【zombie在路上】final battle ！

esther小冰

僵尸先生加油~~~~

晨依Jacqueline

僵尸先森中午好咩~
晨依来视察鸟~~~加油做作业喔

kaitlynyl

这道题我曾经也晕过。。。

这道题巨晕

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.  erhaps 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.

-- by 会员 zombiee (2012/5/30 21:47:35)

加强+削弱，这题比较绕
B选项。。。猎物转向豹子立马就反应过来，证明没瞎；休息等量的时候，当这个抓捕的方向是上或者下，没有削弱它休息是为了保持速度
C although引起注意，就算猎物静止了一段时间马上要跑豹子还是照样要休息，证明转向的时候豹子瞎了，加强；每次的速度提升了，increases，证明不是为了维持速度，削弱
其他选项都比较无关

-- by 会员 DUKB24 (2012/5/30 21:54:44)

懂了，小娃儿功力深厚，仰慕

-- by 会员 zombiee (2012/5/31 8:53:47)

zombiee

这道题我曾经也晕过。。。

这道题巨晕

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.  erhaps 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.

-- by 会员 zombiee (2012/5/30 21:47:35)

加强+削弱，这题比较绕
B选项。。。猎物转向豹子立马就反应过来，证明没瞎；休息等量的时候，当这个抓捕的方向是上或者下，没有削弱它休息是为了保持速度
C although引起注意，就算猎物静止了一段时间马上要跑豹子还是照样要休息，证明转向的时候豹子瞎了，加强；每次的速度提升了，increases，证明不是为了维持速度，削弱
其他选项都比较无关

-- by 会员 DUKB24 (2012/5/30 21:54:44)

懂了，小娃儿功力深厚，仰慕

-- by 会员 zombiee (2012/5/31 8:53:47)

-- by 会员 kaitlynyl (2012/5/31 12:15:40)

又分析了一遍：
B：虎甲是快速奔跑的虫子，可以追到任何不飞的昆虫。然而，当追捕一种昆虫它会间歇性停顿然后过一会儿再发起攻击。
P1：它们不能保持步调必须歇一会儿；P2：奔跑的虎甲不能看清楚必须停下来才能看清
evaluate：前提（背景）不变，必须是这货在奔跑中发生的事儿。比如：它体力不支，但是看得清猎物干什么；它体力很好，但是猎物跑到别的地方了它没察觉
A．当猎物冲它跑过来时，无关（必须在它奔跑时，否则无法判断）
B．在它追猎物时看得清猎物改变方向（反驳P2），上坡和下坡时停顿的时间是一样的（反驳P1。
C．它间歇性停顿的时间是固定不变的，虽然当猎物由静止开始逃窜，虎甲在下一次停顿后增速。（静止开始追还需要停顿，而且时间不变说明不是体力问题反驳P1）
D．如果当它停顿时没有捕到猎物，它就不追了，无关
E．当障碍物突然出现在它面前，它有时候会马上停止，但是不绕过障碍物，无关（能看清障碍物和看清猎物无关，而且它没有绕过去到底看清没不知道）
tiger beetle虎甲（一种甲虫）；

zombiee

僵尸先生加油~~~~

-- by 会员 esther小冰 (2012/5/31 10:23:12)

谢谢，你也加油

zombiee

僵尸先森中午好咩~
晨依来视察鸟~~~加油做作业喔

-- by 会员 晨依Jacqueline (2012/5/31 12:11:47)

对于我这种严重耗油型晨依来的总是很及时，加上了，哈哈

DUKB24

B选项那里。。。。后半部分。。。umm..个人意见，open to discuss
只是说了要停止相同的时间 whether the chase的方向是上或者下，没有点出关键词速度
我觉得是irrelevant...
真正要削弱的话应该是说这个豹子休息的目的并不是maintain its speed

zombiee

B选项那里。。。。后半部分。。。umm..个人意见，open to discuss
只是说了要停止相同的时间 whether the chase的方向是上或者下，没有点出关键词速度
我觉得是irrelevant...
真正要削弱的话应该是说这个豹子休息的目的并不是maintain its speed

-- by 会员 DUKB24 (2012/5/31 12:27:36)

manhattan说了：

Quote:

In pursuing a moving insect, a beetle usuallyresponds immediately to changes in the insect's direction, and it pausesequally frequently whether the chase is up or down an incline.

this is consistent with the temporary blindness hypothesis -it responds immediately once it can. it also undermines the fatigue hypothesis,because, if the fatigue hypothesis were true, thebeetle would pause more often going uphill than going downhill.

zombiee

这题还有变体：

B. In pursuing a swerving insect, a beetle alters its course while running [Weakens the hypothesis that the beetle stops intermittently because it cannot process visual information] and it pauses become more frequent as the chase progresses [Strengthens the hypothesis that the beetle stops because it gets tired: as the chase continues and the beetle grows wearier, the stops become more frequent.] Correct.

C. In pursuing a moving insect , a beetle usually responds immediately to changes in the insect's direction,[Weakens the hypothesis that the beetle stops because it cannot process visual information] and it pauses equally frequently whether the chase is up or down the incline. [Weakens the hypothesis that the beetle stops because it gets tired: moving up an incline would make the beetle more tired, yet the stops become no more frequent]. Incorrect because it weakens both hypotheses.

DUKB24

B选项那里。。。。后半部分。。。umm..个人意见，open to discuss
只是说了要停止相同的时间 whether the chase的方向是上或者下，没有点出关键词速度
我觉得是irrelevant...
真正要削弱的话应该是说这个豹子休息的目的并不是maintain its speed

-- by 会员 DUKB24 (2012/5/31 12:27:36)

manhattan说了：

Quote:

In pursuing a moving insect, a beetle usuallyresponds immediately to changes in the insect's direction, and it pausesequally frequently whether the chase is up or down an incline.

this is consistent with the temporary blindness hypothesis -it responds immediately once it can. it also undermines the fatigue hypothesis,because, if the fatigue hypothesis were true, thebeetle would pause more often going uphill than going downhill.

-- by 会员 zombiee (2012/5/31 12:31:44)

你是对的，我错了，没看到有个rest的存在，粗心了