问题 选择题

类推是化学学习和研究中常用的思维方法,但类推出的结论最终要经过实践的检验才能决定其正确与否。下列类推正确的是                                               (   )

A.Mg可由电解熔融MgCl2制取,Al也可由电解熔融AlCl3制取

B.金属Na着火不能用干冰灭火,金属K着火也不能用干冰灭火

C.由Ca2++2ClO+H2O+CO2=CaCO3↓+2HClO,类推出Ca2++2ClO+H2O+SO2=CaSO3↓+2HClO

D.由Fe跟Cl2直接化合可得FeCl3,类推出Fe跟I2直接化合可得FeI3

答案

答案:B

阅读理解
A famous magician (魔术师) came to our city. He gave some   41 . Most of his shows had educational   42 . He taught lessons about health, history and some other things about life through his magic tricks (魔术). Both children and parents   43  his shows, for the fun as well as the 44  .
My mother  45  me to watch one of his shows the day before yesterday. The show taught children not to steal (偷) by describing   46  a person might feel when his or her thing was stolen. In the show, there was a shark. He often stole things and never   47  the owners' feelings. Then one day he found his   48  things were stolen. He was angry and   49 . From that experience, he   50  how worried and angry others would be when their things were   51 . From then on he decided to   52  stealing.
The show was   53 . It made me understand why we shouldn't take what didn't    54  us, I also learned that we shouldn't get happiness from   55  others. Later I recommended (推荐) it to some of my friends, hoping they would also learn something from it while enjoying the wonderful magic.
小题1:
A.moneyB.chancesC.timeD.shows
小题2:
A.challengesB.mistakesC.experiencesD.messages
小题3:
A.missedB.enjoyedC.learnedD.remembered
小题4:
A.educationB.supperC.friendsD.players
小题5:
A.tookB.helpedC.wishedD.allowed
小题6:
A.whyB.howC.whenD.what
小题7:
A.gave upB.wrote downC.cared aboutD.laughed at
小题8:
A.cheapB.colorfulC.ownD.lucky
小题9:
A.relaxedB.upsetC.dishonestD.energetic
小题10:
A.forgotB.learnedC.disagreedD.visited
小题11:
A.lostB.helpfulC.wrongD.broken
小题12:
A.startB.finishC.stopD.keep
小题13:
A.uninterestingB.newC.boredD.great
小题14:
A.make upB.borrow fromC.depend onD.belong to
小题15:
A.teachingB.hurtingC.beatingD.refusing
判断题