$ z* r% p- z/ J! J考博论坛 The world has spent on preparations for war more than $112 billion a year, roughly $450 per head for every man, woman, and child in the world. Let us consider for a moment what could be done with this sum of money if it were spent on peace and not on war. Some of it, at any rate, I the more prosperous countries, could be spent on the reduction of taxation. The rest should be spent in ways that will, at the same time, be of benefit to mankind and a solution to the economic problem of conversion from war industry to the expansion of peace industries. As to this expansion, let us begin with the most elementary of all needs, namely, food. At present, the majority of mankind suffers from undernourishment, and, in view of the population explosion, this situations is likely to grow worse in coming decades. A very small part of what is now being spent upon armaments would rectify our predicament. Not only could the American surplus of grain, which was for many years uselessly destroyed, be spent in relief of famine, but, by irrigation, large regions now desert could be made fertile, and, by improvement in transport, distribution from regions of excess to regions of scarcity could be facilitated.考博论坛|免费考博社区:最早最大的中文考博论坛,考博.中国,freekaobo.com, p- F5 t. T( W; h SuJa?VU1w
Housing, even in the richest countries, is often disastrously inadequate. This could be remedied by a tiny fraction of what is being spent on missiles. Education everywhere, but especially I the newly liberated countries of Africa and Asia, demands an expenditure many times as great as that which it receives at present. But it is not only greater expenditure that is needed in education. If the terror of war were removed, science could be devoted to improving human welfare, instead of to the invention of increasingly expensive methods of mutual slaughter, and schools would no longer think it a part of their duty to promote hatred of possible enemies by means of ignorance tempered by lies. : ?) d# D- |% ~* q F?c:
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By the help of modern techniques, the world could enter upon a period of happiness and prosperity far surpassing anything known in previous history. All this is possible. It requires only a different outlook on international affairs and a different state of mind toward those notions which are now regarded as enemies. This is possible, I repeat, but it cannot be done all at once. To reverse the trend of affairs in the most powerful nations of the world is no light task and will require a difficult process of re-education. ^[=1J
4 e% c. q/ S: M" p# l26. By diverting some or all of the money spent on preparation for war to peaceful purposes, all of the following benefits would occur except that ____. zcE`.)y
, p/ y. ]* ^- c8 H7 a# c4 C考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.comA) education could be improved b/]@G05>>
: t5 B A3 s O: E2 {B) science could concentrate on improving human welfare考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.com. ]7 |( o, ]2 a# L9 j* ] Q2LAXTF]y
C) better housing could be providedwww.freekaobo.com9 h: X# p' X" o, `) p L?&Trq7i
D) the population explosion could be controlled0 T8 p; m8 ]& Y. O; ` CBu$8]9=
27. Schools at the present time often have to make use of ____.考博论坛! c% z5 r# c- Y2 `! t E]&tgZO
A) inadequate funds# g. X: U2 B+ J* ?$ m9 B pKzrdw-!
B) untrained teaches考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.com+ G- b7 V6 L6 ^' {- E7 s- S s $?u'}G3
C) poor buildings0 H* T, z) t7 e V }wh
D) lies in order to promote hatred of possible enemies ;/~%D(
3 |1 [ w3 E; Y考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.com28. The problem of undernourishment will become more critical because ____.8 y; r% O. W' x: {- P, u _OY<Hb3%M
A) America destroys its surplus goods '(f
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: i0 r- g, c# T) M8 X考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.comB) there is inadequate shipping考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.com+ D* X/ t9 ^/ m8 J$ R/ k gMB/ ~g5b0
C) of the population explosion "*oN~&flc
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29. The adjective that best describes this author is ____.考博论坛2 X! J+ k" |# W' m- q# V$ G g6!#n
A) quixotic B) lugubrious C) pragmatic D) utopian *OR(8;
4 ~2 U9 f8 \* e. v( v: h- j30. According to the author, a very small part of what is being spent upon armaments would ___. Y^ti;:
6 c* H9 s1 W/ P考博论坛 A) lead to more disputes e*/ya 8p?
. M$ t! M5 {$ J% N3 M考博论坛|免费考博社区:最早最大的中文考博论坛,考博.中国,freekaobo.com B) help us make prediction 3=Va0}#&
- {; C. B. e/ p d2 |/ f0 B C) hardly help solve the population explosion <^YZ#3~1T
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Although humans have much bigger brains relative to body weight than do other primates, the total resting energy requirements of the human body are no greater than those of any other mammal of the same size, implying that we use a higher share of our daily energy budget to feed our voracious brains. How did such an energetically costly brain evolve? 1`@rAA>h'
, u$ P# _3 ], ]) O) cwww.freekaobo.com One theory holds that bipedalism enabled hominids to cool their cranial blood, thereby freeing the heat-sensitive brain of the temperature constraints that had kept its size in check. But brain expansion almost certainly could not have occurred until hominids adopted a diet sufficiently rich in calories and nutrients to meet the associated costs. Across all primates, species with bigger brains dine on richer foods, and humans are the extreme example of this correlation, boasting the largest relative brain size and the choicest diet. Animal foods are far denser in calories and nutrients than most plant foods, and so it stands to reason that for early Homo, acquiring more gray matter meant seeking out more of the energy-dense fare. qkh.?~
' C, W) l+ X6 V$ |, k Fossils, too, indicate that improvements to dietary quality accompanied evolutionary brain growth. The later, robust proto-humans—a dead-end branch of the human family tree that lived alongside members of our own genus—had heavily built mandibles and huge, thickly enameled molar teeth built for processing tough, low-quality plant foods, while early members of the genus Homo, which descended from the gracile proto-humans, had much more delicate jaws and, smaller molars despite being far larger in terms of overall body size than their predecessors. 考博论坛" k" G% d" t! o: ?" h% e' h- s gA~faje
Environmental change appears to have set the stage for this evolutionary change when the continued desiccation of the African landscape limited the amount and variety of edible plant foods available to hominids. Thus we often see an increase in animal bones at hominid sites during this period, along with evidence that these beasts were butchered using stone tools. While the robust proto-humans coped with this problem morphologically, evolving anatomical specializations that enabled them to subsist on more widely available, difficult-to-chew foods, Homo took a different path. As it turns out, the spread of grasslands also led to an increase in the relative abundance of grazing mammals such as antelope and gazelle, creating opportunities for hominids capable of exploiting them. Homo developed the first hunting-and-gathering economy in which game animals became a significant part of the diet and resources were shared among members of the foraging groups.5 q- W$ E. O- D+ W+ q9 Q -nKBSl
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These changes in diet and foraging behavior did not turn our ancestors into strict carnivores, but the addition of modest amounts of animal foods to the menu, combined with the sharing of resources that is typical of hunter-gatherer groups, significantly increased the quality and stability of hominid diets, and after the initial spurt in brain growth, diet and brain expansion probably interacted synergistically: bigger brains produced more complex social behavior, which led to further shifts in foraging tactics and improved diet, which in turn fostered additional brain evolution.考博论坛9 s$ A0 e/ X* G & wG3RR|
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, ~% H5 N5 k" E31. The author is primarily concerned with______.考博,考博网,考博论坛,免费考博论坛,免费考博网站,考博英语,考博试题,考博试卷,考博辅导,考博.中国,freekaobo.com' S) @0 ?5 P( N$ @ js8GK
A) disproving the view that bipedalism alone can account for the human brain’s evolution {r?qI
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C) contrasting the characteristics of Homo and his primate ancestors |
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) S5 q1 O7 A; @: A. s. cwww.freekaobo.com32. The author refers to the increase in animal bones in the fourth paragraph primarily in order to _____. >5!/&D.q
demonstrate the increase of the availability of grazing mammals during the desiccation of the African landscape 考博论坛1 o+ E {( O8 k5 m/ s7 W+ ~6 [, E+ {6 s- K5 p BA+:}81&<q
B) provide proof that environmental changes did indeed occur around a time of rapid evolution for Homo* {) b' r8 E( o5 ^& S &5u[q
C) explain the means by which Homo was able to make use of the appearance of the antelope and gazelle 考博论坛% e- f0 N* V; [* {' j, s Bt^];DjH
D) offer evidence that with the desiccation of the African landscape, Homo’s diet changed from that of the australopithecine .5m^)hi
/ L2 r- F7 T6 V& L6 P8 D1 Y33. It can be inferred from the passage that chimpanzees are characterized by ____.考博论坛 t) U; P: x f4 P: G4 ~( K \w=7L-
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A) brains that use less overall body energy than the percentage humans use 2 |: ~6 W; U7 p/ ^ ]\:FFg_O6t
B) the possession of less total body weight than the average human weight - H/ O! h& ]) [8 s4 `* ]/ q _\Cd.
C) a total resting energy equal to that of human resting energy 考博论坛9 R0 M/ s7 s/ D& O" k oFeflcSz
D) a diet completely devoid of rich foods preferred by more developed species考博论坛|免费考博社区:最早最大的中文考博论坛,考博.中国,freekaobo.com( `8 _& O O8 ^6 i 7" wn024
34. The author mentions all of the following as evidence that dietary changes accompanied the expansion of Homo’s brain EXCEPT____.# @) x' f; Q# c/ Q/ j |V|)cPQ
A) the higher calorie density found in foods Homo ate during the expansion, and their extra nutrients 考博论坛+ F% S% L0 g3 V5 _ jdY v*/^
B) the fossil record of Homo, and what it indicates about Homo’s progressive adaptation 考博论坛|免费考博社区:最早最大的中文考博论坛,考博.中国,freekaobo.com7 k' Q/ {/ ?+ q) N2 w$ t
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C) the fact Homo was larger in terms of overall body size than its predecessors E4'D4@\W
# x1 H) q! f) ` F6 U' m8 t考博论坛D) the development of a hunting-and-gathering economy beneficial to further brain growth s
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# D+ Q9 X; h% f, @4 S, V35. According to the passage, initial improvement in brain function in Homo’s ancestors resulted at least partially from which of the following? \g}FoN&