. The biggest problem for most plants, which ___ just get up and run away when threatened,

. The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them.

A. shan’t B. can’t

C. needn’t      D. mustn’t

答案

B。


解析:

can在此表示能力,can’t表示“不能”。此题所考查的知识点比较简单,但由于句子结构比较复杂,所以许多学生不是由于没有弄清知识点而误选,而是由于不理解句意而误选。全句意为:对于大多数植物来说,它们所面临的最大问题是(有些)动物喜欢以它们为食物,而当它们受到威胁时却不能起身逃跑。

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