It was a very hot summer morning but inside the Pyramid( 金字塔 ) it was quite cool. Tom and his classmates had just walked into the Pyramid and were very surprised to see what it was like. They went to the Queen’s Room. They saw a passage ( 通道 ). At the end of it there was a small room. They were told that they couldn’t go into that room, because it was newly found. Tom looked towards the passage. Two of his friends Jason and Peter saw him and said “Don’t get into trouble, Tom!”.

As soon as nobody was looking, Tom went up the dark passage, opened the door and walked in. Suddenly the door closed behind him. The room was very dark, but luckily Tom had brought a torch ( 手电筒 ) with him. When he turned it on, he saw two white faces in front of him. “Oh, no!” he cried and ran to the door. He quickly opened it and went down the passage to the Queen’s Room as fast as he could. As soon as Tom disappeared, Jason and Peter took the pieces of white cloth( 布 ) off their faces and walked slowly down the passage. They couldn’t stop laughing. “That will teach him a lesson,” said Jason.

51. Why did Jason and Peter say “Don’t get into trouble, Tom!”? A. Because they knew that Tom was thinking of getting into that small room. B. Because Tom had got into trouble earlier that day. C. Because Tom was very much afraid. D. Because they were not good friends. 52. What did Tom do when the door closed behind him? A. He was afraid and cried loudly. B. He waited quietly in the dark. C. He turned on his torch. D. He ran away quickly.

53.The word “ disappeared” most possibly means ______. A. found the secret B. couldn’t be seen C. cried loudly D. closed the door 54. Jason and Peter laughed because ________. A. they had got Tom into trouble B. they liked telling jokes C. they had played a joke on Tom D. Tom didn’t listen to them.

» Once there was no zero( 零 ). To write the number sixty-three, people wrote 63. To write six hundred and three, people wrote 6 3. The space was there to mean “not any” tens. Sometimes people did not remember the space. It was hard to see and to read. Later people used a dot( 点 ) to hold the space. Six hundred and three looked like this 6·3. But the dot was hard to see.So people put a circle around it like this 6 ⊙ 3. Then people could see the dot. They remembered the space. At last,only the circle around the dot was used.It was like a zero. This is one story of how the zero came to be used. Now zero has many important uses. Zero tells how many. Can you tell some other ways zero is used?

根据以上短文内容, 判断下列各句是否符合短文内容。符 合短文. ( ) 33. When people wrote eight hundred and nine, they would put a cirle with a dot in it between 8 and 9. ( ) 34. Zero came from the circle around the dot. ( ) 35. Zero isn’t useful in our life. ( )