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问题 连线题

将两个相等的数量连起来。

7.08立方米                           24.5平方分米 

470立方厘米                         7080立方分米

0.245平方米                          0.47升

答案

7.08立方米——7080立方分米；470立方厘米——0.47升；0.245平方米——24.5平方分米

填空题
已知
lim
n→∞
3n
3n+1+an
=
1
3
，则a的取值范围为______．
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单项选择题

(Ⅰ)

In the dining room of my grandfather’ s house stood his heavy clock. Meals in the dining room were a (21) for our four generations to become one. My grandfather’ s clock always stood like a trusted old family friend, (22) us playing jokes and tellingstories, which was already a (23) of our life.

When I was a child, the old clock interested me. I watched and listened to it during (24) I was surprised how at (25) times of the day, the clock would strike three times, six times or more, with a wonderful great (26) that echoed throughout the house. The clock chimed year after year, a part of my (27) , a part of my heart.

Even more (28) to me was my grandfather’s special action each day. He meticulously (29) the clock with a special key each day. The key was magic to me. It (30) our family’ s magnificent clock ticking and striking all year round.

27（）

A. memories

B. minds

C. comfort

D. information
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