...情况或条件下; 假若; 倘若; 除非
I will agree to go provided/providing (that) my expenses are paid. 假如为我负担费用, 我就同意去.
Provided we get good weather it will be a succesful holiday. 如果天气良好, 我们的假日将过得非常好.