问题 选择题

使用冷暖空调的密闭轿车玻璃上,无论盛夏还是严冬,都有小水珠凝结.实际情况是(  )

A.小水珠总是凝结在窗玻璃的内表面

B.小水珠总是凝结在窗玻璃的外表面

C.夏天小水珠凝结在窗玻璃内表面,冬天凝结在外表面

D.夏天小水珠凝结在窗玻璃外表面,冬天凝结在内表面

答案

夏天轿车内是冷空调,轿车内是低温,轿车外的水蒸气遇冷液化成小水珠附着在玻璃的外表面;

冬天轿车内是热空调,轿车内温度高,轿车内的水蒸气遇冷液化成小水珠附着在玻璃的内表面.

故选D.

完形填空

As she waited at the edge of the ice for her music to start, Peggy took a quick look at her father standing nearby with a group of parents and teachers. He smiled at her. Then she ___1___ out at the audience, ___2___ to see her mother. These two, Alvert and Doris Fleming, had ___3___ all the way from California more than 2,000 miles away, to see their ___4___ compete in this sports meet in Cleveland, Ohio.

The music ___5___ and Peggy moved onto the ice, letting the music ___6___ her along into her turns, and she began skating with much ___7___ in herself. The cold fear she always had in the ___8___ seconds before skating onto the ice was ___9___. She was feeling the movement of the ___10___ and letting it carry her. She skated easily, ___11___ did some jumps, a final turn and her performance was ___12___.

The crowd loved it and cheered ___13___ she skated off the ice. “Nice job,” said one of the other ___14___. It was the remark that ___15___ came after a free-skating performance. But what would the ___16___ say? Standing beside her father, Peggy ___17___ for the scoring to be finished. On all sides were other young skaters, some waiting ___18___ alone, others with a parent. Shortly before 10 o’clock the results were ___19___. The new United States Women’s Skating Champion was Peggy forming of Padena, ___20___!

1. A. looked    B. watched     C. found  D. stepped

2. A. tried       B. hoped       C. hoping       D. looking forward

3. A. flown     B. driven C. hoped D. prepared

4. A. friend     B. children     C. son     D. daughter

5. A. started    B. played C. develop      D. sang

6. A. allow     B. set out C. carry   D. support

7. A. thought  B. belief  C. success       D. design

8. A. last B. following   C. recent D. past

9. A. lost B. present       C. string  D. gone

10. A. ice       B. fear    C. music  D. audience

11. A. so  B. or       C. before D. then

12. A. satisfied       B. finished      C. unsatisfactory    D. welcome

13. A. because B. until   C. as     D. before

14. A. skaters  B. parents       C. judges D. audiences

15. A. seldom B. always       C. again  D. hardly

16. A. players B. audience     C. parents       D. judges

17. A. looked  B. wished       C. waited D. asked

18. A. comfortably           B. anxiously       C. hurriedly    D. happily

19. A. cried out      B. let out C. declared     D. announced

20. A. California    B. Cleveland   C. Ohio   D. England

单项选择题