问题 填空题

下表是元素周期表的部分信息,补充完整.

1H

2______

3Li

______

4Be

5B

6C

______

7______

8______

9F

10Ne

______

1l______

12Mg

______

13A1

14Si

15P

______

16S

17C1

18Ar

19K

______

20Ca

答案

原子序数为2的元素为氦元素,其元素符号为He,

原子序数为3的元素为Li元素,其名称为锂,

原子序数为6的元素为C元素,其名称为碳,

原子序数为7的元素为氮元素,其元素符号为N,

原子序数为8的元素为氧元素,其元素符号为O,

原子序数为10的元素为Ne元素,其元素名称为氖,

原子序数为11的元素为钠元素,其元素符合为Na,

原子序数为12的元素为Mg元素,其元名称为镁,

原子序数为15的元素为P元素,其元素名称为磷,

原子序数为19的元素为K元素,其元素名称为钾,

故答案为:He;锂;碳;N;O;氖;Na;镁;磷;钾.

阅读理解

阅读理解。

     There is a photo on Becky's desk. It is a picture of her family. There are four people in it. 

     The man is her father. He is 38 years old. He can speak Chinese. There is a woman behind Becky. She

  is Becky's mother. She is 37 years old. She can't speak Chinese, but she speaks English. They're

  teachers. They work in a school. There is a boy in the picture, too. He is Becky's brother. His name is

  Jack. He is twelve years old. He can play football and ride a bike. He has got an English friend. Her

 name is Betty.

     Becky and her brother are in the same school, but they aren't in the same grade. They look like their

 mother. They are American. It's a big family.

1. _____ can speak Chinese.

    A. Becky's father                        

    B. Becky's mother

    C. Becky's brother                    

    D. Becky

2. Becky's mother is _____ years old.

    A. 38                

    B. 37            

    C. 35                  

    D. 36

3. Jack's friend is _____.

    A. American                            

    B. Japanese

    C. English                                

    D. Chinese

4. Becky and her brother are _____.

    A. in the same school but not the same grade

    B. in the same school and the same grade

    C. in the same school and the same class

    D. in the same grade but not the same class

5. Becky and Jack look like _____.

    A. their parents                  

    B. their grandparents

    C. their father                    

    D. their mother

单项选择题