填空题

We use language every day and we live in a world of words. Hardly any
moment passes with someone talking, writing or reading. Indeed, 41. ______
languages is most essential to mankind. Our lives increasingly depend
on fast and successful use of language. Strangely enough, we know 42. ______
more about things around us than on ourselves. For example, language 43. ______
is species specific, that is, it is language that differs human from 44. ______
animals. However, we do not know yet how exactly we inquire language 45. ______
and how it is possible for us to perceive through language; nor we 46. ______
understand precise the relationships between language and thought, 47. ______
language and logic, or language and culture; still less, how and when
language started. One reason for this inadequate knowledge of language
is that we, like language users, take too many things for granted. 48. ______
Language comes to every normal person so naturally that a few 49. ______
of us stop to question what language is, much less do we feel the
necessity to study it. Language is far more complex than most people
have probably imagined and the necessity to study it is far greater than
some people may have assured. Linguistics is a branch of science which 50. ______
takes language as its object of investigation.