单项选择题：汽车排放的污染物中，能形成“酸雨”，造成水和土壤酸化的物质是（）。A、COB、HCC

题型：单项选择题

完形填空 (共10小题; 每小题2分, 满分20分)

阅读下面短文，掌握其大意，然后从21-30各题所给的A、B、C和D项中，选出最佳选项, 并在答题卷上将该项涂黑。

Children find meanings in their old family tales.

When Stephen Guyer’s three children were growing up, he told them stories about how his grandfather, a banker, 21 all in the 1930s, but did not lose sight of what he valued most. In one of the darkest times when his strong-minded grandfather was nearly 22 , he loaded his family into the car and 23 them to see family members in Canada with a 24 ,“There are more important things in life than money. ”

The 25 took on a new meaning recently when Mr. Guyer downsized to a 26 house from a more expensive and comfortable one. He was 27 that his children, a daughter, 15, and twins, 22, would be upset. To his surprise, they weren’t. Instead, their reaction echoed（共鸣）their great-grandfather’s. What they 28 was how warm the people were in the house.K Many parents are finding family stories have surprising power to help children through hard times. Storytelling experts say the phenomenon reflects a growing 29 in telling tales, evidenced by a rise in a storytelling events and festivals.

A university 30 of 65 families with children aged from 14 to 16 found kids’ ability to retell parents’ stories was linked to a lower rate of anger and anxiety.

21. A. missed B. lost C. forgot D. ignored

22. A. friendless B. worthless C. penniless D. homeless

23. A. fetched B. allowed C. expected D. took

24. A. hope B. promise C. suggestion D. belief

25. A. tale B. agreement C. arrangement D. report

26. A. large B. small C. new D. grand

27. A. surprised B. annoyed C. disappointed D. worried

28. A. talked about B. cared about C. wrote about D. heard about

29. A. argument B. skill C. interest D. anxiety

30. A. study B. design C. committee D. staff

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汽车排放的污染物中，能形成“酸雨”，造成水和土壤酸化的物质是（）。A、COB、HCC

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