题目内容：

Education from My Father

My memories of my father are slim because he was so sick in the last years of his life. But there are   32   that I am often reminded of and which may have had some bearing on my love of   33  .

When I was small I was somewhat   34   of lightning and thunder. My father explained it. The explanation was in   35   that a child could understand but was basically correct. I gained a better   36   later, but I didn’t have to unlearn anything.

What he said was that there was electricity in the clouds   37   it traveled to the ground like a spark. When it traveled   38   the air it made the air so hot that it   39  . Then there was nothing where the air had been and the air all around rushed in to   40   the space. He clapped his hands together very loud,   41   to be the air rushing in, and said that makes the thunder. When I hear thunder, I can still hear that   42  .

He explained why if it was cloudy in the winter the night was warmer than if it was   43  . It was one of those nights when the sky was full of stars: no moon, no town lights. But there were more stars than you could   44   and they had color too. He said that if there were no clouds, we had no blankets and were   45   to the universe. Our warmth was going to   46   the whole universe. When there were clouds, they were like blankets and we were not exposed to the universe. I   47   feel on the edge of space on a very clear night.

I am sure there were many other lessons that I   48   but no longer remember. What I did 49  , in general, was that there were explanations and that the more I understood them, the more    comfortable the world was to live in. I was not taught that there were   50   but that there was understanding if you looked for it. This may be why I have always been   51   in science.

1.A. others            B. few             C. some          D. all

2.A. science           B. nature          C. weather       D. universe

3.A. sure              B. fond            C. tired         D. afraid

4.A. depth             B. words           C. gestures      D. data

5.A. understanding B. knowledge           C. command       D. confidence

6.A. but               B. and             C. for           D. or

7.A. above             B. to              C. along         D. through

8.A. shone             B. burned          C. expanded      D. broke

9.A. fill              B. make            C. avoid         D. break

10.A. trying           B. proving         C. hoping        D. pretending 

11.A. clap             B. remark          C. voice         D. crash

12.A. cold             B. bright          C. clear         D. foggy

13.A. explore          B. foresee         C. imagine       D. identify

14.A. committed        B. exposed         C. related       D. led

15.A. heat             B. protect         C. extend        D. light

16.A. ever             B. also            C. even          D. still

17.A. selected         B. arranged        C. absorbed      D. delivered

18.A. consider         B. promise         C. explain       D. learn

19.A. memories         B. blankets        C. mysteries     D. thunders

20.A. engaged          B. interested      C. successful    D. skillful