The little girl asked her mother to buy her a nice pair of _________，so the mother went to some_________stores.

A.shoes;shoes                                     B.shoes;shoe

C.shoe;shoes                                      D.shoe;shoe

She is always ready to help people in trouble because she thinks it is a_________ .

A.business                                         B.reward

C.pleasure                                         D.favor

__________ the days went on，the situation there got worse.?

A.With                  B.Since                 C.While                D.As?

A

If you and your friends wish to share a secret, you can write it in code, and no one else will be able to read it. Codes are one way of writing in secret. Ciphers (密码) are another. In a code each word is written as a secret code word or code number. In a cipher each letter is changed.

Codes and ciphers have played an important role in the history of the world. Julius Caesar, the Roman ruler who defeated almost all the countries in Europe about 2, 000 years ago, used a cipher when he sent secret messages to his troops. During the American Revolution, George Washington's spies used a kind of code to send him information about the enemy before his military action. In World War Ⅱ, the Americans "broke", or figured out, Japan's most important naval codes and got enough information to destroy a powerful Japanese fleet(舰队).

Storekeepers use codes to mark their goods. The codes show how much was paid for the goods or when they were added to the stock. Businessmen use codes to hide plans from their business enemies. Sometimes personal letters or diaries are written in code. Many people enjoy figuring out codes and ciphers simply as a hobby.

In the 16th century, codes and ciphers were very popular among scientists. They wrote messages to each other in code so that no one else would learn their secrets. Geronimo Gardano, an Italian astrologer(占星家), mathematician, and doctor, invented the trellis cipher. He took two sheets of paper and cut exactly the same holes in each one. Then he sent one sheet, which he called a trellis, to a friend and kept the other for himself. Whenever he wanted to write a message, he put his trellis over a clean sheet of paper and wrote the secret message through the holes. Then he removed the trellis and filled the rest of the paper with words that would make sense. When his friend received it, he put his trellis over the writing and read the secret message.

What does the underlined word "trellis"mean?

A. A piece of paper with many small holes.          B. A machine with a lot of small holes.

C. A letter with unreadable words and sentences.   

D. A sheet of paper with groups of Arabic figures.

Which of the following statements is true?

A. Ciphers can be broken or figured out more easily than codes.

B. You could read some words in Geronimo' s letter without his trellis.

C. The first person who ever used a cipher in history was Julius Caesar.

D. Fondness of using codes was the hobby of the scientists in the 16th century.

The best title of this passage is________.

A. Codes and Ciphers                  B. Differences between Codes and Ciphers

C. History of Codes and Ciphers         D. Inventors of Codes and Ciphers

Everybody has one of those days when everything goes wrong. This is what happened to Harry.

He got up one morning very late because he had forgotten to wind up his alarm clock（闹钟）. He tried to shave（刮脸）quickly and cut himself. When he got dressed he got blood all over his clean shirt, so he had to find another one. The only other shirt that was clean needed ironing（熨）, so he ironed it. While he was ironing it, there was a knock at the door. It was the man to read the electricity meter（表）. He showed him where the meter was, said good-bye and found that the iron had burnt a hole in his shirt. So he had to wear the one with the blood on it after all. By this time it was very late, so he decided he couldn’t go to work by bus. He telephoned for a taxi to take him to work. The taxi arrived and Harry got in and began to read the newspaper.

In another part of the town, a man had killed a woman with a knife and was seen to run away in a taxi. When Harry’s taxi stopped outside his office, a policeman happened to be standing there. He saw the blood on Harry’s shirt, and took him to the police station. He was kept till 3 o’clock in the afternoon before the police were sure that he was not the man they wanted. When he finally arrived at the office at about four, his boss took a look at him and told him to go away and find another job.

6. Harry had       .

  A. a lucky day        B. an unlucky day

  C. a busy day         D. a good day

7. Put the following sentences into correct order according to the passage.

  a. The man who read the electricity meter came.

  b. Harry ironed his shirt.

  c. Harry got blood all over his clean shirt.

  d. There was a knock at the door.

  e. Harry wore the shirt with blood on it.

  A. a, b, c, d, e                B. b, a, d, c, e

  C. b, a, c, d, e                D. c, b, d, a, e

8. Why did Harry wear the shirt with blood on it?

  A. He had only one shirt.

  B. The only other needed ironing.

  C. The iron had burnt a hole in his clean shirt.

  D. He cut himself and got blood all over his shirt.

9. Harry was taken to the police station because       .

  A. his taxi stopped outside his office and a policeman happened to be there

  B. there was blood on his shirt and he was in a taxi

  C. a man killed a woman with a knife

  D. the murderer(杀人犯) was seen to run a away in a taxi

10. His boss told him to go away and find another job because       .

  A. he had been kept by the police

  B. there was blood on his shirt

  C. he was late for work

  D. he had killed a woman

不要站在水边,那儿很危险。(at the edge of)?

  ______________________________________________________________________

— What’s your favourite sport?

－Skiing. ____________. 

A. I get a kick out of it               B. I prefer it

C.I choose it                       D. I’m used to it

.Nothing can stop us from serving the people heart and soul，__________??

A.can it                 B.can’t it               C.can they             D.can’t they?

Li Ming，__________to the concert enjoyed it very much.?

A.I went with                                    B.with whom I went?

C.with who I went                              D.I went with him?

__________ with the size of the whole earth，the highest mountain doesn’t seem high at all.

A.When compared                              B.To compare?

C.While comparing                                   D.It compared?