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1.        (科学上的) studies have shown that enough sleeping is good for our health.

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One day in summer,little Jack was playing on the beach with his father. Suddenly,he saw a little tortoise moving slowly on the sand. He started to look at it carefully and began to touch it with his hand. To his surprise,the tortoise stopped moving. It pulled in its head and legs,and closed its shell tightly. He touched it again but the tortoise didn't move at all. Jack became angry. He used a stick and tried to force(强迫) it to open.

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(   ) 26. One day Jack and his father were playing

   A. on the beach   B. in the zoo   C. on the hill   D. in the garden

(   ) 27. Jack used a stick to the tortoise.

   A. save   B. feed

   C.  open   D. close

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   A. killed it   B. put it in a bag

   C.  cooked it   D. threw it into the sea

(   ) 29. After the tortoise got near the fireplace,it began to move a little. 

   A. warm   B. cool

   C.  thirsty   D. hungry

(   ) 30. The story tells us that .

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   B.people won't do things we want them to do

   C.we can force people to do things they don't like

   D.we can't force people to do things they don't like

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