根据资本资产定价理论中的有效市场理论，资本市场可以分为弱式有效市场、半强式有效市场和

Read and choose. (阅读下边的短文，并回答问题)   

     My name is Tim. I'm a student in Class Two, Grade Five. I am twelve years old.

Now let me tell you something about my family.  My father is a doctor. He is writing an

e-mail in the study.  My mother is a teacher in a middle school. She is cooking dinner

in the kitchen. What am I doing? I am doing my homework.  Today is Friday; We have

a lot of homework to do.  After homework, I will play the piano.  I like playing the piano

very much.

1. Tim is a student in _____.             

A. Grade Two, Class Five           

B. Class Five, Grade Two

C. Class Two, Grade Five          

D. Grade Five, Class Two

2. Tim's father is a doctor.  He is _____.           

A. cooking dinner                      

B. drawing pictures

C. doing homework                    

D. writing an e-mail

3. -Where is Tim's father now?  

    -He is in the _____.             

A. hospital                              

B. study

C. kitchen                              

D. school

4. -Does Tim have a lot of homework to do?  

    -_____.             

A. Yes, he does                      

B. No, he doesn't

C. Yes, he is                          

D. No, he isn't.

5. -What does Tim like to do after homework?  

    -He likes _____.              

A. cooking dinner                      

B. washing clothes

C. writing e-mails                      

D. playing the piano

完成下列问答。

1. —What does he look like?

    —_______________________.

2. —______________________ _?

    —They are in front of the post office.

3. —What is the girl like?

    — ________________________.

4. —_________________________ ?

    —He's our English teacher.

5. What's in the schoolbag?

    —________________________.

6. —________________________ ?

   She's twenty-six years old.

7. How was your vacation?

    —________________________.

8. —_______________________ ?

    —I did my homework at eight o'clock.

9. — Did the waiter work hard? 

    —________________________.

10. —______________________ ? 

     —They are thirty dollars.

11. —How was the weather yesterday?

      —________________________.

12. —_______________________ ?

      —The boy in blue is Tom's brother.

DVD光驱只能读取DVD光盘。

资料：白磷着火点为40℃，红磷的着火点为240℃，五氧化二磷能污染空气，五氧化二磷易溶于水。

甲          乙       丙             丁

（1）在探究可燃物燃烧条件的课堂上，老师用甲图所示进行实验。实验时观察到的现象是：铜片上的红磷和水中的白磷不燃烧，铜片上的白磷             

（2）小明同学设计了乙、丙2个对比试验，完成了探究过程。得到以下实验事实：

① 不通空气时，冷水中的白磷不燃烧；②通入空气时，冷水中的白磷不燃烧③不通空气时，热水中的白磷不燃烧；④通入空气时，热水中的白磷燃烧。该实验中，能证明可燃物的温度必须达到着火点才能燃烧的事实是     （填序号，下同）；能证明可燃物通常需要接触空气才能燃烧的实验事实是        

（3）结合老师与小明设计的实验，小强设计了实验装置丁。小明与小强的实验都比老师的实验有个明显的优点，这个优点是       

下列属于国内探方编码的是（）

A、a

B、I

C、α

D、T1