题目内容
18.Every year,more than 70,000,000 sharks ______ for their fins(鱼翅).( )A. | were killed | B. | have killed | C. | are killed | D. | will kill |
分析 每年,超过70000000条鲨鱼因为它们的鱼翅被杀
解答 答案是:C 通过对句子的sharks作主语,与动词kill之间是被动关系,只能用被动语态--"鲨鱼被杀".Every year是一般现在时态,被动语态的结构是be+过去分词,故选C
点评 此题重点是要分析出使用被动语态,时态是一般现在时态,答案就迎刃而解了,当然还要注意被动语态的结构.
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