gre阅读求助

Wild Diana monkeys are preyed upon by leopards and chimpanzees. These two predators
differ in their hunting tactics and Diana monkeys use two distinct antipredator strategies to
defend themselves. After detecting a leopard, Diana monkeys respond by giving loud,
conspicuous alarm calls that function both to warn others and to signal to the predator that it
has been detected Leopards tend to leave the area once they have been discovered. In
contrast, upon detecting a chimpanzee, male Diana monkeys do not vocalize at all, while
females give only a few quiet alarm calls and flee quickly to hide in the forest canopy,
chimpanzees have sophisticated climbing skills that would allow them to pursue monkeys,
even in the high strata of the forest canopy.
Choosing an antipredator strategy appropriate to chimpanzees is complicated for Diana
monkeys by the fact that chimpanzees themselves also fall prey to leopards. When
encountering a leopard, chimpanzees give loud, conspicuous alarm calls. To escape
successfully from leopards and chimpanzees, therefore, Diana monkeys must distinguish
between, and respond differently to, chimpanzees alarm calls and chimpanzee vocalizations
simply signal the presence of a leopard and should elicit the monkeys’ loud, conspicuous
alarm calls.
To investigate Diana monkeys’ understanding of such cause-effect relationships involving
predators, Zuberbuhler examined the monkeys’ responses to chimpanzee vocalizations in two
different types of experiments. In the first, he played tape recording of either chimpanzees’
alarm calls or their social vocalizations and noted the monkeys’ responses. Diana monkeys
differed in their response to chimpanzees’ alarm calls. In some groups, monkeys behaved as if
they recognized that these alarm calls signaled the potential presence of a leopard: they
responded to chimpanzees’ leopard alarm calls by giving leopard alarm calls themselves, in
contrast to their normal response to the presence of chimpanzees. Groups of monkeys living
in the core area of the resident chimpanzee community were more likely to behave in this way
than were peripheral groups.
In the second set of experiments, Zuberbuhler played leopard growls to Diana monkeys shortly
after exposing them to recording of either chimpanzees’ alarm calls or their social
vocalizations. After first hearing chimpanzees’ alarm calls, some monkeys failed to respond to
the subsequent recording of leopard growls, even though this stimulus normally elicited a
strong vocal response. These monkeys behaved exactly like the Diana monkeys in a
comparison group, who also gave many leopard alarm calls to an initial recording of leopard
growls but no longer called to the second recording of leopard growls five minutes later. This
similarity in behavior suggests that these monkeys had some knowledge of the causal factors
underlying the production of chimpanzees’ alarm calls.
1. According to the passage, the behavior of male and female Diana monkeys differs in that
female Diana monkeys
A. give alarm calls upon detecting a chimpanzee
B. hide in the forest canopy upon detecting a leopard
C. give loud alarm calls in response to chimpanzees’ alarm calls
D. give loud, conspicuous alarm calls upon detecting a leopard
E. respond differently to the presence of leopards than they do to the presence of
chimpanzees
考满分All In One 考满分GRE阅读 !1902. It can be inferred that the purpose of the highlighted “loud, conspicuous alarm calls” is in
part to
A. cause the chimpanzees to leave the areas
B. warn other monkeys of the presence of the chimpanzees
C. enable chimpanzees to flee quietly from the leopard
D. signal to the chimpanzees that they have been detected
E. signal to the leopard that it has been detected by the monkeys
3. The author mentions the “sophisticated climbing skills” of chimpanzees most likely in order
to present information that helps to
A. explain why chimpanzees are less vulnerable to predation by leopards than are Diana
monkeys
B. question the hypothesis that Diana monkeys hide in the forest canopy to defend themselves
from chimpanzees
C. argue that the antipredator strategies Diana monkeys use to defend themselves against
chimpanzees
D. suggest a possible reason for chimpanzees’ and Diana monkeys’ use of similar antipredator
strategies to defend themselves against leopards



第三题的答案是D。有木有同学知道为什么呀？我觉得题中的chimpanzee 的sophisticated climbing skills和c躲避leopard的策略（发出叫声 ）之间的关系文中并没有提到啊。我选了C 不知道C为什么不对~

同问~我选的也是D

C不对是因为猩猩也可以爬上树枝的部分，所以猴子爬上树枝部分是没有用的。但是对leopards不同

这题有点迷，我选C是觉得他说猩猩可以爬是为了解释为什么猴子在发现猩猩的时候不叫或者很小声，因为如果叫了猩猩可以追... 这是不是属于脑补过度了，D选项当时觉得差的有点远，但是现在回头看好像可以跟下一段衔接，不过英语阅读不是很少有这种跨段落的考法吗

这道题是有点问题的，D选项明显是下一段的内容了啊，同觉得就是因为猩猩爬树很厉害，所以猴子要快点跑，不能发出声音

这题我感觉见鬼了。我支持C，正如楼上所说D在下一段才开始提及，而且首段“allow them to pursue monkeys”很明确地暗示了C选项