2017托福100篇阅读理解试题（十二）_第4页

　　6. Superheated fireballs were produced as soon as the fragments of comet Shoemaker- Levy 9

　　(A) hit the surface of Jupiter

　　(B) were pulled into Jupiter's orbit

　　(C) were ejected back through the tunnel

　　(D) entered the atmosphere of Jupiter

　　7. The phrase "incinerated itself" in line 9 is closest in meaning to

　　(A) burned up

　　(B) broke into smaller pieces

　　(C) increased its speed

　　(D) grew in size

　　8. Which of the following is mentioned as evidence of the explosions that is still visible on Jupiter?

　　(A) fireballs

　　(B) ice masses

　　(C) black marks

　　(D) tunnels

　　9. Paragraph 2 discusses the impact of the comet Shoemaker-Levy 9 primarily in terms of

　　(A) its importance as an event of great scientific significance

　　(B) its effect on public awareness of the possibility of damage to Earth

　　(C) the changes it made to the surface of Jupiter

　　(D) the effect it had on television broadcasting

　　10. The "target" in line 20 most probably referred to

　　(A) Earth

　　(B) Jupiter

　　(C) the solar system

　　(D) a comet

　　参考答案：ADDBC DACBA