【正文】 r expansion of wind power worldwide. Wind power is a virtually unlimited source of energy at favorable sites, and even excluding environmentally sensitive areas, the global potential of wind power is much higher than the current world electricity use. In theory, Argentina, Canada, Chile, China, Russia, and the United Kingdom could use wind to meet all of their energy needs. Wind power experts project that by the middle of the twentyfirst century wind power could supply more than 10 percent of the world’s electricity and 1025 percent of the electricity used in the United States.26. Based on the information in paragraph 1, which of the following best explains the term wind farms? Farms using windmills to pump water Research centers exploring the uses of wind Types of power plant mon in North Dakota Collections of wind turbines producing electric power Paragraph 1 is marked with an arrow .27. The word emit in the passage is closest in meaning to use require release destroy 28. Based on the information in paragraph 3 and paragraph 4, what can be inferred about the states of North Dakota, South Dakota, and Texas mentioned at the end of paragraph 1 ? They rely largely on coalfired power plants. They contain remote areas where the winds rarely die down. Over 1 percent of the electricity in these states is produced by wind farms. Wind farms in these states are being expanded to meet the power needs of the United States. Paragraph 3 and paragraph 4 are marked with arrows .29. According to paragraph 3, which of the following is true about periods when the demand for electricity is relatively low? These periods are times when wind turbines are powered by hydrogen gas. These periods provide the opportunity to produce and store energy for future use. These periods create storage problems for all forms of power generation. These periods occur as often as periods when the demand for electricity is high. Paragraph 3 is marked with an arrow .30. In paragraph 4, the author states that in areas where winds are not steady power does not reach all customers wind farms cannot be used solar power is more appropriate backup systems are needed Paragraph 4 is marked with an arrow .31. According to paragraph 4, what can be inferred about the problems of visual pollution and noise associated with wind farms? Both problems affect the efficiency of wind farms. Possible solutions are known for both problems. Wind power creates more noise than visual pollution. People are more concerned about visual pollution than noise. Paragraph 4 is marked with an arrow .32. The phrase this problem in the passage refers to interference with the flight patterns of migrating birds in certain areas building ridge lines that are ideal for wind turbines the killing of birds of prey by wind turbines meeting the demands of environmentalists who promote renewable wind energy 33. Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. Hawks, falcons, and eagles prefer to hunt along ridge lines, where wind turbines can kill large numbers of migratory birds. Wind turbines occasionally cause migratory birds to change their flight patterns and therefore may interfere with the areas where birds of prey prefer to hunt. Some of the best locations for large wind farms are places that may cause problems for migrating birds and birds of prey. Large wind farms in certain areas kill hawks, falcons, and eagles and thus might create a more ideal path for the flight of migratory birds. 34. In paragraph 5, why does the author give details about the estimated numbers of birds killed each year? To argue that wind farms should not be built along ridge lines To point out that the deaths of migratory birds exceed the deaths of birds of prey To explain why some environmentalists oppose wind energy To suggest that wind turbines result in relatively few bird deaths Paragraph 5 is marked with an arrow .35. The phrase amount to in the passage is closest in meaning to can identify change are reduced by total 36. The word project in the passage is closest in meaning to estimate respond argue plan 37. Which of the following statements most accurately reflects the author’s opinion about wind energy? Wind energy production should be limited to large wind farms. The advantages of wind energy outweigh the disadvantages. The technology to make wind energy safe and efficient will not be ready until the middle of the twentyfirst century. Wind energy will eventually supply many countries with most of their electricity. 38. Look at the four squares that indicate where the following sentence could be added to the passage.Some panies in the power industry are aware of this wider possibility and are planning sizable windfarm projects in states other than California.Where would the sentence best fit?Click on a square to add the sentence to the passage.39. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summarybecause they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.In the future, wind power is likely to bee a major source of the world’s energy supply.Answer ChoicesWind farms have already produced sufficient amounts of electricity to suggest that wind power could bee an important source of electric power.The wind energy produced by just a