第 1 题 · 高考
Teenage students often have many ideas, which are fresh and interesting.
核心词：teenage ˈtiːneɪdʒ adj. 十几岁的，青少年的
青少年学生常常有许多想法，这些想法新鲜有趣。
一般现在时which 定语从句短语 teenage students短语 in one's teenage years
___ students often have many ideas, which are fresh and interesting.
第 2 题 · 高考
The reliability of the machine is very high, because it rarely breaks down.
核心词：reliability rɪˌlaɪəˈbɪləti n. 可靠性
这台机器的可靠性很高，因为它很少出故障。
一般现在时原因状语从句短语 the reliability of短语 break down
The ___ of the machine is very high, because it rarely breaks down.
第 3 题 · 高考
Racism is a serious problem, because it hurts people and divides society.
核心词：racism ˈreɪsɪzəm n. 种族主义
种族主义是个严重问题，因为它伤害人们并分裂社会。
一般现在时原因状语从句短语 racism短语 fight against racism
___ is a serious problem, because it hurts people and divides society.
