The scientists have made avaluable discovery recently．题目和参考答案——青夏教育精英家教网——

题目内容

9．The scientists have made avaluable （有价值的）discovery recently．

分析科学家们最近做出一项很有价值的发现．

解答答案：valuable
分析句子结构，所填词汇在句中作定语，修饰discovery，结合汉语提示，形容词valuable符合要求，故答案为valuable．

点评根据汉语填入词汇时，需要分析句子结构，保证所填入的词的形式符合英语语法规则．

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