题目内容
19.This is 3-D printer.And this is an artificial (人工的) ear.Can you believe that scientists printed this artificial ear by this 3-D printer?( )| A. | a | B. | an | C. | the | D. | / |
分析 这是一台3D打印机.这是一只人工耳朵.你能相信科学家们用这台3D打印机打印了这只人工耳朵吗?
解答 答案:A
此题考查冠词的用法. 结合语境,根据This is 3-D printer可知本句中指的是任何一台3D打印机,表泛指,故用不定冠词a或an,three词首音素是辅音,故用不定冠词a.故选A.
点评 做题时结合语境确定出冠词的种类;规则是表泛指时用不定冠词a或an;表特指时用the.需注意的是不定冠词的用法是看词首音素,不是看首字母,这点尤其要注意.
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