3. A chimpanzee’s use of tools means ____.

　　A. animals are the same as human beings

　　B. animals can be as clever as human beings

　　C. the dividing line between culture and animal culture no longer exists

　　D. animals may have a culture like our own

　　4. Which of the following statement is true?____.

　　A. The ability to use language separates human beings

　　B. We can be certain that animals have a culture too

　　C. Social scientists doubt if animals have a culture too

　　D. Some traditional ideas about the difference between human beings and animals may be wrong

　　5.The first sentence of the second paragraph “Our culture lets 7us make up for having lost our strength, claws, long teeth, and other defenses “ means ____.

　　A. as a result of our culture, we have lost our strength, claws, long teeth, and other defenses

　　B. our culture has enabled us even better though we have lost our strength, claws, long teeth, and other defenses

　　C. our culture has brought back to us strength, claws, long teeth, and other defenses that we have lost

　　D.our culture asks that we lose our strength, claws, long teeth, and other defenses which animals still have

　　The key :

　　10. D B D D B