题目内容
5.After the serious illness Ebola happens,more doctors to help save the patients in Africa.( )| A. | needed | B. | are needed | C. | need | D. | are needing |
分析 在严重的埃博拉疾病爆发之后,需要更多的医生去帮助救治非洲的病人.
解答 答案:B
根据after引导的时间状语从句 the serious illness Ebola happens为一般现在时可知主句也用一般现在时,故该空用一般现在时,再根据主语doctors 是谓语动词need 的承受者,二者是被动关系,故用被动语态,所以空处用一般现在时的被动语态,一般现在时的被动语态的构成:am/is/are+及物动词的过去分词.故选B
点评 做关于被动语态的题时,首先判断主语与谓语动词的关系,其次根据时间词或上下文判断时态,然后二者结合套用结构,本题考查的是一般现在时态的被动语态.一定注意其构成形式,其结构为:am/is/are+及物动词的过去分词
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