问题 综合

读图,完成下列问题。 9分

图3-8

(1)此河是以__________________为主要补给的河流。径流量主要随____________________的变化而变化。

(2)这条河流的丰水期出现在____________________季,原因是____________________;此河的枯水期出现在____________________季,原因是____________________。

(3)此类河流在我国多分布在______________地区,而我国大多数河流主要靠______________补给。

(4)该河在1、2月份有断流现象,其原因是____________________。

答案

(1)冰雪(川)融水    气温   (2)夏季  气温高,融雪量大;冬季,  气温低,融雪量小

(3)西部地区 降水补给  (4)冬季,河流流量小,且气温低,融雪量少。

本题主要考查河流水的补给。(1)如图所示的河流流量主要受温度的影响,且冬季河流断流,这是冰雪融水补给的典型特征。(2)以冰雪融水补给的河流流量主要受气温影响,夏季气温最高时,融雪量的,则河流流量最大。而冬季,气温最低时,融雪量少,则河流断流。(3)以冰雪融水为补给的河流主要分布于我国西部地区。我国大部分地区位于季风区,则以降水补给为主。(4)这类河流一般分布在干旱、半半旱地区,河流流量小,且冬季为枯水期,气温低,融雪量少,则冬季断流。

单项选择题
单项选择题

Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.
In the first form, known as primary cooperation, group and individual unite. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.
While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modem societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.
In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.

Which of the following is an example of the third form of cooperation as it is defined in Paragraph 4

A.Students form a study group so that all of them can improve their grades.

B.A new business attempts to take customers away from an established company.

C.Two rival political parties temporarily work together to defeat a third party.

D.Members of a farming community share work and the food that they grow.