# Study on Australia crocodiles - 科目：雅思听力真题（Part 4） - 考频：超高频 - 最近考试：2019.3.9Asia/2019.2.9Asia/2016.9.3/2014.8.9/2011.8.27 - 题目数：10 - 来源页：https://www.yaquan.site/paper/ee9cabe9-e55c-424e-98b9-2c6aead0ebd4（在线机考练习与音频请访问该页面） - 数据更新：2026-10-29 ## 题目原文 00:00:02,580 You will hear part of a lecture about the study on Australian crocodiles. 00:00:09,240 First, you have some time to look at questions thirty-one to forty. 00:00:21,500 Now listen carefully and answer questions thirty-one to forty. 00:01:12,740 Around ten years ago, Australia Zoo, the University of Queensland, and Queensland Parks and Wildlife undertook a project to monitor the movements and behavior of the crocodiles in Lakefield National Park. 00:01:28,320 The aim of the study was to provide better information on how adult crocodiles there interact within a river system, enabling people to have better decisions on how to manage crocodile populations. 00:01:43,980 This project can lead the world in crocodile management because of the use of satellite, which enables scientists to stably receive accurate information being sent back to them on the computer. Even though the crocodiles can travel very long distances, scientists can still know where they are and study their habits. The study is going to help scientists gain further knowledge on crocodile behavior, which can help make informed decisions on the management plans for crocodiles, not only in Australia, but around the world. 00:02:24,580 Crocodile tracking isn't a new idea in Australia. 00:02:29,080 Crocodile studies have been previously conducted by radio. 00:02:34,720 A miniature electronic device was implanted under the skin of these animals, and they were released back into the river. 00:02:43,200 These tags enabled scientists to track the movements of these particular crocodiles over the next ten years. 00:02:52,200 Of course, there are some unexpected challenges. 00:02:57,109 The data transmitted from each receiver is recorded by some devices employed in the receiving stations. However, some devices are too old that they always lose signals due to a variety of reasons, 00:03:15,700 so they can't track those animals which they have been studying for months. 00:03:21,960 In order to study the crocodiles, they must first be captured so that the device can be put on them. 00:03:29,480 But this is a very difficult task because they are alert and afraid of being followed by humans. 00:03:38,910 So it might take the team several hours to capture one. 00:03:44,680 The tracking device has signal transmitters inside, and it's waterproof. It is attached to the head of the crocodile, so the crocodile cannot remove the device with its feet or tail. 00:04:02,260 The research has begun to reveal the movements of crocodiles. Data showed that crocodiles tend to be more active at nighttime. 00:04:13,549 The GPS sometimes shows that in some areas the crocodiles are overpopulated, so scientists at the park have to use a helicopter to relocate the crocodiles in order to control their population in the area. 00:04:29,560 A crocodile would be taken many kilometers away from its original place. 00:04:34,840 However, scientists found that the relocation methods were ineffective because the relocated crocodiles will return to their original location following the most direct route within one week. 00:04:50,120 The tracking data shows that the crocodiles swim right back to where they came from when moved. 00:04:58,040 Crocodiles sometimes travel hundreds of kilometers from Indonesia to Australia in order to reproduce. 00:05:06,320 It is interesting to see that they can always find their way and they will not get lost in the ocean. 00:05:13,880 Scientists realized the crocodiles are able to navigate. 00:05:19,600 This is an important ability for them when they have to migrate for very long distances. 00:05:27,040 We may wonder if human beings can learn from the crocodiles and find our way without using technology. 00:05:34,800 However, through lots of research and experiments, scientists conclude that crocodiles can tell directions by using their senses to the sun so that they know where they're going. 00:05:47,540 This is an ability which human beings don't possess. 00:05:51,780 Another finding is that like the migration of birds who can travel thousands and thousands of kilometers, crocodiles have the same system to help them travel. 00:06:03,000 The research is still going on in Northern Australia. Scientists are working hard to gather more information about this amazing creature. 00:06:15,080 That is the end of section four. You now have half a minute to check your answers. ## 题目与答案 ### 31. Research methods: 31 This research is world-leading because _____ is used in the study. Research methods: 31 This research is world-leading because _____ is used in the study. **答案**：satellite 原文定位：This project can lead the world in crocodile management because of the use of satellite, which enables scientists to stably receive accurate information being sent back to them on the computer 同义替换：「research」↔「project」；「world-leading」↔「lead the world」；「is used in the study」↔「the use of」 ### 32. 32 In previous studies, the tests were done with _____ . 32 In previous studies, the tests were done with _____ . **答案**：radio 原文定位：Crocodile studies have been previously conducted by radio 同义替换：「In previous studies」↔「have been previously conducted」；「the tests were done with」↔「by」 ### 33. 33 Problem of the old device: always losing _____ 33 Problem of the old device: always losing _____ **答案**：signals 原文定位：However, some devices are too old that they always lose signals due to a variety of reasons, so they can't track those animals which they have been studying for months 同义替换：「Problem of the old device」↔「some devices are too old that」；「always losing」↔「always lose」 ### 34. 34 The crocodiles are not easily captured, as they are cautious and try to avoid being followed by _____ . 34 The crocodiles are not easily captured, as they are cautious and try to avoid being followed by _____ . **答案**：humans 原文定位：But this is a very difficult task because they are alert and afraid of being followed by humans 同义替换：「not easily」↔「a very difficult task」；「as」↔「because」；「cautious」↔「alert」；「try to avoid」↔「afraid of」 ### 35. 35 A tracking device is attached to the _____ of the crocodiles. 35 A tracking device is attached to the _____ of the crocodiles. **答案**：head 原文定位：It is attached to the head of the crocodile, so the crocodile cannot remove the device with its feet or tail 同义替换：「is attached to」↔「is attached to」 ### 36. Relocation of crocodiles: ·36 Scientists relocate the crocidiles by using a _____ . Relocation of crocodiles: ·36 Scientists relocate the crocidiles by using a _____ . **答案**：helicopter 原文定位：so scientists at the park have to use a helicopter to relocate the crocodiles in order to control their population in the area 同义替换：「Scientists」↔「scientists at the park」；「relocate the crocodiles」↔「to relocate the crocodiles」；「by using a」↔「use a」 ### 37. ·37 Relocated crocodiles follow the most _____ route home ·37 Relocated crocodiles follow the most _____ route home **答案**：direct 原文定位：However, scientists found that the relocation methods were ineffective because the relocated crocodiles will return to their original location following the most direct route within one week 同义替换：「home」↔「to their original location」 ### 38. ·38 Crocodiles can find their way because they have the ability to _____ . ·38 Crocodiles can find their way because they have the ability to _____ . **答案**：navigate 原文定位：Scientists realized the crocodiles are able to navigate 同义替换：「have the ability to」↔「are able to」 ### 39. Conclusions: ·39 The crocodiles find their direction by using their senses to the _____ . Conclusions: ·39 The crocodiles find their direction by using their senses to the _____ . **答案**：sun 原文定位：scientists conclude that crocodiles can tell directions by using their senses to the sun so that they know where they're going 同义替换：「find」↔「tell」；「by using their senses to the」↔「by using their senses to the」 ### 40. ·40 Crocodiles have the same migration system as _____ . ·40 Crocodiles have the same migration system as _____ . **答案**：birds 原文定位：Another finding is that like the migration of birds who can travel thousands and thousands of kilometers, crocodiles have the same system to help them travel 同义替换：「have the same migration system」↔「have the same system」；「as」↔「like」 --- 以上内容由鸭圈雅思真题库（www.yaquan.site）提供，收录近期雅思考试真题回忆，支持在线机考模式免费练习。