We have met the enemy, and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually found in the African rain forest, suddenly turns up in children in the American Midwest, it’s hard not to wonder if the disease that comes from foreign animals is homing in on human beings. “Most of the infections (感染) we think of as human infections started in other animals,” says Stephen Morse, director of the Center for Public Health Preparedness at Columbia University. It’s not just that we’re going to where the animals are; we’re also bringing them closer to us. Popular foreign pets have brought a whole new disease to this country. A strange illness killed Isakson’s pets and she now thinks that keeping foreign pets is a bad idea. “ I don’t think it’s fair to have them as pets when we have such a limited knowledge of them, “says Isakson.

“Laws allowing these animals to be brought in from deep forest areas without stricter control need changing,” says Peter Schantz. Monkey-pox may be the wake-up call. Researchers believe infected animals may infect their owners. We know very little about these new diseases. A new bug（病毒）may be kind at first. But it may develop into something harmful. Monkey-pox doesn’t look a major infectious disease. But it is not impossible to pass the disease from person to person

60. We learn from Paragraph 1 that the per sold at the shop may ________.

  A. come from Columbia                B. prevent us from being infected

C. enjoy being with children             D. suffer from monkey-pox 

61. Why did Isakson advise people not to have foreign pets?

A. They attack human beings.            B. We need to study native animals.

C. They can’t live out of the rain forest.    D. We do not know much about them yet

62. What does the phrase “the wake-up call” in paragraph 3 most probably mean?

A. a new disease    B. a clear warning    C. a dangerous animal    D. a morning call

63. The text suggests that in the future we _______.

A. may have to fight against more new diseases

B. may easily get infected by diseases from dogs

C. should not be allowed to have pets

D. should stop buying pests from Africa

. For fear that others would hear her, she ______ the news to me.

A. announced                B. passed                          C. described         D. whispered

---Your sister nearly _______ all her spare time to her study during the three years.

----That's right， or she ________ the first place in her school in the College Entrance Examination.

A. devoted; wouldn't have taken             B. spent; wouldn't have taken

C. had devoted; hadn't taken                D. had spent; couldn't take

----She must have gone back to the valley.

   ----No, she _____. The entrance to it was nowhere to be found.

   A mustn’t     B needn’t   C couldn’t   D hadn’t