Under a big tree ____ ,half asleep.

Under a big tree ____ ,half asleep.
A.did sit a fat man B.a fat man sat C.did a fat man sit D.sat a fat man

这是倒装句.
作状语的介词短语句首引起倒装句”基本用法 （比较容易记,状语提前,全部倒装；不过,注意谓语动词的单复数由后面的主语决定） 有时为了强调而将作状语的介词短语放在句首,而将主语放到句末从而形成倒装,这种倒装句中的谓语多为以下不及物动词：come,lie,stand,walk,且为全部倒装的形式.例如：Under the big tree was sitting an old farmer.大树下坐着一个老农夫.// Along the dusty road came a group of tourists.一群游客沿着尘土飞扬的路走来.// In the distance could be seen the purple mountains.在远处,可见到紫红色的群山.采用这样的倒装形式有时也是出于全句平衡的考虑：当主语较长时,为了使句子平衡,常以作状语的介词短语 开头.例如：On the ground lay some air conditioners,which are to be shipped to some other cities.地上放着一些空调,它们会被船运到其他城市去.〔考题1〕 Just in front of our house ____ with a history of 1,000 years.(2006上海春) A.does a tall tree stand B.stands a tall tree C.a tall tree is standing D.a tall tree stands 〔答案〕 B 〔解析〕 状语前置引起全部倒装,主语a tall tree 要完全放于谓语stands 之后.