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8. One of the major hazard for deep-sea divers is the “bend”. This condition is caused by gas bubbles forming in the bloodstream if the diver ascends too rapidly. The reason for this condition has to do with the saturation and desaturation of body tissues with various gases. At increasingly greater depths, the diver brathes air at higher perssures. This result in an increased quantity of air being dissolved in the bloodstream. Different body tissues are saturated with different gases from the air at different rates. When the diver ascends, oxygen is used by the body tissues, carbon dioxide is released quickly, and nitrogen remains. The nitrogen needs to be release gradually from the bloodstream and body tissues. If nitrogen is subjected to a too rapid pressure reduction,, it forms gas bubbles in the blood vessels. The bubbles become trapped in the capilaries. This prevents blood and oxygen from supplying necessary nutrients to body tissues, which consequently begin to die.

            Saturation and desaturation are affected by various factors such as the depth, length of time, and amount of exertion under water. There are other factors that a diver must take into account when determining a safe ascent rate. These include the diver’s sex and body build, the number of divers undertaken within the previous 12 hours, the time spent at the dive location befor the dive, and the composition of the respiration gas.

1. The passage is mainly about

A. how to calculate a safe depth when diving

B. how to determine saturation and desaturation rates

C. instructions for diving safely

D. the factors causing the bends in divers

2. According to the passage, gas bubbles

Trap the capillaries     

B. are gradually released from the tissues and bloodstream

C. block the supply of nutrients to body tissues.       

 D. are formed from compressed air

3. Which of the following does not affect the desaturation of body tissues?

A. The location of the diver

B. The number of the previous divers.

C. The composition of the gas being use.

D. The amount of activity under water

4. According to the passage, bends

A. is the major diving hazard             

B. reduced pressure in the bloodstream

C. is a condition caused by diving too quickly          

D. is a direct result of dying body tissues

5. According to the passage, which of the following is not true?

A. Air at higher pressure is taken in at greater depths                                   

B. More air is dissolved into the bloodstream at increasing depths

C. Carbon dioxide stays in the body when the diver ascends.                      

D. Body tissues are saturated at different rates        

 

6. In Britain, the weather is very varied; people never know what it will be like the next day.

The summer is warmer than the winter, but even in summer the average temperature is only 16 degree Celsius. Sometimes the sun shines, but at other times, the sky is covered in cloud, and it often rains.

In winter it is sometimes very cold, especially in the north of the country. The temperature may fall below 0 degree Celsius  and there is often snow and ice.

The best season of the year is probably late spring. At this time of year the weather is often sunny and quite warm: the countryside looks very green, and there are wild flowers everywhere.

1. Is the weather  in Britain very changeable?           

................................................................................................

2. Where is the coldest area in winter in Britain?

...................................................................................................................................................................

3. Which is the best season of the year in Britain?

...................................................................................................................................................................

4. What is the weather like in late spring in Britain?

...................................................................................................................................................................

5. When can people see wild flowers everywhere in Britain?

...................................................................................................................................................................

4. In the United States today there are more than half a million criminals serving time in prison. Most prisoners are male high-school dropouts between the ages of 18 and 19. Even more shocking in the fact that the number and rate of imprisonment has more than doubled over the past twenty years, and the recidivism - that is, the rate for rearrest - is more than 60 percent.

Although the stated goal of most prison systems, on both federal and state levels, is to rehabiliatate the inmates and reintagrate them into society, the systems themselves do not support such a result. Prisons are usually geographically or psychologically isolated and terribly overcrowded. Even in the more enlightened prisons, only one-third of the inmates have vocational training opportunities or work release options.

If prisons are indeed to achieve the goal of rehabilitating offenders, then the prisons themselves will have to change. First, they will have to be smaller, housing no more than five hundred prisoners. Second, they will have to be built in or near population centers with community resources available for gradual reintegration into society. Finally, prison programs must be restructured to include work release and vocational and academic training that promises carry over into the inmate’s life after release. Models for such collaborative efforts between the criminal justice system and the community already exist in several hundred half-way houses throughout the country. 

1. What is the author’s main point?

A. Prisons must be restructured if they are to accomplish the goal of rehabilitation.

B. Models for community collaboration have been successful.

C. Most of the criminals serving time in prison are high-school dropouts.

D. The criminal justice system must establish a better goal.

2. According to the author, how many prisoners are offered training or work release?

A. None                      B. 33.33 percent                      C. 50 percent                           D. 60 percent

3. The author mentions all the following as necessary to prison reform EXCEPT

A. newer buildings                                                      C. vocational   training                                   

B. smaller institutions                                                 D.collaboration with the community

4. The word “recidicism” in line 4 refers to

A. all people who are imprisoned                               C. people who drop out of high school

B. people who return to prison after release               D. people who have been in prison for a long time

5. The paragraph following this passage most probably discusses

A. the goals of most state and federal prisons                       

B. the cost of prison reform

C. examples of models for community collaboration

D. problems with the current criminal justice system

3. Because writing has become so important in our culture, we sometimes think of it as more real than speech. A little thought, however, will show why speech is primary and writing secondary to language. Human beings have been writing for at least 5000 years; but they have been talking for much longer, doubtless ever since there have been human beings.

            When writing did develop, it was derived from and represented speech, but imperfectly. Even today there are spoken languages that have no written form. Furthermore, we all learn to talk well before we learn to write; any human child who is not severely handicapped physically or mentally will learn to talk: a normal human being cannot be prevented from doing so. On the other hand, it takes a special effort to learn to write; in the past many intelligent and useful members of society did not acquire the skill, and even today many who speak languages with writing systems never learn to read or write, while some who learn the rudiments of those skills do so only imperfectly.

            To affirm the primacy of speech over writing is not, however, to disregard the latter. One advantage writing has over speech is that it is more permanent and makes possible the records that any civilization must have. Thus, if speaking makes us human, writing makes us civilized.

66. The author of the passage argues that ________

A. writing has become too important in today’s society.

B. speech is more basic to language than writing.

C. everyone who learns to speak must learn to write.

D. all languages should have a written form.

67. According to the passage, writing ________

A. is imperfect, but less so than speech.         B. represents speech, but not perfectly.

C. developed from imperfect speech.             D. is represented perfectly by speech.

68. In the author’s judgment ________

A. writing has more advantages than speech.

B. speech is essential but writing has important benefits.

C. speech conveys ideas less accurately than writing does.

D. writing is more real than speech.

69. In order to show that learning to write requires effort, the author gives the example of ________

A. people who learn the rudiments of speech.  B. people who speak many languages.

C. intelligent people who couldn’t write.          D. severely handicapped children.

70. According to the author, one mark of civilized society is that it ________

A. affirms the primacy of speech over writing.         

B. affirms the primacy of writing over speech.

C. teaches its children to speak perfectly.     

D. keeps written records.

1. After inventing dynamite, Swedish - born Alfred Nobel became a very rich man. However, he foresaw its universally destructive powers too late. Nobel preferred not to be remembered as the inventor of dynamite, so in 1895, just two weeks before his death, he created a fund to be used for awarding prizes to people who had made worthwhile contributions to mankind. Originally there were five awards: literature, physics, chemistry, medicine and peace. Economics was added in 1968, just sixty - seven years after the first award ceremony.

Nobel's original legacy of nine million dollars was invested, and the interest on this sum is used for the awards  which vary from $30,000 to  $125,000.

Every year on December 10, the anniversary of Nobel's death, the awards (gold medal, illuminated diploma, and money) are presented to the winners. Sometimes, politics plays an important role in the judges' decisions. Americans have won numerous science awards, but relatively few literature prizes.

No awards were presented from 1940 to 1942 at the beginning of World War II.  Some people have won two prizes, but this is rare, others have shared their prizes.

1. When did the first award ceremony take place?

A. 1895                       B. 1901                       C. 1962                       D.1968

2. Why was the Nobel prize established?

            A. to recognize worthwhile contributions to humanity

            B. to resolve political differences

            C. to honor the inventor of dynamite

            D. to spend money

3. In which area have Americans received the most awards?

            A. Literature               B. Peace                      C. Economics  D. Science

4. Which of the following statements is not true?

            A. Awards vary in monetary value

            B. Ceremonies are held on December 10 to commemorate Nobel's invention

            C. Politics can play an important role in selecting the winners

            D. A few individuals have won two awards

5. In how many fields are prizes presented?

            A.  2                            B.   5                           C.  6                            D. 10