Before a new type airplane goes service, every part of it is tested again and again. But there are two tests that are more of into important than the others.

   The first is called the “tank test”. A modern airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure(压力)on a small window is like a huge foot that is trying to get out. If a small part of the plane were to fail, the plane would explode in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger.

   The most dangerous test happens when the new plane is going through test flights in the air. The test must find out exactly what happens when the engines(发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.

By doing the “tank test”, the engineers can find out ____.

   A. the amount of air in the plane                B. the strength of the plane structure

   C. the pressure inside and outside the plane       D. the power of the airplane engines

What will happen to the plane under the “tank test”?

   A. It will be broken                        B. It will be made stronger.

   C. It will be filled with water.                D. It will be tested by pilots.

According to the text, why are test flights most dangerous?

   A. The plane may explode in the air          B. The pilot may lose control of the plane.

   C. The engines may be damaged.             D. Too much air may get into the plane.

What might be the most suitable title for the text?

  A. Two Important Tests on Airplane           B. The Importance of Flying Safety

  C. The Danger of Testing Airplanes            D. How Airplanes Are made and Tested

A university graduate described as a “respectable and intelligent” woman is seeking professional help after being convicted of （证明有……罪）shoplifting for the second time in six months．

       Ana Luz, recently studying for her PhD, has been told she could end up behind bars unless she can control the desire to steal from shops．

       Luz ,who lives with her partner in Fitzwilliam Road ,Cambridge ,admitted stealing clothes worth ￡9．95 from John Lewis in Oxford Street ,London ,on March 9．

       Phillip Lemoyne ,prosecuting（起诉）,said Luz selected some clothes from a display and took them to the ladies’ toilet in the store．When she came out again she was wearing one of the skirts she had selected ,having taken off the anti-theft security alarms（防盗警报装置）．

       She was stopped and caught after leaving the store without paying ,Mr Lemoyne said．

       He added that she was upset on her arrest and apologized for her actions．

       Luz,28, was said to have been convicted of shoplifting by Cambridge judges last October ,but Morag Duff, defending ,said she had never been in trouble with the police before that．

       “She is ashamed and embarrassed but doesn’t really have any explanation why she did this ,” Miss Duff said．“She didn’t intend to steal when she went into the store．She is at a loss to explain it．She is otherwise a very respectable and intelligent young lady．She went to her doctor and asked for advice because she wants to know if there is anything in particular that caused her to do this．”

       Judge David Azan fined Luz ￡ 50,  and warned : “You’ve got a criminal record．If you carry on like this ,you will end up in prison ,which will ruin your bright future you may have．”

       Luz achieved a degree in design at university in her native Spain ,went on to a famous university in Berlin , Germany for her master’s degree and is now studying for a PhD at Cambridge University ,UK．

What is Ana Luz’s nationality?

       A．American．     B．British．  C．Spanish． D．German．

What does the underlined sentence “She is at a loss to explain it” mean?

       A．In her opinion it was a loss to the clothes shops where she stole things．

       B．She doesn’t have any idea why she has the desire to steal from shops．

       C．She thinks it is a loss for her to explain why she stole things from shops．

       D．Personally she feels ashamed and embarrassed for her shoplifting actions．

Which of the following best explains the meaning of the word “shoplifting” used in the passage?

       A．Carrying goods in a lift for a shop．    

       B．Taking goods to the ladies’ toilet．

       C．Selecting some goods from a display． 

       D．Taking goods from a shop without paying．

From the passage we can learn that          ．

       A．Ana Luz is already got her PhD at Cambridge University ,UK

       B．Ana Luz is ashamed and embarrassed and knows why she often did so

       C．the university graduate will be put in prison if she steals in shops once more

       D．Phillip Lemoyne is the “respectable and intelligent” woman’s defense lawyer

A small man with a fat stomach got on the train at the last station before the frontier (边境). He carried a paper bag. And four feet ducks could be seen under the cover. The man found an empty seat, put the bag in the middle of the floor, took out a newspaper and began to read. Then a policeman came in. Of course he saw the bag with ducks' legs at once and said, "Whose is that bag?" Nobody answered. The policeman repeated the question, and said, "I'll have to take it away from the owner. Food mustn't be taken out of the country." "Well, then," said the small man with a fat stomach. "Hurry up and take it. We want to go home." The policeman took the bag and went on to the next carriage.

At the next station, when they were safely across the frontier, the small man got up, smiled at the other passengers and said, "I hope they'll enjoy the ducks' feet. The rest of the bag had nothing but rubbish in it." Then he opened his coat and pointed to another bag he was carrying under it. It was tied tightly (紧紧地) over the stomach, which was not really fat. "I have the rest of the two ducks here," he said. With these words, he got off the train. But while he was happily walking to the exit with the bag in his hands, a policeman came up to him, saying, "Hey, man! Foreign food mustn't be brought in."

The small man put the bag in the middle of the floor ___ .

A. so that he could make more room for himself

B. so that the policeman could find it easily

C. because the other passengers didn't like it

D. because there was not an empty seat in the carriage

The first policeman took the paper bag away because ___ .

A. he wanted to find the owner of the bag

B. he enjoyed the ducks feet in the bag

C. the bag was put in a wrong place in the carriage

D. food can't be taken abroad

The bag the policeman took away had nothing in it except ___ .

A. two ducks               B. rubbish

C. the ducks' feet and rubbish  D. the ducks' feet

In the end the small man ___ .

A. failed to take his food home

B. crossed the frontier with two paper bags

C. took the ducks safely home

D. hid his ducks under his coat again

A few months ago I was at a bus stop in town in the evening. The bus came on time and I took the window seat. The bus route was by the seashore and I was enjoying the breeze (微风) while watching the sea waves. After a few minutes the bus made its next stop. A young boy and a girl got on. They were standing on my left when the bus pulled off. I looked at them curiously and realized that all the window seats were occupied (占据). They could sit but not together. Suddenly a different wave passed through my body and my inner mind gave me the advice to get up. I got up and offered them my seat. The young lady smiled kindly and said thanks. I occupied another seat and we parted our ways. I don’t remember whether I got off the bus before them or not.

       Months passed by. Suddenly one day while I was standing at the same bus stop waiting some time for the bus to arrive I heard a voice.

       “Excuse me, Uncle.” I looked in the direction of the voice. It was a beautiful young lady.

       Puzzled, I said, “I do not recognize you.”

       She said, “Do you remember you gave us your window seat?”

       Puzzled, I said, “Maybe, but what is so great in that?”

       She said, “If you had not given your seat that day, perhaps I would have not sat with my friend. By sitting together it helped us bridge a misunderstanding that had been between us forever. Do you know we are getting married next month?”

       “Good! God bless both of you,” I replied.

       The young lady again said thank you and went on her journey. I realized the importance of giving that day.

Why were the young boy and the girl standing on the bus?

A. Because they wanted to enjoy the sea view.

B. Because they couldn’t sit together.

C. Because there were no empty seats.

D. Because they preferred to stand.

The underlined sentence in the first paragraph probably means that the author had a feeling that ______.

A. he wanted to do something special        

B. the sea wave made him upset

C. a wave from the sea flooded him  

D. he wanted to make a sea wave in his heart

From the story, we can conclude that ______.

A. small things can create great happenings in life

B. it is giving rather than receiving that matters

C. offering one’s seat to others may win respect

D. we sometimes forget what happened in the past

A recent study conducted by the Pine Street Foundation showed that a dog’s nose may have the ability to detect cancer. A dog’s nose, which was the “medical device” used as part of the research, is believed to be among the world’s most powerful olfactory(嗅觉的) sensors. The study was conducted with 169 subjects 55 of which had been diagnosed as having lung cancer, 31 have breast cancer and 83 control subjects——people without cancer. During the study, five professionally trained scent dogs were used to distinguish between the breath samples of cancer patients and those who were healthy. With an average of 90% accuracy, the research was deemed a success.

The Pine Street Foundation conducted its research on the belief that cancer cells give off a different type of metabolic(新陈代谢) waste product than normal cells. According to the study, the difference is so great that it can be detected by a dog’s sense of smell, including both early and late stages of the disease.

In the conclusion of the study the Pine Street Foundation said that even ordinary dogs may be trained to identify the presence of cancer with only a breath sample. The organization also said that dogs can recognize the disease with astonishing amount accuracy and, finally, that the dog’s detection was not hindered(妨碍) by the presence of age, smoking or stage of cancer.

The Pine Street Foundation plans to continue their research and is currently seeking funding to launch new studies.

If we want to add several different detecting examples to the passage, we should write them

        __________.

       A．between paragraph 1 and paragraph 2    B．between paragraph 2 and paragraph 3

       C．between paragraph 3 and paragraph 4    D．before paragraph 1 or after paragraph 4

The best title for this passage might be ______.

       A．Dogs may smell cancer   B．Why dogs can smell cancer

       C．A Study on dogs’ special ability     D．A study on breast cancer

Dogs can smell cancer because ____________.

       A．they can detect faster than man      B．their sense of smell is very sensitive

       C．dogs metabolize the food slowly     D．patients give off bad smell

People can know from the passage _________.

       A．all dogs can be used to smell cancer

       B．it’s not easy to find out cancer in the early stage

       C．most of the research experiments are successful

       D．dogs detect cancer by breathing and feeling