第 1 题 · 高考
The weather in the desert is harsh, because it is too hot in the day and too cold at night.
核心词：harsh hɑːʃ adj. 严酷的，恶劣的
沙漠里的天气很严酷，因为白天太热夜里太冷。
一般现在时原因状语从句短语 harsh weather短语 a harsh punishment
The weather in the desert is ___, because it is too hot in the day and too cold at night.
第 2 题 · 高考
They met in a virtual world, where people can talk without showing their faces.
核心词：virtual ˈvɜːtʃuəl adj. 虚拟的
他们在虚拟世界里相遇，那里人们可以不用露脸交谈。
一般过去时where 定语从句 + without doing短语 a virtual world短语 virtual reality
They met in a ___ world, where people can talk without showing their faces.
第 3 题 · 高考
There was a long pause before he answered, because he needed time to think.
核心词：pause pɔːz n. 停顿，暂停
他回答前停顿了很久，因为他需要时间思考。
一般过去时there be + 原因状语从句短语 a long pause短语 without a pause
There was a long ___ before he answered, because he needed time to think.
