【正文】 nt 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 sma。 The advantages of wind energy outweigh the disadvantages. respond change To point out that the deaths of migratory birds exceed the deaths of birds of prey 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. building ridge lines that are ideal for wind turbines Possible solutions are known for both problems. wind farms cannot be used These periods provide the opportunity to produce and store energy for future use. They contain remote areas where the winds rarely die down. require Research centers exploring the uses of wind manufacturing them produces little water pollution. The land under wind turbines can be used for grazing cattle and other purposes, and leasing land for wind turbines can provide extra ine for farmers and ranchers.Wind power has a significant cost advantage over nuclear power and has bee petitive with coalfired power plants in many places. With new technological advances and mass production, projected cost declines should make wind power one of the world’s cheapest ways to produce electricity. In the long run, electricity from large wind farms in remote areas might be used to make hydrogen gas from water during periods when there is less than peak demand for electricity. The hydrogen gas could then be fed into a storage system and used to generate electricity when additional or backup power is needed.Wind power is most economical in areas with steady winds. In areas where the wind dies down, backup electricity from a utility pany or from an energy storage system bees necessary. Backup power could also be provided by linking wind farms with a solar cell, with conventional or pumpedstorage hydropower, or with efficient naturalgasburning turbines. Some drawbacks to wind farms include visual pollution and noise, although these can be overe by improving their design and locating them in isolated areas.Large wind farms might also interfere with the flight patterns of migratory birds in certain areas, and they have killed large birds of prey (especially hawks, falcons, and eagles) that prefer to hunt along the same ridge lines that are ideal for wind turbines. The killing of birds of prey by wind turbines has pitted environmentalists who champion wildlife protection against environmentalists who promote renewable wind energy. Researchers are evaluating how serious this problem is and hope to find ways to eliminate or sharply reduce this problem. Some analysts also contend that the number of birds killed by wind turbines is dwarfed by birds killed by other humanrelated sources and by the potential loss of entire bird species from possible global warming. Recorded deaths of birds of prey and other birds in wind farms in the United States currently amount to no more than 300 per year. By contrast, in the United States an estimated 97 million birds are killed each year when they collide with buildings made of plate glass, 57 million are killed on highways each year。 Keeping the paintings a mystery will increase their importance. to look like an animal while a hunt took place To explain the state of consciousness the artists were in when they painted their pictures Because some tools used for painting were also used for hunting represented To present a mon opinion held by many scholars They also painted rocks outside caves. To suggest that ancient artists from all over the world painted animals on rocks Wild animals sometimes lived in the cave chambers. Ways chambers Have populations that are unstable in response to climate conditionsCompetitorsCan rarely find suitable soil for reproductionHave mechanisms for protecting themselves from predation are primarily petitors they spend more energy on their leaves, trunks and roots than on their acorns leaves containing tannin ancient Dandelions are called opportunists because they contribute to the natural processes of erosion and the creation of gaps in the forest canopy. growth the way in which the organism invests its energy resources paring the scientific concept to a familiar human experience plant or animal transform General Test InformationThis is a test of your ability to use English in an academic context. There are four sections that make up the plete test.In the Reading section, you will answer questions about three reading passages.In the Listening section, you will answer questions about two conversations and four lectures.In the Speaking section, you will answer six questions. Some of the questions ask you to speak based on your own experience. Other questions ask you to speak about lectures you have heard and/or passages you have read.In the Writing section, you will answer two questions. The first question asks you to write about the relationship between a lecture you will hear and a passage you will read. The second asks you to write an essay about a topic of general interest based on your experience.You will have a 10minute break after the Listening section.There will be directions for each section which explain how to answer the questions in that section.You should work quickly but carefully on the Listening and Reading questions. Some questions are more difficult than others, but try to answer every one to the best of your ability. If you are not