问题 单项选择题 案例分析题

下图为某地理研究性小组在某地进行地质考察时拍摄的照片,据此回答下列问题。

干旱地区丹霞地貌“圆头圆脑”的形成条件是()

A、物理风化和风沙侵蚀作用强烈

B、光照强烈,对岩石破坏作用大

C、气温日较差大,岩石球状风化显著

D、冰雪融水冲刷地表岩石

答案

参考答案:A

解析:【分析】“圆头圆脑”的形成条件应该是风化和侵蚀作用的共同作用结果。仅有光照,无法拂去岩石表层碎屑,不足以形成“圆头圆脑”;球状风化是花岗岩地貌景观;融水侵蚀会形成切割地貌。故选A。【点评】地质作用与地表形态

单项选择题

Of all the areas of learning the most important is the development of attitudes. Emotional reactions as well as logical thought processes affect the behavior of most people.
"The burnt child fears the fire" is one instance; another is the rise of despots like Hitler. Both examples also point up the fact that attitudes stem from experience. In one case the experience was direct and impressive; in the other it was indirect and cumulative. The Nazis were indoctrinated largely by the speeches they heard and the books they read.
The classroom teacher in the elementary school is in a strategic position to influence attitudes. This is true partly because children acquire attitudes from those adults whose word they respect.
Another reason it is true is that pupils often delve somewhat deeply into a subject in school that has only been touched upon at home or has possibly never occurred to them before. To a child who had previously acquired little knowledge of Mexico, his teacher’s method of handling such a unit would greatly affect his attitude toward Mexicans.
The media through which the teacher can develop wholesome attitudes are innumerable. Social studies (with special reference to races, creeds and nationalities), science matters of health and safety, the very atmosphere of the classroom... these are a few of the fertile fields for the inculcation of proper emotional reactions.
However, when children come to school with undesirable attitudes, it is unwise for the teacher to attempt to change their feelings by cajoling or scolding them. She can achieve the proper effect by helping them obtain constructive experiences.
To illustrate, first grade pupils afraid of policemen will probably alter their attitudes after a classroom chat with the neighborhood officer in which he explains how he protects them. In the same way, a class of older children can develop attitudes through discussion, research, outside reading and all-day trips.
Finally, a teacher must constantly evaluate her own attitudes, because her influence can be deleterious if she has personal prejudices. This is especially true in respect to controversial issues and questions on which children should be encouraged to reach their own decisions as a result of objective analysis of all the facts.

The central idea of the above passage is that ______.

A.attitudes affect our actions

B.teachers are important in developing or changing pupils’ attitudes

C.attitudes can be changed by some classroom experiences

D.by their attitudes, teachers inadvertently affect pupils’ attitudes

单项选择题