55. According to the passage， travel medicine in Britain is_______ A. not something that anyone wants to manage. B. the responsibility of the government. C. administered by private doctors. D. handled adequately by travel agents. 56. The main purpose of travel companies‘ dealing with travel medicine is to_______ A. prevent people from falling iii. B. make money out of it. C. give advice on specific countries. D. get the government to pay for itl 57. In Behren’s opinion the question of who should run travel medicine________ A. is for the government to decide. B. should be left to specialist hospitals. C. can be left to travel compames. D. has no clear and simple answer. 58. People may think better of travel medicine if_______ A. it is given more resources by the government. B. more accurate information on its value is available. C. the government takes over responsibility from the NHS. D. travelers pay more attention to the advice they get.

　　Questions 59 to 62 are based on the following passage：

　　In a recent survey， 25 per cent of Americans said they believed that NASA （US National Aeronautics and Space Administration） had faked landingon the moon and humans had yet to walk upon its surface. Why do so many people believe such a foolish idea and is there any real evidence to support it？

　　Perhaps the most persuasive evidence that the Apollo missions were faked comes from inconsistencies in the photographs and films taken on the moon. Shadows in many of the pictures are cast not in straight parallel lines as from the Sun but as if they were from a nearby floodlight. The list Of Apollo inconsistencies goes on and on， and so does NASA‘s explanations for them.As with most conspiracy theories， it’s just a case of who you want to believe. So is there any unquestionable evidence that the Apollo missions really took place， that the most momentous landmark event in human history actually happened？ Luckily the answer is in the rocks. The Apollo missions returned 382 kilograms of rock and there is one thing that is absolutely clear： They are not from Earth. The oldest Apollo rocks， for example， are 4.44billion years old and thus formed some 640 million years before the oldest rocks found on Earth. The great age of the lunar rocks is because the moon， unlike our planet， is geologically dead. There would be no way to fake these rocks. Perhaps then the Apollo samples really aren‘t Earth rocks at all but some rare meteorite cleverly usedby NASA？ However， the oxygen they contain is very different from known meteorites （except those from the moon） and similar to that of the Earth.

　　59. The word fakecan be replaced by __ A. fate B. counterfeit C. taken D. supported 60. Why is it sure that the Apollo rocks are not from Earth？

　　A. They are too heavy. B. They are too huge. C. They are older than the oldest rocks on Earth. D. They are NASA samples. 61. Which of the following adjectives may best describe the author‘s view about the faking of the Apollo landings？

　　A. Negative. B. Subjective. C. Objective. D. Confirmative. 62. Which of the following best summarizes the main idea of the passage？

　　A. Apollo missions were faked. B. Moon rocks offer proof of landings of Apollo. C. Apollo inconsistencies offer proof of landings. D. A is not favored by common people.

　　Questions 63 to 65are based on the following passage：

　　Social change is more likely to occur in heterogeneous societies than in homogeneous ones，simply because there are more diverse points of view available in the former. There are more ideas，more conflicts of interest， and more groups and organizations of different persuasions. In addition，there is usually a greater worldly interest and tolerance in heterogeneous societies. All these factors tend to promote social change by opening more areas of life to decision rather than subjecting them to authority. In a quite homogeneous society， there are fewer occasions for people to perceive the need or the opportunity for change， because everything seems to be the same and， if not satisfactory， at least customary and undisputed. Within a society， social change is also likely to occur more frequently and more readily in the material aspects of the culture than in the non-material， for example， in technology rather than in values； in what has been learned later in life rather than what was learned early； in the less basic， less emotional， or less sacred aspects of society than in their opposites， like religion or a system of prestige； in the simple elements rather than in the complex ones； in form rather than in substance； and in elements congenial to the culture rather than in strange elements. Furthermore， social change is easier if it is gradual. For example， it comes more readily in human relations on a continuous scale rather than one with sharp dichotomies. This is one reason why change has not come more quickly to Black Americans as compared to other American minorities， because of the sharp difference in appearance between them and their white counterparts.

　　63. According to the passage， the main difference between a homogeneous society and a heterogeneous one lies in_________ A. the number of opportunities offered B. the nature of conflicts of interest C. the awareness of the need for change D. the role of social organizations 64. The author would most probably agree that changes are more likely to be successful in_______ A. production methods B. ideological concepts C. religious beliefs D. social behaviour 65. The passage is mainly about_______ A. the nature of social changes B. certain factors that determine social changes C. certain factors that facilitate social changes D. the difference between different social groups