摘要: His sister g from Oxford with a degree in law.

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阅读理解。
    David's got a text message from his friend Sam. Can you understand it?
    7,15      20,15      20,8,5      16,1,18,11
    This message was in code (密码, 代码). How many letters are there in the English alphabet?
Twenty-six. So can you read it now?
A   B   C   D  E   F   G  H   I    J  K L M N O P Q R S T U ...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ...
    David decided to use a different code in his answer to Sam. This time, he was putting A instead of B,
B instead of C, and so on. His message to Sam shown on the right was very short. Can you understand?
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
B C D E F G H I J K L M N O P Q R S T U V W X Y Z A
    Sam guessed David's code, and he replied: ZESDQ, RBGNNK. When David's little sister saw the message,
she felt puzzled. She couldn't read it at all. But David was very happy that his sister couldn't read his message!
     Lots of people use codes to send secret messages. In a war, secrets are very important so soldiers often
send each other messages in code. Nowadays, we can use computers to make and break difficult codes. Even
before computers, people invented other machines to do this. 
    Here's a famous machine that Germans used in the Second World War (1941-1945). It's called the Enigma
Machine. The machines were very big, heavy and expensive. Every day they changed the codes automatically,
and this made it almost impossible for anyone to break the codes. The person sending a message had one
machine, and the person receiving the message had another.  
1.Sam asked David to go to the ______.
[     ]
A.park
B.house
C.museum
D.zoo
2.Sam told David to meet him ______.
[     ]
A.before breakfast
B.after school
C.after dinner
D.before school
3.Codes are used to keep something ______.
[     ]
A.new
B.old
C.secret
D.known
4.People will never know the meaning if they can't ______ the code.
[     ]
A.break
B.make
C.change
D.write
5.The best title of this passage is           .
[     ]
A.English Letters
B.Codes
C.Messages
D.Machines
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Tom was three years old. He liked to watch TV with his parents after supper, but his parents never let him stay long. Mother would say, “It’s eight o’clock now. It’s time for you to go to bed, Tom.”

“But why don’t you go to bed, too?” Tom always asked.

“We are adults (大人),” mother would say, “And adults go to bed late.”

One evening Tom asked his mother for an apple.

“But it’s too late,” his mother didn’t want to give him anything to eat at bedtime. “The apples are already asleep.”

“But not all of them, Mom.” Tom said, “The baby apples are perhaps asleep, but their parents are surely awake.”

1.Tom liked to watch TV with_________ after supper.  

A. his father and mother                B. his sister 

C. his grandparents                     D. his brother

2.His parents _______let him stay long.  

A. never        B. sometimes        C. often            D. usually

3.One evening Tom asked his mother for_________.

A. an egg       B. an apple             C. an orange    D. a pear

4.His mother didn’t want to give anything to him to eat________.

A. in the morning                   B. in the afternoon        

C. at bedtime                       D. at noon

5. From the story we know__________.

A. Tom was a quiet boy              B. Tom was a bad boy

C. Tom was a lazy boy                   D. Tom was a clever boy

 

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