问题 填空题

(7分,每空1分)A、B、C、D为同一周期的四种元素,原子序数依次增大,已知0.2摩A与酸充分反应时,在标况下可生成2.24升氢气;B的氧化物既可溶于强酸又可溶于强碱溶液;C、D阴离子的电子层结构与氩原子相同,C的气态氢化物与C的低价氧化物反应,又可得到C的单质。试回答:

(1)A、B、C、D的元素符号分别为______、____      、______。

(2)用电子式表示A与C形成化合物的过程:

_________________________________________________。

(3)写出B的氧化物与A的氢氧化物反应的离子方程式:

_________________________________               

(4)写出实验室制备D的单质的化学反应方程式:

__________________________________________。

答案

(每空1分)(1)Na、Al、S、Cl(2)略

(3)Al2O3 + 2OH - =" AlO" - + H 2O

(4)MnO2 + 4HCl(浓)  MnCl2 + Cl2↑ + H2O

阅读理解

阅读理解。

                                                        Thanks a Million, Dad

     I was born disabled. A difficult birth, feet first, my head stuck.By my first birthday, I couldn't stand or

walk.

     When I was three, the doctor told dad I had cerebral palsy (脑瘫).A loss of oxygen to my brain had

destroyed brain signals to the right side of my body.

     But no son of my dad' s was going to be disabled. Every morning before breakfast and every evening

before bed, my dad placed me on the bedroom floor to exercise my right leg. The muscles were shrunk

and twisted together. Back and forth up and down, my dad pushed and pulled the muscles into shape.

     But my dad' s exercise of passion didn't stop there. For my 13th birthday, he threw me a special party. When everybody was gone, he brought me to open a large box, it was a-set of boxing gloves. We put

them on. My dad kept on beating me mercilessly. Each time I tried to get up, leather kissed my nose,

eyes and jaw. I "begged him to stop. He said he beat me to get me ready for the tough world.

     That same year, I was the only kid in my neighborhood that wasn't picked for Little League. Two

weeks later. Dad started the Shedd Park Minor League, and every kid played. Dad coached us and

made me a pitcher (棒球投手).

     The power of my dad' s love guaranteed I walked and more. In high school, I became a football star.

In 1997, a brain surgeon in San Jose told me I didn't t have cerebral palsy after all. He explained how and where the doctor' s forceps (镊子) at birth had damaged my brain.

      My dad never knew the whole truth since he passed away years ago. But all that counts is the bottom

line. After all his madness, on this Father' s Day, like every Father' s Day, I' m no longer disabled.

1.What caused the author' s disability?

A. A failed operation.

B. The doctor's forceps.

C. An accident in a game.

D. Shrunken and twisted muscles.

2. What do we learn from the passage?

A. The author has a talent for boxing.

B. The author achieved a lot thanks to his father' s love.

C. The author became a baseball star with the help of his father.

D. The author doesn't think his father should be so strict with him.

3. Paragraph 3 suggests that the author' s father____.

A. wouldn't give up hope easily

B. believed his son was a normal child

C. blamed the doctors for his son' s disability

D. couldn't accept the truth that his son was disabled

4. The author wrote the passage to ____.

A. remember his father

B. encourage disabled children

C. show the difficulty the disabled face

D. give advice to the parents of disabled children

单项选择题