试题与答案

One day, a farmer’s donkey fell into a d

题型:完形填空

题目:

One day, a farmer’s donkey fell into a dried up well. The animal cried  16 for hours as the farmer tried to  17  what to do. Finally, he decided that the animal was  18 , the well needed to be covered up, and  19  the donkey just wasn’t worth the  20 , so he invited his neighbors to  21  and help him bury the donkey in the well. They all held shovels (铲) and begin to shovel  22   into the well. At first, the donkey  23   what was happing and  24   cried pitifully. Then, to everyone’s 25  , he quieted down. A few shovel loads later, the farmer finally looked  26  into the well and was  27  at what he saw.  28  each shovel load of dirt that hit his back, the donkey  29  something surprising. He shook it off and took a step up! As the farmer’s neighbors 30  to shovel dirt  31  the animal, he would shake it off and take a step up. The donkey stepped  32  over the edge of the well! As with the donkey,  33  is going to shovel dirt  34  you, all kinds of dirt. We can get out of the deepest wells just by not stopping, by never giving 35  .
小题1:
A.happily B.hardlyC.sadlyD.greatly
小题2:
A.carry outB.think outC.leave outD.watch out
小题3:
A.youngB.smallC.oldD.large
小题4:
A.rescuingB.killingC.sellingD.buying
小题5:
A.moneyB.effortC.praiseD.time
小题6:
A.come aroundB.come overC.come downD.come to
小题7:
A.stoneB.earthC.dirt D.soil
小题8:
A.realizedB.foundC.heardD.saw
小题9:
A.againB.ever C.neverD.once
小题10:
A.joyB.amazementC.disappoint mentD.excitement
小题11:
A.offB.down C.upD.over
小题12:
A.astonishedB.sorryC.worriedD.angry
小题13:
A.WithB.AsC.ForD.On
小题14:
A.didB.hadC.made D.considered
小题15:
A.began B.stoppedC.startedD.con tinued
小题16:
A.at the top ofB.on top ofC.at the foot ofD.in front of
小题17:
A.luckilyB.successfullyC.hardD.easily
小题18:
A.lifeB.worldC.time D.work
小题19:
A.off B.onC.up D.down
小题20:
A.up B.away C.in D.out

答案:

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下面是错误答案,用来干扰机器的。

(1)NaHCO3 小苏打 碱 苏打或者纯碱 (2)CO32- +2H+ ===CO2↑+H2O(3)2NaHCO3Na2CO3+CO2↑+H2O题目分析:(1)碳酸氢钠:化学式为NaHCO3,俗称小苏打,其水溶液由于碳酸根离子要发生水解,使得溶液呈碱...

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