UC知道问一道高中的英语题
来源：百度知道 编辑：UC知道 时间：2024/06/07 22:19:21
原句：It(Puma) immediately ran away when she saw it.
_________, it immediately ran away.
a.Observing her b.On being observed c.Having been observed
d.On her being observed
另外: As no pumas had been reported missing from any zoo in the country. 在这里mising的用法~
谢谢
顺便解释一下 B D两个答案用on 是什么意思
_________, it immediately ran away.
a.Observing her b.On being observed c.Having been observed
d.On her being observed
另外: As no pumas had been reported missing from any zoo in the country. 在这里mising的用法~
谢谢
顺便解释一下 B D两个答案用on 是什么意思
选B 首先告诉你这是新概念第三册第一课的原文（好像叫A Puma at large逃遁的美洲狮。。A woman picking blackberries saw a large cat only 10 yards away from her. It immediately ran away when she saw it, and experts confirmed that a puma won't attack a humanbeing unless it is cornered.大概是这样子有点记不清了。。）
句中when表示当……时immediately说明不能用C（完成进行时）因为是当时发生的事 ON……表示一……就……
missing进行时表状态（当然 是美洲狮的状态。。）：因为全国的动物园没有一家报告丢了美洲狮。。
B
它一被看见，立刻就跑掉了！
一。。。就
c
C 主谓不一致， 用被动
选b,首先是被动不用说了.on在这里表示时间,表示特定时间时介词用on. 如he will come to meet us on our arrival.
b