第18题: [单项选择]According to the passage, one thing eusocial insects can do is rapidly switch from A. (one type of food consumption to another B. (one environment to another C. (a solitary task to a group task D. (a defensive to an offensive stance 参考答案:C
第19题: [填空题]Life is too short __________________________ (不可每天将时间浪费在看电视上). 参考答案:to idle away the hours watching TV each day 答案解析:由给出的中英文可知,该句包含too...to... 的结构,表示“太……而不能……”,直接包含否定概念,因此所译部分尤须含有否定词。“将时间浪费在……上”可译为idle away some time