Laura Molles has spent most of her time studying a little-known area of science：bird dialects（方言）.While some birds are born singers，many need to be taught how to sing by adults just like humans.Those birds，known as"true song birds"，can develop dialects，meaning their as sound a little different depending on where they live.
Just as speaking the local language can make it easier for humans to fit in，speaking the local bird dialect can increase a birds chances of finding a partner.And just as human dialects can sometimes disappear as the countries around the world become closer，bird dialects can be shaped or lost as cities grow.The similarities（相似點(diǎn)） between human language and bird dialects are noticed by Molles and other bird dialect experts.Donald Kroodsma，one of the experts，said，"There are great similarities，such as culture and oral（口頭的） tradition."
For centuries，birds' singing has been an inspiration to poets and musicians.However，scientists started paying attention to bird dialects in the 1950s.In the 1960s and 1970s，they separated baby birds from the adults to see if they would be able to sing their songs .Scientists found some birds couldn't sing while for others， singing was innate.In other words，they could sing when they were born.
Scientists also discovered that when birds were copying adults，they sometimes made mistakes.Those mistakes in turn were copied by other birds，and a local dialect developed.It meant that dialects could only exist（存在） in "true song birds"because they had a -learned oral tradition"。
（1）The sounds of the birds' singing are mainly influenced by DD.
A．bird dialect experts
B．the changing seasons
C．centuries-old traditions
D．their living environment
（2）What does Paragraph2 mainly talk about？ DD
A．The development of the study on bird dialects.
B．The influence of human language on bird dialects.
C．Reasons for the disappearance of some bird dialects.
D．Similarities between human language and bird dialects.
（3）The underlined part " singing was innate " means singing was BB.
A．a(chǎn)n advantage
B．a(chǎn) natural ability
C．a(chǎn) necessary skill
D．a(chǎn) valuable experience
（4）From the passage，we can infer that AA.
A．"tree song birds"have their own dialects
B．bird dialects will not disappear as cities grow
C．the latest study on bird dialects started in the 1950s
D．Donald Kroodsma to is a musician who got inspiration from birds
【答案】D；D；B；A
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：1引用：1難度：0.5
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