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问题 填空题

若点A（5，-9）与点B（x，y）关于原点对称，则点B的坐标是______．

答案

根据中心对称的性质，可知：点A（5，-9）关于原点O中心对称的点B的坐标为（-5，9）．

故答案为：（-5，9）．

阅读理解

阅读理解。

The Opening Time of E-Library of Fangzhou Middle School

根据图示所提供的信息选择最佳答案。

1. The E -library of Fangzhou Middle School is open for _____ days a week.

A. three              

B .four                

C. five

2. All the students can read E - books in the E - library every day except on _____ and _____.

A. Monday; Thursday  

B. Monday; Friday        

C. Tuesday; Wednesday

3. _____ can be seen in the E -library at 11:15 on Wednesdays.

A. All the students            

B. Students in Grade Three  

C. Students in Grade Four

4. Which of the following is NOT true according to the chart above?

A. The E -library of Fangzhou Middle School is closed at 10:00 on Saturday and Sunday mornings.

B. The chart above is about the opening hours of E -library of Fangzhou Music School.

C. The E -library is open for the teachers only every Thrusday afternoon.

5. Students in Grade1-3 can spend _____ more hour( s)  reading in the E -library than the students 

    in Grade 4 on weekdays.

A. 1                  

B. 2                    

C. 3
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选择题

—____ is the pork?    

—It's five yuan a kilo.    [ ]

A．How many    

B．Which    

C．How much    

D．When
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