The author compares the effect of airliners on the environment and that of the cars and co
A.Y
B.N
C.NG
A.Y
B.N
C.NG
The author compares the formation of glaciers to______.
A.the gradual transformation of snow flakes
B.the formation of crystals
C.the long gestation of a baby
D.the formation of air bubbles
The author compares John Moodys use of a go-kart engine on a hang glider to
A.a marriage
B.the flight of Icarus
C.cruising in a snowmobile
D.soaring and gliding from a high altitude
The author compares meat eating to cigarette smoking because ______.
A.cigarette smoking and meat eating are all personal habits
B.meat eating and cigarette smoking can lead to some disease like lung cancer
C.both meat eating and cigarette smoking cost a lot of economic and social resources
D.eating meat can be expensive if people like to smoke at the same time
A.researchers generally prove whatever they want
B.research design and procedure may invalidate the findings
C.The Correlates of War' project is notorious for its faulty research techniques
D.the preliminary findings of The Correlates of War" project are invalid
A.flightiness
B.love of freedom
C.eminence
D.sense of spirituality
E.mercilessness
If water is not pumped to the top of a tall tree, and if it is not pushed to the top of a tall tree, then we may ask.. How does it get there? According to the currently accepted cohesion-tension theory, water is pulled there. The pull on a rising column of water in a plant results form. the evaporation of water at the top of the plant. As water is lost form. the surface of the leaves, a negative pressure, or tension, is created. The evaporated water is replaced by water moving from inside the plant in unbroken columns that extend from the top of a plant to its roots. The same forces that create surface tension in any sample of water are responsible for the maintenance of these unbroken columns of water. When water is confined in tubes of very small bore, the forces of cohesion(the attraction between water molecules)are so great that the strength of a column of water compares with the strength of a steel wire of the same diameter. This cohesive strength permits columns of water to be pulled to great heights without being broken.
How many theories does the author mention?
A.One
B.Two
C.Three
D.Four
Bill Gates compares his hard work on a PC to "tap dancing to work".
A.Right
B.Wrong
C.Not mentioned
Bill Gates compares his hard work on a PC to "tap-dancing to work" .
A. Right
B. Wrong
C. Not mentioned
The speaker compares the Internet to
A.a map.
B.cities.
C.towns.
D.roads.
Writing, as recognized by most people, is genuinely formal and readily tangible, but speaking language has merits of its own. It is usually more economic in human face-to-face communication, and it allows the omission of many contextual or commonsensical information. This permits the oral language to be more simplistic and flexible than written language. What is difficult or even impossible to achieve in written language can sometimes be achieved in oral language in a convenient way that does not demand extra efforts. On the other hand, speech can be more difficult to manage in linguistic studies due to such factors that make it readily acceptable as a more economic way of expression.
It is in spontaneous, operational speech that the grammar is most fully exploited, such that its semantic frontiers expand and its potential for meaning is enhanced. This is why we have to look to spoken discourse for at least some of the evidence on which to base our theory of the language. Philosophers of language have tended to take over the folk belief, typical of a written culture, according to which spoken language is disorganized and featureless, while only writing shows a wealth of structure and purity of pattern. This is 'demonstrated' by transcriptions in which speech is reduced to writing and made to look like a dog' s dinner. Now speech was not meant to be written down, so it often looks silly, just as writing often sounds silly when it is read aloud; but the disorder and fragmentation are a feature of the way it is transcribed. Even a sympathetic transcription like that above cannot represent it adequately, because it shows none of the intonation or variation in tempo and loudness; but it does show the way it is organized grammatically, and so enable us to analyze it as a text.
The author compares spoken language to "a dance" to say that ______ .
A.it is changeable and flexible
B.it is rigid and simple
C.it is lively and pleasant
D.it is easy to learn