题目内容
18._____ with the size of the whole universe,even the biggest star we can observe doesn't seem big at all.( )A. | When compared | B. | Compare | C. | While comparing | D. | Comparing |
分析 句意:当和整个宇宙(被)比较时,我们能观察到的最大恒星似乎根本也没那么大.
解答 答案A.分析句子结构可知,逗号之后是主句,之后是非谓语动词形式.主句主语"star"与所给动词"comare"构成逻辑上的被动关系因此应该用过去分词,排除B、C和D项.句中"When compared"是一个省略结构,完整结构为"When the biggest star is compared with the size of the whole universe",在句中作时间状语,因此A项符合语境,故选A.
点评 本题考查现在分词作状语.做这类题目首先根据句意判断是谓语还是非谓语,如果是分词做状语的时候,看动词与逻辑主语构成主动关系,就使用现在分词的形式;如果二者构成被动关系就使用过去分词的形式.不定式表示动作未发生作目的状语.
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