[单项选择]All our attempts to ______the child from drowning were in vain.
A. regain
B. recover
C. reserve
D. rescue

[单项选择]All our attempts to ______the child from drowning were in vain.
A. regain
B. recover
C. reserve
D. rescue

[填空题]From the child to old age, we all use language as a means of (36) our knowledge of ourselves and the world around us. When humans first (37) , they were like newborn children, unable to use this valuable tool. Yet once language developed, the (38) for human’s kind’s future attainment and cultural growth increased.
Many linguists believe that evolution is (39) for our ability to produce and use language. They (40) that our high evolved brain provides us with an innate language ability not found in lower organism. Proponents of this innateness theory say that our potential for language is (41) , but that language itself develops (42) , as a function of the growth of the brain during childhood. Therefore there are critical biological times for language development.
Current reviews of innateness theory are mixed, however, evidence supporting the (43) of some innate abilities is undeniable.