一个定语从句选择题,出自某高校MTI入学考试基础英语.详见下:
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一个定语从句选择题,出自某高校MTI入学考试基础英语.详见下:
As __ announced in today's newspapers,the Shanghai Export Commodities Fair is also open on Sundays.
句义:正如今天报纸上报道的,上海商品出口展览中心周日也开放.
选项:being,is,been
参考答案给的是is.请问哪位能告诉我为什么不能选been?
As __ announced in today's newspapers,the Shanghai Export Commodities Fair is also open on Sundays.
句义:正如今天报纸上报道的,上海商品出口展览中心周日也开放.
选项:being,is,been
参考答案给的是is.请问哪位能告诉我为什么不能选been?
分析:
此句是一个非限制性定语从句,以关系代词as进行引导.
关系代词as在从句中作主语,指代的是后面主句的内容.is announced 是从句的谓语,其中的is是助动词be的现在式与过去分词announced一起构成被动语态,表示被报道.
可还原变形如下进行理
【The news】(that the Shanghai Export Commodities Fair is also open on Sundays)is announced in today‘s newspaper.
being announced 是announce的现在分词(或动名词的)一般被动式,属于非谓语动词形式.been announced,是不完整的非谓语动词形式,完整的非谓语动词形式有to have been announced(不定式之完成被动式),having been announced(现在分词或动名词之完成被动式)
此句中并不能使用非谓语动词形式,因为作为主语的是后面整句话的内容,需要一个实义动词.
此句是一个非限制性定语从句,以关系代词as进行引导.
关系代词as在从句中作主语,指代的是后面主句的内容.is announced 是从句的谓语,其中的is是助动词be的现在式与过去分词announced一起构成被动语态,表示被报道.
可还原变形如下进行理
【The news】(that the Shanghai Export Commodities Fair is also open on Sundays)is announced in today‘s newspaper.
being announced 是announce的现在分词(或动名词的)一般被动式,属于非谓语动词形式.been announced,是不完整的非谓语动词形式,完整的非谓语动词形式有to have been announced(不定式之完成被动式),having been announced(现在分词或动名词之完成被动式)
此句中并不能使用非谓语动词形式,因为作为主语的是后面整句话的内容,需要一个实义动词.