問題詳情

第 41 至 50 題為題組Do you have trouble 41 in the morning? If you do, you are not alone.Cockroaches have the same problem !They learn better at night than they do in themorning. 42 when cockroaches learn best, researchers at Vanderbilt Universitytested the insects for which odor (peppermint or vanilla) they liked. Most cockroachespreferred the smell of vanilla to 43 of peppermint at all times. They were alsofound to 44 sugar water over salt water.Therefore, the scientists trained the cockroaches to prefer the peppermint smell by45 the insects with a taste of sugar water when they approached a peppermintsmell. When these insects moved toward a vanilla smell, 46 , they were punishedwith a taste of salt. When the cockroaches were trained at night, they remembered thenew 47 (peppermint = sugar water; vanilla = salt water) for up to 48 hours.However, if the cockroaches were trained in the morning, they quickly forgot whichsmell went with which water. This result is a clear 48 that the time when theywere trained decided the effect of their learning.So, cockroaches learn better at night than they do in the morning. They are oftenmore active and 49 search for food during the night. Because of this, it is likelythat information they gather at night will be more useful to them. These experimentsprovide some clues about the interactions between body rhythms, learning and 50 .
41.
(A) getting started
(B) to get started
(C) to start
(D) get starting

參考答案

答案：A
難度：非常困難0
統計：A(0),B(0),C(1),D(0),E(0)

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