2017 年 8 月 26 日雅思考试真题解析

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2017 年 8 月 26 日雅思考试真题解析雅思考试听力真题答案及解析 Section 1 Lifeguard Application Form 1. Elsinore 2. 0778 96245 3. waiter 4. baseball 5.

1 2017 年 8 月 26 日雅思考试真题解析雅思考试听力真题答案及解析 Section 1 Lifeguard Application Form 1. Elsinore waiter 4. baseball 5. 4 months 6. October 7. diving 8. Saturday radio Section 2 Online Exchange Service 11. A some friends of him 12. A 6 weeks 13. B

2 14. C Ireland 双选 15-16: A DVDs E children's books 17. popular 18. taste 19. photo 20. feedback Section 3 Tourism in South Africa 21. undeveloped 22. range 23. community 24. training 25. big five 26. housing 27. conservation 28. B the sustainability resources 29. C definition of ecotours 30. A a description of the disadvantages of ecotours 2

3 Section 4 Organice Farming 31. sustainable 32. sales 33. energy 34. insects 35. potato energy 38. A higher crop yield 39. C determine whether organic farming is benefit to wildlife 40. A is due to consumers 口语 Part 1 1.Work/study 2.Accommodation 3.Hometown 4.Public transport/bus 5.Jewelry 雅思考试口语真题答案及解析 3

4 6.Sunshine 7.Fruits 8.History 9.Music 10.Housework Part 2 1.Describe an invention that has changed the world. 2.Describe your favorite piece of clothing. 3.Describe a holiday you would like to have in the future. 4.Describe a time you moved to a new home or school 5.Describe a well-paid job you would like to do in the future. 6.Describe a café you like to visit. 7.Describe a useful website that you often visit. 8.Describe a place where you feel crowded. 9.Describe a couple you know who have a happy marriage. 10.Describe a time you had a conversation with a stranger. 11.Describe an English lesson you enjoyed. 12.Describe a famous person that you are interested in. 4

5 13.Describe an important plant in your country (such as fruits, flowers or vegetables) that you like. 14.Describe a book that you would like to read again. 15.Describe a TV drama series you have watched. 16.Describe an invention that has changed the world. 17.Describe a polite person you met. 18.Describe a time you disagreed with a decision that others made. 19.Describe a kind of foreign food you tried. 20.Describe a plan you have for the future (but not related to work or study). 21. Describe an occasion that you spent time with a child 雅思考试阅读真题答案及解析 Passage 1T-REX Terminated Dinosaur Era A The age of dinosaurs, which ended with the cataclysmic bang of a meteor impact 65 million years ago, may also have begun with one. Researchers found recently the first direct, though tentative, geological evidence of a meteor impact 200 million years ago, coinciding with a mass 5

6 extinction that eliminated half of the major groups of life and opened the evolutionary door for what was then a relatively small group of animals: dinosaurs. B The cause and timing of the ascent of dinosaurs has have been much debated. It has beenimpossible to draw any specific conclusions because the transition between the origin of dinosaurs and their ascent to dominance has not been sampled in detail. There is a geochemical signature of something important happening, probably an asteroid impact, just before the time in which familiar dinosaur-dominated communities appear, said Dr. Paul E. Olsen, a professor of earth and environmental sciences at Columbia University s Lamont-Doherty Earth Observatory in Palisades, N.Y. C Olsen and his colleagues studied vertebrate fossils from 80 sites in four different ancient rift basins, part of a chain of rifts that formed as North America began to split apart from the supercontinent that existed million years ago. In the layer of rock corresponding to the extinction, the scientists found elevated amounts of the rare element iridium( 元素, 铱 ).A 6

7 precious metal belonging to the platinum group of elements, iridium is more abundant in meteorites than in rocks. D On Earth, A similar spike of iridium in 65 million-year-old rocks gave rise in the 1970s to the theory that a meteor caused the demise of the dinosaurs. That theory remained controversial for years until it was corroborated by other evidence and the impact site was found off the Yucatan Peninsula. Scientists will need to examine the new iridium anomaly similarly. The levels are only about one-tenth as high as those found at the later extinction. That could mean that the meteor was smaller or contained less iridium or that a meteor was not involved-iridium can also come from the Earth s interior, belched out by volcanic eruptions. Dr. Michael J. Benton, a professor of vertebrate paleontology at the University of Bristol in England, described the data as the first reasonably convincing evidence of an iridium spike. E The scientists found more evidence of rapid extinction in a database of 10,000 fossilized footprints in former lake basins from Virginia to Nova Scotia. Although individual species cannot usually be identified solely from their footprints the tracks of a house cat, for example, resemble those of a baby tiger footprints are much more plentiful than fossil bones and 7

8 can provide a more complete picture of the types of animals walking around. It makes it very easy for us to tell the very obvious signals of massive fauna change, Dr. Olsen said. Because the sediment piles up quickly in lake basins, the researchers were able to assign a date to each footprint, based on the layer of rock where it was found. They determined that the mix of animals walking across what is now the East Coast of North America changed suddenly about 200 million years ago. F The tracks of several major reptile groups continue almost up to the layer of rock marking the end of the Triassic geologic period ( 三叠纪 )202 million years ago, and then vanish in younger layers from the Jurassic period ( 白垩纪 ). I think the footprint methodology is very novel and very exciting, said Dr. Peter D. Ward, a professor of geology at the University of Washington. He called the data Very required more research. Last year, researchers led by Dr. Ward reported that the types of carbon in rock changed abruptly at this time, indicating a sudden dying off of plants over less than 50,000 years. The footprint research reinforces the hypothesis that the extinction was sudden. G 8

9 Several groups of dinosaurs survived that extinction, and the footprints show that new groups emerged soon afterward. Before the extinction, about one-fifth of the footprints were left by dinosaurs; after the extinction, more than half were from dinosaurs. The changes, the researchers said, occurred within 30,000 years-a geological blink of an eye. The scientists postulate that the asteroid or comet impact and the resulting death of Triassic competitors allowed a few groups of carnivorous dinosaurs to evolve in size very quickly and dominate the top of the terrestrial food chain globally. H Among the creatures that disappeared in the extinction were the dominant predators at the time: 15-foot-long rauisuchians ( 劳鳄目 )with great knife-like teeth and phytosaurs ( 植蜥类 )that resembled large crocodiles. Dinosaurs first evolved about 230 million years ago, but they were small, competing in a crowded ecological niche. Before the extinction 200 million years ago. the largest of the meat-eating dinosaurs were about the see of large dogs. Not terribly impressive. Dr. Olsen said. The dinosaurs quickly grew. The toe-to-heel length of the foot of a meat eater from the Jurassic period was on average 20 percent longer than its Triassic ancestor. Larger feet can carry bigger bodies;the scientists infer the dinosaurs 9

10 doubled in weight, eventually evolving into fearsome velociraptors ( 迅龙 ), Tyrannosaurus rex ( 霸王龙 ) and other large carnivorous dinosaurs. I The spurt in evolution is similar to the rise of mammals after the extinction of dinosaurs. Mammals, no larger than small dogs during the age of dinosaurs, diversified into tigers, elephants, whales and people after the reptilian competition died away. The success of the dinosaurs after the Triassic-Jurassic extinction may be why they did not survive the second extinction, Small animals always do better in catastrophic situations, Dr. Olsen said, because they can survive on smaller amounts of food. He also pointed out that scientists now believe the small dinosaurs did survive. We just call them birds, he said. 1. F 2. F 3. NG 4.T 5. T 6. F 7. T 8. blunt 10

11 9. crushing 10. bottom 11. ostrich 12. run 13. walker Passage 2 How Reliable Our Senses Are? 14. F 15. T 16. NG 17. F 18. C taste 19. A hearing 20. C taste 21. D smell 22. inactive 23. painkillers 24. increase 25. maximum 26. mild 11

12 Passage 3 The Digital Cinema27. A Vi 28. C i 29. D iv 30. E ii 31. F vii 32.G ix 33. H iii 34. B 35. G 36. C 37. F 38. A 39. D 40. A 雅思考试写作真题答案及解析小作文类型 : 饼图题目 :The charts show pollutants entering a particular area of ocean in 1997 and in

13 大作文类型 : 教育类题目 :Full-time university students should spend a lot of time in studying, but it is essential to be involved in other activities. To what extend do you agree or disagree? 13

Dinosaur Discovery. KindergarTen-second. Science TEKS. Vocabulary

Dinosaur Discovery. KindergarTen-second. Science TEKS. Vocabulary Dinosaur Discovery KindergarTen-second Science TEKS Kindergarten: K.2A, K.3C, K.10A, K.9B First Grade: 1.2A, 1.2D, 1.2E, 1.9C, 1.10A, 1.10C, 1.10D Second Grade: 2.2A, 2.3C, 2.9a, 2.9C, 2.10A Vocabulary