问题 解答题

已知一个等腰三角形的周长是17cm,一条边长是5cm,求这个等腰三角形另外两条边的长.

答案

∵等腰三角形的周长是17cm,一条边长是5cm,

∴当5cm为底时,其它两边都为6cm,5cm、6cm、6cm可以构成三角形;

当5cm为腰时,其它两边为5cm和7cm,5cm、5cm、7cm可以构成三角形.

∴另两边是6cm、6cm或5cm、7cm.

答.这个等腰三角形另外两条边的长6cm、6cm或5cm、7cm.

阅读理解

阅读理解。

     When I was a child, I could not wait to see the world. I grew like the spring flowers in the garden.   

     When I was a teenager, I could not wait to leave home. I did not want to follow any rules, and I was

as angry as the burning sun in the summer sky.   

      But then, I learned to think carefully before doing anything. Both good and bad things in the past became

parts of my life, like autumn harvests for a farmer.   

      Now I am old. My body is weak, but my mind has become strong and clear because of those experiences

in my younger days. I am like a winter leaf, ready to take a good rest.   

      These are the four seasons of my life.

                                                                                                                   Elizabeth Owen

                                                                                                                   July 10, 2010

harvest  收获  leaf  叶子 likely 可能

1. What does four seasons mean in the reading?

A. Four times of life.

B. Four parts of the year.

C. Four parts of the body.

D. Four kinds of weather.

2.  Which is most likely true about the writer?

A. She is wiser than before.

B. She has a strong and healthy body.

C. She enjoys growing flowers in her garden.

D. She tried hard to forget what happened in the past.

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