What do we know about Beethoven's father from the text?

• A、He was a friend of Mozart's.

• B、
  
  He was a gifted musician.

• C、He was unclear about Beethoven's age.

• D、He was Beethoven's first music teacher.

A. But we do not call it art.

B. It may produce feelings of beauty, peace or fear.

C. For the observer, it stimulates feelings and ideas.

D. Art does not require its creators to be full-time specialists.

E. But the basket with bread on the table would probably not be taken as art.

F. But they do not share the value of painting pictures on the outside walls.

Ancient Greece

The Greeks were the greatest (great) sailors of their time. Greece has one excellent （）41_- (nature) feature—the coastline.That's why many Greeks left the mountains and （）42_ (take) to the sea.

The ancient Greeks have（）43_(give) the world many ideas about life and how to live it. The idea of democracy(民主) started in Greece. So did many ideas of science, religion and（）44 _ (govern). But these ideas did not come out of Greece as a whole. Instead, they grew up in（）45_ (differ) cities throughout the Greek Empire.

The cities of Greece grew up in valleys near the sea.Each city was（）46(separate)from the others by mountains. The roads （）47__(connect) the cities were narrow and winding. Each city governed itself in its own way. And the（）48_ (citizen) of each city were very proud of its way of life. In fact, each city was （）49_ (real) an independent state. Such places are called city-states by  （）50_(politics) scientists.