5.. People began to buy jeans for fashion beside for work ______.

A. in the 1900s　　 B. in 1930　　

C. in the 1930s　　 D. in the 1920s

3. ______volunteers are mentioned in the text.

A. One　　 B. Two　　 C. Three　　 D. Four

4The idea of blue trousers called jeans came from ______.

A. Europe　　 B. Two　　 C. Three　　 D. Four

1.Volunteers refer to ______.

A .people who are willing to help others

B. people ho devote their time to helping others

C. people who donate their time to help to others

D. all of the above

2 Volunteer do voluntary work in order to ______.

A. make a money　　 B. make a contribution to society

C. kill time　　　　　 D. become healthy

9. Karl Von Frisch made an experiment to research ______

A. the food of honeybees　　　　　　　 B. the dance of honeybees

C. the ways honeybees communicates　　 D. the hive of honeybees　

8. You can find the main idea of the test simply from _____

A. the title　　 B. the first paragraph　　

C. the second paragraph　　 D. the last paragraph

7. The number of the wagging dances per minute told _____

A. the position of the feeding place　　　 B. the amount of the food

C. the distance of the feeding pace　　　　 D. all the information

5. The phrase “ come to light” in Paragraph 5 means _______.

A. become known　　 B. come to a bright place　　

C. turn bright　　 D. both A and B

6 The circle dances told the bees about ______

A. the position of the feeding place　 B. the distance of the feeding pace

C. the amount of the food　　　　　 D. all the information about food

4.Different dances indict different______.

A. food　　 B. feeding place　　 C. steps　　 D. semicircle

3. After the marked bees danced, the other bees ______.

A. danced together　　 B. became very excited　　

C. seemed not to noticed it　 D. both A and B.