题目内容
7.There is no obviousbreakthrough(突破) with cancer at present.分析 目前关于癌症没有明显的突破.
解答 答案:breakthrough.考查单词填空.形容词obvious后面接名词,"突破"用名词breakthrough表示.因为is是单数,所以后面的名词breakthrough也用单数形式.所以答案是breakthrough.
点评 本题考查根据中文意思填写对应的英文单词.首先判断要填写的单词词性,然后根据题干意思决定填写什么单词,最后再根据相关语法对所给单词在形式上做出正确的变动.

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