I am always eager to do experiments, especially chemistry ones. It's
_26_ to work with test tubes and beakers（烧杯） , even though sometimes my efforts end in__
27___. Experiments were fun for me
__28 a recent accident.
The
29 happened when I was heating a big test tube with an alcohol burner（酒精灯） , chatting to my partner while waiting for__
30____ changes. All of a sudden, the tube cracked. Even though I jumped from my seat when I heard the crack, the hair on my forehead was __
31____ as I was leaning too close to the test tube.
__32___ I had no time to be sad about my hair: the liquid in the test tube poured onto the table and caught fire. I'd never
33 _ anything so bad! My___
34___went blank （空白）for a moment. Then I quickly covered the fire with a damp cloth to__
35____.
The teacher told me that the test tube broke in half at the bottom because we didn't dry it properly before __
36___ it.
We calmed down and did the experiment, again. But our hearts were still __
37____ rapidly even after we walked out of the lab.
But my bad __
38___ didn't end there! Since all _
_39 was focused on the flames while we were in the lab, I didn't see the liquid falling onto my trousers.
During the following class, I felt a __
40___ in my leg. Soon it became more and more painful and I touched the area with my fingers,
_41_ to make things better. But to my great
42___ , the material of my trousers turned into powder! “Vitrio（硫酸）! ! !”The terrible word came into my mind. I rushed out right away to wash and examine my poor skin.
_43_ , it was not a serious injury.
After changing my __
44____I sat down and told myself: danger is no joke! It's very important to have a serious___
45___ in chemistry class. Doing scientific experiments as a learner is no laughing matter.
| 小题1: | | A．exciting | B．moving | C．dangerous | D．difficult |
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| 小题2: | | A．success | B．failure | C．loss | D．waste |
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| 小题3: | | A．but | B．except | C．besides | D．until |
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| 小题4: | | A．incident | B．change | C．disaster | D．accident |
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| 小题5: | | A．physical | B．chemical | C．biological | D．historical |
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| 小题6: | | A．broken | B．burnt | C．blown | D．pulled |
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| 小题8: | | A．felt | B．heard | C．experienced | D．imagined |
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| 小题9: | | A．head | B．stomach | C．ear | D．mind |
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| 小题10: | | A．leave it out | B．let it out | C．give it out | D．put it out |
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| 小题11: | | A．boiling | B．holding | C．heating | D．cooking |
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| 小题12: | | A．striking | B．beating | C．knocking | D．hitting |
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| 小题13: | | A．feeling | B．time | C．chance | D．luck |
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| 小题14: | | A．effort | B．sense | C．attention | D．spirit |
|
| 小题15: | | A．push | B．pain | C．bite | D．touch |
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| 小题16: | | A．failing | B．managing | C．trying | D．planning |
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| 小题17: | | A．disappointment | B．joy | C．surprise | D．comfort |
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| 小题18: | | A．Fortunately | B．Obviously | C．Unexpectedly | D．Generally |
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| 小题19: | | A．coats | B．shirts | C．socks | D．trousers |
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| 小题20: | | A．heart | B．attitude | C．thought | D．preparation |
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