The olive（橄榄）tree probably first grew in southern Asia．And then it spread to Mediterranean（地中海的）countries about 6，000 years ago．Since then，it has been important in Mediterranean people's lives．

The olive tree grows in rocky places and it doesn't need much water．Its fruit can be made into olive oil．People have used olive oil to cook dishes for centuries．But they haven't only used it for cooking．Some ancient cultures believed that it was useful as medicine．In modern times，people still use olive oil both for its taste and its health advantages．

Olive oil has also been an important product in the business and culture of Mediterranean countries．In ancient Greece，for example，anyone who cut down an olive tree was heavily punished．Winners at the Olympic Games wore wreaths（花环）．They were made of olive branches（树枝）．Sometimes winners were also giben a prize of olive oil．People from Greece built ships so that they could use olive oil for trade．But it was the Romans who grew the olive tree in the rest of southern Europe and northern Africa．

Today，olive oil is still a very valuable product，and many different kinds of olive oil are sold in countries all over the world．

79．Wherr did the olive tree probably first grow？ 　　

A．	In Asia
B．	In Africa
C．	In Europe
D．	In America

80．What can we learn about olive oil？ 　　

A．	People started to cook with it recently．
B．	It is made from olive branches．
C．	People used it to build ships in Greece．
D．	It can be good for health．

81．In ancient Greece，people who cut down an olive tree 　　．

A．	wore wreaths
B．	were heavily punished
C．	got a prize of olive oil
D．	were regraded as heroes

82．The passage is mainly about 　　．

A．	the method of cooking
B．	the trade of Greece
C．	the history of the Olympic Games
D．	the story of olive oil．