这题大概是说，虎甲虫可以抓到任何没有在飞的动物 但当虎甲虫朝昆虫(猎物)冲去，它不时会停顿一下，然後再继续它的攻击 对於这样的间隔的停顿有两种假设 1.有人认为虎甲虫无法持续不停止的进行它的攻击路线，需要行进间须停顿休息 2.虎甲虫行进间无法及时的接收处理视觉，暂时会处於看不见的状态，所以才会有停顿 a.已经离题，他说当虎甲虫的猎物转而朝虎甲虫跑来，虎甲虫会一反常态的不做停顿跑走 (个人觉得这选项超像笑话的 XD) bc可以一起做讨论 b.他说在虎甲虫进行攻击的时候，会及时反应猎物上下左右移动、改变方向， 并且过程中虎甲虫所作的停顿是规律的。 c.这个选像是说，尽管面前猎物从静止到开始移动，虎甲虫仍按照自己规律的步调停顿 但是它会为了去捕捉猎物而加速移动 因此C比B更加支持了假设1，虎甲虫有它自己的停顿步调而作休息，而不是随猎物而改变 另外虎甲虫也会在停顿後加速去追捕猎物，证明刚刚在他眼前的猎物开始移动这件事情， 虎甲虫是有看到的，因此假设二它无法及时处理眼前快速接收到的视觉这个理论就被 削弱了 d跟e就先不打了>"< PS 个人解读>"< 有错请大家不吝纠正一下喔!!!! ※ 引述《poco916 (可以温柔却有力量)》之铭言： : 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. : Ans:C : 这一题真的很疯狂，不懂C如何支持其中一个假设，削弱另一个..... : 有没有人知道呢？ --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 60.245.74.203 ※ 编辑: pinkdejavu 来自: 60.245.74.203 (10/16 18:48)