川师大断头案现场图片:英语完形填空

How does it happen that children learn their mother 76 so well? Let us compare them 77 adults learning a foreign language, for the comparison is both interesting and instructive. Here we have a little 78 , without knowledge or experience; there a 79 person with fully developed mental powers. Here a method of teaching without planning; there the whole task laid out in a system. Here no professional teachers, 80 parents, brothers and sisters, playmates; there teachers specially trained to 81 languages. Here only 82 instruction; there not only that, but textbooks, dictionaries and visual 83 . And yet this is the result: here a complete mystery of the 84 , however stupid the children; there in most cases, even with people otherwise highly gifted, a faulty and inexact command. Why is there such a 85 ?

76. A. speech B. words C. tongue D. language
77. A. to B. with C. by D. as
78. A. girl B. thing C. boy D. child
79. A. grown-up B. old C. man D. adult
80. A. except B. but C. for D. however
81. A. give B. teach C. learn D. use
82. A. written B. formal C. some D. oral
83. A. means B. help C. aids D. advice
84. A. result B. learning C. study D. language
85. A. difference B. result C. change D. effect