2017托福100篇阅读理解试题（四十一）_第2页

　　7. It can be inferred from the passage that the appearance of alternating bands circling Jupiter is caused by

　　(A) the Great Red Spot

　　(B) heat from the Sun

　　(C) the planet's fast rotation

　　(D) Storms from the planet's Southern Hemisphere

　　8. The author uses the word "puzzling" in line 17 to suggest that the Great Red Spot is

　　(A) the only spot of its kind

　　(B) not well understood

　　(C) among the largest of such spots

　　(D) a problem for the planet's continued existence

　　9. Paragraph 3 supports which of the following conclusions?

　　(A) Jupiter gives off twice as much heat as the Sun.

　　(B) Jupiter has a weaker gravitational force than the other planets.

　　(C) Scientists believe that Jupiter was once a star.

　　(D) Scientists might learn about the beginning of the Solar System by Studying Jupiter.

　　10. Why does the author mention primeval heat (lines 21)?

　　(A) To provide evidence that Jupiter is older than the Sun

　　(B) To provide evidence that Jupiter is older than the other planets

　　(C) To suggest a possible explanation for the number of satellites that Jupiter has

　　(D) To suggest a possible source of the quantity of heat that Jupiter gives off

　　11. According to the passage , Jupiter's most distant moon is

　　(A) the least dense

　　(B) the largest

　　(C) warm on the surface

　　(D) very rocky on the surface

　　12. Which of the following statements is supported by the passage ?

　　(A) If Jupiter had fewer satellites, it would be easier for scientists to study the planet itself.

　　(B) If Jupiter had had more mass, it would have developed internal nuclear reactions.

　　(C) If Jupiter had been smaller, it would have become a terrestrial planet.

　　(D) if Jupiter were larger, it would give off much less heat

　　参考答案：DABDD ACBDD AB