问题 选择题

工业上先后用下列方法制备金属钠:

①用石墨作电极电解熔融氢氧化钠制钠;

②铁与熔融氢氧化钠作用制钠:3Fe+4NaOH 

 1100℃ 
.
 
 Fe3O4+2H2↑十4Na↑;

③电解熔融氯化钠.

下列有关说法正确的是(  )

A.电解熔融氢氧化钠制钠的反应为:4NaOH(熔) 

 电解 
.
 
 4Na+2O2↑+2H2

B.在电解熔融氯化钠的电解槽(如图)中,石墨为阳极,铁为阴极

C.电解熔融氯化钠时,Na+向阳极移动

D.方法①与②制得等量的钠,两反应中转移的电子总数相等

答案

答案:B

选择题
完形填空
完形填空(共20小题,每小题1分,满分20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,并在答题卡上将该项涂黑。
Last year , I lost my best friend in high school . It seemed that everyone else’s life could just continue on in its  36 way, but mine couldn’t . I wasn’t sure how I was going to be able to face  37 and their gossip at school . I was forced to    38  my routine on Monday morning as usual. In the evening I returned home from school   39  completely defeated . All I wanted to do was  40 into bed and wallow(沉迷于)in my own self-pity. I pulled back the covers on my bed and   41 a pile of cards left by dad . Each card included a(n)  42 that is was to be opened on a    43  night that week.
I made it through that week  44 my father . Each card  45 to say just what I needed to hear.Tuesday’s card said , “The past is painful to think about and the   46 is impossible to imagine.Don’t try.Just take it one minute at a time.”On Wednesday my mood  47 when I read. “What you are feeling now is   48 and normal.It still feels very bad , but it is part of the healing  49 .”Friday’s card contained a poem he wrote.The last lines made me smile through my tears. “Whatever special  50 you face along life’s way,may you  51 that you will find the best in every day.”I was instructed to open the last card  52 the party I went to on Saturday night . In it he wisely reminded me to   53 . “The world isn’t so bad after a good laugh.The more you laugh.the more you heal.”Each card was signed , “Love , Dad.”
My world once collapsed but I   54 the difficult breakup eventually. It owed to my dad, who made his  55 known when he couldn’t be present
小题1:
A.pleasantB.strangeC.funnyD.normal
小题2:
A.everyoneB.anyoneC.someoneD.nobody
小题3:
A.work outB.meet withC.deal withD.come across
小题4:
A.makingB.feelingC.regardingD.considering
小题5:
A.crawlB.push C.jumpD.draw
小题6:
A.inventedB.discoveredC.createdD.wrote
小题7:
A.instructionB.explanationC.presentationD.information
小题8:
A.regularB.flexibleC.particularD.legal
小题9:
A.in favor ofB.regardless ofC.in search ofD.because of
小题10:
A.seemedB.happened C.occurredD.intended
小题11:
A.lifeB.futureC.dreamD.result
小题12:
A.fellB.passedC.flewD.lifted
小题13:
A.falseB.honestC.naturalD.innocent
小题14:
A.contentB.processC.cureD.progress
小题15:
A.destructionB.competitionC.challengesD.permission
小题16:
A.trustB.guessC.predictD.succeed
小题17:
A.beforeB.sinceC.afterD.till
小题18:
A.cryB.screamC.singD.laugh
小题19:
A.got throughB.looked throughC.broke throughD.put throngh
小题20:
A.scheduleB.conceptC.soulD.confidence