1.（2019?全国卷I）In recent years some Inuit people in Nunayut have reported increases in bear sightings around human settlements, leading to a ______ (believe) that populations are increasing.
【答案】belief
【解析】考查名词。根据其前不定冠词和其后的同位语从句可知，空格处为名词形式，故填belief。
2. （2019?全国卷III)When they were free from work，they invited us to local events and let us know of an interesting ，together with the story behind it. (compete)to watch
【答案】competition
【解析】考查名词。由空格前的不定冠词an与空格后的不定式to watch可以确定空格处应该填名词形式。故填competition。
3.（2019?浙江卷)Other American studies showed no ______(connect) between uniforms and school performance.
【答案】connection/connections
【解析】考查名词。句意：其他的美国研究表明校服和学校表现之间没有联系。no是形容词，形容词修饰名词，位于名词前，名词可用复数也可用单数形式。connect是动词，“联系”的意思，因此，要用其名词形式。故填connection/connections。
