剑桥雅思13听力答案解析!对于雅思考生来说，大家也知道听力的重要性，但是提升的难度也并非一件容易的事情。大家还是要勤学苦练，才能真正的提高听力分数。下面小编为大家整理了详细的内容，供大家参考!
Questions 31 - 40
Complete the notes below.
Write ONE WORD ONLY for each answer.
Effects of urban environments on animals
Introduction
Recent urban developments represent massive environmental changes. It waspreviously thought that only a few animals were suitable for city life, e.g.
● the 31.................... 一 because of its general adaptability
● the pigeon - because walls of city buildings are similar to 32.................... In fact, many urban animals are adapting with unusual 33 ......................
Recent research
● Emilie Snell-Rood studied small urbanised mammal specimens from museums in Minnesota.
- She found the size of their 34.................... had increased.
- She suggests this may be due to the need to locate new sources of 35.................... and to deal with new dangers.
● Catarina Miranda focused on the 36.................... of urban and rural blackbirds.
- She found urban birds were often braver, but were afraid of situations that were 37 ......................
● Jonathan Atwell studies how animals respond to urban environments.
- He found that some animals respond to 38.................... by producing lower levels of hormones.
● Sarah Partan's team found urban squirrels use their 39.................... to help them communicate.
Long-term possibilities
Species of animals may develop which are unique to cities. However, some changes may not be 40 ......................
谈话场景:环境研究讲座
人物关系:;主讲人独白
谈话话题:动物如何适应城市环境
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