— useful invention it is.—Yes, It helps us a lot.A.What anB.What aC.HowD.How
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— useful invention it is. —Yes, It helps us a lot.A.What an | B.What a | C.How | D.How a |
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答案
B |
解析
试题分析:感叹句主要有what和how构成: 1、what修饰名词或名词短语,有以下两种形式: 1. What+a(an)+(形容词)+单数可数名词+主语+谓语!或是:What+名词词组+主语+谓语! 2. What+(形容词)+可数名词复数或不可数名词+主语+谓语! 2、How引导的感叹句。 how用来修饰形容词、副词或动词。其结构是:How+形容词(副词)+主语+谓语! 根据下文useful invention it is,可知invention是可数名词单数,useful词首音素是辅音,不定冠词用a,故选B。 点评:当how修饰动词时,动词不跟着感叹词提到主语之前。 what与how引导的感叹句,一般情况下可以相互转换,转换后意义不变。在口语中,感叹句的主语和谓语常常省略。 |
举一反三
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