问题 选择题

2011年5月1日北京迎来最大范围沙尘天气,伴随5-6级大风。据此完成题。

小题1:形成沙尘暴的天气系统是

A.低气压

B.台风

C.暖锋

D.冷锋小题2:加剧沙尘暴天气的主要人为原因是

A.围湖造田

B.破坏植被

C.露天开矿

D.修筑大坝小题3:减轻北京地区沙尘天气的主要措施是

A.北京西北部封山育林

B.加强“三北”生态建设

C.黄河中上游植树造林

D.西北地区退耕还湖

答案

小题1:D

小题2:B

小题3:B

题目分析:

小题1:沙尘暴是冷锋影响的灾害性天气。

小题2:影响北京的沙尘暴主要来源于我国西北地区的荒漠化,过度放牧、过度开垦和过度樵采等植被的破坏是导致西北地区荒漠化的主要人为原因,即也是加剧荒漠化的主要原因。

小题3:结合上题分析,对北京的沙尘天气的治理主要在于对西北地区荒漠化的防治,故“三北”防护林建设是减轻北京沙尘天气的主要措施。

点评:本题难度一般,学生主要掌握影响我国北方沙尘暴的主要原因,并能结合其人为原因判断减轻荒漠化的主要措施。

单项选择题

Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of unfortunate circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom what would civilization be like without its benefits

So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow-citizens. If our educational system were fashioned after its bookless past we would have the most democratic form of "college" imaginable. Among the people whom we like to call savages all knowledge inherited by tradition is shared by all; it is taught to every member of the tribe so that in this respect everybody is equally equipped for life.

It is the ideal condition of the "equal start" which only our most progressive forms of modern education try to reach again. In primitive cultures the obligation to seek and to receive the traditional instruction is binding on all. There are no "illiterates"--if the term can be applied to peoples without a script--while our own compulsory school attendance became law in Germany in 1642, in France in 1806, and in England in 1976, and is still non-existent in a number of "civilized" nations. This shows how long it was before we considered it necessary to make sure that all our children could share in the knowledge accumulated by the "happy few" during the past centuries. Education in the wilderness is not a matter of monetary means. All are entitled to an equal start. There is none of the hurry that, in our society, often hampers the fui1 development of a growing personality. There, a child grows up under the ever-present attention of his parents; therefore the jungles and the savages know of no "juvenile delinquency". No necessity of making a living away from home results in neglect of children, and no father is confronted with his inability to ’"buy" an education for his child.

According to the text, which of the following statements is true()

A. One without education today has few opportunities

B. We have not yet decided on our educational models

C. Compulsory schooling is legal obligation in several countries now

D. Our spiritual outlook is better now than before

选择题