1.(2019·全国Ⅰ卷)It is difficult to figure out a global population of polar bears as much of the range has been (poor) studied;
【答案】 poorly
【解析】 考查形容词副词的相互转化。空格处的词应该修饰后面的动词studied,故用副词poorly。句意：很难计算出全球北极熊的数量，因为已经对北极熊的分布范围进行的研究还不够；
2.(2019·全国II卷)Her years of hard work have been （提名）her to be Chelshire’s Woman Of The Year.(final)acknowledged after a customer nominated
【答案】 finally
【解析】 考查形容词副词的相互转化。空格处的词应该修饰后面的动词acknowledged,故用副词finally。句意：在一位顾客提名她(提名)为切尔什尔年度最佳女性后，她多年的辛勤工作(最终)得到了认可。
3.(2019·全国III卷)They also shared with us many traditional stories about Hawaii that were (huge) popular with visitors.
【答案】 hugely
【解析】 考查形容词副词的相互转化。空格后的popular 是形容词，应该被副词修饰，故填hugely。句意：他们还与我们分享了许多关于夏威夷的传统故事，这些故事在游客中很受欢迎。
