There is another planet，Eris，floating in space.But the small planet similar to Pluto will remain safely fixed in the outer solar system and it can come no closer than four billion miles to the Earth，according to NASA.

　　Initial theories set the disaster for May 2003，but when nothing happened the date was moved forward to the winter in 2017 to coincide with the end of a cycle of the ancient Mayan calendar.

　　NASA insisted the Mayan calendar in fact does not end on December 21,2017，as another period begins immediately afterward.

　　And even if the planets were to line up as some have forecast，the effect on our planet would be “negligible”，NASA said.

　　“And while comets and asteroids(小行星)have always hit the Earth，big hits are very rare，”NASA noted.The last major impact was believed to be 65 million years ago，resulting in the end of dinosaurs.

　　“We have already determined that there are no threatening asteroids as large as the one that killed the dinosaurs，”the space agency said.

　　【解题导语】 2017世界末日真的会到来吗？美国宇航局对电影《2017》进行了批驳。

　　48．________played a key role in the spread of the rumors.

　　A．A new book

　　B．The Internet and a new Hollywood movie

　　C．NASA

　　D．An Indian calendar

【2017届高考英语（重庆专用）二轮精练：必修5 unit3 Life in the future单元测试】相关文章：

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 1 Great scientists

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修3 Unit 2 Healthy eating

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修4 Unit 2 Working the land

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修5 unit4《Making the news》

★ 【浙江专用】2014届高考英语一轮复习课时作业(三十三)选修7Unit 3《Under the sea》

★ 【三维设计】2017届高考英语（江苏专用）二轮复习阅读理解解题技法示范课件：9

★ 【三维设计】2017届高考英语（江苏专用）二轮复习课件：必修2 Unit 3《Amazing people》

★ 【人教版】2014届高考英语一轮复习指导考点针对练：必修4 unit2《Working the land》

★ 【三维设计】2017版（江苏专用）二轮复习练习：必修3 Unit 2《Language》课时跟踪检测A卷（含解析）

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 5 First aid