prep题目求解！！！

traviszhu

170.    (29988-!-item-!-188;#058&004661)    (GWD21-Q12)

Birds known as honeyguides exhibit a unique pattern of behavior: the bird leads another animal, such as a honey-badger or a human, to a bees’ nest with their chattering when they fly ahead; after the larger animal takes honey, the bird eats the wax and bee larvae.
A. with their chattering when they fly
B. with chattering and its flying
C. by chattering as it flies
D. by chattering and its flying
E. by chattering as they are flying
选 C 怎么解释啊

gracezz

这句子的骨头是：
.....: the bird leads Another animal....to a nest by chattering....;.....

就是这个鸟用chatter的方法领着另一个动物到了一个nest...

do something by doing something

GraceZhou

the bird leads another animal，such as a honey-badger or a human, to a bees’ nest by chattering as it flies ahead
主语是the bird 所以是单数，排除A&E
通过什么方式用by，而且我个人觉得如果用with可以引起歧义，因为可以和nest连接，排除A&B
as做“当”讲
D项and its flying 没有对象和其平行
没做过这个题，也不知道这么说对不对，欢迎指正

salasbond

楼上们说的对。

chatter 是 fly 产生的，是fly的方式。所以不能用and和fly并列。
排除BD，

只能选C

zxppx

Birds known as honeyguides exhibit a unique pattern of behavior: the bird leads another animal, such as a honey-badger or a human, to a bees’ nest with their chattering when they fly ahead; after the larger animal takes honey, the bird eats the wax and bee larvae.
A.     with their chattering when they fly
B.     with chattering and its flying  原句中用的when，而这里改为and并列关系，缺少了同时、伴随的含义
关键是,chattering是动词，而后面的(its) flying是名词，两者不平行
C.     by chattering as it flies
D.     by chattering and its flying  同B
E.     by chattering as they are flying

Hliujing

Subject do sth by doing sth...

enjoygmat2013

求问哪位大牛可以深度解析一下这里面的AS呀  谢谢啦！！