Other experiments have since managed to conquer light’s supposed speed limit, though all claims have had fine print that keeps them from being especially groundbreaking(创新的). Those seeking to truly prove Einstein wrong must instead turn to objects like black holes, which could theoretically cause things to move at faster-than-light speeds. Black holes have been proven to be particularly uncooperative test subjects though, and for now this remains a guess.

　　12. What did the scientists think before 1998?

　　A. The universe would expand more slowly.

　　B. Empty space was full of dark energy.

　　C. The universe would expand faster.

　　D. There was nothing in the space.

　　13. Which of the following is TRUE according to the passage?

　　A. Three fourths of the universe is made up of dark energy.

　　B. Dark energy has a positive pressure because of its surroundings.

　　C. We have changed our understanding of the universe.

　　D. Dark energy has been discovered.

　　14. From the fourth paragraph, we know that the scientists found ______ .

　　A. a vapour

　　B. a vacuum.

　　C. something traveling faster than light.

　　D. a small pulse of laser light.

　　15. What can be inferred from the passage?

　　A. The pulse traveled exactly 300 times faster than light.

【2017届河北省高三英语一轮复习55分钟课堂练习35 Word版含答案】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (56)

★ 2017届高考英语二轮复习大题冲关秘籍短文改错：名校模拟（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 2 A卷 Word版含解析

★ 2017高考四川省广安市英语阅读理解一轮系列训练：30（含解析）

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修5 unit2《The United Kingdom》

★ 备战2016年高考英语第一轮复习的七大方法

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修3 unit3《The Million Pound Bank Note》

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文：解题技巧（含解析）

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：5（含解析）

★ 四川省2016届高考英语一轮复习课时作业（31） Module1 Small Talk 外研版选修6