题目

Life in 21st century（世纪） will be different from the life in the 20th century , because many changes will take place in the century, but what will the change be?     The population(人口) is growing fast. There will be more and more people in the world and most of them will live longer than before .Computers will be much smaller and useful, and there will be at least(至少) one in every family. And computer studies will be one of the most important subjects in school.     People will work fewer hours than they did in 20th century. They will have more free time for sport6．读图甲“我国地形剖面图”和图乙“地形分布图”完成下列问题．（1）从图中可以看出我国地势西高东低，呈三级阶梯状分布的特点，甲图中的四川盆地在乙图中对应的字母代号是D．（2）乙图中的K山脉的东侧是东北平原，西侧是内蒙古高原，P处是我国三个平原的华北平原，它的西侧F山脉是太行山脉．（3）图乙中，代表第一级阶梯的字母代号是C，该阶梯上主要的地形单元是青藏高原，面积最大的盆地对应的字母代号是A．（4）图乙中的H地区是我国四大高原的云贵高原，该地区的气候为亚热带季风气候．