题目

(8分)碘化钠是实验室中常用的分析试剂，工业上用铁屑还原法制备NaI的流程如下图：请回答下列问题：(1)判断反应①中碘是否反应完全的方法是_____________________(2) 操作I的名称是_____________________；(3) 反应①的离子方程式为_____________________(4) 反应②中NaIO3被Fe单质还原为NaI，同时生成Fe(OH)3,该反应的化学方程式是______；在该反应中若有99 gNaIO3被还原，则转移电子的物质的量为_______mol 完型填空（共20小题；每小题1．5分，满分30分）阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上涂黑。When I was about five years old, I used to watch a bird in the skies of southern Alberta from the Blackfoot Blood Reserve in northern Montana where I was born．I loved this bird; I would    36 him for hours．He would    37  effortlessly in that gigantic sky, or he would come down and light on the   38 and float there beautifully．Sometimes when I watched him, he would not make a sound and liked to move   39  into the grasses．We called him meksikatsi, which in the Blackfoot language   40  “pink-colored feet”; meksikatsi and I became very good friends．The bird had a very particular significance to me   41  I desperately wanted to be able to fly too．I felt very much as if I was the kind of person who had been born into a world where    42  was impossible．And most of the things that I    43   about would not be possible for me but would be possible only for other people．When I was ten years old, something unexpected   44 my life suddenly．I found myself become an  45 child in a family I was not born into; I found myself in a   46 position that many native Americans find themselves in, living in a city that they do not understand at all, not in another culture but   47 two cultures．A teacher of the English language told me that meksikatsi was not called meksikatsi, even though that is what   48 people have called that bird for thousands of years．Meksikatsi, he said, was really “duck”．I was very  49 with English．I could not understand it．First of all, the bird did not look like “duck”, and when it made a    50  , it did not sound like “duck”, I was even more   51  when I found out that the meaning of the verb “to duck” came from the bird．As I   52 to understand English better, I understand that it made a great deal of    53   , but I never forgot that meksikatsi made a different kind of meaning．I   54  that languages are not just different words for the same things but totally different    55  , totally different ways of experiencing and looking at the world．小题1:A．keepB．watchC．followD．search小题2:A．jumpB．diveC．circleD．wander小题3:A．nestB．hillC．waterD．road小题4:A．quicklyB．naturallyC．freelyD．quietly小题5:A．meansB．readsC．showsD．states小题6:A．thoughB．becauseC．whileD．until小题7:A．communicationB．imaginationC．beliefD．flight小题8:A．dreamedB．worriedC．knewD．argued小题9:A．improvedB．enrichedC．changedD．ruined小题10:A．educatedB．adoptedC．outgoingD．independent小题11:A．weakB．comfortableC．terribleD．central小题12:A．betweenB．againstC．withoutD．beyond小题13:A．mostB．fewC．theirD．my小题14:A．desperateB．boredC．uncomfortableD．disappointed小题15:A．noiseB．callC．decisionD．choice小题16:A．ashamedB．confusedC．embarrassedD．frightened小题17:A．triedB．cameC．determinedD．expected小题18:A．evidenceB．distinctionC．profitD．sense小题19:A．identifiedB．confirmedC．realizedD．predicted小题20:A．conceptsB．regulationsC．messagesD．evaluations