题目

长难句分析.
The purpose would be to enhance Crosby's income and partisally offset any untimely depreciation in the protfolio's value should the stock market or other circumstance affect his holding unfavorably.
着这个句子中,should the stock market or other circumstance affect his holding unfavorably.这部分我感到很突兀.我感觉这部分前面的句子意思已经完整了,还有should在名词前面是倒装句么?

提问时间：2020-11-30

答案

The purpose是主语
would be是系动词
to enhance Crosby's income and partisally offset any untimely depreciation in the protfolio's value是表语
后面是 省略if的虚拟条件句 省略if 后 句子 要倒装 should the stock market or other circumstance affect his holding unfavorably.=if the stock market or other circumstance should affect his holding unfavorably.
本句是 与将来情况可能相反的虚拟语气