prep2008版的第200题，关于不定式的逻辑主语

Sunnie1993

A scrub jay can remember when it cached aparticular piece of food in a particular place, researchers have discovered,and tend not to bother to recover a perishable treat if stored longenough to have rotted.

A.     tendnot to bother to recover a perishable treat if

B.     theytend not to bother recovering a perishable treat

C.     tendingnot to bother to recover a perishable treat it

D.     tendsnot to bother recovering a perishable treat     (D)

E.     tendsnot bothering to recover a perishable treat it

此题选d，完整的句子就是A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tends not to bother recovering a perishable treat stored long enough to have rotted.

有一个问题不明白：如果不定式的逻辑主语是句中主语，那么to have rotted的逻辑主语不就是a scrub jay了吗？按照句意，应该是treat为to have rotted的主语啊？实在有点蒙。希望好心的小伙伴来帮忙解答。

shalloyn

tend的主语是a scrub jay, researchers是插入语，所以tend用tends, stored long enough to have rotted修饰treat