题目内容

15．"It seems as if there've been a lot of strong earthquakes this year．And no，it's not a signal _____ the planet is coming apart at the seams（缝隙）．"Scientists say．（　　）
A．whetherB．thatC．whatD．which

分析 科学家说："今年似乎发生了很多强烈的地震．不过这不是星球从缝隙来的信号．"

解答 答案：B．
此题it指代前面今年似乎发生了很多强烈的地震，根据 the planet is coming apart at the seams（缝隙）．"可知整句是对前面 a signal 内容的补充说明，是同位语从句，不缺成分，排除C，D，whether 是否，排除A，故选B．

点评 本题考查同位语从句，在熟知同位语从句连接词，充分分析句型及句意的基础上便能选出正确答案．

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