问题详情

People produce food in many ways.Agriculture，or farming，developed thousandsof years ago. ___11___about 100 years ago, most farmers in the United StatesProduced only enough food for their own___12___Today,modern equipment andfarming methods have greatly ___13___the American farmer’s productivity.

In various parts of the world,people___14___many animals that supply meat andmilk. Cattle, horses, goats, sheep, and pigs are important food animals. In theUnited States, the cow is the major source of milk products. Chickens___15___people with both meat and eggs.

Fishing is an important source of food, ___16___in areas near the sea. Somecountries, like Japan, consume much more fish than meat.

The wealthy areas of the world consume the most food , ___17___include theUnited States, Canada, and Europe. Many countries are able to import food if itcannot be produced at home. ___18___Great Britain imports about 75percent of itsmeat，and grows less than half the food its people require.

___19___people of the poor countries of the world usually eat only what theyare able to produce themselves. In some parts of Asia, people live ___20___ricealone.

11.A.In B.Until C.From D.for

12.A.needs B.reasons C.efforts D.interests

13.A.protected B.supported C.increased D.reflected

14.A.grow B.raise C.train D.store

15.A.prepare B.treat C.serve D.provide

16.A.certainly B.actually C.occasionally D.especially

17.A.these B.where C.which D.they

18.A.In addition B.For example C.Above all D.After all

19.A.However B.Therefore C.Moreover D.instead

20.A.with B.for C.on D.through