第二节：完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握大意，然后从16-35各题所给的A、B、C、D四个选项中，选出最佳选项。
The history of modern water pollution goes 16 to February 28, 1931, when Mrs. Murphy 17 over her backyard fence and said to Mrs. Holbrook, “You 18 those shirts white?” Mrs. Holbroak was 19 to admit they were as white as she could get them 20 that ordinary soap.
“What you should use is this Formula Cake Soap which 21 against the dull grey look that the family wash 22 had. ”
Doubtful 23 adventurous, Mrs. Holbrook tried the Formula soap, 24 did take the grey out of her husband’s shirts. But what she didn’t know was that the water eventually was 25 into the Blue Sky River, killing two fish.
Three years later Mrs. Murphy was 26 her shirts and Mrs. Holbrook said, “How did you ever get your collars so 27 , surely not with Formula?”
“Not ordinary Formula. But I did with Super Fortified Formula. You see, it attacks dirt and destroys it. Here, try some 28 your shirts.”
Mrs. Holbrook 29 and discovered her husband’s shirt collars turned pure white. What she could not possibly know was that it turned the river water pure white as 30 .
Six months later, the Blue Sky River was 31 a health hazard. One day as Mr. Holbrook was walking home from work.，he accidentally 32 the Blue Sky River, swallowed a 33 of water and died immediately. At the funeral service the minister said, “You can say anything you want 34 Holbrook, but no one can deny he had the 35 shirts in town.”
16. A. straight B. down C. off D. back
17. A. 1eaned B. 1eapt C. stretched D. sloped
18. A. name B. make C. get D. call
19. A. shamed B. ashamed C. shameful D. shameless
20. A. without B. with C. from D. by
21. A. protects B. promises C. guarantees D. ensures
22. A. seldom B. never C. possibly D. always
23. A. but B. and C. or D. though
24. A. it B. she C. which D. that
25. A. left B. emptied C. reached D. rushed
26. A. hanging up B. hanging on C. putting up D. putting on
27. A. dirty B. soapy C. grey D. white
28. A. for B. to C. on D. at
29. A. refused B. did C. hesitated D. understood
30. A. snow B. expected C. usual D. well
31. A. stated B. published C. recognized D. declared
32. A. fell into B. swam C. crossed over D. drowned
33. A. mouthful B. drop C. glass D. drink
34. A. to B. about C. as to D. as for
35. A. best B. oldest C. cleanest D. dirtiest
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