OG 12 73题 求解释

12711399

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 disappearnce during the paleolithic era indicates that an inability to adapt to some environmental change led o 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 path,
E)appeared to have been equipped for facing any obstacle the environment could put in their path,

选项B
appear to have been这个have been不是有着过去发生并且还在进行的意思吗？neanderthal不是已经灭绝了，那这个have been怎么适合呢？

DUKB24

quote:

Perfect Infinitives are used to express events that happen prior to the verb.


In this sentence, the meaning to be expressed is as follows:


In present context, it appears to the people that Neanderthals had some characteristics in the past when they existed.
- "appear" is the verb relative to which sequencing needs to be established.