Re: [語文] PP-T1-CR-24

看板GMAT (GMAT入學考試)作者pinkdejavu (愛人不變朋友實在太難)時間17年前 (2007/10/16 18:22)推噓2(2推 0噓 3→)

留言5則, 2人參與討論串2/4 (看更多)

這題大概是說，虎甲蟲可以抓到任何沒有在飛的動物但當虎甲蟲朝昆蟲(獵物)衝去，它不時會停頓一下，然後再繼續它的攻擊對於這樣的間隔的停頓有兩種假設 1.有人認為虎甲蟲無法持續不停止的進行它的攻擊路線，需要行進間須停頓休息 2.虎甲蟲行進間無法及時的接收處理視覺，暫時會處於看不見的狀態，所以才會有停頓 a.已經離題，他說當虎甲蟲的獵物轉而朝虎甲蟲跑來，虎甲蟲會一反常態的不做停頓跑走 (個人覺得這選項超像笑話的 XD) bc可以一起做討論 b.他說在虎甲蟲進行攻擊的時候，會及時反應獵物上下左右移動、改變方向，並且過程中虎甲蟲所作的停頓是規律的。 c.這個選像是說，儘管面前獵物從靜止到開始移動，虎甲蟲仍按照自己規律的步調停頓但是它會為了去捕捉獵物而加速移動因此C比B更加支持了假設1，虎甲蟲有它自己的停頓步調而作休息，而不是隨獵物而改變另外虎甲蟲也會在停頓後加速去追捕獵物，證明剛剛在他眼前的獵物開始移動這件事情，虎甲蟲是有看到的，因此假設二它無法及時處理眼前快速接收到的視覺這個理論就被削弱了 d跟e就先不打了>"< PS 個人解讀>"< 有錯請大家不吝糾正一下喔!!!! ※ 引述《poco916 (可以溫柔卻有力量)》之銘言： : 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 : 這一題真的很瘋狂，不懂C如何支持其中一個假設，削弱另一個..... : 有沒有人知道呢？ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 60.245.74.203 ※ 編輯: pinkdejavu 來自: 60.245.74.203 (10/16 18:48)