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Agriculture remains the most essential area for development: here it is felt that the most intractable problems of resistance to change exist. One may believe that scientific training in agriculture by itself is unlikely to have any marked impact on agricultural output. Any attempt at vocational training in agriculture presupposes mat a meaningful structure of incentive can be seen for the individual farmer to increase his production, improve his techniques, and expand his range of activities. Without such incentives and chances, agricultural education can have only little impact.
1. The author feels that improvements in the field of agriculture.
cannot be achieved only by means of scientific training
have already introduced good results
can easily be seen
have largely based on technology
E) are absolutely unnecessary for productivity
2. We can infer from the passage that the agricultural community.
is willing to have more vocational training
disregards the problems of the individual farmer
has already started to get benefit from the improved techniques
is conscious about the long-term profits of scientific training
E) is not the one that enjoys any change
3. The author is in the opinion that vocational training in agriculture.
will be the best way to eliminate resistance to change in society
might supply farmers with a wide range of opportunities
will be useless even if it is backed up with various incentives
has often been disregarded by various authorities
E) is supposed to be as a priority for social development
Tigers usually grow to lengths of more than nine feet and can be bigger than the largest lion. They have great strength. They clutch their prey to them, holding on with their claws, and depend on the crushing bite of their powerful jaws. They swim very well and can often be seen splashing about in water on very hot days, as they apparently suffer from the heat. When the air is cool, however, they avoid wet or damp vegetation. They can climb, but do not approach the leopard's ability in this. They can survive in rocky areas but generally prefer to stay on level ground. They are not as well equipped with senses as one might expect. They apparently depend on their hearing while hunting. Their eyesight is not particularly good, and they cannot spot prey until it moves.
4. Tt is clear in the text that tigers. .
are the most talented climbers of all wild animals
rely heavily on their huge claws to catch their prey
are sensitive to significant variations in climate
closely take after lions as regards speed ,size and strength
E) rely on their eyesight in finding and catching prey
5. As is expressed in the passage, a flat terrain. .
is usually the favoured place of the tiger
provides camouflage for other wild animals
rather than rocky cliffs gives tigers better chances to hunt
usually has varied vegetation which shelters better prey
E) is usually chilly, so tigers prefer higher levels
6. From the passage we can infer that, contrary to what is generally
climbing is the least developed ability of the tiger
as soon as a prey starts to move a tiger can rarely catch it
hilly areas are invariably avoided by all wild animals
the leopard's hunting ability is much worse than that of the tiger
E) the tiger's senses are not well developed
Psychologists have long sought ways to define and measure human intelligence. And the theories of intelligence have grown more sophisticated since the 1800s when some believed mental abilities were determined by the size of a person's head. However, researchers still do not agree about certain fundamental principles of human thought. They, therefore, continue to discuss such basic debates as whether heredity or the environment is more effective in forming intelligence.
7. As we can understand from the passage, the basic controversy about whether intelligence depends upon heredity or the environment .
was hopefully discussed in the 1800s
is now being avoided as it is seen to be fruitless
has only recently become a solemn affair for serious researches
does not seem to have ended yet
E) was much more significant in the 19th century than it is today
8. According to the passage, in the early nineteenth century, some people were in the opinion that a person's mental capacity .
could never be improved
depended on the size of his head
was completely changed by the environment
was purely genetic
E) was fundamental to his personality
9. One may conclude from the text that a full understanding of the nature and the capacity of human intelligence .
can only be received by exceptionally sophisticated minds
has finally been obtained by modern scientists
can be achieved within the next few years
is unlikely to be achieved in the near future
E) will emerge via the practical rather than experimental studies
Of all the environmental problems facing us today, global warming is likely to have the most devastating effects, In order to combat these, the emission of harmful gases must be reduced; for this purpose, the rainforests, which absorb carbon dioxide in vast quantities must be protected. Global warming will place a premium on energy efficiency, for controlling global warming inescapably means reducing the burning of fossil fuels. The two industries that are most obviously going to be affected are the power suppliers and the vehicle manufacturers, but since energy is consumed by almost everything we manufacture, design or do, the effects will be felt everywhere.
10. It is emphasized in the passage that global warming seems to be
easier to control than other environmental problems
of less of a threat than formerly it used to be
the most terrible of the problems facing the environment
one of the causes for the disappearance of the rainforests
E) a simple matter
11. The author explains that unless the burning of fossil fuels is
radically reduced .
global warming cannot possibly be held in check
they will soon be used up
traditional power supplies will not be adequate
energy efficiency cannot be achieved
E) there will be no energy crisis
12. According to the passage, power supply and vehicle manufacturing
are two industries that do not affect global warming
rely heavily on fossil fuels
C) are environmentally less harmful than other industries
D) have carried the problems of global warming everywhere
E) have no common bases
The ozone layer absorbs all the highest frequencies of ultraviolet radiation and prevents them from reaching the surface
of the planet. A reduction of only 5 per cent in its overall concentration would probably lead to about a 10 per cent increase
in human skin cancers and a 10 per cent drop in stratospheric ozone levels would increase the amount of hot and dangerous
ultraviolet radiation on earth by 20 percent. Beyond this level the precise effects of ozone layer depletion on both humans and
wildlife are extremely difficult to predict.
13. As the passage points out, major function of the ozone layer is to
prevent the transmission of low frequency radiation
protect the earth from the harmful effects of ultraviolet radiation
reduce the amount of radiation in the stratosphere to 10 percent
regulate the frequencies of ultraviolet radiation
E) provide oxygen
14. The author points out that it is almost impossible to estimate .
the effects of a drop of more than 10 percent in, the level of ozone concentration
how wildlife has been affected by the increase in ultraviolet radiation
the extent of ozone depletion in recent years
the annual rate of skin cancer due to ozone depletion
E) what the effects of ozone hole will be
15. The author points out that a 10 percent increase in human skin
cancer would be likely to occur .
unless measures could be found to prevent ozone layer depletion
should there be 20 percent increase in ultraviolet radiation
if there were a 5 percent drop in the ozone layer density
if ^rgent action were not taken to prevent it
E) as long as they don't use preventive lotions
There are several kinds of dams. One kind is called an earth dam. This consists of a large bank of earth with steep sides. Along the length of the base of the dam a cut-off wall is constructed and this extends down to an impervious stratum. The function of the cut-off wall is to make the foundation watertight. Openings are made in the base of the dam to allow water to escape, thus controlling the level of water in the reservoir and providing a regular supply of water. These openings are called sluices. There is one disadvantage with this kind of dam. The material does not become watertight until the reservoir is full of water.
16. The passage describes, in broad terms, .
a number of disadvantages related to earth dams
the advantages of various types of dams
the differences between the various types of dams
the technical features of an earth dam
E) common features of dams
17. According to the passage, the function of sluices in an earth dam is to_______ .
A) prevent any escape of water
provide support for the cut-off wall
direct the flow of incoming water
maintain a regular supply of water in the reservoir.
E) leakwter when needed
18. It can be understood from the passage that, without a cut-off wall,
an earth dam would not be water- tight
it would be impossible to open sluices
only an earth dam can be constructed
a longer base would be essential for the functioning of an earth dam
there will be no water shortage
Protoplasm, which is the fundamental basis of life, is constantly undergoing physical and chemical change. Life, therefore, is the resultant of these constantly occurring changes. There are two great groups into which living things may be classified plants and animals. Both the plant and the animal kingdoms are very extensive. It is customary, therefore, to regard the science of life under two comprehensive heads, namely, botany which is the study of plants and zoology, which is the study of animals. Both subjects are subdivided into various specialized sections.
19. It is pointed out in the passage that life is the outcome of .
the interaction between plants and animals
change from a physical to a chemical state of being
physical change taking place in the animal world
the constant change, both physical and chemical, occurring in protoplasm
E) the activities a person fulfills
20. It is understood from the passage that the science of botany ,
is less specialized than that of zoology
deals with a limited number of plants
is concerned with the plant world
is a subsection of zoology
E) is not so well-known a zoology
21. The author points out that the study of living things, although
carried out under various specialized headings, _____ __.
emphasizes the importance of genes and species
depends upon extensive field research
is mainly related to zoology
actually involves two basic fields of science
E) may not be appreciated whatsoever
The exact number of people who died in the cyclone that struck Bagladesh last year will probably never be known. Winds reaching 145 miles per hour hammered the country's low-lying southeastern coast for nine hours, at one point driving a wall- of water roughly 20 feet high across the area- one of the most densely populated places in the world. It was the strongest storm ever recorded in the region. The official news agency reported that 125.000 victims had been confirmed dead, but it was believed that the toll was actually much higher.
22. One can infer from the passage that one reason why so many lives
were lost in the cyclone was because .
most of the population had no decent housing
the BagJadesh government had failed to foresee such a disaster
the country had still not recovered from the previous similar eye J one
the area struck was one of the most overcrowded in the world
E) the people were not prepared
23. We can understand from the'passage that the official figures given
regarding the death toll .
didn't reflect the actual extent of the tragedy
overestimated the number of victims
were much higher than the authorities expected
included only those drowned
E) were the same as they were thought to be
24. The passage aims to impress on the reader .
the extent of suffering experienced by the people in Bangladesh
the magnitude of the cyclone's destructive force
the inadequacy of the relief work sent in
the extent of the poverty and misery in Bagladesh
E) what disaster like in Bengladesh
In all civilizations, articles are consumed that have no nutrient value but make the food more attractive, or give pleasure. Spices, condiments, herbs, vinegar, and pickles are used for this purpose. There is no objection to them for the normal stomach, and there is no evidence that they can cause damage to the normal stomach lining. Tea, coffee, manufactured drink, and alcohol also form part of the diet. They have no nutritive value but add to the pleasure of a meal, in moderation. Tea and coffee both contain caffeine. Which is a mild stimulant and also causes the kidneys to excrete more water. They may cause sleeplessness, but not all people are affected. Alcohol, if not consumed excessively by adults, cannot be objected to on any medical ground.
25. The common feature of such items as spices condiments herbs vinegar and pickles is that_______ .
they are all manufactured rather than natural
they can all do harm to the stomach lining
they can classified in the group of mild stimulants
they are not nutritious but give the food flavour
E) they are rather costly
26. From a medical point of view .
there is a close link between the person's age and the amount of alcohol he drinks
eating foods that have no nutritive value helps do nothing but tire the stmomach out
alcohol isn't considered harmful when drunk in moderate amounts by adults
it is important from a psychological point of view to eat palatable meals as wel] as nutritious.
E) alchol should be prohibited
27. The writer states that .
the effect of coffee and tea on sleep can vary from person to person
manufactured drinks are more harmful than tea and coffee
tea, coffee and manufactured drinks are usually consumed more when the person is dieting
kidneys are the organs which are affected most when tea and coffee are drunk excessively
E) people tend to sleep more than they need
Geometry is a very old science. We are told by Herodotus, a Greek historian, that geometry had its origin in Egypt along the banks of the river Nile. The first record we have of its study is found in a manuscript written by Mimes, an Egyptian scholar, about 1550 B.C. This manuscript is believed to be a copy of a treatise which dated back probably, more than a thousand years, and describes the use of geometry at that time in a very crude form of surveying or measurement. In fact, geometry, which means "earth measurement," received its name in this manner. This re-measuring of the land was necessary because of the annual overflow of the river Nile and the consequent destroying of the boundaries of farm lands. This early geometry was very largely a list of rules or formulas for finding the areas of plane figures. Many-of these rules were inaccurate, but in the main, they were fairly satisfactory.
28. The passage deals with .
floods of the river nile
beginnings of geometry
surveying in egypt
manuscript of mimes
E) significance of geometry|bday
29. In developing geometry the early Egyptians were primarily concerned with_______.
discovering how formulas used in measuring were accurate
determining property boundaries
constructing a logical system of geometry
measuring the overflow of the Nile
E) establishing formulas
30. One of the factors in the development of geometry as science was
the inaccuracy of the early rules and calculations
annual flooding of the Nile Valley
destruction of farm crops
E) an ancient manuscript copied by Egyptians
Computers have led to a greater change in our society in recent decades than any other force and are likely to continue to do so until the next century. The industry surrounding computers is growing quickly, providing employment for many but meanwhile making others redundant. Jobs that computers can do much more reliably, faster and cheaper are lost. The redeployment of labour and the prospect of increased leisure are causing social upheavals which require new ideas and significant changes of attitude.
31. It is pointed out in the passage that the introduction of computers into daily life________ .
has definitely solved the problem of unemployment
has had no effect on the traditional habits of society
can be regarded as the greatest technical achievement of the age
has led to an improvement in working conditions
E) has brought a lot of benefits but has also created some serious problems
32. According to the passage, the impact computers have had on society
will certainly continue to increase right through the next century
has been unnecessarily exaggerated in recent years
has generally been confined to industrial life
has exceeded that.of any other technological development in recent times
E) is very much less than it has been on industry
33. As is implied in the passage, the widespread use of computers in industry_______ .
has made considerable changes in the working system inevitable
has unfortunately increased production costs
has reduced the working hours but not the work load
will, in the next century, lead to even more disillusionment
E) has given rise to many new solutions to the problems of unemployment
Tavi Fabrics is a Portuguese textile and clothing firm which, until recently, employed about 300 workers and had a turnover of 6 million pounds. Now, however, Tavi is facing serious problems. In the last two years its fabric sales have remained steady, but profits have declined sharply. This is because Pakistani and Italian suppliers have been forcing prices down. In the ready-to-wear market, the condition is much worse. Competition is cutthroat. Exporters from 24 low-cost countries are fighting for a share in the European market. Tavi is suffering from this competition. The stores are now bargaining hard over prices, and Tavi has already lost two important orders.
34. The passage presents the case of a textile firm which, .
in recent years, has recovered its lost markets by introducing drastic measures
on the whole, has been showing a steady improvement in its position
owing to fierce international competition, is having 10 struggle to survive
quite unfairly, has laid off more than half of its work force
E) in the long run, seems likely to defeat its main competitors
35. We can understand from the passage that the area which has been
hit worst by international competition .
is that of fabric sales in which Tavi has made great profits
has been textile industries of India and Pakistan
is the home market itself in which Tavi wed to be in the lead
is the clotbing industry in Portugal
E) has been ready-to-wear market
36. One can conclude from the passage that Tavi's problems .
are due do the unrest among the workers
arise from the growing market pressure of low-cost countries
are linked with the lack of interest in the European market
must be related to the continuous rise in prices in textile
E) began with the loss of two large orders
The main advantage of prefabrication aretwo fold: it is quicker and it does away with uncertainty. Speed in building is significant these days due to the high cost of land: the time during which such an expensive commodity is out of use must be reduced to a minimum. And partly or wholly prefabricated methods of construction save time on the job because parts are prepared in the factory beforehand. Prefabrication does away with uncertainty because it means that the whole building is made of standard parts the behaviour of which is known and has been tested.
37. Since land is extremely valuable it is important that .
the building materials should also be expensive
costs do not continue to rise
people should not disagree as to the advantages of prefabrication
building costs be reduced to a minimum
E) it does not remain out of use for long
38. One advantage of using prefabricated parts is that .
this method is cheaper than standard methods
fewer skilled workmen are required
less land is needed
buildings can be constructed much faster
E) there is more scope for experiment
39. When a building Is constructed from standard parts that hale been well-tested_______.
One is still not sure how they will behave in a particular situation
there is no scope for originality
new methods of construction are overlooked
one knows in advance that the result will be satisfactory
E) the costs will naturally be excessively high
Computers can store vast amount of information in a very small space and are used by the banks to keep accounts, and control transactions. They are also used by the police to keep personal records, fingerprints and other details. In the developing field of robotics computers are now being used to control manual operations done by machines, These two are taking over work, previously done by humans, in the manufacture of cars, in weaving and other industries. Computers play an important role in controlling artificial satellites, decoding information and communications generally. They are used to predict the weather with increasing accuracy.
40. One can conclude from the passage that .
computers have become an indispensable part of our life
weather forecasts carried out by computers are not reliable at all
C) despite great advances in computer techniques, they are not provingas useful-as once hoped
D) robotics has long been a field of keen scientific interest for man
E) computerised banking has led to an increase in unemployment
the police use computers to make sure that their records are not leaked
industry is turning back to traditional methods of production
the principal use of computers is in space technology
computers are too complex for everyday use
E) the use of robots, directed by computers, is becoming widespread in industry
42. The passage is not concerned with .
how computers are produced
the application of computers in industry
the use of computers in communications and the transfer of information
the conservation of information by technology
the role played by computers in crime detection
Looking ahead from the present position where food production has kept ahead of population growth globally, but has fallen per capita in 55 (mainly African) countries, it would seem that these trends will carry on. About 30 countries most of which are African can expect serious problems unless they reduce population growth and give higher priority to agriculture and conservation. Though a warmer, wetter earth with high C02 levels islikely to be capable of producing more food, the amounts will still be inadequate for many poorer countries. In many circumstances, the population projections are greater than the entire local land resources can support.
43. Of all the countries in the world it is those in Africa .
which have taken the most drastic measures to prevent population growth
that are most threatened by food shortages
that are most conscious of the need to preserve the environment
which are environmentally most at a disadvantage
E) in which poverty has been greatly reduced through agricultural development
44. It is argued the passage that .
A) changes in world climate are giving rise to the problems of foodproduction
with the exception of African countries, the global production of food is adequate and likely to continue so
agricultural development will presently put an end to global food shortages
the conservation of land resources is of minor importance
E) every effort must be made to prevent the C02 level from rising
45. According to the passage, it is anticipated that .
food production will double in the future
the per capita income in Africa countries will continue to rise
the present situation concerning population growth and food production will soon improve
all the African countries will soon solve all their population problems
E) unless serious measures are taken, the poor countries of the world will be faced with famine
Senegal is heavily dependent on the export of crude oil to finance industrial development. 90% of Senegal's exports by value are crude oil. At current production rates, known reserves are only sufficient until the end of the century. Industrialization was boosted after 1973 following the fourfold increase in oil prices. In the early 1980s prices fell, and Senegal lost important income. Oil production peaked when it reached 112 million tones in 1974.
46. It is claimed in the passage that the sharp rise in oil prices in 1973
has less effect on Senegal's economy than might have been expected
contributed greatly to industrial development in Senegal
coincided with a considerable decrease in oil production
provided Senegal with a high revenue oil into the late 1980s
E) put a great deal of pressure on Senegal's oil reserves
47. It is inferred from the passage that only a fraction of Senegal's exports_______.
are goods other than crude oil.
would be needed to support industrial development
were affected by the decrease in oil prices in the 1980s.
E) have benefited from price increases.
48. According to the passage as long as the current rate of oil production is maintained______.
world oil prices are not expected to rise significantly.
Senegal's industrial development plans will soon be fully realised.
Senegal is likely to have no oil reserves left by the year 2000
Senegal will continue to enjoy large revenues
E) the variety of goods exported from Senegal will be more.
Computers should never have received the significant status they now have, Fascinating and invaluable as they are, even the most developed have less brain power than a three-year-old. They do, however, score on single mindedness. The three year old uses her brain not only to think but also to do some certain tasks like seeing hearing and running about, which need incredibly fast and sophisticated electro-mechanical interactions. But the computer just sits there and sends spacecraft to the moon or re-arranges the world banking system which is very much easier. That's why man's dream of robot maids is still a long way off.
49. The main point made by the passage is that the human brain .
is much inferior to any known computer
is infinitely more complex and powerful than any computer
is not as complicated and mysterious as has usually been thought
reaches its maximum efficiency at the age of three
E) has been entirely reproduced in computer form
50. It is explained in the passage that the efficiency of the computer_______
depend on the speed with which the data are collected
will soon make it possible for man to be served by robots
can best be appreciated in the decision-making positions
is the result of its being concentrated on one task at a time
E) depends on sophisticated electro-mechanical interactions
51. The author feels that Computers .
have contributed immensely to the improvement of living standards
are becoming unaffordable as they get more developed
have been unnecessarily overrated
will be a major force behind all future progress
E) are capable of doing all the tasks the human brain performs even more efficiently
Most substances, either artificial or natural, can cause harm to man or the environment. Some of these reach the environment in waste streams; however emission limits and environmental quality standards can, in some instances, reduce the amounts released. However, some other matters cannot be controlled in this way because they are released, not in industrial waste streams, but through the use or disposal products which contain them. In many cases these substances pose little or no threat if the product containing them is used and disposed of properly. The accurate way to deal with them is through controls over their supply, use and disposal
52. According to the passage, the threat of some certain substances to the environment _________.
is for less than that to man
could be reduced by enforcing emission limits and environmental controls
has been unnecessarily over emphasized
has to date been completely ignored
E) can be eliminated by the use of industrial waste streams
53. The author assumes that the danger posed to man by some substances________.
is even greater than generally admitted
is unrelated to environmental pollution
continues to grow despite constant control of disposal systems
is solely due to the use of industrial waste streams
E) arises from their misuse and wrong disposal
54. The passage is concerned with the question of .
how the harmful effects of certain substances can be kept under control
why industrial waste streams have led to so much pollution
what measures are to be taken against the supply of dangerous substances
if man-made substances and natural ones cause pollution
E) who is responsible for taking the required precautions
The cheetah, the only mammal in the world that can sprint at spee faster than 70 miles per hour, is on rapid track to extinction. Two factc threaten its existence. The first is lack of genetic variation, which manife; itself in reproductive problems excessive infant mortality and vulnerability disease. These seem to be exacerbated in captivity, where cheetahs i experiencing a precipitous decline in number. The second threat to t cheetah is loss of its natural habitat to agricultural expansion.
55. The cheetah is the only mammal in the world that .
threatens the nature
is in danger of extinction
no other animals can reach its speed
D). has a speed reaching more than 70 miles per hour
E) is thought to give harm to agricultural expansion
56. The cheetah is threatened by extinction because .
of its speed
they are experiencing a sudden decline in number
of reproductive problems
D) they live in captivity
E) of lack of genetic differentiation and agricultural growth
57. Reproductive problems illustrate .
that cheetahs don't have a variation in their genetic structure
that the amount of infant mortality is excessive
cheetah is threatened by extinction
cheetah's vulnerability to disease
E) loss of their natural habitat leads them to extinction
When it was formed millions years ago the earth was a liquid. It is s having the process of cooling and many miles below the hard crust is s hot. However, in some places the heat is closer to the crust. These places i associated with volcanic activity or hot sulphur springs. Drilling deep ir the earth's crust we can reach rocks that are much warmer than those at t. surface. Pumping water down into contact with these rocks and extracting tl steam so produced is a source of energy that can be used to produi electricity. It is called geothermal energy.
58. It is explained in the passage that under the hard surface of th earth, there________.
exists a hot core which can be used as energy
is a hot liquid layer which has never been drilled
seems to be a great deal of volcanic activity which threatens life
could be a number of hot sulphur springs, the main cause o: volcanic activity.
E) has never been sufficient heat to melt rocks
59. According to the passage, gjgothermal energy .
can be produced both plentifully and cheaply
has been used by man for millions of years
is a bi-product of extensive volcanic activity
is obtained from the contact of water with the hot rocks below the earth's surface
E) isrecognised as the only form of energy that will never be used up
60. We can inter from the passage that the earth's crust .
has completely stopped the process of cooling underneath
is a constant source of energy
is not suitable for drilling
is constantly warming and cooling due to volcanic activities,
E) varies in thickness from place to place
When we turn to the problem of fishing, we see that through a II Convention on the Law of the Sea, the world's countries have indicated th; they recognize the risks of over-fishing. Nations can now declare 200 mi! exclusive economic areas and exclusive fishing areas and control the catch , a level that is reasonable. Developing nations seem to be beginning to benel from the new fisheries regime which offers the promise of allowing them i manage fishing resources for optimum, that is long-term, benefits.
61. We can understand from the passage that the statutory measurt taken by the UN, regarding fishing,____ .
are unlikely to be abided by, at least not in the near future
have been welcomed by all the member nations
have had no beneficial impact on the situation
came into effect too late
E) have unfortunately served the interests of only the develops nations
62. One major benefit arising out of the 200-mile exclusive fishing zoi
is as we understand from the passage, to .
to supply best use of the marine resources through internation cooperation
keep under control the amount of fish caught
ensure that an ever increasing quantity of fish shall be caught
guide developing countries to develop their inefficient economic
E) prevent new fisheries from coming into being
63. It is stated in the passage that in the management of fisheries
one cannot make a plan for the future
no consideration should be given to the amount of fishing.
the introduction of restrictive measures should be avoided.
one should give importance to future rather than to present gain;
E) the 200-mile zone policy can be ignored.
When used for researches on of learning and memory, the octopus is a more interesting subject than the squid. Unlike the free-swimming squid, which relies exclusively on its eyes to guide it to a tasty fish or crab, the octopus often feeds off the bottom of the sea. It uses not only its eyes but its tentacles to identify a likely meal. The brain of the octopus has two separate memory-storage areas - one for visual memories and one for tactile memories.
64. In the passage it is stated that the squid finds its food__________.
by sight only
by touch only
both by sight and by touch
in none of the ways described above
E) digging holes
65. The passage is mainly about .
a new way of feeding fish
biological differences between two animals
how to go deep-sea fishing
a warning to deep-sea tlivers
E) the differences between biology and zoology
66. According to the passage, which of the following can describe the octopus?
Its brain is simpler than that of the squid.
It cannot look and touch at the same time.
Its brain does not function very well.
The memory of what it has seen and touched is contained in separate areas.
It is the unique animal in deep waters.
In order to produce commercial records, an original record must first made. It is a flat disc, usually made of aluminum coated with a soft layer lacquer. As the disc is rotated, a sapphire or ruby stylus cuts a continue groove in the lacquer cotang. The stylus travels around the disc, making impression that corresponds to the amplitude and frequency of the sou being recorded. When completed, the original may be played back to recre; the original recorded sound. If the sound produced by the original record satisfactory, the original is coated with silver to conduct electricity, and th electroplated with nickel. When the original is stripped away, a negative the original remains, with a raised spiral pattern corresponding to the groo\ in the original. The negative is called a master matrix. Next, the mas matrix is electroplated with nickel to produce a positive of the original. T positive is called a mother matrix. By electroplating the mother matrix w nickel and stripping it away, stampers are produced. Stampers are negath of the original record from which the final records may be pressed.
67. What is the purpose of silver in making commerical records?
It strips away the original record.
It cuts a groove in the original record.
It aids in electroplating the original record.
It makes an impression on the stamper.
E) It is very strong.
68. The mother matrix is a (n) .
negative of the original record
C) original record
D) record made from a master matrix
because it conducts electricity
because it can be cut by a stylus
because it cools quikly
because it protects the impression in the aluminum
E) because it is vey soft
The science of meteorology is deals with the study of the structure, state, and behavior of the atmoshere. The subject may be approached from several directions, but the scene cannot be fully appreciated from any one vantage point. Various views must be integrated to give perspective to the whole picture. One may consider the condition of the atmosphere at a given moment and attempt to predict changes from that condition over a period of a few days ahead. This approach is included in the branch of the science called synoptic meteorology. Synoptic meteorology is the scientific basis of the technique of weather forecasting by means of the preparation and analysis of weather rrnps and aerological diagrams. The practical importance of the numerous applications of weather forecasting cannot be overestimated. In serving the needs of shipping.aviation, agriculture, industry, and many other interests and fields of human activity with accurate weather warnings and professional forecast advice, great benefits are reaped in the form of the saving of human life and property and in economic advantages of various kinds. One significant purpose of the science of meteorology is constantly to strive, through advanced study and research, to increase bur knowledge of the atmosphere with the aim of improving the accuracy of weather forecasts.
70. The predictions of synoptic meterologists are directly based on the_____________.
application of the physical sciences
preparation and study of weather maps
anticipated needs of industry
observations of commercial airline pilots
E) behaviours of animals
71. The author implies that increased accuracy in weather forecasting will lead to________.
more funds allocated to meteorological research
greater protection of human life.
a higher number of professional forecasters
less-specialized form of synoptic meteorology
E) an increase in the number of tourists
72. Which of the following statements best describes the organization of the passage?
A procedure is explained and its importance is emphasized.
Two contrasting views of a problem are presented.
Recent scientific advancements are outlined in order of importance.
A problem is examined and possible solutions are given.
E) Contributions of weather forcast to human activities concerning agriculture are stated.
Besides feeling the soil and sniffing the air, farmers can now point gun shaped infrared meters at their crops in order to discover when the plant; need watering. These portable meters give digital readouts that indicate th< difference between a plant's temperature and that of the surrounding air When it is short of water, a plant, which normally uses evaporation as ; means of cooling, cannot rid itself of the heat it absorbs from sunlight on the heat that may build up from its own metabolism. Hence, if the mete: indicates that a plant is warmer than the air, it may mean that it is time tc irrigate.
73. Which of the following would be the most appropriate title for the passage?
A New Aid for Farmers
Checking Crop Yields
Plant Temperatures and Evaporation
The Metabolism of Plants
E) Farming in the new Millennium
74. According to the passage, farmers feel the soil in order to__________.
check its ability to absorb heat ;
determine its mineral content
check the moisture content of the air
determine the time to water crops
E) detect some creatures
75. According to the passage, what do the meters measure?
The quality of crops being grown
The temperatures of plants and air
The water content of plants
The rate of evaprotation
E) The hight of plants
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