专业四级 专业四级模拟18          

 
Part Ⅰ WRITING  (开始Part Ⅰ WRITING计时)

Direction: Write on ANSWER SHEET ONE a composition of about 150 words on the following topic:
 
  
PEACE AND DEVELOPMENT You are to write in three paragraphs. In the first paragraph, state clearly your viewpoint. In the second paragraph, support your view with details. In the last paragraph, bring what you have written to a natural conclusion. Marks will be awarded for content, organization, grammar and appropriacy. Failure to follow the instruction may result in loss of marks.

 
 
 
SECTION B NOTE-WRITING [10 min.] Direction: Write on ANSWER SHEET ONE a note of about 50-60 words on the following situation: You, Mark or Sally, have just heard that your friend, Danny, has gained admittance as a graduate student. Write a note to him, offering him your sincere congratulations. Marks will be awarded for content, organization, grammar and appropriacy.

 
 
(结束Part Ⅰ WRITING计时) 

 
Part Ⅱ DICTATION  (开始Part Ⅱ DICTATION计时)

Direction: Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be read at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 to 20 seconds. The last reading will be read at normal speed again and during this time you should check your work. You will be then given 2 minutes to check through your work once more. Please write the whole passage on ANSWER SHEET TWO.
 
 

 
 
(结束Part Ⅱ DICTATION计时) 

 
Part Ⅳ CLOZE  (开始Part Ⅳ CLOZE计时)

Direction: Decide which of the choices given below would correctly complete the passage if inserted in the corresponding blanks. Mark the correct choice for each blank on your answer sheet.
 
 

 
26.  
 A) always   

 B) often   

 C) necessarily    

 D) literally   

 
27.  
 A) words   

 B) behavior   

 C) deeds    

 D) explanation   

 
28.  
 A) started   

 B) began   

 C) originated    

 D) came   

 
29.  
 A) solving   

 B) facing   

 C) faced with    

 D) confronted   

 
30.  
 A) gazes at   

 B) plays with   

 C) throws    

 D) tosses   

 
31.  
 A) angles   

 B) ways   

 C) directions    

 D) aspects   

 
32.  
 A) Since   

 B) As for   

 C) Because of    

 D) Therefore   

 
33.  
 A) still   

 B) no longer   

 C) also    

 D) more often   

 
34.  
 A) retained   

 B) reminded   

 C) remained    

 D) restrained   

 
35.  
 A) try   

 B) are trying   

 C) trying    

 D) have been trying   

 
36.  
 A) resulted to   

 B) caused   

 C) came to    

 D) led to   

 
37.  
 A) The other   

 B) Another   

 C) A similar    

 D) A different   

 
38.  
 A) intuition   

 B) tuition   

 C) institution    

 D) imagination   

 
39.  
 A) by contrast   

 B) on the contrary   

 C) by the way    

 D) moreover   

 
40.  
 A) better   

 B) stronger   

 C) softer    

 D) milder   

 
(结束Part Ⅳ CLOZE计时) 

 
Part Ⅴ GRAMMAR AND VOCABULARY  (开始Part Ⅴ GRAMMAR AND VOCABULARY计时)

Direction: There are twenty-five sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that correctly completes the sentence. Mark your answers on your answer sheet.
 
  
41. He has ______ that it is difficult for him to travel.

 A) too heavy a work load    

 B) a too heavy work load    

 C) so heavy a work load    

 D) such heavy a work load   

 
 
42. If ______ calls, tell ______ I'm out but take ______ name and address.

 A) anyone ... them ... their    

 B) someone ... him ... his    

 C) someone ... them ... their    

 D) one ... him ... his   

 
 
43. ______ I'll marry him all the same.

 A) Whether he being rich or poor    

 B) He be rich or poor    

 C) He being rich or poor    

 D) Be he rich or poor   

 
 
44. She said that she only regarded you as a good friend. That ______ told you that she would not marry you.

 A) as good as    

 B) as well as    

 C) the same as    

 D) as equal as   

 
 
45. We walked as fast as we could, ______.

 A) to hope to catch the 9:30 train    

 B) hoping to catch the 9:30 train    

 C) to hope catching the 9:30 train    

 D) hoping catching the 9:30 train   

 
 
46. Jack had to change ______ in Birmingham.

 A) a train    

 B) the train    

 C) another train    

 D) trains   

 
 
47. -- How do you like my new car? -- I like it, but would you please ______ park it on the road?

 A) not to    

 B) not    

 C) don't    

 D) /   

 
 
48. He wrote the article much longer than ______.

 A) necessary    

 B) being necessary    

 C) was necessary    

 D) that was necessary   

 
 
49. -- Could you give this book to Mr. Chen? -- Certainly, ______ him about something else in any case, so it won't be any bother at all.

 A) I'll see    

 B) I see    

 C) I can see    

 D) I'll be seeing   

 
 
50. ______ their assistance, we would be in serious difficulty.

 A) If it is not for    

 B) Be it not for    

 C) It being not for    

 D) Were it not for   

 
 
51. There were two small gatherings, each ______ some students.

 A) was attended    

 B) attending    

 C) was attended by    

 D) attended by   

 
 
52. These are the limits ______ it is impossible to go.

 A) which    

 B) by which    

 C) where    

 D) beyond which   

 
 
53. Workers and peasants ______ 80 to 90 per cent of China's population.

 A) consist of    

 B) is consisted of    

 C) comprise    

 D) make up   

 
 
54. The ______ of opinions among the members is hard to achieve.

 A) consensus    

 B) censure    

 C) continence    

 D) compact   

 
 
55. A thought ______ me that we ought to make a new arrangement.

 A) occurred    

 B) struck    

 C) turned to    

 D) struck to   

 
 
56. The child shows a great ______ for learning languages.

 A) genius    

 B) skill    

 C) faculty    

 D) aptitude   

 
 
57. He left home without his wife's ______.

 A) knowing    

 B) knowledge    

 C) acknowledge    

 D) learning   

 
 
58. Premier Zhou Enlai was the ______ leader of the Chinese people.

 A) lovable    

 B) lovely    

 C) loved    

 D) beloved   

 
 
59. The dog is trained so well that he is ______ human.

 A) almost    

 B) nearly    

 C) practically    

 D) as well as   

 
 
60. His plan sounds ______, so you'd better carry it out.

 A) useful    

 B) worthy    

 C) feeble    

 D) feasible   

 
 
61. With 30 people wanting the job, the employer could afford to be ______ in his choice.

 A) elective    

 B) selective    

 C) free    

 D) exclusive   

 
 
62. It's nice to go on holiday and be completely ______.

 A) careless    

 B) carefree    

 C) untroubled    

 D) irresponsible   

 
 
63. I must go now. ______, if you want that book, I'll bring it next time.

 A) By accident    

 B) Incidentally    

 C) By incident    

 D) Accidentally   

 
 
64. With the expensive furniture and carefully-chosen color scheme the room looked quite ______.

 A) luxury    

 B) luxurious    

 C) luxuriant    

 D) convenient   

 
 
65. People in different countries must try hard to understand each other, and ______ misunderstanding.

 A) do away    

 B) clear of    

 C) clear away    

 D) clear up   

 
(结束Part Ⅴ GRAMMAR AND VOCABULARY计时) 

 
Part Ⅵ READING COMPREHENSION  (开始Part Ⅵ READING COMPREHENSION计时)

Direction: In this section there are four passages followed by fifteen questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the one that you think is the correct answer. Mark your choice on your answer sheet.
 
 
TEXT A This anthology is dedicated to the proposition that historical writing can be literature. In compiling selections for it, I chose writings distinguished as much for their literary merit -- for the human drama they chronicle, the enigmas they capture, and the truths they imply -- as for their analytical explanations: I deliberately sought biographical portraits, dramatic narratives, and artful essays by some of our best literary craftsmen. These writings portray the American past as a story of real people who actually lived, who struggled, enjoyed triumphs, and suffered failures and heartbreaks just like people in our own time. Thus Portrait of America is an attempt to capture the living past. It is, in the words of Aldous Huxley, an effort "to render, in literary term, the quality of immediate experience." The anthology is intended for use largely in college survey courses. It could be utilized as a supplement to a textbook or to a list of paperback readings. Or, for instructors who provide their classes with detailed, comprehensive lectures and who find a textbook redundant and a paperback list too long, Portrait of America could serve as the basic reading. There is much in the way of thought-provoking material gathered here: essays replete with ideas, narratives and biographies which capture real-life situations, and eye-witness accounts of slavery and the race issue in antebellum America that provide a gripping sense of immediacy. Furthermore, as I chose secondary materials, I tried not to compromise modern historical thinking just to get a provocative selection. For example, I chose the works of David Donald and Kenneth M. Stampp because their accounts of Reconstruction are both imaginatively presented and modern in their approach. Generally, this is the guideline I followed in compiling the entire volume, although my first criterion was always that selections must be artfully composed and suffused with human understanding. My feeling is that, since college survey audiences are not professional ones, they might enjoy reading history if it were presented in exciting and palatable form. I hope Portrait of America does just that.

 
66. The author chose not writings for ______ 

 A) their enigmas and truths.    

 B) their literary excellence and analytical explanations.    

 C) their triumphs and failures.    

 D) their living past.   

 
67. This anthology can be used ______ 

 A) for teachers who find a textbook not needed.    

 B) for teachers who get a too long paperback list.    

 C) as an addition to a textbook.    

 D) for teachers who give detailed speech to their students.   

 
68. Which of the following statements is not the author's standard in choosing writings? 

 A) The selections should be artfully composed.    

 B) The selections should be full of human understanding.    

 C) The selections must be modern in their writing method.    

 D) The selections must be put and expressed in a realistic way.   

 
69. In the first paragraph the author quoted what Aldous Huxley said in order to show ______ 

 A) how people in the past suffered.    

 B) the purpose of his writing this book.    

 C) his figurative skills.    

 D) the implications of the selections.   

TEXT B Academy Awards, or Oscars, are given annually in the United States by the Academy of Motion Picture Arts and Sciences for excellence in the creation and production of motion pictures. First presented in 1929, the Academy Awards are among the film industrys most coveted prizes. The entire academy membership participates in voting for the annual awards. In most award categories a maximum of five entrants are first nominated by the academy members who work in that particular field. From among these nominees all academy members select the winners by secret ballot. These winners are publicly announced at a formal meeting each spring. One hour of the 1929 awards ceremony was broadcast on radio, and from 1944 through 1969, the entire ceremony was broadcast on the radio. Television broadcast began in 1953 and today attract a worldwide audience. The gold-plated bronze human figure, which is 34.3 cm high and weighs 3.9 kg, was created by American sculptor George Stanley based on sketches made by American motion picture art director Cedric Gibbons. Awards are given for best motion picture, foreign language film; performances by male and female actors in both leading and supporting roles; achievement in direction; screenplays, both original and adapted from previous produced or published material and scores and songs composed for films. Other award categories include animated short subject, documentary feature, and documentary short feature. Excellence in technical disciplines is also recognized, including art direction, cinematography, costume design, make-up, film editing, sound and sound effects editing and visual effects. In addition, special or honorary awards are given for distinguished careers achievement.

 
70. If a person in the entertainment circle is nominated for the Academy Award in art direction, he must be selected by ______ 

 A) directors.    

 B) actors.    

 C) screen play writers.    

 D) audience.   

 
71. "The human figure" offered to winners is ______ 

 A) not much heavier than a common book.    

 B) made up of bronze, but is gold in color.    

 C) made up of bronze with a coating of gold.    

 D) a product made only by Stanley from design to creation.   

 
72. If a member of the academy is an actor, he can nominate ______ as an entrant for the Oscars. 

 A) a director or an actor    

 B) a director and an actor    

 C) only a director    

 D) only an actor   

TEXT C The University of California was chartered in 1868 and established at Berkeley in 1875. South Hall, an ivy-covered Gothic-revival building of red brick, is the only survivor of the nineteenth century campus buildings. Today, the Berkeley campus is the senior member of the nine-campus University of California System. Berkeley offers a full range of academic majors in programs ranging from bachelors degree programs through doctoral and professional degree programs. In a national survey published in fall 1992, Berkeley placed highest of all public university in a ranking that included five attributes: reputation, selectivity faculty resources, financial resources, and student satisfaction. More students who earn bachelors degrees at Berkeley complete Ph. Ds than graduates of any other university in the country. Undergraduate students can choose from more than 5,000 different courses and over 100 majors or they can design their own individual majors. The graduate division offers professional and academic degrees in more than 100 majors. Aiding students in their course work is a campus network of twenty-four libraries, including one especially for undergraduates. There are also many support facilities and services available, such as the Student Learning Center, financial aid counseling, housing assistance, graduate and professional school advising, and career placement assistance. The 1,200-acre campus stretches from downtown Berkeley through wooded hills that overlook San Francisco Bay. The city of Berkeley (population 105,000) offers the lively background of one of Americas more culturally diverse and politically adventurous small cities. The surrounding San Francisco Bay area provides an abundance of recreational and cultural events.

 
73. In paragraph one, the author mainly states about ______ 

 A) the greatness and wonderfulness of the Berkeley campus.    

 B) the Berkeley campus' ranking in all the public universities.    

 C) the history and the present situation of the Berkeley campus.    

 D) the overall impression of the Berkeley campus.   

 
74. There are more students graduated from Berkeley than students from any other university in gaining ______ degree. 

 A) MBA's    

 B) bachelor's    

 C) Ph. D's    

 D) master's   

 
75. From the essay, we can know that ______ 

 A) the Berkeley campus is the University of California.    

 B) the Berkeley campus is only an old branch of the University of California.    

 C) the Berkeley campus is an absolutely independent university, which is built in California.    

 D) the Berkeley campus is an independent college.   

 
76. Which is true according to the essay? 

 A) Now the Berkeley campus is the best public university.    

 B) You can finish bachelor's courses or Ph. D's courses but not master's courses.    

 C) The Berkeley campus does not do well in helping students in their studies.    

 D) The Berkeley campus is not far away from the city of San Francisco.   

TEXT D The inhabitants of Planet Earth have gone crazy for personal wireless communications. Globally, at the end of 1996 there were up to 140 million cellular subscribers and annual growth rates exceed 50 per cent. The future looks even brighter. "We have been working with predictions of 350 ~ 400 million for the year 2000, but we are now prepared to revise these upward. We may be closer to 450~ 500 million by then." Predicts president of Ericsson, "looking further we can see 550 million in five years time." This is a remarkable success story for an industry that is less than 20 years old. The majority of cellular subscribers are still using analog technology, but the last two years have seen a massive and decisive shift to digital. "I think you can say the analog era is over -- at least outside the U.S. market." Says Mika Vehvilainen, senior vice president, system of marketing and sales for Nokia, "If you look at Asia Pacific and Europe, the growth is now virtually all on the digital side." In the global digital cellular battle, Europes GSM (Global System for Mobile Communications) standard has emerged as the clear market leader. In excess of 200 operators in 130-plus countries have signed up for GSM -- and the number grows daily. As a result, rival digital technologies such as CDMA and TDMA face an uphill road.

 
77. There would be ______ million cellular subscribers in 1998. 

 A) less than 200    

 B) around 250    

 C) around 320    

 D) around 450   

 
78. According to the original prediction of Ericsson, there will be ______ million cellular subscribers by the year 2000. 

 A) 350~400    

 B) 400~450    

 C) 450~500    

 D) nearly 550   

 
79. The analog technology has been behind the times in ______

 A) U.S   

 B) Europe.   

 C) Europe and Asia Pacific.   

 D) the whole world.   

 
80. Which of the following can be inferred from the passage? 

 A) Digital technology and analog technology that are used in mobile phone can't exist at the same time.    

 B) Mobile Communication Industry is a new industry with a history of more than two decades.    

 C) Analog technology has been superseded completely by digital technology.    

 D) CDMA is a system based on digital technology.   

 
(结束Part Ⅵ READING COMPREHENSION计时) 

 
SECTION B SKIMMING AND SCANNING  (开始SECTION B SKIMMING AND SCANNING计时)

Direction: In this section there are seven passages followed by ten questions or unfinished statements. Skim or scan the passages as required and then mark your answers on your answer sheet.
 
 
TEXT E First read the following questions. 81. Whats the main idea of this passage? A. To describe the officials in former Federal Republic of Germany. B. To let readers know why amphibians cross the road. C. To show the animal-protecting moves in F. R. G. D. To arouse peoples care for animals such as frogs. 82. Why do amphibians cross the road? A. They dont want to lay their eggs where they live at other times. B. They want to find a good place where their young can live in water. C . They want to move for a change. D. They want to live without the danger of the shortage of oxygen. Now skim the passage below and answer the question In one country, at least, some frogs dont have to cross the road to get to the other side. They travel through tunnels built just for them. It all started when a college student in former Federal Republic of Germany discovered that thousands of amphibians -- mainly frogs, newts, and toads -- were being run over on the countrys highways. At breeding time, large numbers of the animals crossed the highways at certain spots. They had to reach ponds and streams to lay their eggs (Adult amphibians breathe air; the young, born with gills, can breathe only in water). Many never made it. The student told German officials about the problem, and the officials came up with a solution, amphibian underpasses. Today, more than 50 tunnels give amphibians a safe way to get to the other side of the road.

 
81. What's the main idea of this passage? 

 A) To describe the officials in former Federal Republic of Germany.    

 B) To let readers know why amphibians cross the road.    

 C) To show the animal-protecting moves in F. R. G.    

 D) To arouse people's care for animals such as frogs.   

 
82. Why do amphibians cross the road? 

 A) They don't want to lay their eggs where they live at other times.    

 B) They want to find a good place where their young can live in water.    

 C) They want to move for a change.    

 D) They want to live without the danger of the shortage of oxygen.   

TEXT F First read the following question. 83. Which one cannot be inferred from the passage? A. Before World War H , Japan had got more powerful carrier fleet than Britain. B. The attack on Pearl Harbor was the fuse of the Pacific War. C. At least, one carrier of the U.S. joined in the battle of Midway. D. After June, 1942, there were only two carriers left in Japan Navy. Now skim the passage and answer the question. After World War I major carrier fleets were built by the United States, Japan and Britain; in the 1930s tactical exercises were held by the U.S. Navy to study and improve efficiency of its carrier operations. By World War II, however, Japans carrier fleet was numerically and qualitatively superior to the American and British fleets in the Pacific. The use of six aircraft carriers by Japan to attack Pearl Harbor on December 7, 1941, opened the war in the Pacific. No American carrier were present during, the attack/ The major carrier battle of Midway of June 3~6, 1949, cost the Japanese four earners; American lost one, the Yorktown .

 
83. Which one cannot be inferred from the passage? 

 A) Before World War H , Japan had got more powerful carrier fleet than Britain.    

 B) The attack on Pearl Harbor was the fuse of the Pacific War.    

 C) At least, one carrier of the U.S. joined in the battle of Midway.    

 D) After June, 1942, there were only two carriers left in Japan Navy.   

TEXT G First read the following questions. 84. A ships captain calculated his vessels longitude in old days because he wanted to ______ A. have a science research with the longitude. B. know where he was and where he would go. C. check the theory of longitude. D. kill the time with it while there used to be nothing interesting for him at sea. 85. Which is the right statement? A. People used to use stars for calculation. B. The star catalogue complied by John Flamsteed is the most accurate in the world. C. The timepiece made by John Harrison could directly give right locations. D. Today, the observatory cant tell the accurate longitude any more. Now skim the passage and answer the question. The original reason for the R. G. Os (Royal Greenwich Observatory) creation was to try to solve the "longitude problem" -- in other words to work out a method by which a ships captain could calculate his vessels longitude at sea. The first Astronomer Royal. John Flamsteed, complied the most accurate star catalogue of his day as part of this attempt (though the solution was eventually provided by John Harrison, a clock maker who designed a timepiece that was robust enough to withstand the rigors of sea travel, and was thus able to substitute for the stars in the relevant calculations.) Today, the observatory is more concerned with issues like star formation and the origins of quasars -- but it still does world-respected science.

 
84. A ship's captain calculated his vessel's longitude in old days because he wanted to ______ 

 A) have a science research with the longitude.    

 B) know where he was and where he would go.    

 C) check the theory of longitude.    

 D) kill the time with it while there used to be nothing interesting for him at sea.   

 
85. Which is the right statement? 

 A) People used to use stars for calculation.    

 B) The star catalogue complied by John Flamsteed is the most accurate in the world.    

 C) The timepiece made by John Harrison could directly give right locations.    

 D) Today, the observatory can't tell the accurate longitude any more.   

TEXT H First read the following question. 86. According to the passage, which is incorrect? A. Many holidays grew out of religion in U. K. B. Nowadays, Easter has little religious significance. C. After Easter, daytime is longer and longer. D. For children, Easter only means a lot of eggs to eat. Now scan the passage and answer the questions. Most English holidays have a religious origin. Easter is originally the day to commemorate the Resurrection of Jesus Christ. But now for most people, Easter is a secular spring holiday, when everyone hopes to enjoy fine weather, when the days are lengthening fast, when trees are already in bud and leaf , and spring flowers appear, the most welcome of the year -- violets and primroses, daffodils and narcissi. For children, Easter means, more than anything else, Easter eggs or chocolate eggs.

 
86. According to the passage, which is incorrect? 

 A) Many holidays grew out of religion in U. K.    

 B) Nowadays, Easter has little religious significance.    

 C) After Easter, daytime is longer and longer.    

 D) For children, Easter only means a lot of eggs to eat.   

TEXT I First read the following question. 87. Which is not right according to the passage? A. The distinction between a public defender and a provided lawyer lies in the fact that the former is assigned by a government. B. There are no nations that have recognized the need for defense counsel in criminal cases. C. The person accused of felony has right to counsel though he is rich. D. In U. S., the poor persons that cannot afford legal expenses can have free counsels. Now scan the passage and answer the questions. Public Defender is a lawyer appointed by a local government to represent indigent persons who are accused of a crime and cannot afford legal fees. It is distinct from provided attorneys who may be assigned by courts to take on particular cases in some jurisdictions. Although the right to counsel varies from country to country, most have now recognized the need for defense counsel in criminal cases. Some form of assigned counsel is usually provided to the needy. The U. S. Supreme Court has upheld the right to counsel of all persons accused of felonies, regardless of their ability to pay. It declared in i963 that every poor defendant charged with a felony is entitled to free counsel as a matter of constitutional right. For any case that involves the possibility of imprisonment, the poor are guaranteed a publicly provided defense lawyer during the police questioning, pretrial hearing, trial, and appeal.

 
87. Which is not right according to the passage? 

 A) The distinction between a public defender and a provided lawyer lies in the fact that the former is assigned by a government.    

 B) There are no nations that have recognized the need for defense counsel in criminal cases.    

 C) The person accused of felony has right to counsel though he is rich.    

 D) In U. S., the poor persons that cannot afford legal expenses can have free counsels.   

TEXT J First read the following questions. 88. ______ should firstly be responsible for your headache from the cold ice cream. A. The throat B. The mouth C. The temple D. The forehead Now scan the passage and answer the questions. Why does eating ice cream sometimes give you a headache? This is an phenomenon called "referred pain". In which discomfort happens in one location but is felt somewhere else. In this case, the pain from the cold ice cream begins in the nerve endings at the back of the throat, then is felt up the nerve to the cheeks, nose, temples and forehead. You can avoid mixing pain with your ice cream pleasure by taking smaller bites, thus reducing the shocking stimulus in your throat. Eating your ice cream more slowly will also help since it warms a little in your mouth.

 
88. ______ should firstly be responsible for your headache from the cold ice cream. 

 A) The throat    

 B) The mouth    

 C) The temple    

 D) The forehead   

TEXT K First read the following question. 89. Why is there no need to worry whether the emergency exit can be opened? A. Because none except airhostesses knows how to open it. B. Because aeroplane doors open outwards. C. Because the airpressure outside the cabin is more than that inside. D. Because man doesnt have enough strength to open emergency exit in a flying plane. 90. We cant infer from the passage that ______ A. aeroplane doors open inwards. B. passenger plane cant fly beyond 30,000 feet. C. emergency exit loses its use in the altitude of 30,000 feet. D. 2.5 tons is an impossible weight for man to lift. Now scan the passage and answer the question. If someone opened the emergency exit on a plane, would everyone be sucked out? There is no need to worry, because the passenger would not be able to get the door to budge. Aeroplane doors open inwards. At 30,000 feet -- the typical altitude or a jet-- the external air pressure is only about three pounds per square inch. The cabin is pressurized to about 11 pounds per square inch. So, for every square inch of door there are three pounds pushing in and 11 pounds pushing out, giving a net outward pressure of eight pounds. If the emergency exit has a total surface of 650 square inches opening the door would be like lifting a two-and-a-half-ton-weight.

 
89. Why is there no need to worry whether the emergency exit can be opened? 

 A) Because none except airhostesses knows how to open it.    

 B) Because aeroplane doors open outwards.    

 C) Because the airpressure outside the cabin is more than that inside.    

 D) Because man doesn't have enough strength to open emergency exit in a flying plane.   

 
90. We can't infer from the passage that ______ 

 A) aeroplane doors open inwards.    

 B) passenger plane can't fly beyond 30,000 feet.    

 C) emergency exit loses its use in the altitude of 30,000 feet.    

 D) 2.5 tons is an impossible weight for man to lift.   

 
(结束SECTION B SKIMMING AND SCANNING计时)