閱讀理解

　　How many kinds of shapes(形狀)can you name?If something is round, what do you call it?You call it a circle．What can you see around you that looks like a circle?

　　Another shape is square．A square has four sides．Each side is the same length(長度)．A square has four corners called right angles(直角)．

　　A triangle is also a shape．The prefix“tri”on the base word“angle”means“three”．A triangle always has three sides and three angles．

　　All the pages of your textbooks have four square corners, but the pages are not square．Can you tell why not?It is because the sides of each page are longer than the ends．Shapes like this are rectangles．You can say that they are rectangular shapes．

　　If you are given a piece of paper which is a rectangular shape, can you make the paper into a square?The answer is“Yes”, and it seems not so difficult．Now fold the square．What shape have you got?Do you think it's very interesting?

(1)

You usually learn the knowledge discussed in this passage in ________ classes．

[　　]

A．

chemistry

B．

math

C．

history

(2)

Picture ________ is a rectangle．

[　　]

A．

B．

C．

(3)

Picture ________ shows the right marks of“side & end”according to the passage．

[　　]

A．

B．

C．

(4)

Fold a square in the way of the picture shown on the right, you may get a shape of ________．

[　　]

A．

square

B．

rectangle

C．

triangle

(5)

In this passage, we've learned about ________ kinds of shapes．

[　　]

A．

three

B．

four

C．

five

答案：1．B;2．A;3．A;4．C;5．B;
解析：

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