题目

A friend of ours was walking down a deserted Mexican beach at sunset．As he walked along, he began to see another man in the distance．As he drew   1 , he, who had been feeling so tired of teaching those naughty children at school, suddenly   2   the local native kept   3 down, picking something up and throwing it out into the water．Time and again he kept hurling （猛投） things out into the ocean． As our friend   4   even closer, he found that the man was picking up starfish that had been washed up on the beach and, one   5  , he was   6   them back into the water图图表示除南极洲外的六大洲人口占世界总人口比重，读图回答问题。 1.从1970年到2006年人口总量增长最多的大洲是（   ） A.a       B.b       C.c      D.d 2.C大洲的人口问题主要表现在（   ） A.人口增长过快，人均资源不足 B.人口素质低，缺乏环保意识 C.人口老龄化，劳动力不足 D.女性比例小，人口生育率低