1.Before people found stone objects and animal bones in the north of European Russia, some experts thought human beings lived in that area about
A.30 thousand years ago
B.20 thousand years ago
C.28 thousand years ago
D.15 thousand years ago
2.The following statements are true concerning the significance of the finding EXCEPT that
A.it brings forwards the time in which ancient hunters lived in that area
B.it provides the evidence of a high level of ancient human society
C.it showed the unexpected ability of the early humans
D.it indicates the effect of climate on the movement of early human population
3.Which is the most important discovery among the findings
A.A long elephant tusk.
B.Ancient stone tools.
C.123 bones from animals.
D.mammoth tusk covered with small cuts
4.How old is the tusk? About years old
A.25 thousand
B.28 thousand
C.36 thousand
D.40 thousand
5.What did the ancient people need to survive in the extremely cold environment
A.the ability to do the unexpected
B.a high level of social development
C.thick clothes
D.small animals to feed on