The colors and patterns on butterflies’ wings may seem merely (i)______but they

游客2024-01-10  23

问题 The colors and patterns on butterflies’ wings may seem merely (i)______but they are actually (ii)______the survival of these insects , enabling them to attract mates and to hide from predators.

选项

答案 C,E

解析 but说明前后反义重复;逗号说明前后同义重复。两空联动,反义重复;第二空与enabling them to attract mates and to hide from predators(帮助它们吸引异性并躲避捕食者)同义重复。根据句意,第一空说蝴蝶翅膀上的颜色和图案“不重要”,第二空说“重要”。artificial人工的,unique独一无二的,decorative装饰性的;result of……的结果,instrumental in作为重要工具的,precursor of……的先驱。答案选CE.
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