单选题From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 1 , they were like newborn children, unable to use this 2 tool. Yet once language developed, the possibilities for human kind"s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 that our highly evolved brain provides us with a(n) 6 language ability not found in lower organisms. Supporters of this innateness theory say that our 7 for language is inborn, but that language itself develops gradually, as a function of the growth of the brain during childhood. Therefore there are critical 8 times for language development. Current 9 of innateness theory are mixed; however, evidence 10 the existence of some innate abilities is undeniable. Indeed, more and more schools are discovering that foreign languages are best taught in 11 grades. Young children often can learn several languages by being 12 to them, while adults have a much 13 time learning another language once the rules of their first language have become firmly fixed. 14 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 15 from other human beings do not possess language. This demonstrates that 16 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 17 than any innate capacities. These theorists view language 18 imitative, learned behavior. 19 , children learn language from their parents by imitating them. Parents gradually shape their child"s language skills by 20 reinforcing precise imitations and negatively reinforcing imprecise ones.

单选题Ice and water are the same ______ in different forms.

单选题The chief function of unmailed advertising is ______.

单选题In that book, the ______ , songs, and riddles are presented in Chinese and English and handsomely illustrated by Ed Young.

单选题The author of the passage probably views the Parthenon with ______.

单选题Recent studies have {{U}}identified{{/U}} four major global environmental risks: acid rain, ozone depletion, deforestation and the greenhouse effect.

单选题The area is______with trails, some as wide as boulevards, that have been cut and maintained by elephants.

单选题Instead of telling it like it is, we're learning to present things in a more temperate way.

单选题Some of these online services are free, while other______a charge. A. carry B. cashier C. coincide D. collect

单选题Comparison and contrast are often used ______ in advertisements. A. intentionally B. pertinently C. incidentally D. tiresomely

单选题Other non-dominant males were Uhyperactive/U; they were much more active than is normal, chasing others and fighting each other.

单选题The most ______ technological success in the twentieth century is probably the computer revolution. A. prominent B. prosperous C. solemn D. prevalent

单选题Which of the following statements could most logically follow the last sentence of the passage?

单选题 Top athletes scrutinize both success and failure with their coach to extract lessons from them, but they are never distracted from long-term goals.

单选题Recently a number of eases have been reported of young children ______ a violent act previously seen on television.

单选题In international banking today, a bank must have a deep______into international financial markets. A. idea B. understanding C. knowledge D. insight

单选题 Some psychologists maintain that mental acts such as thinking are not performed in the brain alone, but that one's muscles also participate. It may be said that we think with our muscles in somewhat the same way that we listen to music with our bodies. You surely are not surprised to be told that you usually listen to music not only with your ears but with your whole body. Few people can listen to music that is more or less familiar without moving their body or, more specifically, some part of their body. Often when one listens to a symphonic concert on the radio, he is tempted to direct the orchestra even though he knows there is a competent conductor on the job. Strange as this behavior may be, there is a very good reason for it. One cannot derive all possible enjoyment from music unless he participates, so to speak, in its performance. Tile listener "feels" himself into the music with more or less pronounced motions of his body. The muscles of the body actually participate in the mental process of thinking in the same way, but this participation is less obvious because it is less pronounced.

单选题Edmund likes to drive at a speed______the traffic limit. I wonder how he always manages to escape A. having exceeded, to be fined B. exceeded, having been fined C. to exceed, to fine D. exceeding, being fined