Some things we know about language

　　Many things about language are a mystery, and many will always remain SO．But somethings we do know．来源：考试大
　　First，we know that all human beings have a language of some sort．There is no race of men anywhere on earth so backward that it has no language，no set of speech sounds by which the people communicate with one mother．　Furthermore，in historical times，there has never been a race of men without a language．    来源：考试大
　　Second，there is no such thing as a primitive language．There are many people whose cultures are undeveloped，who are，as we say，uncivilized, but the languages they speak are not primitive．In all known 1anguages we can see complexities that must have been tens of thousands of years in developing．
　　This has not always been well understood；indeed, the direct contrary has often been stated．Popular ideas of the 1anguage of the American Indians will illustrate．Many people have supposed that the Indians communicated in a very primitive system of noises．Study has proved this to be nonsense．There are，or were，hundreds of American Indian languages，and a11 of them turn out to be very complicated and very old. They are certainly different from the languages that most of us are familiar with，but they are no more primitive five than English and Greek．来源：考试大
　　A third thing we know about language is that all languages are perfectly adequate．That is, each one is a perfect means of expressing the culture of the people who speak the language．
　　Finally, we know that language changes．It is natural and normal for language to change；the only languages which do not change are the dead ones．This is easy to understand if we look backward in time．Change goes on in all aspects of language．Grammatical features change as do speech sounds，and changes in vocabulary are sometimes very extensive and may occur very rapidly．Vocabulary is the least stable part of any language．

词汇：来源：考试大
race／n．种族
primitive／adj．原始的
uncivilized／adj．不开化的，落后的
complexity／n．复杂性，复杂现象来源：考试大
nonsense／n．胡说，没有根据的话
extensive／adj．广泛的来源：考试大
vocabulary／n．词汇

练习：来源：考试大
1． In the second paragraph the author thinks that
  A)some backward race doesn’t have a language of its own．
  B)some race in history didn’t possess a language of its own．
  C)any human race，whether backward or not，has a language．
  D)some races on earth call communicate without language．来源：考试大

2． According to the author, people of undeveloped cultures can have___ languages.
  A)complicated
  B)uncivilized
  C)primitive
  D)well—known来源：考试大

3．The author has used American Indian languages as an example to show that they are
  A)just as old as some well-known languages．
  B)just as sophisticated as some well-known languages．
  C)more developed than some well-known languages．
  D)more complex than some well-known languages．

4. Which of the following statements is INCORRECT?
  A)A language is a means of expressing a particular culture．
  B)All languages can well express their respective cultures．
  C)American Indian languages are as sophisticated as English．
  D)Some languages are better than other languages．来源：考试大

5． According to the author, language changes are most likely to occur in
  A)grammar．
  B)pronunciation．
  C)vocabulary．来源：考试大
  D)intonation．