问题 选择题

下列有关生物丰富度的说法正确的是[ ]

A.丰富度是指单位面积或空间内生物个体数目的多少

B.越靠近热带地区,生物的丰富度一定越高

C.一般来说,某个区域生物丰富度越高,该区域的生态系统抵抗力稳定性越高

D.在探究土壤中小动物丰富度的过程中,要对取样土壤中的各种生物个体逐个计数

答案

答案:C

判断题
单项选择题

Thomas Hardy’s impulses as a writer, all of which indulged in his novels, were numerous and divergent, and they did not always work together in harmony. Hardy was to some degree interested in exploring his characters’ psychologies, though impelled less by curiosity than by sympathy. Occasionally he felt the impulse to comedy (in all its detached coldness) as well as the impulse to farce, but he was more often inclined to see tragedy and record it. He was also inclined to literary realism in the several senses of that phrase; He wanted to describe ordinary human beings. He wanted to speculate on their dilemmas rationally (and, unfortunately even schematically); and he wanted to record precisely the material universe. Finally, he wanted to be more than a realist. He wanted to transcend what he considered to be the banality of solely recording things exactly and to express as well his awareness of the occult and the strange.

In his novels these various impulses were sacrificed to each other inevitably and often inevitably, because Hardy did not care in the way that novelists such as Flaubert or James learned, and therefore took paths of least resistance. Thus one impulse often surrendered to a fresher one and, unfortunately, instead of exacting a compromise, simply disappeared. A desire to throw over reality a light that never was might give way abruptly to the desire on the part of what we might consider a novelist scientist to record exactly and concretely the structure and texture of a flower.

In this instance, the new impulse was at least an energetic one. And thus its indulgence did not result in a relaxed style. But on other occasions Hardy abandoned a perilous risky and highly energizing impulse in favor of what was for him the fatally relaxing impulse to classify and schematize abstractly. When a relaxing impulse was indulged, the style--that sure index of an author’s literary worth--was certain to become verbose.

Hardy’s weakness derived from his apparent inability to control the comings and goings of these divergent impulses and from his unwillingness to cultivate and sustain the energetic and risky ones. He submitted of first one and then another, and the spirit blew where it listed; hence the unevenness of any one of his novels. His most controlled novel, Under the Greenwood Tree, prominently exhibits two different but reconcilable impulses--a desire to be a realist-historian and a desire to be a psychologist of love but the slight interlockings of plot are not enough to bind the two completely together. Thus even this book splits into two distinct parts.

Which of the following is the most appropriate title for the passage, based on its content()

A.Hardy’s Novelistic Style: A Literary Light

B. Hardy’s Creative Conflict: Rationalism and Realism

C. Hardy’s Achievements: An Ambiguous Triumph

D. Hardy’s Novelistic Impulses: The Problem of Conflicts