Q 1-4
1. What is the main topic of the talk?
D. The realism of Millet's work
5. What is the teacher mainly discussing?
B. Volcanoes and the geology of Mars
9. What is the purpose of the talk?
D. To explain why we need Vitamin D and how to get enough of it
13. What is the teacher mainly talking about?
C. The disappearance of the Maya
17. What is the purpose of the talk?
A. To explain why the opal is special
2. How did Millet show the beauty of workers in his paintings?
D. By painting wonderful skies and landscapes in the background
6. Why does the teacher mention Earth?
D. To contrast volcanoes on Mars with those on Earth
10. According to the teacher, how does vitamin D help keep bones healthy?
C. It ensures that the body has enough calcium and phosphorous
14. How do scientists know that the Mayan civilization was advanced?
A. Mayan ruins have been explored
18. According to the teacher, why is the opal very special?
3. Why did some people not like Millet's paintings?
C. Poor people were not respected at the time
7. According to the talk, how is Mars today different than it was long ago?
A. It has no active volcanoes today
11. Why does the teacher mention cancers and serious disease?
B. To explain that vitamin D may protect people from them
15. According to the teacher, why did the Maya start cutting down forests?
D. To make more farmland
19. Why does the teacher mention Ancient Rome?
D. To emphasize that the opal has been loved for a long time
Why does the teacher mention Vincent can Gogh?
B. To emphasize that Millet's work became ell respected
8. According to the teacher, how did volcanoes on Mars become large
C. Lava poured out from them for long periods of time
12. Why do many people who live in colder climates not get enough vitamin D?
A. They do not get enough direct sunlight
16. Why were the Maya always fighting with each other?
D. Some cities were old enemies.
20. Why did many people change their minds about opals in the nineteenth century?
C. People read a famous novel that said opals were bad