语法与词汇

The fact that space exploration has increased dramatically in the past thirty years ________.

A、 is an evidence of us wanting to know more of our solar system
B、 indicates that we are very eager to learn all we can about our solar system
C、 how we want to learn more about the solar system
D、 is pointing to evidence of our intention to know a lot more about what is called our solar system

【正确答案】 B

【答案解析】

句意：太空探索在过去三十年里急剧增加，这表明我们非常渴望学习有关太阳系的一切知识。主语为the fact，谓语动词为第三人称单数，前后句意只能表示推测，不能表示肯定，因此答案选B。