OG12-73时态问题

wxiaobin

Combining enormous physical strength with higher intelligence, the Neanderthals appear as equipped for
facing any obstacle the environment could put in their path, but their relatively sudden disappearance during
the Paleolithic era indicates that an inability to adapt to some environmental change led to their extinction.
(A) appear as equipped for facing any obstacle the environment could put in their path,

(B) appear to have been equipped to face any obstacle the environment could put in their path,

(C) appear as equipped to face any obstacle the environment could put in their paths,

(D) appeared as equipped to face any obstacle the environment could put in their paths,

(E) appeared to have been equipped for facing any obstacle the environment could put in their path,

答案中的appear为什么用一般现在时，而不用过去时，很明显这个民族已经消失，那么至少应该是过去时，或者过去完成时

cynthia129

appear to 意思是“似乎”，是从现在的角度看的。相当于the evidence shows that the dinosaur was 18 metres tall.
表示这个种族消失用的是不定式 to 后面的have

wxiaobin

但是为什么用have been 而不用had been啊？？？他们不是已经在以前就消失了吗？？？应该是过去的过去用appear to had been 啊？？

cynthia129

appear to had been 是错误的表达，to后面只能是动词原形，表示现在和将来用to do,过去用to have done，没有to had done这样的表达。

wxiaobin

appear to had been 是错误的表达，to后面只能是动词原形，表示现在和将来用to do,过去用to have done，没有 ...
cynthia129 发表于 2013-6-17 06:21

那有to had been吗？？？

cookiezwy

当然没得咯！

wowuliao

哈哈~~理解了~~谢啦

bensealet

appear to是固定搭配吗

Jeffrey-N

因为infinitives 的form 只有 present & perfect 两种.
所以不存在为何不用past perfect tense。