5. lizzie was a brave woman who could dare to incur a great danger for an adequate ----.
(a) risk
(b)bat
(c) object
(d) event
(e) encounter
6. rousseau's short discourse, a work that was generally ---the cautious, unadorned prose of the day, deviated from that prose style in its
---discussion of the physical sciences.
(a) critical of .. lengthy
(b) superior to .. austere
(c) bolder than .. intelligent
(d) consistent with .. unrestrained
(e) influenced by .. uninspired
7. certainly murray's preoccupation with the task of editing the oxford english dictionary begot a kind of monomania, but it must be regarded as a ---or at least an innocuous one.
(a) tame
(b) tendentious
(c) meretricious
(d) beneficent
(e) sincere
8. garbled:prehend::
(a) convoluted : tangle
(b) obscured : recognize
(c) emancipated : free
(d) expunged : excite
(e) determined : placate
9. heat : calorimeter::
(a) distance : odometer
(b) gasoline : tachometer
(c) wind : velocity
(d) rain : humidity
(e) ocean : tide
10. ally : way ::
(a) patriot: brawl
(b) crew: ship
(c) spouse : marriage
(d) peer : class
(e) teammate : game
11. eavesdrop: conversation::
(a) shoplift: customer
(b) trespass: property
(c) gossip: discussion
(d) arrest: suspect
(e) subpoena: witness
12. palpable: touch::
(a) malleable: gild
(b) pala推荐: ingest
(c) pliable: mold
(d) edible: cook
(e) appreciable: please
13. submerge: water::
(a) imprison : walls
(b) immolate: fire
(c) inter: earth
(d) freeze: ice
(e) besiege: army
14. ruthless: mercy::
(a) careless: duty
(b) pallid: subtlety
(c) insipid: flavor
(d) onerous: difficulty
(e) assiduous: energy
15. minion: dependeny::
(a) dilettante: artist
(b) groveler: petitioner
(c) coward: criminal
(d) consul: emissary
(e) vicar: curate
16. panegryic: praise::
(a) oration: prediction
(b) fiat: condescension
(c) manifesto: indecision
(d) stutter: hesitation
(e) valediction: farewell www.gaofen123.com
(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
(e) oversimplify the diverse andplex traditions of the slaves ancestral homeland
18. the author's 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
(e) restrict the scope of a burgeoning new field of study
19. 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 neenth-century america
(b) specific regional differences 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 slaves
(d) the specific way the slaves used folktales to impart moral teachings to their children
(e) theplexities of plot that appear most frequently in the slaves' tales
20. which of the following techniques is used by the author in developing the argument in the passage?
(a) giving a cliche a new meaning
(b) pointedly refusing to define key terms
(c) alternately presenting generalities and concrete details
(d) concluding the passage with a restatement of the first point made in the passage
(e) juxtaposing statements of what is not the case and statements of what is the case
the energy contained in rock within the earth's crust represents a nearly unlimited energy source, but until recentlymercial retrieval has been limited to underground 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 geysers and hot springs. in other areas, however, hot rock also exists near the surface 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 existingmercial systems.
as a result of the recent energy crisis, new concepts for creating hdr recovery systems-which involve drilling holes and connecting them to artificial reservoirs placed deep within the crust-are being developed. in all attempts to retrieve energy from hdr's, artificial stimulation will be required to create either sufficient permeability or bounded flow paths 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 include crustal rock that is hotter than 150℃, is at depths less than ten kilometers, and can be drilled with presently available equipment. although wells deeper than ten kilometers are technically feasible, prevailing economic factors will obviously determine themercial feasibility of wells at such depths. rock temperatures as low as 100℃ may be useful for space heating; 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-depth records kept by the american association of petroleum geologists suggest that tappable high-temperature gradients are distributed all across the united states. (there are many areas, however, for which no temperature gradient records exist.)
indications are that the hdr resource-base is very large. if an average geothermal temperature gradient of 22℃ per kilometer of depth is used, a staggering 13,000,000 quadrillion b. t. u.'s of total energy are calculated to be contained in crustal rock to a tenkilometer depth in the united states. if we conservatively estimate that only about 0.2 percent is recoverable, we find a total that isparable to the estimated resource base of all the coal remaining in the united states. the remaining problem is to balance the economics of deeper, hotter, more costly wells and shallower, cooler, less expensive wells against the value of the final product, electricity and/or heat.
21.the primary purpose of the passage is to
(a) alert readers to the existence of hdr's as an available energy source来源：考
(b) document the challenges that have been surmounted in the effort to recover energy from hdr's
(c) warn the users of coal and oil that hdr's are not an economically feasible alternative
(d) encourage the use of new techniques for the recovery of energy from underground hot water and steam
(e) urge consumers to demand quicker development of hdr resources for the production of energy
22. the passage would be most likely to appear in a
(a) petrological research report focused on the history of temperature-depth records in the united states
(b) congressional report urging the conservation of oil and natural gas reserves in the united states
(c) technical journal article concerned with the recoverability of newly identified energy sources
(d) consumer report describing the extent and accessibility of remaining coal resources
(e) pamphlet designed to introduce homeowners to the advantages of hdr space-heating systems
23. according to the passage, an average geothermal gradient of 22℃ per kilometer of depth can be used to
(a) balance the economics of hdr energy retrieval against that of underground hot water or steam recovery systems
(b) determine the amount of energy that will be used for space heating in the united states
(c) provideparisons between hot water and hdr energy sources in the united states
(d) revise the estimates on the extent of remaining coal resources in the united states
(e) estimate the total hdr resource base in the united states
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