问题 填空题

(6分)第四周期元素中,4p轨道半充满的是        ,3d轨道半充满的是         ,4s轨道半充满的是          。(写元素符号)

答案

(6分)(1)As;Cr和Mn;K、Cu和Cr;(各2分)

K:[Ar]4s1;   Ca:[Ar]4s2

Sc:[Ar]3d14s2;   Ti:[Ar]3d24s2;   V:[Ar]3d34s2;   Cr:[Ar]3d54s1;   Mn:[Ar]3d54s2

Fe:[Ar]3d64s2;   Co:[Ar]3d74s2;   Ni:[Ar]3d84s2;   Cu:[Ar]3d104s1;   Zn:[Ar]3d104s2

Ga:[Ar]3d104s24p1;   Ge:[Ar]3d104s24p2;   As:[Ar]3d104s24p3;   Sn:[Ar]3d104s24p4;   Br:[Ar]3d104s24p5;   Kr:[Ar]3d104s24p6

阅读理解

阅读理解。

Dear Mr. Zhu,

     I'm writing to your magazine's "Teenagers Now" column (专栏) to ask for some help for my 16-year-old

son. At the moment, he refuses to do almost everything his mother and I ask him to do. He is our only child

and we treat him very well. His grandparents buy him many things, but he is still not polite to us. He refuses

to spend time with us or do as we tell him. Sometimes he acts as if he doesn't love us at all.

     Now he refuses to do his homework, but wastes lots of time watching DVDs and listening to foreign

music. I cannot understand this music, so I don't like it. He also spends too much time in Internet cafes,

where he either plays games or chats online.

     What should I do? Now I am giving him his freedom. However, I am worried that if I keep allowing

him to do what he wants, he may fail at school, or worse. How can I help my son without hurting our

relationship (关系)?

                                                                                                                             Yours,

                                                                                                                          Liu Zhenhua

1. What's Mr. zhu's job?

A. A teacher

B. A magazine columnist

C. A doctor

2. What can we know about Mr Liu's son from the passage?

A. He is friendly to his parents.

B. He is afraid of his parents.

C. He is impolite to his parents.

3. Why does Liu Zhenhua write to Mr Zhu?

A. To tell a story about his son.

B. To write a report.

C. To ask for help.

4. What does Mr. Liu's son always spend his time doing?

A. Doing his homework with his classmates.

B. Playing games or chatting online.

C. Doing everything his parents ask him to do.

5. What do you think is the possible answer from Mr. Zhu?

A. The father should give his son his freedom.

B. His father should communicate with his son patiently.

C. His father should beat (打) his son.

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