1.(2019·全国卷Ⅰ，61)While they are rare north of 88°， there is evidence ________ they range all the way across the Arctic, and as far south as James Bay in Canada.
答案：that 分析句子结构可知，所填词引导同位语从句，解释说明evidence的具体内容，从句中不缺少成分且意义完整，故用that引导。
2．(2019·江苏高考，25)Scientists have obtained more evidence ________ plastic is finding its way into the human body.
答案：that 句意：科学家已经获得了更多的证据，证明塑料正在进入人体。分析句子结构可知，空格处引导同位语从句，解释说明evidence的具体内容，从句中不缺成分，故用that引导。
3．(2018·全国卷Ⅲ，61)I'm not sure ________ is more frightened, me or the female gorilla (大猩猩) that suddenly appears out of nowhere.
答案：who 分析句子结构可知，宾语从句中缺少句子的主语，由下文“me or the female gorilla (大猩猩)”可知，作者不确定自己和大猩猩谁更害怕，故填who。
4．(2018·北京高考，11)Without his support, we wouldn't be ________ we are now.
答案：where 句意：如果没有他的支持，我们不可能有今天的地位。结合句意可知，应用where引导该表语从句，表示抽象概念。
