题目内容
13.The sunspot came into its active stage,____ that happens once every eleven years.( )A. | one | B. | it | C. | the one | D. | what |
分析 太阳黑子进入了活跃期,活跃期每11年发生一次.
解答 答案:A.根据前句句中"its active stage活跃期",而从句中说"happens once every eleven years"的主语也是the active stage,故选用one作同位语,代指前面的sunspot's active stage,引导同位语从句.
点评 本题考查同位语从句中的指示代词的用法.学生应多比较各类从句中的指示代词的区别.
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