PREP07 24 ABC选项 求解

xiaoxiaomi

24.(29155-!-item-!-188;#058&003857)

Tiger beetles are such fast runners that they can capture virtually any nonflying insect.However, when running toward an insect, the beetles intermittently stop, and then, a moment later, resume their attack.Perhaps they cannot maintain their pace and must pause for a moment's rest; but an alternative hypothesis is that while running tiger beetles are unable to process the resulting rapidly changing visual information, and so quickly go blind and stop.

Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?

(A) When a prey insect is moved directly toward a beetle that has been chasing it, the beetle immediately turns and runs away without its usual intermittent stopping.

(B) In pursuing a moving insect, the beetles usually respond immediately to changes in the insect's direction, and pause equally frequently whether the chase is up or down an incline.

(C) The beetles maintain a fixed time interval between pauses, although when an insect that had been stationary begins to flee, the beetle increases its speed after its next pause.

(D) If, when a beetle pauses, it has not gained on the insect it is pursuing, the beetle generally ends its pursuit.

(E) When an obstacle is suddenly introduced just in front of running beetles, the beetles sometimes stop immediately, but they never respond by running around the barrier.

根儿哥1989

我选的B  同求指导，UP  UP

littlexian

I got B too~

cutemushroom

班蝥速度特别快能够捕捉到几乎所有不会飞行的昆虫。然而当它朝一只昆虫跑来的时候，它会间歇性的停一下然后再重新攻击猎物。猜想一是它无法控制自己的节奏需要停下来歇一会。猜想二是当奔跑时无法对视觉信心进行加工因此需要停下来。
Which of the following, if discovered in experiments using artificially moved prey insects, would support one of the two hypotheses and undermine the other?
那个选项将会削弱一个猜想并且加强另一个猜想
这道题的关键是哪个选项否定一个猜想并且肯定另一个猜想，因此任何对两个猜想都支持或都排斥的选项都不能成立
(C) The beetles maintain a fixed time interval between pauses, although when an insect that had been stationary begins to flee, the beetle increases its speed after its next pause.
班蝥停顿的间隔时间都是一样的，尽管它的猎物之前是静止然后开始飞，它都是在停顿之后才加速。如果它是在加工图像信息，那么在猎物静止的时候应该停顿不需要那么长，而之所以每次都一样长的原因就是它需要停下来调整自己的节奏。与猎物的动静无关。
(B) In pursuing a moving insect, the beetles usually respond immediately to changes in the insect's direction, and pause equally frequently whether the chase is up or down an incline.在追逐猎物的时候，斑蝥对于猎物方向的改变非常反应灵敏，不管它的追逐方向是向上或向下它停顿的频率都是一样的。这个既可以解释为斑蝥利用停顿来调整节奏，也可以认为它是在加工图像信息，因为方向变了图像也就不一样了。两个猜想都支持，不正确。

cutemushroom

希望是正确的，小女才疏学浅只能分析到这份上了

nileshu

支持！我也是这么理解的。