1、1 The hunter-gatherer tribes that today live as our prehistoric 1.______ human ancestors consume primarily a vegetable diet supplementing 2._____ with animal foods. An analysis of 58 societies of modem hunter- gatherers, including the Kung of southern Africa, revealed that one half emphasiz
2、e gathering plant foods, one-third concentrate on fishing and only one-sixth are primarily hunters. Overall, two-thirds and more of the hunter-gatherer’s calories come from plants. Detailed 3.______ studies of the Kung by the food scientists at the University of London, showed that gathering is
3、a more productive source of food than is hunting. An hour of hunting yields in average about 100 4.______ edible calories, as an hour of gathering produces 240. 5.______ Plant foods provide for 60 percent to 80 percent of the Kung 6._______ diet, and no one goes hungry when the hunt fails. Inte
4、restingly, if they escape fatal infections or accidents, these contemporary aborigines live to old ages despite of the absence of medical care. 7._______ They experience no obesity, no middle-aged spread, little dental decay, no high blood pressure, on heart disease, and their blood cholestero
5、l levels are very low( about half of the average American 8._______ adult), if no one is suggesting what we return to an aboriginal life 9.________ style, we certainly could use their eating habits as a model for 10.________ healthier diet. 2 The grammatical words which play so large a part in
6、English grammar are for the most part sharply and obviously different 1._______ from the lexical words. A rough and ready difference which may seem the most obvious is that grammatical words have“ less meaning”, but in fact some grammarians have called them 2._______ “empty” word
7、s as opposed in the “full” words of vocabulary. 3.________ But this is a rather misled way of expressing the distinction. 4._________ Although a word like the is not the name of something as man is, it is very far away from being meaningless; there is a sharp 5._________ difference i
8、n meaning between “man is vile and” “the man is vile”, yet the is the single vehicle of this difference in meaning. 6.________ Moreover, grammatical words differ considerably among themselves as the amount of meaning they have, even in the 7.________ lexical sense. Another name for
9、the grammatical words has been “little words”. But size is by no mean a good criterion for 8._________ distinguishing the grammatical words of English, when we consider that we have lexical words as go, man, say, car. Apart 9.________ from this, however, there is a good deal of truth
10、 in what some people say: we certainly do create a great number of obscurity 10.________ when we omit them. This is illustrated not only in the poetry of Robert Browning but in the prose of telegrams and newspaper headlines. 3 During the early years of this century, wheat was seen as
11、 the very lifeblood of Western Canada. People on city streets watched the yields and the price of wheat in almost as much feeling as if 1._______ they were growers. The marketing of wheat became an increasing 2._______ favorite topic of conversation. War set the stage for the m
12、ost dramatic events in marketing the western crop. For years, farmers mistrusted speculative grain selling as carried on through the Winnipeg Grain Exchange. Wheat prices were generally low in the autumn, so farmers could 3._______ not wait for markets to improve. It had happened too of
13、ten that they sold their wheat soon shortly after harvest when farm debts 4.________ were coming due, just to see prices rising and speculators getting rich. 5._______ On various occasions, producer groups, asked firmer control, 6._______ but the government had no wish to become invol
14、ving, at 7.______ least not until wartime when wheat prices threatened to run wild. Anxious to check inflation and rising life costs, the federal 8.______ government appointed a board of grain supervisors to deal with deliveries from the crops of 1917 and 1918. Grain Exchange
15、 trading was suspended, and farmers sold at prices fixed by the board. To handle with the crop of 1919, the government appointed 9.______ the first Canadian Wheat Board, with total authority to 10.______ buy, sell, and set prices. 4 There are great impediments to the general use of a sta
16、ndard in pronunciation comparable to that existing in spelling (orthography). One is the fact that pronunciation is learnt “naturally” and unconsciously, and orthography is learnt 1__________ deliberately and consciously. Large numbers of us, in fact, remain throughout our lives quite uncons
17、cious with what our speech 2._____________ sounds like when we speak out, and it often comes as a shock 3.__________ when we firstly hear a recording of ourselves. It is not a voice we 4._________ recognize at once, whereas our own handwriting is something which we almost always know. We begin
18、 the natural learning 5.__________ of pronunciation long before we start learning to read or write, and in our early years we went on unconsciously imitating and 6.____________ practicing the pronunciation of those around us for many more hours per every day than we ever have to spend learning
19、 even our 7.______________ difficult English spelling. This is “natural”, therefore, that our 8.______________ speech-sounds should be those of our immediate circle; after all, as we have seen, speech operates as a means of holding a community 9._______________ and giving a sense of 'belonging'
20、 We learn quite early to recognize a “stranger”, someone who speaks with an accent of a different community-perhaps only a few miles far. 10.________________ 5 Demographic indicators show that Americans in the postwar period were more eager than ever to establish families. They quickly
21、 brought down the age at marriage for both men and women and brought the birth rate to a twentieth century height after more than a hundred (1)______ years of a steady decline, producing the “baby boom.” These young (2)_______ adults established a trend of early marriage and relatively large
22、 families that Went for more than two decades and caused a major (3)_______ but temporary reversal of long-term demographic patterns. From the 1940S through the early 1960s, Americans married at a high rate (4)________ and at a younger age than their Europe counterparts.(5)________ Less n
23、oted but equally more significant, the men and women on who (6)________ formed families between 1940 and 1960 nevertheless reduced the (7)________ divorce rate after a postwar peak; their marriages remained intact to a greater extent than did that of couples who married in earlier as well (8)
24、 as later decades. Since the United States maintained its dubious (9)___________ distinction of having the highest divorce rate in the world, the temporary decline in divorce did not occur in the same extent in (10)___________ Europe. Contrary to fears of the experts, the role of b
25、readwinner and homemaker was not abandoned. 6 One of the most important non-legislative functions of the U.S Congress is the power to investigate. This power is usually delegated to committees - either standing committees, special committees set for a specific (1)________ purpose, or join
26、t committees consisted of members of both houses. (2)________ Investigations are held to gather information on the need for future legislation, to test the effectiveness of laws already passed, to inquire into the qualifications and performance of members and officials of the other branches,
27、 and in rare occasions, to lay the (3)________ groundwork for impeachment proceedings. Frequently, committees rely outside experts to assist in conducting investigative hearings (4)_________ and to make out detailed studies of issues. (5)_________ There are important corollaries to the inves
28、tigative power. One is the power to publicize investigations and its results. Most (6)_________ committee hearings are open to public and are reported (7)__________ widely in the mass media. Congressional investigations nevertheless represent one important tool available to lawmakers (8)____
29、 to inform the citizenry and to arouse public interests in national issues.(9)________ Congressional committees also have the power to compel testimony from unwilling witnesses, and to cite for contempt of Congress witnesses who refuse to testify and for perjury these who give false
30、testimony. (10)_________ 7 The University as Business A number of colleges and universities have announced steep tuition increases for next year much steeper than the current, very low, rate of inflation. They say the increases are needed because of a loss in value of university endowment
31、s heavily investing in common 1 stock. I am skeptical. A business firm chooses the price that maximizes its net revenues, irrespective fluctuations in income; and increasingly the 2 outlook of universities in the United States is indistinguishable from those of 3
32、business firms. The rise in tuitions may reflect the fact economic uncertainty 4 increases the demand for education. The biggest cost of being in the school is foregoing income from a job (this is primarily a factor in 5 graduate and professional-school tuition); the poor
33、 one's job prospects, 6 the more sense it makes to reallocate time from the job market to education, in order to make oneself more marketable. The ways which universities make themselves attractive to students 7 include soft majors, student evaluations of teachers
34、 giving students a governance role, and eliminate required courses. 8 Sky-high tuitions have caused universities to regard their students as customers. Just as business firms sometimes collude to shorten the 9 rigors of competition, universities
35、 collude to minimize the cost to them of the athletes whom they recruit in order to stimulate alumni donations, so the best athletes now often bypass higher education in order to obtain salaries earlier from professional teams. And until they were stopped by the antitrust authorities, the Iv
36、y League schools colluded to limit competition for the best students, by agreeing not to award scholarships on the basis of merit rather than purely of need-just like business firms agreeing not to give discounts on their best 10 customer. 8 We use language primarily as a means of
37、communication with other human beings. Each of us shares with the community in which we live a store of words and meanings as well as agreeing conventions as 1_______ to the way in which words should be arranged to convey a particular 2______ message: the English speaker has in his dispos
38、al vocabulary and a 3_______ set of grammatical rules which enables him to communicate his 4______ thoughts and feelings, in a variety of styles, to the other English 5_______ speakers. His vocabulary, in particular, both that which he uses actively and that which he recognizes, inc
39、reases in size as he grows old as a result of education and experience. 6______ But, whether the language store is relatively small or large, the system remains no more, than a psychological reality for tike inpidual, unless he has a means of expressing it in terms
40、 able to be seen by another 7_______ member of his linguistic community; he bas to give tile system a concrete transmission form. We take it for granted rice’ two most 8_______ common forms of transmission-by means of sounds produced by our vocal organs (speech) or by visual signs (writi
41、ng). And these are 9______ among most striking of human achievements. 10_______ 9 From what has been said, it must be clear that no one can make very positive statements about how language originated. There is no material in any language today and in the earl
42、iest 1 __ _ records of ancient languages show us language in a new and 2 _ emerging state. It is often said, of course, that the language 3 _ ______ originated in cries of anger, fear, pain and pleasure, and the 4 _ necessary evidence is entirely
43、 lacking: there are no remote tribes, no ancient records, providing evidence of a language with a large proportion of such cries 5 _ than we find in English. It is true that the absence of such evidence does not disprove the theory, but in 6_ o
44、ther grounds too the theory is not very attractive. People of all races and languages make rather similar noises in return to pain or pleasure. The fact that 7 such noises are similar on the lips of Frenchmen and Malaysians whose languages are utterly different, ser
45、ves to emphasize on the fundamental difference 8________ between these noises and language proper. We may say that the cries of pain or chortles of amusement are largely reflex actions, instinctive to large extent, 9 whereas language proper does not consist of sign
46、s but of these that have to be learnt and that are 10________ wholly conventional. 10 The desire to use language as a sign of national identity is a very natural one,and in result language has played a 1__________ prominent part in national moves.Men have often felt the need
47、2__________ to cultivate a given language to show that they are distinctive 3____________ from another race.whose hegemony they resent.At the time the 4.___________ United States split off from Britain,for example,there were proposals that independence should be linguistically accepted by 5.__
48、 the use of a different language from those of Britain.6.____________ There was even one proposal that Americans should adopt Hebrew.Others favoured the adoption of Greek,though,as one man put it,things would certainly be simpler for Americans if they stuck on to 7.____________ English
49、 and made the British learn Greek.At the end,as everyone 8.___________ knows,the two countries adopted the practical and satisfactory solution of carrying with the same language as before.Since nearly two hundred years now,they have shown the 9.______________ world that political independence and
50、national identity can be 10.___________ complete without sacrificing the enormous mutual advantages of a common language. 11 The previous section has shown how quickly a rhyme passes from one school child to the next and illustrates the further difference (1)_____ between school lore and






