1.(2019浙江杭州模拟,56)Memories of past events provide us with a wide range of thoughts and emotions. Childhood memories often open 　　     window to laugh and cry.

题组三　冠词

答案　a　考查不定冠词。句意:往事的记忆为我们提供了广泛的思想和情感。童年的记忆经常会打开一扇哭和笑的窗户。这里泛指“一扇窗户”,且window以辅音音素开头,所以填不定冠词a。

2.(2019浙江杭高分校模拟,59) This was 　　    first time anyone had walked on the surface of another world.

答案　the　考查定冠词。句意:这是人类第一次踏上另一个世界的表面。所填单词后面有序数词first, 表示第一次,所以,应该用定冠词。