36.C
Less than a tenth of the people are engaged in agriculture and forestry ( 林业 )
37.A
Half the population now lives in some thirty metropolitan areas (large cities with their suburbs) of more than a million people each-a larger proportion than in Germany or England,let alone France.
38.A
metropolitan areas (large cities with their suburbs)
39.A
40.B
As the rush to live out of town continues,rural areas within reach of towns are gradually filled with houses,so that it is hard to say at what moment a piece of country becomes a suburb.