听力音频：
Questions 31-40
Complete the notes below.
Write ONE WORD ONLY for each answer.
Urban birds research
Research focus and implications
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The research is about observation of urban birds.
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The research result can contribute to the 31…….of urban birds.
Stage 1
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To 32…….the amount of bird species in 5 big cities.
Stage 2
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To observe the bird habitats with the necessary 33…….of tunnels and bridges.【雅思徐老师微信 xlsjyy9】
Purpose
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To understand the 34…….of how city birds reproduce and breed.
Findings
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The 35…….in urban area can pose a big threat to birds.
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New habitats will help increase birds’ rate of 36…….
Research techniques
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Monitor the 37…….of bird callings for calculating the number of active birds.
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Record sounds in parks and gardens where birds 38…….and find food.
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Eliminate noises from human activities within a limited 39…….
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Select observation spots carefully to reduce 40…….caused by the noises and disturbance of the strong wind.
答案
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