Narwhals can be called whales of the ice: in icy channels, ponds, and ice-shielded bays they seek sanctuary from killer whales, their chief predator, and their annual migrations following the seasonal rhythm of advancing and retreating ice.


their annual migrations following

their annual migrations which follow

their annual migrations follow

whose annual migrations following

whose annual migrations follow

考题讲解

题目分析:
在(A)(B)中,具有and关系的两者是killer whales和their annual migrations;在(C)中,具有and关系的是they seek sanctuary from killer whales和their annual migrations follow the seasonal rhythm of advancing and retreating ice两个小句;在(D)(E)中,并列连词and身后是定语从句whose annual migrations the seasonal rhythm of advancing and retreating ice,在and身前没有同这个定语从句平行的定语。因此可以直接排除这两个选项。本题在语意上想描述的是Narwhals的两个特点,即,“防止被鲸鱼吃”和“迁徙随着冰的变化而变化”,所以具有and的关系的两者肯定是they seek sanctuary from killer whales和their annual migrations follow the seasonal rhythm of advancing and retreating ice两个小句,可以排除(A)(B),答案为(C)。

选项分析:


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Prep2012-SC

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