There is no doubt that books have the power to change how people think about the world and the universe around them. These 3 astronomy books have had a significant impact on the way humans think about our place and purpose in the universe:

On the Heavens (about 350 BC) by Aristalle

Aristotle proposed a geocentric (以地球为中心的) model of the universe in the book. This work is significant as a master work of the Aristotelian worldview, a school of philosophy that dominated (支配) intellectual thinking for almost 2000 years．Eventually，almost everything in it was proven incorrect, but On the Heavens, which is still in print, provides a fascinating view of astronomical evolution.

The Revolutions of Heavenly Spheres (1543) by Nicolaus Copernicus

In this book, Copernicus argued that the Sun rather than the Earth lies in the center of the universe. The Earth moves as a planet around the Sun. The most important advantage offered by Copernicus was a vision of the universe as an integrated system, where all the planets move together in elegant harmony.

The Mechanism of the Heavens (1831) by Mary Somerville

Different from his book Physical Geography, this book was embraced as an important contribution to the understanding of celestial motion (天体运动). It became extremely valuable to both astronomers and students and it was used as a textbook for more than half a century. The book went through many revisions, keeping pace with astronomical developments over time. It proves that given the opportunity, women could match the men in science step for step.

【小题1】What can we learn about the book On the Heavens?

A．It is banned from printing.

B．It mainly focuses on philosophy.

C．It is used by many schools today.

D．It has proven almost completely wrong.

【小题2】What do On the Heavens and The Revolutions of Heavenly Spheres have in common?

A．They revealed the truth of the universe.

B．They are master works of the same era.

C．They explored the center of the universe.

D．They regard the universe as an integrated system.

【小题3】Which book brings more motivation to women in science?

A．On the Heavens.

B．Physical Geography.

C．The Mechanism of the Heavens.

D．The Revolutions of Heavenly Spheres.