问题 填空题

酸、碱、盐在工业生产和日常生活中的广泛应用,促进了人类文明的进步和社会的可持续发展.

(1)服用含氢氧化铝[Al(OH)3]的药物可以治疗胃酸过多症,此反应的化学方程式为      

(2)生活中用石灰浆粉刷墙壁,干燥后墙面就变硬了,此反应的化学方程式为      

(3)化肥对提高农作物的产量具有重要作用.现有①硫酸钾;②硝酸铵;③磷矿粉;④氯化钾四种化肥,其中从外观可与其他化肥相区别的是     (填序号).

答案

(1)Al(OH)3+3HCl=AlCl3+3H20

(2)Ca(OH)2+C02=CaC03↓+H20

(3)③

(1)胃酸的主要成分是盐酸,氢氧化铝能与盐酸反应生成氯化铝和水;(2)石灰浆的主要成分是氢氧化钙,氢氧化钙吸收空气中的二氧化碳反应生成碳酸钙和水,碳酸钙不溶于水,硬度较大;(3)钾肥和氮肥通常是白色固体,磷肥是灰白色粉末,从外观上可将钾肥、氮肥和磷肥区分开来,硫酸钾、硝酸铵和氯化钾都是白色固体,磷矿粉是灰白色固体。

阅读理解

阅读理解。

     The poor are very wonderful people. One evening we went out and we picked up four people from

the street. And one of them was in a most terrible condition-and I told the sisters: You take care of the

other three. I take care of this one who looked worse. So I did for her all that my love can do. I put her

in bed, and there was such a beautiful smile on her face. She took hold of my hand as she said just the

words "Thank you" and she died.

    I could not help but examine my conscience before her and I asked what I would say if I was in her

place. And my answer was very simple. I would have tried to draw a little attention to myself. I would

have said I am hungry, I am dying, I am cold, I am in pain, or something, but she gave me much

more-she gave me her grateful love. And she died with a smile on her face. So did that man whom we

picked up from the drain, half eaten with worms, and we brought him to the home. "I have lived like an

animal in the street, but I am going to die like an angel, loved and cared for," he said at the end. And it

was so wonderful to see the greatness of that man who could speak like that, who could die like that

without blaming anybody, without cursing anybody, without comparing anything. Like an angel-this is

the greatness of our people. And that is why we believe what Jesus has said: I was hungry, I was

naked, I was homeless, I was unwanted, unloved, uncared for, and you did it to me.

    And with this prize that I received as a Prize of Peace, I am going to try to make the home for many

people who have no home. Because I believe that love begins at home and if we can create a home for

the poor I think that more and more love will spread. And we will be able through this understanding

love to bring peace, the good news to the poor, the poor in our own family first, in our country and in

the world. When I pick up a person from the street, hungry and I give him a plate of rice or a piece of

bread, I am satisfied. I have removed that hunger. But to a person who is shut out, who feels unwanted,

unloved, terrified, who has been thrown out from society, that poverty is so full of hurt and so

unbearable... And so let us always meet each other with a smile, for the smile is the beginning of love,

and once we begin to love each other naturally we want to do something.

1. What can be learned from the second paragraph? 

A. The woman should have paid more attention to herself.

B. The man couldn't blame anyone.

C. The author is religious.

D. The man died in the street.

2. The purpose of this passage is ________. 

A. to appeal for more donation for the poor

B. to call on the public to love each other

C. to tell the readers the poor are wonderful

D. to express how moved the author is to receive the prize

3. Which of the following can NOT be inferred from the passage?

A. The author has few supporters.

B. The author was somewhat surprised at what the man said.

C. The author is delighted to help others in trouble.

D. The author may agree to solve social problems in soft ways.

4. What's the best title of this passage?  

A. Have Sympathy for the Poor

B. The Poor Are Wonderful

C. Smile and Love

D. Relieve Poverty

填空题