Part Ⅳ CLOZE (10%)
By the time I finished high school, my interest in animals had grown, and enrolled at a university to study biology. I learned soon enough that studying animals __56__ this level was not in the animals best ___57. I remember one midterm exam in ___58 each student was handed a large, freshly-killed frog and __59 to dissect (解剖) and mark a set of body parts. I looked at the ___60 frog in front of me and was saddened that her life was ___61 away for such a slight ___62.
A year later, in the same lab __63 I dissected the frog, I performed a small act of animal ___64. We were ___65 on fruit flies, and it was time to record the distribution of characteristics in their next generation. Flies were ___66 in small plastic bottles. Counting the number of flies with white or red eyes required first exposing them to ether(乙醚) ___67 they could not move. The flies were then spread onto a piece of white paper ___68 and counted. When the data collection was ___69, the flies had no further use, and our instructions were to ___70 them into a small glass dish of oil at the center of each desk, which was to be their final resting ___71.
Once may little pile of flies had been counted, I pushed them off the edge of the paper. As we recorded our data, I kept one eye___72 them. Within minutes the pile was humming(嗡嗡叫) as tiny legs and wings beat their way out of the ether fog. I was extremely excited as they ___73 flight. That was my first ___74 in refusing to conduct scientific research that treated nonhuman life in a(n) ___75 way