问题 阅读理解

I want to talk about the economy.Not "the economy" we hear about endlessly in the news each day and in politicians' speeches.I want to talk about the real economy, the one we live in day by day.

Most people aren't particularly interested in "the economy"."Share prices are flying high; interest rates are soaring;  the Dow Jones Index closed sixty-three points down on 8472.35." We hear this and subconsciously switch off.

Notice that "the economy" is not the same as the economy, "The economy" is what men in suits play with to make vast personal wealth.The economy is where the rest of us live on a daily basis, earning our living, paying our taxes, and purchasing the necessities of life.

We are supposed to be benefiting from all the advantages of a well-off society.So why do we feel tired and stressed? We have no time for anything other than work, which is ridiculous given the number of labor-saving devices in our lives.Our towns become more and more crowded.We poison our air and seas, and our food is full of chemicals.There's something wrong here.If times were truly good, then you may think we'd all feel optimistic about the future.Yet the majority of us are deeply worried.More than 90 percent of us think we are too concerned about ourselves and not concerned enough about future generations.

The term "economic expansion" suggests something desirable, but expansion simply means spending more money.More spending doesn't mean that life is getting better.We all know it often means the opposite - greed, crime, poverty, pollution.More spending merely feeds our whole economic system, which is based on production and consumption.Unless money keeps circulating,  the economy breaks down.If we don't keep consuming,  the whole system goes into stalemate(僵局).

How do we break the cycle and make some changes? We need to become far more aware of the results of our actions.We buy clothes that are made in sweat shops by virtual slaves in poor parts of the world.We create mountains of waste.We demand cheap food,  mindless of the fact that it totally lacks taste and is produced using chemicals that poison the land.

The consumption culture makes us unaware of the effect of our own behavior.Our main problem is not that we don't know what to do about it.It is gathering the desire to do it.

小题1:According to the author, which one belongs to the real economy?

A.The Dow Jones Index.

B.Increases in interest rates

C.Skyrocketing share prices

D.Shopping in a supermarket小题2:It can be concluded from Paragraph 4 that        

A.people are benefiting from a well-off society

B.the future generation is a big concern for most people

C.people still feel much pressure despite labor-saving devices

D.the majority of people are optimistic about the future小题3:What is true about economic expansion?

A.It guarantees a better life for us.

B.It may lead to some social problems.

C.It will stop the circulation of money.

D.It has only brought desirable effects.小题4:The author writes the passage mainly to       

A.call on us to change our behavior

B.suggest a solution for over-consumption

C.make a distinction between two economies

D.inform us of the effects of economic expansion

答案

小题1:D

小题2:C

小题3:B

小题4:A

题目分析:本文作者讨论了我们日常生活中的经济并非所谓的经济学家们吹嘘的经济,作者写作这篇文章是在呼吁大家能够为我们的行为作出改变。

小题1:细节题。从The economy is where the rest of us live on a daily basis, earning our living, paying our taxes, and purchasing the necessities of life.可知,在商场购物才是这里所说的真正的经济,故选D

小题2:推断题。从We have no time for anything other than work, which is ridiculous given the number of labor-saving devices in our lives.可知,尽管有了这些省力的设备,人们还是感觉到很大的压力,故选C

小题3:细节题。从文章倒数第三自然段及More spending doesn't mean that life is getting better.可知这样会导致一些社会问题,故选B

小题4:推断题。从文章最后两段How do we break the cycle and make some changes?及The consumption culture makes us unaware of the effect of our own behavior.可知,作者写作这篇文章的目的是在呼吁我们应该改变我们的行为,故选A

点评:文章重在理解作者的感情基调,从全文来看,作者呼吁大家能够为我们的行为作出改变,由此可见对于议论文的文章重在把握作者的感情色彩,答题时不断提醒自己作者在讲什么,作者的是在褒义还是在贬斥,这一点非常重要。

单项选择题
实验题

(13分)过氧化钠(化学式为NaNa2O2)可用在呼吸面具中作为氧气来源。Na2O2能跟CO2反应生成O2和另一种固体化合物(用X表示);它也能跟H2O反应生成O2,化学方程式为:2Na2O2+2H2O = 4NaOH+O2↑。以下是某兴趣小组进行的探究活动。

(1)利用如下图所示实验装置制取氧气,请回答有关问题。

①实验室制取CO2的化学方程式为                                 

②表明CO2未被Na2O2完全吸收的实验现象为                          

③O2可采用D装置收集,并用带火星的木条检验,这是利用了O2                    性质。

④若A装置产生的CO2中混有水蒸气,要检验干燥的CO2能否与Na2O2反应生成O2,以上实验装置应如何改进                                          

(2)为探究X是哪种物质及其有关性质,同学们进行了如下分析和实验。

①有同学猜想X可能是酸、碱或盐中的一种。通过对物质组成的分析,大家一致认为X肯定不是酸和碱,理由是                                    

②同学们通过讨论和实验证明了X是Na2CO3。以下是他们设计的有关Na2CO3性质的探究实验,将下表填写完整。

   实验操作   现 象   有关的化学方程式
实验一:取少量固体样品,                     

澄清石灰水变浑浊

Na2CO3+2HCl=2NaCl+H2O+CO2

CO2+Ca(OH)2=CaCO3↓+H2O

实验二:取少量固体样品,

加水配成溶液,滴加适量的         溶液

 

有白色沉淀产生

 

                                

(3)7.8g过氧化钠与足量的水反应,生成氧气的质量是多少?若反应后得到了40g氢氧化钠溶液,请计算氢氧化钠溶液中溶质的质量分数。