Question

The fact has worried many scientists ________the earth is becoming warmer and warmer these years.

A．what

B．which

C．that

D．whose

Answer 1

C

解析试题分析：句意：这些年地球变得越来越暖这个事实困扰着许多科学家们。这里是同位语从句，先行词是fact，同位语从句中不缺少成分，that在从句中不做成分，故选C。
考点：考查连词的用法。
点评：本题难度适中。连词是近几年高考常考的语法项目，主要考查的是它们的用法及意义，还需正确理解句意及正确分析句子的成分才能做出正确的判断。
即学即练：It is difficult to fill the minds of kids with the idea_______they must love study.
A. which        B. what      C. whether       D. that
解析：D。that引导同位语从句，解释idea的具体内容。