问题 综合

材料三  1978年,黑龙江省农民人均纯收入比山东省高2/3,这种差距是多年来吸引千百万山东人“闯关东”的基本原因。可到了1985年,山东农村经济大发展,超过了黑龙江,出现了“雁南飞”的局面,由此导致人口迁移方向在两者之间完全相反。

材料四 我国对外开放格局的时空发展

(3)根据材料三分析人口迁移方向变化的原因。(12分)

(4)结合材料四分析1985年以来山东农民纯收入大大超过黑龙江农民的原因。(8分)

答案

(3)经济因素。经济因素是经常起作用的,经济越发展,地区间的人口迁移受经济影响越明显;经济布局的改变也会影响人口迁移。(12分)

(4)山东地处东部沿海地带,区位优势多(交通便利,海洋资源丰富,光热资源充足等);在党的改革开放政策下首先得益;农村生产力得到极大发展,农村经济水平提高快。(8分)

单项选择题

More and more people like bicycling and it is no surprise. It is fun, healthy and good for the environment. Maybe that’s why there are 1.4 billion bicycles and only 400 million cars on roads worldwide today. Bikes can take you almost anywhere, and there is no oil cost!

Get on a bicycle and ride around your neighbourhooD. You may discover something new all around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You can bike to work and benefit (受益) from the enjoyable exercise without polluting the environment. You don’t even have to ride all the way.

Folding (折叠) bikes work well for people who ride the train. Just fold the bike and take it with you. You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take a common bike with you when you fly. But be sure to look for information by getting on airline websites. Not all airlines are bicycle-friendly to travelers.

Health Benefits of Bicycling.

·It helps to prevent heart diseases.

·Bicycling helps to control your weight.

·A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a year.

·Bicycling can improve your mood (心情).

·Exercise like bicycling has been shown to make people feel better, more relaxed and self-confident.

·Bicycling is healthier than driving.

One of the benefits from bicycling is that()。

A. you can fold the bicycle

B. you will be friendly to others

C. you will be more relaxed

D. you may get fatter and fatter

单项选择题