问题补充：
三、完形填空：（共20小题；每小题1分，满分20分）
One day a mother rat and her babies were out in an open field. They were playing and having a good time when 21 a hungry cat came on the scene! It hid 22 a big tree and then 23 forward through tall grass 24 it could almost hear them talk. 25 the mother rat and her babies knew 26 had happened, the cat 27 from its hiding-place and started to run 28 them.
The mother rat and her babies all 29 at once. They hurried towards 30 home, which was under a pile of large stones. 31 the baby rats were 32 scared that they could not run very 33. Closer and closer the cat came. In no time the cat could catch 34. What was to be done?
The mother rat stopped running, 35 round and faced the cat, 36, “Wow! Wow! Wow-wow!” just like 37 angry dog. The cat was so surprised and 38 that it ran away.
The mother rat turned to her babies, “Now you see 39 important it is to learn 40 second language!”
21. A. naturally B. suddenly C. nearly D. certainly
22. A. or B. between C. by D. behind
23. A. crawled B. jumped C. looked D. climbed
24. A. before B. when C. until D. while
25. A. Before B. After C. Unless D. Otherwise
26. A. where B. what C. which D. when
27. A. jumped B. started C. walked D. appeared
28. A. over B. through C. afterD. against
29. A. stood B. fled C. left D. cried
30. A. to B. for C. its D. their
31. A. Because B. But C. Therefore D. Although
32. A. as B. much C. so D. very
33. A. freely B. hardly C. soon D. quickly
34. A. ahead B. down C. that D. them
35. A. turnedB. walked C. jumped D. ran
36. A. saying B. speaking C. shouting D. telling
37. A. a B. an C. their D. that
38. A. pleased B. excited C. frightened D. worried
39. A. so B. why C. what D. how
40. A. our B. their C. a D. An21---40 BDACA BACBD BCDAA CBCDC
答案：
(答案→)21---40 BDACA BACBD BCDAA CBCDC
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三 完形填空：（共20小题；每小题1分 满分20分）One day a mother rat and her babies were out in an open field. T
