题目内容
10.Paper making is a greatinvention(invent) of ancient China.分析 造纸术是中国古代的一个伟大的发明.
解答 答案:invention.
根据 a great--(invent) of,可知中间的单词应该是一个单数名词,所以要用动词invent的名词invention形式,表示发明.故填:invention.
点评 本题考查用所给单词的适当形式填空,首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变化.
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