Virtually all plant and animal species on Earth can be found in tropical rainforests. Stranglers are so called because they____

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问题 Virtually all plant and animal species on Earth can be found in tropical rainforests.
Stranglers are so called because they______ by blocking the sunlight and competing for the nutrients.

选项

答案kill the host tree

解析 由题干中的blocking the sunlight和competing for the nutrients定位到第三个小标题下首段末句Eventually,the strangler may block so much light from above,and absorb such a high percentage of nutrients from the ground below,that the host tree dies.此处需要补全原因状语从句。题干中的blocking the sunlight and competing for the nutrients与原文中的 block so much light from above,and absorb such a high percentage of nutrients属同义转述;原文that引导的结果状语从句指出由于附生植物阻断阳光、争夺养分,最终寄主树会死去。故绞杀植物得到这种名号是因为它们kill the host tree。
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