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 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually, 9 a function of the growth of the brain during childhood. Therefore there are critical 10 times for language development.
Current 11 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed.
16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child's language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.

A:exposition B:comparison C:contrast D:interaction

As pointed out in the passage, the exposition of the structure and texture of a flower is a good example of

A:sensitivity. B:obscurity. C:preciseness. D:deviation.

The World Exposition Center ______ by the end of 2010, will attract over 70 million people.

A:completed B:being completed C:to be completed D:having been completed

Despite his ______ planning, the exposition turned out to be a failure.

A:exquisite B:exhausted C:elaborate D:insufficient

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 (16) , they were like newborn children, unable to use this (17) tool. Yet once language developed, the possibilities for humankind’s future (18) and cultural growth increased. Many linguists believe that evolution is (19) for our ability to produce and use language. They (20) that our highly evolved brain provides us (21) an innate language ability not found in lower (22) . Proponents of this innateness theory say that our (23) for language is inborn, but that language itself develops gradually, (24) a function of the growth of the brain during childhood. Therefore, there are critical (25) times for language development.
Current (26) of the innateness theory are mixed ; however, evidence supporting the existence of some innate abilities is undeniable. (27) , more and more schools are discovering that foreign languages are best taught in (28) grades. Young children often can learn several languages by being (29) to them, while adults have a much harder time learning another language once the (30) of their first language have become firmly fixed.
(31) some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been (32) from other human beings do not possess language. This demonstrates that (33) with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language (34) than any innate capacities. These theorists view language as imitative, learned behavior. (35) , children learn language from their parents by imitating them. Parents gradually shape their child’s language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.
Ⅱ．完形填空/Cloze
阅读下列短文，掌握其大意，然后从每小题所给的四个选项A、B、C、D中，选出最佳选项。

A:exposition B:comparison C:contrast D:interaction

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 humankind’ s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 thatour highly evolved brain provides us 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually,9 a function of the growth of the brain during childhood. Therefore, there are critical 10 times for language development. Current 11 of the innateness theory are mixed; however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed. 16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child’ s language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.

A:exposition B:comparison C:contrast D:interaction

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 humankind’ s future 3 and cultural growth increased. Many linguists believe that evolution is 4 for our ability to produce and use language. They 5 thatour highly evolved brain provides us 6 an innate language ability not found in lower 7 . Proponents of this innateness theory say that our 8 for language is inborn, but that language itself develops gradually,9 a function of the growth of the brain during childhood. Therefore, there are critical 10 times for language development. Current 11 of the innateness theory are mixed; however, evidence supporting the existence of some innate abilities is undeniable. 12 , more and more schools are discovering that foreign languages are best taught in 13 grades. Young children often can learn several languages by being 14 to them, while adults have a much harder time learning another language once the 15 of their first language have become firmly fixed. 16 some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been 17 from other human beings do not possess language. This demonstrates that 18 with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language 19 than any innate capacities. These theorists view language as imitative, learned behavior. 20 , children learn language from their parents by imitating them. Parents gradually shape their child’ s language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.

A:exposition B:comparison C:contrast D:interaction

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 (16) , they were like newborn children, unable to use this (17) tool. Yet once language developed, the possibilities for humankind’s future (18) and cultural growth increased. Many linguists believe that evolution is (19) for our ability to produce and use language. They (20) that our highly evolved brain provides us (21) an innate language ability not found in lower (22) . Proponents of this innateness theory say that our (23) for language is inborn, but that language itself develops gradually, (24) a function of the growth of the brain during childhood. Therefore, there are critical (25) times for language development.
Current (26) of the innateness theory are mixed ; however, evidence supporting the existence of some innate abilities is undeniable. (27) , more and more schools are discovering that foreign languages are best taught in (28) grades. Young children often can learn several languages by being (29) to them, while adults have a much harder time learning another language once the (30) of their first language have become firmly fixed.
(31) some aspects of language are undeniably innate, language does not develop automatically in a vacuum. Children who have been (32) from other human beings do not possess language. This demonstrates that (33) with other human beings is necessary for proper language development. Some linguists believe that this is even more basic to human language (34) than any innate capacities. These theorists view language as imitative, learned behavior. (35) , children learn language from their parents by imitating them. Parents gradually shape their child’s language skills by positively reinforcing precise imitations and negatively reinforcing imprecise ones.
Ⅱ．完形填空/Cloze
阅读下列短文，掌握其大意，然后从每小题所给的四个选项A、B、C、D中，选出最佳选项。

A:exposition B:comparison C:contrast D:interaction