【文章內(nèi)容簡介】 . The word “sound” (Line 4, Para 2) most probably means “______”.A) plete B) reliable C) listen D) healthy17. Announcement of a scientific finding signifies ________.A) the repetition of the experimentB) the beginning of a new scientific inquiryC) a challenge to other researchers to prove it wrongD) the end of a process18. What can you infer from Einstein’s words?A) He needs to do many experiments to prove him right.B) Scientists do not need so many experiments.C) The more we repeat the experiment, the better the chances that the result is right.D) Scientific ideas are always open to challenge. 19. NASA’s announcement of the discovery of evidence of ancient life on Mars shows that ____.A) scientific method fails to give us the right answer.B) many scientific findings are not reliable.C) we are unfruitful in searching for life on another world.D) as a way of understanding the world around us, scientific method is a gradual process.20. According to the passage, the interest of the media lies in ____.A) how scientific research is processedB) what effects of scientific research has on human lifeC) what scientific research yieldsD) who do the researchPassage ThreeQuestions 21 to 25 are based on the following passage:During the second half of the twentieth century leisure became more wildly available to many people for the first time. One significant use of this increased leisure time was international tourism.Tourism is now big business. It has bee the world’s largest single industry, overtaking oil and vehicle production. Tourism is international. It involves virtually every country in the world. International travel involves huge number of people engaging in direct social exchanges. These people are from different places with different cultures and backgrounds. The mingling of cultures results in a heightened awareness of what humans have in mon. International tourism is therefore a major agent of globalization.Increasingly travelers are a key factor in the creation of jobs and new capital spending. Nowhere is free from their impact, and no government can ignore them. But large crowds cause congestion and environmental pollution, an increased demand for car parks, souvenir shops, restaurants, etc. How to strike a balance between running profitable tourism and destroying the environment to do so is a big and urgent problem for every country.In order to attract tourists, governments all over the world have been keen to advertise and promote their region’s special features. A Caribbean island is shown to be an untouched tropical paradise, while Thailand is marketed as on amazing place full of temples, culture and beautiful people forever smiling.This governmental promotion of the unique culture involves the construction of artificial “representations”of what was once locally important. The “traditional dance”held on beaches on Pacific island resorts has next to nothing to do with authentic tribal activities. They are simply shows for tourists which are often performed by people not from the local culture. This is only a reinvention of tradition.International tourism also exposes the host society to the outside world. Local people cannot escape from tourists and begin to see themselves as dependent for their own identity on tourists.Tourism is an unstoppable force in the shrinking world of globalization. How to reconcile the demands of international visitors to see the “sights”with the preservation of what is important and real about the local society is a challenge for all governments in the 21 first century.21. Which factor plays the most important role in the boom of international tourism?A) Improved standards of living.B) Increased leisure time.C) Increased demands for holidays.D) People are anxious to know different cultures of the host country.22. Which industry has bee the biggest one?A) Oil industry. B) Vehicle production.C) Tourism industry. D) Fashion industry.23. Which one is not the change brought about by International tourism? A) Globalization. B) Creation of jobs. C) Threats to local culture and environment. D) The preservation of what is important and real about the local society.24. Which definition are most suitable for the underlined word“artificial”and “authentic”in Paragraph 5 ?A) “real”and “false”.B) “manmade”and “real”.C) “true” and “manmade”.D)