今天更过分了,睡到11点半才起……和老公讨论25题讨论了半个多小时还是谁也无法说服谁……题目贴在这里,请看到的人发表意见,头脑风暴,我也把我的想法贴在这里,如果有人正好知道我的错法请不吝赐教哈!
Tiger beetles are such fast runners that they can capture virtually any nonflying insect. However, when running toward an insect, a tiger beetle will intermittently stop and then, a moment later, resume its attack. Perhaps the beetles 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 adequately 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 stops and runs away without its usual intermittent stopping.
B. In pursuing a swerving insect, a beetle alters its course while running and its pauses become more frequent as the chase progress.
C. In pursuing a moving insect, a beetle usually responds immediately to changes in the insect's direction, and it pauses equally frequently whether the chase is up or down an incline.
D. If, when a beetle pauses, it has not gained on the insect it is pursuing, the beetle generally ends its pursuit.
E. The faster a beetle pursues an insect fleeing directly away from it, the more frequently the beetle stops。
正确答案B
我的想法:B正确,但理解和OG解释完全相反……我认为 a beetle alters its course while running说明beetle不需要停下来调整vision再改变course,weaken关于visual的说法; and its pauses become more frequent as the chase progress说明after chasing and running around for a while, it got tired so needed more frequent pauses to catch up its breath.
-- by 会员 2017 (2011/3/20 1:37:49)
我脚着也是这个意思吧,答案说法不同吗?