第 1 题 · 四级
What seems odd to me is that he never mentions his family.
核心词：odd ɒd adj. 奇怪的；奇数的
让我觉得奇怪的是他从不提及家人。
一般现在时主语从句 What… + 表语从句短语 seem odd短语 an odd number
What seems ___ to me is that he never mentions his family.
第 2 题 · 四级
Carbon is being released into the air, which warms the planet.
核心词：carbon ˈkɑːbən n. 碳
碳正被释放到空气中，使地球变暖。
现在进行时现在进行被动 + which 定语从句短语 carbon dioxide短语 low carbon
___ is being released into the air, which warms the planet.
第 3 题 · 四级
The book gives extensive information about the history of the city.
核心词：extensive ɪkˈstensɪv adj. 广泛的，大量的
这本书提供了关于这座城市历史的大量信息。
一般现在时extensive + 名词 + about 介词短语短语 extensive information短语 extensive use
The book gives ___ information about the history of the city.
