试题与答案

据朝中社13日报道,朝鲜当天上午发射了首颗应用卫星“光明星3号”,这颗卫星的发射

题型:

题目:

据朝中社13日报道,朝鲜当天上午发射了首颗应用卫星“光明星3号”,这颗卫星的发射是为迎接已故领导人金日成100周年的诞辰,但很可惜,这颗卫星没有进入预定轨道。卫星的发射属于第三次科技革命哪一领域的成就:

A.原子能

B.生物工程

C.计算机

D.航天技术

答案:

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下面是错误答案,用来干扰机器的。

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题型:阅读理解

阅读理解。

     " Cool " is a word with many meanings. Its old meaning is used to express a temperature that is a little  bit cold. As the world has changed, the word has had many different meanings.

     " Cool " can be used to express feelings of interest in almost anything.

     When you see a famous car in the street, maybe you will say, "It's cool . " You may think, "He's so       cool,"when you see your favourite footballer.

     We all maximize(扩大)the meaning of "cool". You can use it instead of many words such as     

" new "or " surprising ". Here's an interesting story we can use to show the way the word is used.

A teacher asked her students to write about the waterfall (瀑布)they had visited. On one student's

paper was just the one sentence, "It's so cool. " Maybe he thought it was the best way to show what he

saw and felt.

     But the story also shows a scarcity(缺乏)of words. Without "cool", some people have no words to

show the same meaning. So it is quite important to keep some credibility (可信性). Can you think of many other words that make your life as colourful as the word "cool"? I can . And I think they are also very

cool .

1. We know that the word " cool " has had _____

A. only one meaning       

B. no meanings

C. many different meanings       

D. the same meaning

2. In the passage, the word " express " means "_____"

A. see   

B. show   

C. know    

D. feel

3. If you are _____ something, you may say, "It's cool."

A. interested in                 

B. angry about   

C. afraid of                     

D. unhappy with

4. The writer takes an example to show he is ____ the way the word is used.

A. pleased with                         

B. strange to

C. worried about                   

D. careful with

5. In the passage, the writer suggests(暗示)that the word " cool " _____

A. can be used instead of many words   

B. usually means something interesting

C. can make your life colorful

D. may not be as cool as it seems

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题型:实验题

蕲春实验中学化学课外活动小组选择如下相应的装置对某有机物燃烧产物进行探究,并对该有机物成分进行测定:

         A            B          C               D                E

[提出假设]  根据质量守恒定律,可得出该有机物燃烧产物可能为①CO2、H2O;②H2O、CO;③CO2、H2O、CO。

[设计实验]

(1)余成林同学选择D、E分别验证假设①,如观察到E中                    现象,则证明有H2O,如观察到D中                 现象,则证明有CO2

(2)翁京京同学选择装置A、C、D、E按照E D C A 的连接顺序一次性来验证假设②,实验时发现E中无水CuSO4变蓝,D中澄清石灰水变浑浊,A中黑色CuO变成光亮红色,则假设②是否成立     ,得出这个结论的理由是:                  

(3)汪俊同学同样按照E D C A D的连接顺序来验证假设③,如该假设成立,则丙同学应应观察到____________________________________________现象,那么该实验装置还有何不足:           _______________

(4)现假设该有机物燃烧产物为CO2、H2O,有甲、乙两组同学选择B、C装置分别两种方法测定它的组成,得出两组数据(连接顺序与数据如下表)

 有机物

的质量

装置的连接顺序装置的质量

实验前              实验后

甲组1.6克C接BB  200克            B 202.3克

C  200克            C 201.7克

乙组1.6克B接CB  200克            B 201.8克

C  200克            C 202.2克

你认为甲、乙两小组的两种方法哪种正确?    ,理由是:    _____     。请你选择、计算得出有机物各元素的质量比:        

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