问题 完形填空
请认真阅读下面短文,并根据所读内容在文章后图表中的空格里填入最恰当的单词。注意:每空只填一个单词。
Bored at school now?  How do you think it will look in the future? Last week, about 600 teenagers in the U.S. imagined a future changed by technology in which their lessons are taught by robots and they learn about celebrities (名人)and alien(外星人)languages.
According to a survey published last week by the U.S. ,Internet service provider American Online(AOL), only one in 100 thinks that in the future they will walk from home to school; the rest believe they will use jet packs, and hover boards(滑板) as everyday transport.
All the participants(参与者)of the survey are teenagers born into the Internet age. The study is to show how the first cyber (网络的)generation dream about a future life created by advanced technology.
Most believe there will still be schools to go to, but that technology will play an increasingly important role in learning. The 600 teens surveyed think there will still be teachers, but 37 percent imagine them to be robots. Some 24 percent believe that teachers will still be human but they will have inter-changeable microchips so that one person can teach all subjects.
More than one in two believe hover boarding will be popular, while one-third say that wearing rocket boots will be their favorite activity. Another third think jet packs will be popular. Nearly 30 percent think playing football and bike-riding will remain popular.
When it comes to the curriculum(课程), they think future generations will be learning about robot building(63 percent), alien languages(47 percent) celebrities(26 percent) and R’n’B music(22 percent).
Children will wear virtual(虚拟的)reality helmets(头盔) to bring lessons to life, say 40 percent, while over 20 percent believe they will not need lessons because microchips implanted(植入)in their head will send relevant information into the brain. Matt Whyman, adviser to the chief medical officer on youth issues of AOL, said: “ The kids seem very aware of the liberation qualities of technology.”
Title ( 1 )_________school
Changes in the way of (2)___traveling
At present, most students walk to school. In the future, students will use jet packs, and hover boards.
Changes in the way of  (3)______
In the future, robots will (4)_______ as teachers and human teachers should be (5)_________ with inter-changeable microchips so that one person can teach all subjects.
Changes in the way of (6)_______
Virtual reality helmets can bring (7) ________ lessons to them and with the help of microchips implanted in their head, they will not need lessons. 
Changes in  (8)_______
Most students will (9)_______ hover boarding, wearing rocket boots and jet packs while a small (10)_______ of students think playing football and bike-riding will remain popular.
 
答案

小题1: future  

小题1:daily

小题1:teaching

小题1:work

小题1:equipped

小题1:learning

小题1:vivid / lively

小题1:activities / hobbies

小题1: enjoy 

小题1: number

填空题

氧化还原反应规律是化学学科的重要规律之一。按要求回答下列问题:

(1) 被称为万能还原剂的NaBH4溶于水并和水反应:NaBH4+2H2O=NaBO2+4H2↑,此反应中B元素的化合价没有发生变化,则NaBH4中H的化合价为___________,该反应氧化产物是______________,还原产物是______________。

(2) 有下 * * 个反应:

①Cl2+FeI2=FeCl2+I2 ;②2Fe2++Br2=2Fe3++2Br;③Co2O3+6HCl=2CoCl2+Cl2↑+3H2O

①根据以上方程式可以得到Fe2+、Co2+、Br、I还原性由强的弱的顺序为_________;

②1molCo2O3能氧化HCl的物质的量_____________。

(3) 完成并配平下列化学反应方程式:

□KMnO4+□H2C2O4+□________□CO2+□K2SO4+□MnSO4+□H2O

(4)一个完整的氧化还原反应方程式可以拆写成两个“半反应式”,一个是“氧化反应式”,一个是“还原反应式”。如2H+ +Zn=Zn2++H2↑,可拆写为氧化反应式:Zn-2e=Zn 2+,还原反应式:2H++ 2e=H2↑。并由此实现了化学能与电能的相互转化。据此,回答下列问题:                                   

①将2Fe3++Cu= 2Fe2+ +Cu2+拆写为两个“半反应式”:其中,氧化反应式为                          

②由①中的反应,可设计成如右图所示的原电池:

若电极a为Cu ,电解质溶液甲的化学式为                                                  

电极b处的电极反应式为                                                    

选择题