第二节：完形填空（共20小题；每小题1.分，满分20分）
Every August on the island of Heimaey, off the southern coast of Iceland, young people often take a walk along the streets throughout the night. What’s more, their parents allow them to    16   .Why? The children of Heimaey are going to  17  young puffins—small black-and-white seabirds.
The cliffs(悬崖)above the town are    18    to a large group of puffins. The birds dig holes all around the cliffs. These holes are their homes. Their    19   stay in the holes for about seven weeks. Then they begin to leave. Some move slowly on their    20    wings and feet down to the northern Atlantic Ocean that surrounds Heimaey.  21   , they swim, which they can do naturally, and learn to dive for fish.   22   , however, may lose their way at night and    23    themselves in the town instead. On the ground, the young seabirds are    24   . Because their wings are not fully developed, they cannot    25    quickly to sea and safely. The birds then become a good    26    for cats and other animals. For many years, islanders have    27    many young puffins. Early at night in late August, children    28    thick paper boxes and lights hurry to the seashore to catch puffins. They spend most of the night    29   after the birds. They put the birds they’ve caught in   30    and take good care of them. The next morning the children take the puffins to the ocean and set them    31   . The birds will live    32    until they are at least two years old. Then they will    33    to the cliffs to build homes of their own for their families.
34    the children of Heimaey always come to save puffins? “Yes,” answer the boys. “We look forward to it. The    35    time for us is setting the birds free.”
16. A. take a walk    B. stay out      C. come back      D. make friends
17. A. kill              B. watch         C. catch            D. save
18. A. home          B. close       C. dangerous      D. falling
19. A. brothers        B. friends           C. parents           D. young
20. A. undeveloped     B. strong        C. beautiful      D. ugly
21. A. However         B. There          C. Therefore    D. Again
22. A. These          B. Those          C. Others           D. Puffins
23. A. make               B. send          C. bring       D. find
24. A. at ease         B. in trouble    C. at rest        D. in safety
25. A. take off        B. give off      C. send off       D. run off
26. A. friend          B. toy          C. meal               D. game
27. A. caught         B. eaten      C. helped         D. observed
28. A. making          B. buying        C. tearing        D. carrying
29. A. running         B. walking       C. playing        D. flying
30. A. water         B. pockets      C. paper            D. boxes
31. A. off         B. free            C. out                 D. away
32. A. on land       B. at sea          C. in cliffs     D. in town
33. A. stick         B. devote            C. return    D. fall
34. A. Will          B. Man             C. Must           D. Did
35. A. first         B. last            C. next        D. best