二. 完形填空(每小题1分，共10分)

先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

About 230 years ago, some rats (老鼠) got to Hawadax Island and they killed the birds on the island. Now thanks to several years of hard work, “Rat Island” as it had been   1   for many years, has been returned to its real owners —   2  !

The rats arrived at Hawadax Island before 1780 when a Japanese   3   carrying them broke down at sea nearby. They killed the birds on the island   4   the environment of the island was not built to save its birds from the rats. There were   5   trees on the island and the birds were used to building their homes on the ground. That gave the rats   6   to eat the eggs and baby chicks.

In 2007, the U.S. Fish and Wildlife Service started a(n)   7   to make the rats stay away from the island and try to bring back the beautiful birds. There were a large number of rats living on the “Rat Island”, so it was a(n)   8   job. But in 2009, there were no more rats on the island!5

Then slowly but surely, the birds began to   9 . Sadly, some of the birds were killed by the rat poison (毒药) that had been used to   10   the rats. But now it seems that things are becoming better and better and the island is starting to look like its former (以前的) self.

(  )1. A. called            B. made          C. taken                 D. used

(  )2. A. rats           B. birds           C. fish              D. humans

(  )3. A. car                B. train           C. bus              D. ship

(  )4. A. if             B. because          C. although        D. unless

(  )5. A. many            B. some          C. no                     D. more

(  )6. A. chances        B. time          C. hope                   D. methods

(  )7. A. idea           B. action        C. factory           D. industry

(  )8. A. easy              B. hard           C. interesting       D. boring

(  )9. A. sing             B. fly                 C. return                 D. leave

(  )10. A. find           B. help         C. study                   D. kill