Although in 1947 we were still very new to the atomic age, we knew about mushroom clouds. A huge crack (裂缝) spread across the library wall upstairs, sending teachers and __3
1__ screaming down the hall.
Had a new world war started? Palefaced, our young science teacher quickly__
32__us for a fire drill. We huddled (卷缩) in little groups on the beach side of the school grounds and__
33__the spreading cloud darken the bright spring sky.
Rumors flew every which way，__
34__two hours would pass before we got the full story. One rumor we heard was that the Texas City Monsanto Chemical plant had__
35__； children whose parents__
36__there began to cry.
I__
37__—that was where my father was working that day.
The school bell called us back inside, and we were dismissed (解散) to__
38__our way home the best way we could. I'd walked a quarter of the threemile trip to my home__
39__a car horn frightened me to__
40__. My Uncle Barney__
41__alongside me in his old Ford. The instant I saw him, I knew my father__
42__. Otherwise, Papa would have__
43__for me himself.
As if in slow motion from a great distance, Uncle Barney motioned for me to__
44__. Numb with grief, I crawled into the back__
45__. I barely took notice of the man sitting there, and didn't recognize him until he__
46__me. When Papa put his strong arms around me, I forgot for a moment that Cherokees aren't supposed to__
47__.
Many of my fellow students lost their__
48__in the explosion. Tragedy would one day come to our__
49__， as it inevitably (不可避免地) comes to all, but one day Texas City blew up, it miraculously (奇迹般地) passed us by. Because he lost his keys on that April morning, as he explained, my father lived for__
50__32 years—we were to have a second lifetime forever.
| 小题1: | | A．headmaster | B．students | C．workers | D．books |
|
| 小题2: | | A．organized | B．ordered | C．made | D．asked |
|
| 小题3: | | A．heard | B．smelled | C．watched | D．felt |
|
| 小题4: | | A．when | B．as | C．as if | D．although |
|
| 小题5: | | A．blown up | B．been closed | C．been opened | D．been on fire |
|
| 小题6: | | A．lived | B．worked | C．studied | D．visited |
|
| 小题7: | | A．smiled | B．frightened | C．froze | D．worried |
|
| 小题10: | | A．decision | B．attention | C．feeling | D．expression |
|
| 小题11: | | A．pulled up | B．pulled out | C．pulled in | D．pulled off |
|
| 小题12: | | A．was there | B．was here | C．was gone | D．was alone |
|
| 小题13: | | A．gone | B．come | C．left | D．stopped |
|
| 小题14: | | A．get off | B．get over | C．get through | D．get in |
|
| 小题15: | | A．seat | B．chair | C．stool | D．bag |
|
| 小题16: | | A．looked at | B．helped | C．reached for | D．called on |
|
| 小题17: | | A．cry | B．laugh | C．excite | D．shout |
|
| 小题18: | | A．teachers | B．relatives | C．friends | D．parents |
|
| 小题19: | | A．class | B．family | C．school | D．house |
|
| 小题20: | | A．other | B．others | C．another | D．the other |
|
上，到小轮中心距离为r，c点和d点分别位于小轮和大轮的边缘上，若在传动过程中，皮带不打滑，则