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1、GRE阅读(No. 2No. 9)No. 2-1SECTION AExtended debate concerning the exact point of origin of individual folktales told by Afro-American slaves has unfortunately taken precedence over analysis of the tales meaning and function. Cultural continuities with Africa were not dependent on importation and perpe
2、tuation of specific folktales in their pristine form. It is in the place that tales occupied in the lives of the slaves and in the meaning slaves derived from them that the clearest resemblances to African tradition can be found. Afro-American slaves did not borrow tales indiscriminately from the Wh
3、ites among whom they lived. Black people were most influenced by those Euro-American tales whose functional meaning and aesthetic appeal had the greatest similarity to the tales with deep roots in their ancestral homeland. Regardless of where slave tales came from, the essential point is that, with
4、respect to language, delivery, details of characterization, and plot, slaves quickly made them their own.17.The author claims that most studies of folktales told by Afro-American slaves are inadequate because the studies(A) fail to recognize any possible Euro-American influence on the folktales(B) d
5、o not pay enough attention to the features of a folktale that best reveal an African influence(C) overestimate the number of folktales brought from Africa by the slaves(D) do not consider the fact that a folktale can be changed as it is retold many times（B）(E) oversimplify the diverse and complex tr
6、aditions of the slaves ancestral homeland18.The authors main purpose is to(A) create a new field of study(B) discredit an existing field of study(C) change the focus of a field of study(D) transplant scholarly techniques from one field of study to another（C）(E) restrict the scope of a burgeoning new
7、 field of study19.The passage suggests that the author would regard which of the following areas of inquiry as most likely to reveal the slaves cultural continuities with Africa?(A) The means by which Blacks disseminated their folktales in nineteenth-century America(B) Specific regional differences
8、in the styles of delivery used by the slaves in telling folktales(C) The functional meaning of Black folktales in the lives of White children raised by slave(D) The specific way the slaves used folktales to impart moral teaching to their children（D）(E) The complexities of plot that appear most frequ
9、ently in the slaves tales20.Which of the following techniques is used by the author in developing the argument in the passage?(A) Giving a clich a new meaning(B) Pointedly refusing to define key terms(C) Alternately presenting generalities and concrete details(D) Concluding the passage with a restat
10、ement of the first point made in the passage（E）(E) Juxtaposing statements of what is not the case and statements of what is the caseThe energy contained in rock within the earths crust represents a nearly unlimited energy source, but until recently commercial retrieval has been limited to undergroun
11、d hot water and/or steam recovery systems. These systems have been developed in areas of recent volcanic activity, where high rates of heat flow cause visible eruption of water in the form of (in the form of: 以.的形式) geysers and hot springs. In other areas, however, hot rock also exists near the surf
12、ace but there is insufficient water present to produce eruptive phenomena. Thus a potential hot dry rock (HDR) reservoir exists whenever the amount of spontaneously produced geothermal fluid has been judged inadequate for existing commercial systems.As a result of recent energy crisis, new concepts
13、for creating HDR recovery systemswhich involve drilling holes and connecting them to artificial reservoirs placed deep within the crustare being developed. In all attempts to retrieve energy from HDRs, artificial stimulation will be required to create either sufficient permeability or bounded flow p
14、aths to facilitate the removal of heat by circulation of a fluid over the surface of the rock.The HDR resource base is generally defined to included crustal rock that is hotter than 150, is at depths less than ten kilometers, and can be drilled with presently available equipment. Although wells deep
15、er than ten kilometers are technically feasible, prevailing economic factors will obviously determine the commercial feasibility of wells at such depths. Rock temperatures as low as 100 may be useful for space heating (heating of spaces especially for human comfort by any means (as fuel, electricity
16、, or solar radiation) with the heater either within the space or external to it); however, for producing electricity, temperatures greater than 200 are desirable.The geothermal gradient, which specifically determines the depth of drilling required to reach a desired temperature, is a major factor in the recoverability of geothermal resources. Temperature gradient maps generated from oil and gas well temperature-de
